_______________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
MAX9626/MAX9627/MAX9628
Low-Noise, Low-Distortion,
1.35GHz Fully Differential Amplifiers
19-5569; Rev 1; 2/11
Note: All devices are specified over the -40°C to +125°C
operating temperature range.
*EP = Exposed pad.
Ordering Information
Typical Operating Circuit
General Description
The MAX9626/MAX9627/MAX9628 are low-noise, low-
distortion, and high-bandwidth differential amplifier/ADC
drivers for use in applications from DC to 1.35GHz.
The exceptional low input-referred noise and low
distortion make these parts an excellent solution to
drive high-speed 12-bit to 16-bit pipeline ADCs. The
output common mode is set through the VOCM input
pin, thus eliminating the need for a coupling transformer
or AC-coupling capacitors. The ICs feature shutdown
mode for power savings and are offered in a 12-pin,
3mm x 3mm TQFN package for operation over a -40NC
to +125NC temperature range.
Applications
Communication
Medical Imaging
ATE
High-Performance Instrumentation
Features
S Low-Voltage Noise Density 3.6nV/√Hz
S Low Harmonic Distortion
HD2/HD3 of -102/-105dB at 10MHz
HD2/HD3 of -86/-80dB at 125MHz
S Factory Set Gain Options: 1V/V, 2V/V, 4V/V
S 1.35GHz Small-Signal Bandwidth
S Adjustable Output Common-Mode Voltage
S Differential-to-Differential or Single-Ended-to-
Differential Operation
S 25µA Shutdown Current
S +2.85V to +5.25V Single-Supply Voltage
S Small, 3mm x 3mm 12-Pin TQFN Package
EVALUATION KIT
AVAILABLE
VCC
RF
MAX19588
PIPELINE ADC
VREF
DRIVING THE MAX19588
HIGH-SPEED PIPELINE ADC
SINGLE-ENDED
INPUT
RT-
IN-
IN+
RF
RT
RT
RSRG
RG
RS
VCC
VEE
OUT+
OUT-
VOCM
SHDNB
RT+
MAX9626
MAX9627
MAX9628
PART GAIN (dB) PIN-PACKAGE TOP
MARK
MAX9626ATC+ 1 12 TQFN-EP* +ABS
MAX9627ATC+ 2 12 TQFN-EP* +ABT
MAX9628ATC+ 4 12 TQFN-EP* +ABU
MAX9626/MAX9627/MAX9628
Low-Noise, Low-Distortion,
1.35GHz Fully Differential Amplifiers
2
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
Supply Voltage (VCC to VEE)................................-0.3V to +5.5V
IN+, IN- ...........................................(VEE - 2.5V) to (VCC + 0.3V)
RT+, RT- .........................................(VEE - 2.5V) to (VCC + 0.3V)
RT- to IN- and RT+ to IN+ .................................................... Q2V
VOCM, SHDN, OUT+, OUT- ..........(VEE - 0.3V) to (VCC + 0.3V)
Output Short-Circuit Duration (OUT+ to OUT-) ....................... 1s
Continuous Input Current
(any pin except VEE, VCC, OUT+, OUT-) .................... Q20mA
Continuous Power Dissipation (TA = +70NC)
12-Pin TQFN Multilayer Board (deration 16.7mW/NC
above +70NC) ..........................................................1333.3mW
BJA ........................................................................60mW/NC
BJC ........................................................................11mW/NC
Operating Temperature Range ........................ -40NC to +125NC
Junction Temperature .....................................................+150NC
Storage Temperature Range ............................ -65NC to +150NC
Lead Temperature (soldering, 10s) ................................+300NC
Soldering Temperature (reflow) ......................................+260NC
ELECTRICAL CHARACTERISTICS
(VCC = +3.3V, VEE = 0V, VIN- = VIN+ = 0V, SHDN = VCC, VVOCM = VCC/2, RL = 500I (between OUT+ and OUT-), TA = -40°C to
+125°C. Typical values are at +25°C, unless otherwise noted.) (Note 1)
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DC SPECIFICATIONS
Supply Voltage Range VCC Guaranteed by PSRR 2.85 5.25 V
Supply Current ICC
SHDN = VCC 59 80 mA
SHDN = GND 25 50 FA
Power-Supply Rejection Ratio PSRR
VVCOM = VCC/2,
2.85V P VCC P 5.25V,
-40NC P TA P +85NC
MAX9626 66 89
dB
MAX9627 66 92
MAX9628 64 92
VVCOM = VCC/2,
2.85V P VCC P 5.25V,
-40NC P TA P +125NC
MAX9626 60 89
MAX9627 63 92
MAX9628 64 92
Differential Voltage Gain GDIFF VOUT+, VOUT- = -1V to +1V
MAX9626 1
V/VMAX9627 2
MAX9628 4
Gain Error VOUT+, VOUT- = -1V to +1V
MAX9626 -2 ±0.2 +2
%MAX9627 -2 ±0.2 +2
MAX9628 -2 ±0.2 +2
Input Offset Voltage
Differential input,
VIN- = VIN+ = VCC/2,
TA = +25NC
MAX9626 2 ±11
mV
MAX9627 2 ±8
MAX9628 2 ±8
Differential input,
VIN- = VIN+ = VCC/2
TA = -40°C to +125NC
MAX9626 2 ±13
MAX9627 2 ±10
MAX9628 2 ±10
Common-Mode Input Voltage
Range (Note 2) VICM Guaranteed by CMRR
MAX9626 -1.5 +1.5
VMAX9627 -0.75 +1.5
MAX9628 -0.4 +1.5
MAX9626/MAX9627/MAX9628
Low-Noise, Low-Distortion,
1.35GHz Fully Differential Amplifiers
3
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +3.3V, VEE = 0V, VIN- = VIN+ = 0V, SHDN = VCC, VVOCM = VCC/2, RL = 500I (between OUT+ and OUT-), TA = -40°C to
+125°C. Typical values are at +25°C, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Common-Mode Rejection Ratio CMRR
MAX9626 46 62
dBMAX9627 50 69
MAX9628 54 79
Output Voltage Swing
VOH VOCM = VCC VCC -
1
VCC -
0.8 V
VOL VVOCM = 0V VEE +
0.65
VEE +
0.9
Output Current Source: VCC - VOUT = 0.95V 100 mA
Sink: VOUT - VEE = 0.95V 100
Common-Mode Input
Resistance
MAX9626 200
I
MAX9627 225
MAX9628 312
Differential Input Resistance
MAX9626 267
I
MAX9627 225
MAX9628 209
Input Termination Resistance RT- to IN- and RT+ to IN+ 64 I
AC SPECIFICATIONS
3dB Large-Signal Bandwidth LSB3dB VOUT+ - VOUT- = 2.0VP-P
MAX9626 1150
MHzMAX9627 1350
MAX9628 1000
0.1dB Large-Signal Bandwidth LSB0.1dB VOUT+ - VOUT- = 2.0VP-P
MAX9626 80
MHzMAX9627 80
MAX9628 90
Slew Rate SR VOUT+ - VOUT- = 2.0VP-P
MAX9626 6500
V/Fs
MAX9627 6100
MAX9628 5500
AC Power-Supply Rejection
Ratio AC PSRR VVOCM = 1.65V, f = 10MHz
MAX9626 64
dBMAX9627 65
MAX9628 62
Input Voltage Noise eNf = 10MHz
MAX9626 5.7
nV/√Hz
MAX9627 4.3
MAX9628 3.6
Noise Figure NF RS = 50I
MAX9626 22.2
dBMAX9627 19.7
MAX9628 18.1
MAX9626/MAX9627/MAX9628
Low-Noise, Low-Distortion,
1.35GHz Fully Differential Amplifiers
4
Note 1: All devices are 100% production tested at TA = +25°C. Temperature limits are guaranteed by design.
Note 2: Input voltage range is a function of VOCM. See the Input Voltage Range section for details.
Note 3: Limits are guaranteed by design based on bench characterization. Testing is functional using different limits.
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +3.3V, VEE = 0V, VIN- = VIN+ = 0V, SHDN = VCC, VVOCM = VCC/2, RL = 500I (between OUT+ and OUT-), TA = -40°C to
+125°C. Typical values are at +25°C, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Harmonic Distortion HD
f = 10MHz,
VOUT+ - VOUT-
= 2.0VP- P,
VCC = 5V
MAX9626 HD2 -98
dBc
HD3 -103
MAX9627 HD2 -102
HD3 -105
MAX9628 HD2 -91
HD3 -97
f = 125MHz,
VOUT+ - VOUT-
= 2.0VP-P,
VCC = 5V
MAX9626 HD2 -80
HD3 -80
MAX9627 HD2 -86
HD3 -80
MAX9628 HD2 -80
HD3 -75
Capacitive Load CLOAD No sustained oscillation 10 pF
Power-Up Time 2.3 Fs
VOCM INPUT PIN
Input Voltage Range Guaranteed by VOCM CMRR test 1.1 VCC -
1.1 V
Output Common-Mode
Rejection Ratio (Note 3) CMRRVOCM 52 64 dB
Output Common-Mode Gain
(Note 3) GVOCM VVOCM = 1.1V to VCC -1.1V,
TA = -40°C to +125NC0.98 0.99 1.00 V/V
Input Offset Voltage (Note 3) 12 ±21 mV
Input Bias Current 1 10 FA
Input Impedance 35 MI
Output Balance Error DVOUT = 1VPP , f = 10MHz -77 dB
-3dB Small-Signal Bandwidth VVOCM = 0.1VP-P 700 MHz
SHDN INPUT PIN
Input Voltage VIL 0.8 V
VIH 1.2
Input Current IIL VSHDN = 0V 0.01 2 FA
IIH VSHDN = VCC 3.3 20
Turn-On Time tON 0.6 Fs
Turn-Off Time tOFF 0.2
MAX9626/MAX9627/MAX9628
Low-Noise, Low-Distortion,
1.35GHz Fully Differential Amplifiers
5
Typical Operating Characteristics
(VCC = +3.3V, VEE = 0V, VIN- = VIN+ = 0V, SHDN = VCC, VICM = 0V, VVOCM = VCC/2, RL = 500ω, single ended. Plot applies to all
versions, unless noted otherwise.)
MAX9626 toc01
FREQUENCY (kHz)
HARMONIC DISTIORTION (dBc)
100,000
-110
10,000
HARMONIC DISTORTION vs. FREQUENCY
RL = 100I, VCC = 5V
-90
-100
-80
-70
-60
-50
-40
HD3
HD2
MAX9626
MAX9626 toc02
FREQUENCY (kHz)
HARMONIC DISTIORTION (dBc)
100,000
-110
10,000
HARMONIC DISTORTION vs. FREQUENCY
RL = 500I, VCC = 5V
-90
-100
-80
-70
-60
-50
-40
MAX9626
HD2
HD3
MAX9626 toc03
FREQUENCY (kHz)
HARMONIC DISTIORTION (dBc)
100,000
-110
10,000
HARMONIC DISTORTION vs. FREQUENCY
RL = 1kI, VCC = 5V
-90
-100
-80
-70
-60
-50
-40
HD3
HD2
MAX9626
MAX9626 toc04
FREQUENCY (kHz)
HARMONIC DISTIORTION (dBc)
100,000
-110
10,000
HARMONIC DISTORTION vs. FREQUENCY
RL = 100I, VCC = 5V
-90
-100
-80
-70
-60
-50
-40
MAX9627
HD2
HD3
HARMONIC DISTORTION vs. FREQUENCY
RL = 500I, VCC = 5V
MAX9626 toc05
FREQUENCY (kHz)
HARMONIC DISTORTION (dBc)
100,000
-110
-100
-90
-80
-70
-60
-50
-40
-120
10,000
HD2
HD3
MAX9627
HARMONIC DISTORTION vs. FREQUENCY
RL = 1kI, VCC = 5V
MAX9626 toc06
FREQUENCY (kHz)
HARMONIC DISTORTION (dBc)
100,000
-110
-100
-90
-80
-70
-60
-50
-40
-120
10,000
MAX9627
HD2
HD3
HARMONIC DISTORTION vs. FREQUENCY
RL = 100I, VCC = 5V
MAX9626 toc07
FREQUENCY (kHz)
HARMONIC DISTIORTION (dBc)
100,000
-90
-80
-70
-60
-50
-40
-100
10,000
HD2
HD3
MAX9628
HARMONIC DISTORTION vs. FREQUENCY
RL = 500I, VCC = 5V
MAX9626 toc08
FREQUENCY (kHz)
HARMONIC DISTORTION (dBc)
100,000
-110
-100
-90
-80
-70
-60
-50
-40
-120
10,000
MAX9628
HARMONIC DISTORTION vs. FREQUENCY
RL = 1kI, VCC = 5V
MAX9626 toc09
FREQUENCY (kHz)
HARMONIC DISTORTION (dBc)
100,000
-110
-100
-90
-80
-70
-60
-50
-40
-120
10,000
MAX9628
HD2
HD3
MAX9626/MAX9627/MAX9628
Low-Noise, Low-Distortion,
1.35GHz Fully Differential Amplifiers
6
Typical Operating Characteristics (continued)
(VCC = +3.3V, VEE = 0V, VIN- = VIN+ = 0V, SHDN = VCC, VICM = 0V, VVOCM = VCC/2, RL = 500ω, single ended. Plot applies to all
versions, unless noted otherwise.)
HARMONIC DISTORTION vs. LOAD
f = 125MHz, VCC = 5V
MAX9626 toc13
LOAD (I)
HARMONIC DISTORTION (dB)
900800100 200 300 500 600400 700
-110
-100
-90
-80
-70
-60
-50
-40
-120
0 1000
MAX9627
HD3
HD2
HARMONIC DISTORTION vs. LOAD
f = 10MHz, VCC = 5V
MAX9626 toc14
LOAD (I)
HARMONIC DISTORTION (dB)
900800700600500400300200100
-110
-100
-90
-80
-70
-60
-120
0 1000
MAX9628
HD2
HD3
HARMONIC DISTORTION vs. LOAD
f = 125MHz, VCC = 5V
MAX9626 toc15
LOAD (I)
HARMONIC DISTORTION (dB)
900800100 200 300 500 600400 700
-95
-90
-85
-80
-75
-70
-65
-60
-100
0 1000
MAX9628
HD3
HD2
HARMONIC DISTORTION vs.
DIFFERENTIAL OUTPUT SWING
f = 10MHz, VCC = 5V
MAX9626 toc16
OUTPUT SWING (V)
HARMONIC DISTORTION (dB)
2.82.62.42.22.01.81.61.41.2
-110
-100
-90
-80
-70
-60
-120
1.0 3.0
MAX9627
HD3
HD2
HARMONIC DISTORTION vs. LOAD
f = 10MHz, VCC = 5V
MAX9626 toc10
LOAD (I)
HARMONIC DISTORTION (dB)
900800700600500400300200100
-110
-100
-90
-80
-70
-60
-120
0 1000
MAX9626
HD2
HD3
HARMONIC DISTORTION vs. LOAD
f = 125MHz, VCC = 5V
MAX9626 toc11
LOAD (I)
HARMONIC DISTORTION (dB)
900800700600500400300200100
-85
-80
-75
-70
-65
-60
-90
0 1000
MAX9626
HD3
HD2
HARMONIC DISTORTION vs. LOAD
f = 10MHz, VCC = 5V
MAX9626 toc12
LOAD (I)
HARMONIC DISTORTION (dB)
900800700600500400300200100
-110
-100
-90
-80
-70
-60
-120
0 1000
MAX9627
HD2
HD3
HARMONIC DISTORTION
vs. DIFFERENTIAL OUTPUT SWING
f = 10MHz, VCC = 5V
MAX9626 toc15b
OUTPUT SWING (V)
HARMONIC DISTORTION (dB)
2.82.62.42.22.01.81.61.41.2
-110
-100
-90
-80
-70
-60
-120
1.0 3.0
HD3
HD2
MAX9626
HARMONIC DISTORTION
vs. DIFFERENTIAL OUTPUT SWING
f = 125MHz, VCC = 5V
MAX9626 toc15c
OUTPUT SWING (V)
HARMONIC DISTORTION (dB)
2.82.62.42.22.01.81.61.41.2
-110
-100
-90
-80
-70
-60
-120
1.0 3.0
HD3
HD2
MAX9626
MAX9626/MAX9627/MAX9628
Low-Noise, Low-Distortion,
1.35GHz Fully Differential Amplifiers
7
Typical Operating Characteristics (continued)
(VCC = +3.3V, VEE = 0V, VIN- = VIN+ = 0V, SHDN = VCC, VICM = 0V, VVOCM = VCC/2, RL = 500ω, single ended. Plot applies to all
versions, unless noted otherwise.)
HARMONIC DISTORTION vs.
DIFFERENTIAL OUTPUT SWING
f = 125MHz, VCC = 5V
MAX9626 toc17
OUTPUT SWING (V)
HARMONIC DISTORTION (dB)
2.82.62.42.22.01.81.61.41.2
-110
-100
-90
-80
-70
-60
-120
1.0 3.0
MAX9627
HD3
HD2
HARMONIC DISTORTION vs.
DIFFERENTIAL OUTPUT SWING
f = 10MHz, VCC = 5V
MAX9626 toc18
OUTPUT SWING (V)
HARMONIC DISTORTION (dB)
2.82.62.42.22.01.81.61.41.2
-110
-100
-90
-80
-70
-60
-120
1.0 3.0
MAX9628
HD2
HD3
HARMONIC DISTORTION vs.
DIFFERENTIAL OUTPUT SWING
f = 125MHz, VCC = 5V
MAX9626 toc19
OUTPUT SWING (V)
HARMONIC DISTORTION (dB)
2.82.62.42.22.01.81.61.41.2
-110
-100
-90
-80
-70
-60
-120
1.0 3.0
MAX9628 HD2
HD3
SMALL-SIGNAL BANDWIDTH vs. FREQUENCY
VCC = 3.3V, RL = 100I, VSIG = 100mVP-P
MAX9626 toc20
FREQUENCY (Hz)
GAIN (dB)
1G100M10M
-8
-6
-4
-2
0
2
4
6
8
10
-10
1M 10G
MAX9626
SMALL-SIGNAL BANDWIDTH vs. FREQUENCY
VCC = 5V, RL = 100I, VSIG = 100mVP-P
MAX9626 toc21
FREQUENCY (Hz)
GAIN (dB)
-8
-6
-4
-2
0
2
4
6
8
10
-10
MAX9626
1G100M10M1M 10G
SMALL-SIGNAL BANDWIDTH vs. FREQUENCY
VCC = 3.3V, RL = 100I, VSIG = 100mVP-P
MAX9626 toc22
FREQUENCY (Hz)
GAIN (dB)
-8
-6
-4
-2
0
2
4
6
8
10
-10
MAX9627
1G100M10M1M 10G
SMALL-SIGNAL BANDWIDTH vs. FREQUENCY
VCC = 5V, RL = 100I, VSIG = 100mVP-P
MAX9626 toc23
FREQUENCY (Hz)
GAIN (dB)
-8
-6
-4
-2
0
2
4
6
8
10
-10
MAX9627
1G100M10M1M 10G
SMALL-SIGNAL BANDWIDTH vs. FREQUENCY
VCC = 3.3V, RL = 100I, VSIG = 100mVP-P
MAX9626 toc24
FREQUENCY (Hz)
GAIN (dB)
-8
-6
-4
-2
0
2
4
6
8
10
-10
MAX9628
1G100M10M1M 10G
FREQUENCY (Hz)
SMALL-SIGNAL BANDWIDTH vs. FREQUENCY
VCC = 5V, RL = 100I, VSIG = 100mVP-P
MAX9626 toc25
GAIN (dB)
-8
-6
-4
-2
0
2
4
6
8
10
-10
MAX9628
1G100M10M1M 10G
MAX9626/MAX9627/MAX9628
Low-Noise, Low-Distortion,
1.35GHz Fully Differential Amplifiers
8
Typical Operating Characteristics (continued)
(VCC = +3.3V, VEE = 0V, VIN- = VIN+ = 0V, SHDN = VCC, VICM = 0V, VVOCM = VCC/2, RL = 500ω, single ended. Plot applies to all
versions, unless noted otherwise.)
FREQUENCY (Hz)
LARGE-SIGNAL BANDWIDTH vs. FREQUENCY
VCC = 3.3V, RL = 100I, VSIG = 2VP-P
MAX9626 toc26
GAIN (dB)
-8
-6
-4
-2
0
2
4
6
8
10
-10
MAX9626
1G100M10M1M 10G
FREQUENCY (Hz)
LARGE-SIGNAL BANDWIDTH vs. FREQUENCY
VCC = 5V, RL = 100I, VSIG = 2VP-P
MAX9626 toc27
GAIN (dB)
-8
-6
-4
-2
0
2
4
6
8
10
-10
MAX9626
1G100M10M1M 10G
FREQUENCY (Hz)
LARGE-SIGNAL BANDWIDTH vs. FREQUENCY
VCC = 3.3V, RL = 100I, VSIG = 2VP-P
MAX9626 toc28
GAIN (dB)
-8
-6
-4
-2
0
2
4
6
8
10
-10
MAX9627
1G100M10M1M 10G
FREQUENCY (Hz)
LARGE-SIGNAL BANDWIDTH vs. FREQUENCY
VCC = 5V, RL = 100I, VSIG = 2VP-P
MAX9626 toc29
GAIN (dB)
-8
-6
-4
-2
0
2
4
6
8
10
-10
MAX9627
1G100M10M1M 10G
FREQUENCY (Hz)
LARGE-SIGNAL BANDWIDTH vs. FREQUENCY
VCC = 3.3V, RL = 100I, VSIG = 2VP-P
MAX9626 toc30
GAIN (dB)
-8
-6
-4
-2
0
2
4
6
8
10
-10
MAX9628
1G100M10M1M 10G
FREQUENCY (Hz)
LARGE-SIGNAL BANDWIDTH vs. FREQUENCY
VCC = 5V, RL = 100I, VSIG = 2VP-P
MAX9626 toc31
GAIN (dB)
-8
-6
-4
-2
0
2
4
6
8
10
-10
MAX9628
1G100M10M1M 10G
SMALL-SIGNAL BANDWIDTH
vs. RESISTIVE LOAD
MAX9626 toc32
RL (I)
SMALL-SIGNAL BANDWIDTH (GHz)
900800600 700200 300 400 500100
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0
0 1000
MAX9628MAX9626
MAX9627
LARGE-SIGNAL BANDWIDTH
vs. RESISTIVE LOAD
MAX9626 toc33
RL (I)
LARGE-SIGNAL BANDWIDTH (GHz)
900800600 700200 300 400 500100
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0
0 1000
MAX9628
MAX9627
MAX9626
SMALL-SIGNAL BANDWIDTH vs. VVOCM
MAX9626 toc34
VVOCM (V)
SMALL SIGNAL BANDWIDTH (GHz)
3.53.02.52.01.5
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0
1.0 4.0
VCC = 5V
VCC = 3.3V
MAX9626
MAX9626/MAX9627/MAX9628
Low-Noise, Low-Distortion,
1.35GHz Fully Differential Amplifiers
9
Typical Operating Characteristics (continued)
(VCC = +3.3V, VEE = 0V, VIN- = VIN+ = 0V, SHDN = VCC, VICM = 0V, VVOCM = VCC/2, RL = 500ω, single ended. Plot applies to all
versions, unless noted otherwise.)
SMALL-SIGNAL BANDWIDTH vs. VVOCM
MAX9626 toc35
VVOCM (V)
SMALL-SIGNAL BANDWIDTH (GHz)
3.53.01.5 2.0 2.5
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0
1.0 4.0
VCC = 5V
VCC = 3.3V
MAX9627
SMALL-SIGNAL BANDWIDTH vs. VVOCM
MAX9626 toc36
VVOCM (V)
SMALL-SIGNAL BANDWIDTH (GHz)
3.53.02.52.01.5
0.2
0.4
0.6
0.8
1.0
1.2
0
1.0 4.0
VCC = 5V
VCC = 3.3V
MAX9628
INPUT REFERRED VOLTAGE NOISE
vs. FREQUENCY
MAX9626 toc37
FREQUENCY (Hz)
INPUT REFERRED VOLTAGE NOISE (nV/√Hz)
10
100
1000
1
1M100k10k1k1001010.1 10M
MAX9626
INPUT REFERRED VOLTAGE NOISE
vs. FREQUENCY
MAX9626 toc38
FREQUENCY (Hz)
INPUT REFERRED VOLTAGE NOISE (nV/√Hz)
10
100
1000
1
1M100k10k1k1001010.1 10M
MAX9627
INPUT REFERRED VOLTAGE NOISE
vs. FREQUENCY
MAX9626 toc39
FREQUENCY (Hz)
INPUT REFERRED VOLTAGE NOISE (nV/√Hz)
10
100
1000
1
1M100k10k1k1001010.1 10M
MAX9628
NOISE FIGURE vs. FREQUENCY
MAX9626 toc40
FREQUENCY (Hz)
NOISE FIGURE (dB)
10
20
30
40
50
60
70
0
1M100k10k1k1001010.1 10M
MAX9626
MAX9627
MAX9628
COMMON-MODE REJECTION RATIO
vs. FREQUENCY (MAX9626)
MAX9626 toc41
FREQUENCY (MHz)
CMRR (dB)
100101
10
20
30
40
50
60
70
0
0.1 1000
COMMON-MODE REJECTION RATIO
vs. FREQUENCY (MAX9627)
MAX9626 toc42
CMRR (dB)
10
20
30
40
50
60
70
80
0
FREQUENCY (MHz)
1001010.1 1000
COMMON-MODE REJECTION RATIO
vs. FREQUENCY (MAX9628)
MAX9626 toc43
CMRR (dB)
10
20
30
40
50
60
70
80
0
FREQUENCY (MHz)
1001010.1 1000
MAX9626/MAX9627/MAX9628
Low-Noise, Low-Distortion,
1.35GHz Fully Differential Amplifiers
10
Typical Operating Characteristics (continued)
(VCC = +3.3V, VEE = 0V, VIN- = VIN+ = 0V, SHDN = VCC, VICM = 0V, VVOCM = VCC/2, RL = 500ω, single ended. Plot applies to all
versions, unless noted otherwise.)
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (MAX9626)
MAX9626 toc44
FREQUENCY (MHz)
PSRR (dB)
1001010.1
10
20
30
40
50
60
70
80
90
100
0
0.01 1000
OFFSET VOLTAGE HISTOGRAM
(MAX9626)
MAX9626 toc45
DIFFERENTIAL OFFSET VOLTAGE (mV)
OCCURANCE (%)
10-1-2-3
5
10
15
20
25
30
35
0
-4
OFFSET VOLTAGE HISTOGRAM
(MAX9627)
MAX9626 toc46
DIFFERENTIAL OFFSET VOLTAGE (mV)
OCCURANCE (%)
10-1-2-3
5
10
15
20
25
30
35
40
45
50
0
-4
OFFSET VOLTAGE HISTOGRAM
(MAX9628)
MAX9626 toc47
DIFFERENTIAL OFFSET VOLTAGE (mV)
OCCURANCE (%)
10-1-2-3
10
20
30
40
50
60
0
-4
GAIN ERROR HISTOGRAM
(MAX9626)
MAX9626 toc48
GAIN ERROR (%)
OCCURANCE (%)
0.40.2-0.2 0-0.6 -0.4-0.8
5
10
15
20
25
30
35
40
45
50
0
-1.0
GAIN ERROR HISTOGRAM
(MAX9627)
MAX9626 toc49
GAIN ERROR (%)
OCCURANCE (%)
0.40.20-0.2-0.4-0.6-0.8
10
20
30
40
50
60
0
-1.0
GAIN ERROR HISTOGRAM
(MAX9628)
MAX9626 toc50
GAIN ERROR (%)
OCCURANCE (%)
0.40.20-0.2-0.4-0.6-0.8
10
20
30
40
50
60
0
-1.0
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (MAX9627)
MAX9626 toc44a
FREQUENCY (MHz)
PSRR (dB)
1001010.1
10
20
30
40
50
60
70
80
90
100
0
0.01 1000
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (MAX9628)
MAX9626 toc44b
FREQUENCY (MHz)
PSRR (dB)
1001010.1
10
20
30
40
50
60
70
80
90
100
0
0.01 1000
MAX9626/MAX9627/MAX9628
Low-Noise, Low-Distortion,
1.35GHz Fully Differential Amplifiers
11
Typical Operating Characteristics (continued)
(VCC = +3.3V, VEE = 0V, VIN- = VIN+ = 0V, SHDN = VCC, VICM = 0V, VVOCM = VCC/2, RL = 500ω, single ended. Plot applies to all
versions, unless noted otherwise.)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX9626 toc51
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
5.53.5 4.0 4.5 5.03.0
52
54
56
58
60
62
64
50
2.5
MAX9626
MAX9627 MAX9628
SUPPLY CURRENT
vs. TEMPERATURE
MAX9626 toc52
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
1000 25 50 75-25
52
54
56
58
60
62
64
66
68
70
50
-50
MAX9627 MAX9628
MAX9626
S PARAMETERS vs. FREQUENCY
(MAX9626)
MAX9626 toc52a
FREQUENCY (MHz)
GAIN MAGNITUDE (dB)
100010010
-100
-80
-60
-40
-20
0
-120
1
10,000
S11
S22
S12
S PARAMETERS vs. FREQUENCY
(MAX9627)
MAX9626 toc52b
FREQUENCY (MHz)
GAIN MAGNITUDE (dB)
100010010
-100
-80
-60
-40
-20
0
-120
1 10,000
S11
S22
S12
S PARAMETERS vs. FREQUENCY
(MAX9628)
MAX9626 toc52c
FREQUENCY (MHz)
GAIN MAGNITUDE (dB)
100010010
-100
-80
-60
-40
-20
0
-120
1 10,000
S11
S22
S12
INTERMODULATION DISTORTION
vs. FREQUENCY (MAX9626, VCC = 5V)
MAX9626 toc52d
FREQUENCY (MHz)
HARMONIC DISTORTION (dBc)
17515012510075
-90
-85
-80
-75
-70
-65
-60
-55
-50
-95
50 200
IMD2, VOUT = 2VP-P
IMD2, VOUT = 3VP-P
FREQUENCY SPACING = 100kHz
IMD3, VOUT = 3VP-P
IMD3, VOUT = 2VP-P
INTERMODULATION DISTORTION
vs. FREQUENCY (MAX9626, VCC = 3.3V)
MAX9626 toc52e
FREQUENCY (MHz)
HARMONIC DISTORTION (dBc)
1751501251007550 200
IMD2, VOUT = 1VP-P
IMD2, VOUT = 2VP-P
FREQUENCY SPACING = 100kHz
IMD3, VOUT = 1VP-P
IMD3, VOUT = 2VP-P
-85
-80
-75
-70
-65
-60
-55
-50
-90
INTERMODULATION DISTORTION
vs. FREQUENCY (MAX9627, VCC = 5V)
MAX9626 toc52f
FREQUENCY (MHz)
HARMONIC DISTORTION (dBc)
1751501251007550 200
IMD2, VOUT = 2VP-P
IMD2, VOUT = 3VP-P
FREQUENCY SPACING = 100kHz
IMD3, VOUT = 2VP-P
IMD3, VOUT = 3VP-P
-85
-80
-75
-70
-65
-60
-55
-50
-90
INTERMODULATION DISTORTION
vs. FREQUENCY (MAX9627, VCC = 3.3V)
MAX9626 toc52g
FREQUENCY (MHz)
HARMONIC DISTORTION (dBc)
1751501251007550 200
IMD2, VOUT = 1VP-P
IMD2, VOUT = 2VP-P
FREQUENCY SPACING = 100kHz
IMD3, VOUT = 1VP-P IMD3, VOUT = 2VP-P
-85
-80
-75
-70
-65
-60
-55
-50
-90
MAX9626/MAX9627/MAX9628
Low-Noise, Low-Distortion,
1.35GHz Fully Differential Amplifiers
12
Typical Operating Characteristics (continued)
(VCC = +3.3V, VEE = 0V, VIN- = VIN+ = 0V, SHDN = VCC, VICM = 0V, VVOCM = VCC/2, RL = 500ω, single ended. Plot applies to all
versions, unless noted otherwise.)
OUTPUT BALANCE ERROR
vs. FREQUENCY
MAX9626 toc52j
OUTPUT BALANCE ERROR (dB)
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
FREQUENCY (MHz)
1000100101 10,000
OUTPUT IMPEDANCE vs. FREQUENCY
MAX9626 toc52k
FREQUENCY (MHz)
OUTPUT IMPEDANCE (I)
10010
0.1
1
10
100
0.01
1 1000
VCOM SMALL-SIGNAL GAIN
vs. FREQUENCY
MAX9626 toc52l
FREQUENCY (MHz)
SMALL-SIGNAL GAIN (dB)
100010010
-10
-5
0
5
10
15
-15
1 10,000
VOCM TRANSIENT RESPONSE
(MAX9626, VIN = 1.6V TO 1.7V STEP)
MAX9626 toc52m
50mV/div
50mV/div
2ns/div
VOCM
OUT_CM
VOCM TRANSIENT RESPONSE
(MAX9626, VIN = 1.15V TO 2.15V STEP)
MAX9626 toc52n
500mV/div
500mV/div
2ns/div
VOCM
OUT_CM
VOCM TRANSIENT RESPONSE
(MAX9627, VIN = 1.6V TO 1.7V STEP)
MAX9626 toc52o
50mV/div
50mV/div
2ns/div
VOCM
OUT_CM
VOCM TRANSIENT RESPONSE
(MAX9627, VIN = 1.15V TO 2.15V STEP)
MAX9626 toc52p
500mV/div
500mV/div
2ns/div
VOCM
OUT_CM
INTERMODULATION DISTORTION
vs. FREQUENCY (MAX9628, VCC = 5V)
MAX9626 toc52h
FREQUENCY (MHz)
HARMONIC DISTORTION (dBc)
1751501251007550 200
IMD2, VOUT = 2VP-P
IMD2, VOUT = 3VP-P
FREQUENCY SPACING = 100kHz
IMD3, VOUT = 2VP-P IMD3, VOUT = 3VP-P
-90
-85
-80
-75
-70
-65
-60
-55
-50
-95
INTERMODULATION DISTORTION
vs. FREQUENCY (MAX9628, VCC = 3.3V)
MAX9626 toc52i
FREQUENCY (MHz)
HARMONIC DISTORTION (dBc)
1751501251007550 200
IMD2, VOUT = 2VP-P
IMD2, VOUT = 1VP-P
FREQUENCY SPACING = 100kHz
IMD3, VOUT = 1VP-P
IMD3, VOUT = 2VP-P
-85
-80
-75
-70
-65
-60
-55
-50
-90
MAX9626/MAX9627/MAX9628
Low-Noise, Low-Distortion,
1.35GHz Fully Differential Amplifiers
13
Typical Operating Characteristics (continued)
(VCC = +3.3V, VEE = 0V, VIN- = VIN+ = 0V, SHDN = VCC, VICM = 0V, VVOCM = VCC/2, RL = 500ω, single ended. Plot applies to all
versions, unless noted otherwise.)versions, unless noted otherwise.)
LARGE-SIGNAL TRANSIENT RESPONSE
(MAX9627, VIN = 0 TO 500mV STEP,
VOCM = 1.65V)
MAX9626 toc57
200mV/div
400mV/div
2ns/div
INP
OUT_DIFF
LARGE-SIGNAL TRANSIENT RESPONSE
(MAX9628, VIN = 0 TO 250mV STEP,
VOCM = 1.65V)
MAX9626 toc58
200mV/div
400mV/div
2ns/div
INP
OUT_DIFF
SMALL-SIGNAL TRANSIENT RESPONSE
(MAX9626, VIN = 0 TO 100mV STEP,
VOCM = 1.65V)
MAX9626 toc53
50mV/div
40mV/div
2ns/div
INP
OUT_DIFF
SMALL-SIGNAL TRANSIENT RESPONSE
(MAX9627, VIN = 0 TO 50mV STEP,
VOCM = 1.65V)
MAX9626 toc54
20mV/div
40mV/div
2ns/div
INP
OUT_DIFF
SMALL-SIGNAL TRANSIENT RESPONSE
(MAX9628, VIN = 0 TO 25mV STEP,
VOCM = 1.65V)
MAX9626 toc55
20mV/div
40mV/div
2ns/div
INP
OUT_DIFF
LARGE-SIGNAL TRANSIENT RESPONSE
(MAX9626, VIN = 0 TO 1V STEP,
VOCM = 1.65V)
MAX9626 toc56
1V/div
400mV/div
2ns/div
INP
OUT_DIFF
VOCM TRANSIENT RESPONSE
(MAX9628, VIN = 1.6V TO 1.7V STEP)
MAX9626 toc52q
50mV/div
50mV/div
2ns/div
VOCM
OUT_CM
VOCM TRANSIENT RESPONSE
(MAX9628, VIN = 1.15V TO 2.15V STEP)
MAX9626 toc52r
500mV/div
500mV/div
2ns/div
VOCM
OUT_CM
MAX9626/MAX9627/MAX9628
Low-Noise, Low-Distortion,
1.35GHz Fully Differential Amplifiers
14
Pin Description
Pin Configuration
12
11
10
4
5
VOCM
IN-
6
IN+
SHDN
OUT+
OUT-
1 2
VEE
3
9 8 7
RT+ EP
VCC
VCC
RT-
MAX9626
MAX9627
MAX9628
VEE
TQFN
+
TOP VIEW
PIN NAME FUNCTION
1 IN+ Noninverting Differential Input
2 VOCM Output Common-Mode Voltage Input
3 IN- Inverting Differential Input
4 RT- Termination Resistor Terminal for IN-
5, 6 VCC Positive Supply Voltage
7 OUT+ Noninverting Differential Output
8SHDN Active-Low Shutdown Mode Input
9 OUT- Inverting Differential Output
10, 11 VEE Negative Supply Voltage
12 RT+ Termination Resistor Terminal for IN+
— EP Exposed Pad. Connected to VEE.
MAX9626/MAX9627/MAX9628
Low-Noise, Low-Distortion,
1.35GHz Fully Differential Amplifiers
15
Detailed Description
The MAX9626/MAX9627/MAX9628 family employs
voltage feedback to implement a differential-in to
differential-out amplifier. On-chip feedback resistors set
the gain of the amplifier. The use of on-chip resistors
not only saves cost and space, but also maximizes the
overall amplifier’s performance.
There are two feedback loops within the amplifier
circuit. The differential feedback loop employs the on-
chip resistors to set the differential gain. The signal is
applied differentially at the inputs and the output signal is
obtained differentially at the outputs. The common-mode
feedback loop controls the common-mode voltage at the
outputs. Both inverting and noninverting outputs exhibit
a common-mode voltage equal to the voltage applied
at VOCM input, without affecting the differential output
signal. The outputs are perfectly balanced having
signals of equal amplitude and 180N apart in-phase.
Amplifier input impedance is determined by internal
gain resistors. Therefore, source impedance does affect
the gain of the amplifier. Input termination resistors
are required to achieve source impedance match. If
preferred, the customer has the choice of using the
on-chip termination resistors. If they are used, then
the amplifier’s input impedance is 50I for single-
ended input configuration. The amplifier’s differential gain
accuracy is directly affected by the source impedance
value.
The ICs feature a proprietary circuit design. The use
of predistortion and dynamic distortion cancellation
greatly improves large-signal AC-performance at high
frequency.
Fixed Gain Options for
Best AC Performance
The ICs have internal gain resistors to achieve
excellent bandwidth and distortion performance. Because
the virtual ground nodes among the gain resistors and
the inputs of the amplifier are internal to the device, the
parasitic capacitors of such nodes are kept to the
minimum. This enhances the AC performance of the
device.
The ICs have three gain options with resistor values as
per Table 1, while keeping the bandwidth constant.
The differential gain is given by the equation: G = RF/RG
Internal Terminations
Use the internal RT resistors in applications where the
source impedance RS is 50I and the input impedance
of the amplifier has to match with it. For a perfectly
balanced circuit driven by a differential source
impedance, the input impedance of the amplifier is given
by the simple equation RIN = 2 x RG. For single-ended
input applications, where the source impedance of 50I
connects to either input, such as in the Typical Operating
Circuit, the input impedance of the amplifier is given by
the equation:
G
IN F
G F
R
RR
12 x (R R )
=
−
+
To match the input impedance RS, the following condi-
tion must be met: RIN||RT = RS
Therefore:
( )
S
T
SF G
G
G F
R
RR
0.5 x R 2 x R
R
1R R
=
+
−
+
From this equation it can be inferred that RT is about 64I
for all the cases of Table 1.
Table 1. Amplifier’s Gain Setting and
Internal Resistor Values
GAIN (V/V) RG (I) RF (I)
3dB
BANDWIDTH
(GHz)
1 200 200 1
2 150 300 1.35
4 125 500 1.15
MAX9626/MAX9627/MAX9628
Low-Noise, Low-Distortion,
1.35GHz Fully Differential Amplifiers
16
The gain options with the internal termination resistors RT
are given by the following equation and typical numbers
are summarized in Table 2. Gain values are dependent
on actual source impedance and on-chip RT, RG, and RF
values. The latter are subject to process variation.
( )
F T
T S G S G
R x R
GAIN R R R R x R
=× + +
For single-ended to differential applications where the
source impedance is 50I, such as the case of the
Typical Application Circuit, connect an external 50I
resistor at the other input to maintain symmetry and mini-
mize the gain error.
Applications Information
Input Voltage Range
One of the typical applications is the translation of a
single-ended input signal that is referenced to ground
to a differential output signal that feeds a high-speed
pipeline analog-to-digital converter (ADC) such as the
one in the Typical Application Circuit. Because the input
signal has 0V common mode, the majority of the ampli-
fiers would require a negative supply. The ICs allow the
input signal to be below ground even with single-supply
operation (VEE connected to GND). How far below
ground depends on the gain option. See the Electrical
Characteristics table and Figures 1, 2, and 3 for details.
Use the following equation to determine the input com-
mon-mode range:
AMP OUT_CM
IN_CM
(V V ) (G 1)
V x
(G 1) G
−+
=+
where VIN_CM is the input common-mode voltage. VAMP
is the voltage at the input node of the internal amplifier.
VOUT_CM is the output common-mode voltage. G is the
gain of the device.
Table 2. Typical Gain Values When Using
the Internal Termination Resistors
(RT and RS = 50)
Figure 1. MAX9626 Input Common-Mode Voltage vs. Output
Common-Mode Voltage of the Amplifier
Figure 2. MAX9627 Input Common-Mode Voltage vs. Output
Common-Mode Voltage of the Amplifier
Figure 3. MAX9628 Input Common-Mode Voltage vs. Output
Common-Mode Voltage of the Amplifier
VOUT_CM (V)
VIN_CM (V)
2.2
2.11.9 2.0
1.3 1.4 1.5 1.6 1.7 1.8
1.1 1.2
-2.0
-1.5
-1.0
-0.5
0
0.5
1.0
1.5
2.0
2.5
-2.5
1.0 2.3
VIN_CM HIGH
VIN_CM LOW
GAIN = 1
-1.0
-0.5
0
0.5
1.0
1.5
2.0
-1.5
VOUT_CM (V)
VIN_CM (V)
2.2
2.11.9 2.0
1.3 1.4 1.5 1.6 1.7 1.8
1.1 1.21.0 2.3
VIN_CM HIGH
VIN_CM LOW
GAIN = 2
-1.0
-0.5
0
0.5
1.0
1.5
2.0
VOUT_CM (V)
VIN_CM (V)
2.2
2.11.9 2.0
1.3 1.4 1.5 1.6 1.7 1.8
1.1 1.21.0 2.3
VIN_CM HIGH
VIN_CM LOW
GAIN = 4
RT (I) RG (I) RF (I)GAIN (V/V)
64 200 200 0.48
64 150 300 0.95
64 125 500 1.85
MAX9626/MAX9627/MAX9628
Low-Noise, Low-Distortion,
1.35GHz Fully Differential Amplifiers
17
Input Voltage Noise
The input referred voltage noise specification reported
in the Electrical Characteristics table includes both the
noise contribution of the amplifier and the contribution of
all the internal resistive elements. Because such resistive
elements change depending on the gain selection as
per Table 1, the input voltage noise specification differs
according to the gain options.
Setting the Output Common-Mode Voltage
The ICs feature an input, VOCM, that sets the differential
output common-mode voltage. Its wide range from 1.1V
to VCC - 1.1V makes the amplifier family compatible with
most of the high-speed pipeline differential input ADCs.
While many of these ADCs accept an input common-
mode around half of their supply voltage, some of them
have input common-mode range shifted toward either
ground or the positive supply.
The ICs can comfortably drive both 3.3V and 5V ADCs
that have common-mode range around half supply.
When powered with VCC of 5V or higher, the ICs can
also drive some of the popular ADCs with common-mode
range higher than 3V.
The high bandwidth of VOCM makes the amplifier's out-
put recover quickly from load transient conditions. Such
conditions may occur when switching the ADC input
capacitor during the track-and-hold phases. The input
capacitor switching may cause a voltage glitch at the
input of the ADC, which incurs a load transient condition
for the driving amplifier.
Power-Supply Decoupling
and Layout Techniques
The ICs are high-speed devices, sensitive to the PCB
environment in which they operate. Realizing their superior
performance requires attention to the details of high-
speed PCB design.
The first requirement is a solid continuous ground plane
on the second PCB layer, preferably with no signal or
power traces. PCB layers 3 and 4 can be power-supply
routing or signal routing, but preferably they should not
be routed together.
For power-supply decoupling with single-supply opera-
tion, place a large capacitor by the VCC supply node
and then place a smaller capacitor as close as possible
to the VCC pin. For 1GHz decoupling, 22pF to 100pF are
good values to use. When used with split supplies, place
relevant capacitors on the VEE supply as well.
Ground vias are critical to provide a ground return path
for high frequency signals and should be placed near
the decoupling capacitors. Place ground vias on the
exposed pad as well, along the edges and near the pins
to shorten the return path and maximize isolation. Vias
should also be placed next to the input and output signal
traces to maximize isolation. Finally, make sure that the
layer 2 ground plane is not severely broken up by signal
vias or power supply vias.
Signal routing should be short and direct to avoid
parasitic effects. For very high-frequency designs, avoid
using right angle connectors since they may introduce
a capacitive discontinuity and ultimately limit the fre-
quency response.
Recommended Pipeline ADCs
The MAX9626/MAX9627/MAX9628 family offers excel-
lent bandwidth and distortion performance that is in line
with the majority of high-speed and 16-bit resolution
pipeline ADCs in the market. In particular, it is recom-
mended in combination with the MAX19586/MAX19588
family of 16-bit and 100Msps pipeline ADCs.
For lower resolution applications, the MAX9626/
MAX9627/MAX9628 family can also drive 10- to 14-bit
ADCs such as the MAX12553/MAX12554/MAX12555,
MAX12527/MAX12528/MAX12529 and MAX19505/
MAX19506/MAX19507 families.
MAX9626/MAX9627/MAX9628
Low-Noise, Low-Distortion,
1.35GHz Fully Differential Amplifiers
18
Package Information
For the latest package outline information and land patterns (footprints), go to www.maxim-ic.com/packages. Note that a “+”, “#”,
or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
PACKAGE TYPE PACKAGE CODE OUTLINE NO. LAND PATTERN NO.
12 TQFN T1233+1 21-0136 90-0066
MAX9626/MAX9627/MAX9628
Low-Noise, Low-Distortion,
1.35GHz Fully Differential Amplifiers
19
Package Information (continued)
For the latest package outline information and land patterns (footprints), go to www.maxim-ic.com/packages. Note that a “+”, “#”,
or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied.
Maxim reserves the right to change the circuitry and specifications without notice at any time.
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© 2011 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.
MAX9626/MAX9627/MAX9628
Low-Noise, Low-Distortion,
1.35GHz Fully Differential Amplifiers
Revision History
REVISION
NUMBER
REVISION
DATE DESCRIPTION PAGES
CHANGED
0 9/10 Initial release —
1 2/11 Updated shutdown current value, updated Electrical Characteristics table, updated.
Internal Terminations section, and added new typical operating characteristics 1–7, 14
