General Description
The MAX5450–MAX5455 are a family of dual digital
potentiometers that perform the same function as a
mechanical potentiometer or variable resistor. The
MAX5451/MAX5453/MAX5455 have two 3-terminal
potentiometers and the MAX5450/MAX5452/MAX5454
have two 2-terminal variable resistors. The MAX5450–
MAX5455 operate from a +2.7V to +5.5V single-supply
voltage and use an ultra-low supply current of 0.1µA.
These devices consist of two fixed resistors each
with 256 digitally-controlled wiper contacts. The conve-
nient power-on reset (POR) sets the wiper to midscale
position at power-up and the easy-to-use up/down
interface allows glitchless switching between
resistor taps. Six inputs control the 14-pin MAX5451/
MAX5453/MAX5455 potentiometers. Four inputs control
the 10-pin MAX5450/MAX5452/MAX5454 variable resis-
tors.
The MAX5450–MAX5455 are ideal for applications
requiring digitally-controlled resistors. Three resistance
values are available: 10kΩ, 50kΩ, and 100kΩ. An end-
to-end resistor temperature coefficient of 35ppm/°C
and a ratiometric temperature coefficient of 5ppm/°C
make the MAX5450–MAX5455 excellent choices for
adjustable gain circuit requiring low-temperature drift
The MAX5450–MAX5455 are available in 10-pin µMAX®
and 14-pin TSSOP packages. Each device is guaran-
teed over the extended–industrial temperature range
(-40°C to +85°C).
Applications
Mechanical Potentiometer Replacement
Low-Drift Programmable-Gain Amplifier (PGA)
Volume Control
LCD Screen Adjustment
Adjustable Voltage References
Adjustable Linear Regulators
Programmable Filters, Delays, Time Constants
Impedance Matching
Features
♦Small-Footprint Packages
10-Pin µMAX (MAX5450/MAX5452/MAX5454)
14-Pin TSSOP (MAX5451/MAX5453/MAX5455)
♦256-Tap Positions
♦Independent Up/Down Potentiometer Controls
(MAX5451/MAX5453/MAX5455)
♦Ultra-Low 0.1µA Supply Current
♦+2.7V to +5.5V Single-Supply Operation
♦Low 35ppm/°C End-to-End Temperature
Coefficient
♦Power-On Reset Sets Wiper to Midscale
(Position 127)
♦Glitchless Switching Between the Resistor Taps
♦10kΩ, 50kΩ, 100kΩResistance Values
MAX5450–MAX5455
Dual, 256-Tap, Up/Down Interface,
Digital Potentiometers
________________________________________________________________ Maxim Integrated Products 1
1
2
3
4
5
10
9
8
7
6
INC
GND
W2W1
VDD
MAX5450
MAX5452
MAX5454
µMAX
TOP VIEW
L2L1
14
13
12
11
10
9
8
1
2
3
4
5
6
7
GNDVDD MAX5451
MAX5453
MAX5455 W2
H2
L2L1
H1
W1
TSSOP
U/D
CS1 CS2
INC1
INC2
U/D1
U/D2
CS2
CS1
Pin Configurations
19-1997; Rev 2; 2/06
Ordering Information
PART PIN-PACKAGE R (kΩ)PKG
CODE
MAX5450EUB 10 µMAX 10 U10C-4
MAX5451EUD 14 TSSOP 10 U14-1
MAX5452EUB 10 µMAX 50 U10C-4
MAX5453EUD 14 TSSOP 50 U14-1
MAX5454EUB 10 µMAX 100 U10C-4
MAX5455EUD 14 TSSOP 100 U14-1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Note: All devices specified over the -40°C to +85°C operating
range.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
MAX5450–MAX5455
Dual, 256-Tap, Up/Down Interface,
Digital Potentiometers
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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.
VDD to GND..............................................................-0.3V to +6V
CS_, INC_, and U/D_ to GND...................................-0.3V to +6V
H_, L_, W_ to GND ......................................-0.3V to (VDD +0.3V)
Maximum Continuous Current into H_, L_, and W_............±1mA
Continuous Power Dissipation (TA= +70°C)
10-Pin µMAX (derate 6.94mW/°C above +70°C) ..........555mW
14-Pin TSSOP (derate 9.1mW/°C above +70°C) ..........727mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
ELECTRICAL CHARACTERISTICS
(VDD = +2.7V to +5.5V, VH= VDD, VL= 0; TA= TMIN to TMAX, unless otherwise noted. Typical values are at VDD = +5V, TA= +25°C,
unless otherwise noted.)
PARAMETER SYM B O L CONDITIONS MIN TYP MAX UNITS
DC PERFORMANCE (Voltage-Divider Mode, MAX5451/MAX5453/MAX5455 Only)
Resolution N 8 Bits
VDD = +5V ±1
Integral Nonlinearity
(Notes 1 and 2) INL VDD = +3V ±1 LSB
VDD = +5V ±1
Differential Nonlinearity
(Notes 1 and 2) DNL VDD = +3V ±1 LSB
End-to-End Resistor Tempco TCR35 ppm/°C
Ratiometric Resistor Tempco 5 ppm/°C
MAX5451 -8
MAX5453 -1.6Full-Scale Error
MAX5455 -0.8
LSB
MAX5451 +8
MAX5453 +1.6
Zero-Scale Error
MAX5455 +0.8
LSB
DC PERFORMANCE (Variable Resistor Mode)
Resolution N 8 Bits
MAX5450, MAX5451 ±3
VDD = +5V MAX5452–MAX5455 ±1
MAX5450, MAX5451 ±4.5
Integral Nonlinearity
(Notes 1 and 3) INL
VDD = +3V MAX5452–MAX5455 ±2
LSB
VDD = +5V ±1
Differential Nonlinearity
(Notes 1 and 3) DNL VDD = +3V ±1 LSB
DC PERFORMANCE (Resistor Characteristics)
VDD = +5V, MAX5451/MAX5453/MAX5455 225
Wiper Resistance (Note 4) RWVDD = +3V, MAX5451/MAX5453/MAX5455 550 Ω
Wiper Capacitance CW10 pF
MAX5450, MAX5451 6.5 10 12.5
MAX5452, MAX5453 32 50 62.5End-To-End Resistance RHL
MAX5454, MAX5455 60 100 125
kΩ
MAX5450–MAX5455
Dual, 256-Tap, Up/Down Interface,
Digital Potentiometers
_______________________________________________________________________________________ 3
Note 1: Linearity is defined in terms of the H_ to L_ code-dependent resistance.
Note 2: The DNL and INL are measured with the potentiometer configured as a voltage divider with H_ = VDD and L_ = GND. The
wiper terminal is unloaded and measured with an ideal voltmeter.
Note 3: The DNL and INL are measured with the potentiometer configured as a variable resistor. For the 3-terminal potentiometers
(MAX5451/MAX5453/MAX5455), H_ is unconnected and L_ = GND. For the 2-terminal potentiometers
(MAX5450/MAX5452/MAX5454), L_ = GND. At VDD = +5V, the wiper terminal is driven with a source current of 400µA for the
10kΩconfiguration, 80µA for the 50kΩconfiguration, and 40µA for the 100kΩconfiguration. At VDD = +3V,
200µA/40µA/20µA for 10kΩ/50kΩ/100kΩconfiguration, respectively.
Note 4: The wiper resistance is the worst value measured by injecting the currents given in Note 3 into W_ with L_ = GND. RW_ =
(VW_ - VH_) / IW_.
Note 5: Device draws higher supply current when digital inputs are driven with voltages between (VDD - 0.5V) and (GND + 0.5V).
(See Supply Current vs. Digital Input Voltage in the Typical Operating Characteristics.)
Note 6: Wiper-Settling Time is the worst case 0% to 50% rise-time measured between consecutive wiper positions. H_ = VDD, L_ =
GND, and the wiper terminal is unloaded and measured with a 10pF oscilloscope probe (see Tap-To-Tap Switching
Transient in the Typical Operating Characteristics).
Note 7: Digital timing is guaranteed by design.
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +2.7V to +5.5V, VH= VDD, VL= 0; TA= TMIN to TMAX, unless otherwise noted. Typical values are at VDD = +5V, TA= +25°C,
unless otherwise noted.)
PARAMETER SYM B O L CONDITIONS MIN TYP MAX UNITS
DIGITAL INPUTS (Note 5)
Input High Voltage VIH 0.7 x VDD V
Input Low Voltage VIL 0.3 x VDD V
Input Leakage Current ±1.0 µA
Input Capacitance 5pF
TIMING CHARACTERISTICS (Analog)
MAX5451 0.5
MAX5453 1.2
Wiper-Settling Time
(Note 6) tIW
MAX5455 1.8
µs
TIMING CHARACTERISTICS (Digital, Note 7, Figure 1)
Maximum INC Frequency fMAX 7 MHz
CS to INC Setup Time tCI 25 ns
CS to INC Hold Time tIC 0ns
INC Low Period tIL 25 ns
INC High Period tIH 25 ns
U/D to INC Setup tDI 50 ns
U/D to INC Hold tID 0ns
POWER SUPPLIES
Supply Voltage VDD 2.7 5.5 V
VDD = +5V 0.7 2
Supply Current IDD
CS = INC = U/D = VDD
or GND V
D D
= + 2.7V 0.1 µA
MAX5450–MAX5455
Dual, 256-Tap, Up/Down Interface,
Digital Potentiometers
4 _______________________________________________________________________________________
Typical Operating Characteristics
(VDD = +5V, TA = +25°C, unless otherwise noted.)
160
200
180
240
220
280
260
300
02.01.0 3.0 4.00.5 2.51.5 3.5 4.5 5.0
WIPER VOLTAGE (V)
WIPER RESISTANCE
vs. WIPER VOLTAGE (10kΩ)
MAX5450/5 toc01
WIPER RESISTANCE (Ω)
VDD = +3V
VDD = +5V
160
200
180
260
240
220
280
300
360
340
320
380
0 1.0 1.50.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
WIPER RESISTANCE
vs. WIPER VOLTAGE (50kΩ)
MAX5450/5 toc02
WIPER VOLTAGE (V)
WIPER RESISTANCE (Ω)
VDD = +3V
VDD = +5V
160
200
180
260
240
220
280
300
360
340
320
380
0 1.0 1.50.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
WIPER RESISTANCE
vs. WIPER VOLTAGE (100kΩ)
MAX5450/5 toc03
WIPER VOLTAGE (V)
WIPER RESISTANCE (Ω)
VDD = +3V
VDD = +5V
400
0
2
1
4
3
6
5
7
9
8
10
0649632 128 160 192 224 256
WIPER RESISTANCE
vs. WIPER POSITION (10kΩ)
MAX5450/5 toc04
WIPER POSITION
W-TO-L RESISTANCE (kΩ)
0
10
5
20
15
30
25
35
45
40
50
0649632 128 160 192 224 256
WIPER RESISTANCE
vs. WIPER POSITION (50kΩ)
MAX5450/5 toc05
WIPER POSITION
W-TO-L RESISTANCE (kΩ)
0
20
10
40
30
60
50
70
90
80
100
0649632 128 160 192 224 256
WIPER RESISTANCE
vs. WIPER POSITION (100kΩ)
MAX5450/5 toc06
WIPER POSITION
W-TO-L RESISTANCE (kΩ)
-0.05
0.00
0.10
0.05
0.15
0.20
0649632 128 160 192 224 256
VARIABLE RESISTOR DNL
vs. WIPER POSITION (10kΩ)
MAX5450/5 toc07
WIPER POSITION
DNL (LSB)
-0.30
-0.10
-0.20
0.10
0.00
0.20
0.30
0.40
0.50
0649632 128 160 192 224 256
VARIABLE RESISTOR INL
vs. WIPER POSITION (MAX5451)
MAX5450/5 toc08
WIPER POSITION
INL (LSB)
-0.03
-0.01
-0.02
0.02
0.01
0.00
0.05
0.04
0.03
0.06
0649632 128 160 192 224 256
VARIABLE RESISTOR DNL
vs. WIPER POSITION (50kΩ)
MAX5450/5 toc09
WIPER POSITION
DNL (LSB)
MAX5450–MAX5455
Dual, 256-Tap, Up/Down Interface,
Digital Potentiometers
_______________________________________________________________________________________ 5
-0.16
-0.12
-0.14
-0.08
-0.10
-0.04
-0.06
-0.02
0.02
0.00
0.04
128 160
0649632 192 224 256
VARIABLE RESISTOR INL
vs. WIPER POSITION (MAX5453)
MAX5450/5 toc10
WIPER POSITION
INL (LSB)
0.04
0.03
0.02
0.01
0.00
0.06
0.05
0.08
0.07
0.10
0.11
0.12
MAX5450/5 toc11
WIPER POSITION
128 1600649632 192 224 256
VARIABLE RESISTOR DNL
vs. WIPER POSITION (100kΩ)
DNL (LSB)
-0.01
-0.02
0.09
MAX5450/5 toc12
WIPER POSITION
128 1600649632 192 224 256
VARIABLE RESISTOR INL
vs. WIPER POSITION (MAX5455)
INL (LSB)
-0.20
-0.10
-0.15
0.00
-0.05
0.10
0.05
0.15
MAX5450/5 toc13
WIPER POSITION
128 1600649632 192 224 256
VOLTAGE-DIVIDER DNL
vs. WIPER POSITION (10kΩ)
DNL (LSB)
-0.02
0.01
0.00
-0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
MAX5450/5 toc14
WIPER POSITION
128 1600649632 192 224 256
VOLTAGE-DIVIDER INL
vs. WIPER POSITION (10kΩ)
INL (LSB)
-0.20
-0.10
-0.15
0.00
-0.05
0.10
0.05
0.15
MAX5450/5 toc15
WIPER POSITION
128 1600649632 192 224 256
VOLTAGE-DIVIDER DNL
vs. WIPER POSITION (50kΩ)
DNL (LSB)
-0.02
0.01
0.00
-0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
MAX5450/5 toc16
WIPER POSITION
128 1600649632 192 224 256
VOLTAGE-DIVIDER INL
vs. WIPER POSITION (50kΩ)
INL (LSB)
-0.20
-0.10
-0.15
0.00
-0.05
0.10
0.05
0.15
MAX5450/5 toc17
WIPER POSITION
128 1600649632 192 224 256
VOLTAGE-DIVIDER DNL
vs. WIPER POSITION (100kΩ)
DNL (LSB)
-0.02
0.01
0.00
-0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
MAX5450/5 toc18
WIPER POSITION
128 1600649632 192 224 256
VOLTAGE-DIVIDER INL
vs. WIPER POSITION (100kΩ)
INL (LSB)
-0.20
-0.10
-0.15
0.00
-0.05
0.10
0.05
0.15
Typical Operating Characteristics (continued)
(VDD = +5V, TA = +25°C, unless otherwise noted.)
MAX5450–MAX5455
Dual, 256-Tap, Up/Down Interface,
Digital Potentiometers
6 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(VDD = +5V, TA = +25°C, unless otherwise noted.)
1
0.0001
01 45
SUPPLY CURRENT
vs. DIGITAL INPUT VOLTAGE
0.001
0.01
0.1
MAX5450/5 toc20
DIGITAL INPUT VOLTAGE (V)
IDD (mA)
2 3
VDD = 5V
VDD = 3V
0
0.2
0.6
0.4
0.8
1.0
-40-30-20-100 102030 405060 7080
SUPPLY CURRENT vs. TEMPERATURE
MAX5450/5 toc21
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
VDD = +3V
VDD = +5V
0
0.4
0.2
0.8
0.6
1.2
1.0
1.4
0231 456
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX5450/5 toc19
VDD (V)
IDD (µA)
DIGITAL INPUTS + VDD
-0.25
-0.15
-0.20
0
-0.05
-0.10
0.15
0.10
0.05
0.20
-40 0 20-20 406080
END-TO-END RESISTANCE % CHANGE
vs. TEMPERATURE
MAX5450/5 toc22
TEMPERATURE (°C)
END-TO-END RESISTANCE % CHANGE
100kΩ
100kΩ
10kΩ
50kΩ
10kΩ
50kΩ
1µs/div
TAP-TO-TAP SWITCHING TRANSIENT
W
10mV/div
MAX5450/5 toc23
INC_
5V/div
MAX5455
MAX5451
MAX5453
MAX5450–MAX5455
Dual, 256-Tap, Up/Down Interface,
Digital Potentiometers
_______________________________________________________________________________________ 7
PIN
MAX5451
MAX5453
MAX5455
MAX5450
MAX5452
MAX5454
NAME FUNCTION
11CS1 Chip-Select Input of Resistor 1. Drive low to change wiper position W1
through INC and U/D.
—2U/D
Up/Down Control Input. With U/D low, a high-to-low INC transition
decrements wiper position. With U/D high, a high-to-low INC transition
increments wiper position.
2—U/D1
Up/Down Control Input of Resistor 1. With U/D1 low, a high-to-low INC1
transition decrements wiper position W1. With U/D1 high, a high-to-low
INC1 transition increments wiper position W1.
3—U/D2
Up/Down Control Input of Resistor 2. With U/D2 low, a high-to-low INC2
transition decrements wiper position W2. With U/D2 high, a high-to-low
INC2 transition increments wiper position W2.
43V
DD Power Supply
5 4 W1 Wiper Terminal of Resistor 1
6 — H1 High Terminal of Resistor 1
7 5 L1 Low Terminal of Resistor 1
8 6 L2 Low Terminal of Resistor 2
9 — H2 High Terminal of Resistor 2
10 7 W2 Wiper Terminal of Resistor 2
11 8 GND Ground
—9INC
Wiper Increment Control Input. With CS1 low, a high-to-low transition
increments (U/D high) or decrements (U/D low) wiper position W1. This
applies similarly for CS2 and W2.
12 — INC2 Wiper Increment Control Input. With CS2 low, a high-to-low transition
increments (U/D2 high) or decrements (U/D2 low) wiper position W2.
13 — INC1 Wiper Increment Control Input. With CS1 low, a high-to-low transition
increments (U/D1 high) or decrements (U/D1 low) wiper position W1.
14 10 CS2 Chip-Select Input of Resistor 2. Drive low to change wiper position W2
through INC and U/D.
Pin Description
MAX5450–MAX5455
Detailed Description
The MAX5450–MAX5455 contain two independent
resistor arrays each with 255-resistive elements. 256-
tap points are accessible to the wiper along the resistor
arrays between H and L (Figure 2). Power-on reset cir-
cuitry sets the wiper to midscale (position 127) at
power-up.
Logic inputs CS, U/D, and INC determine the wiper
position of the MAX5450–MAX5455. With CS low and
U/Dhigh, a high-to-low (falling edge) transition on INC,
increments the internal counter, which increases the
resistance between W and L. When both CS and U/D
are low, a high-to-low INC transition decrements the
internal counter, decreasing the resistance between W
and L (Figure 1). The wiper performs a make-before-
break transition ensuring that there is never an open
circuit during a transition from one resistor tap to anoth-
er. When the wiper is at either end (max/min) of the
resistor array, additional transitions in the direction of
the endpoint will not change the counter value (the
counter will not wrap around).
The MAX5450/MAX5452/MAX5454 are similar to the
MAX5451/MAX5453/MAX5455 except for internal con-
nections. The MAX5450/MAX5452/MAX5454 internally
connect INC1 to INC2, U/D1 to U/D2, W1 to H1, and
W2 to H2 (Figures 3 and 4). The internal connections
configure the MAX5450/MAX5452/MAX5454 to be vari-
able resistors.
Applications Information
The MAX5450–MAX5455 are ideal for adjustable volt-
age or adjustable gain circuits where accurate
adjustable resistances are required.
Adjustable Current to Voltage Converter
Figure 5 shows the MAX5450/MAX5452/MAX5454 with
a MAX4250 low-noise op amp to fine-tune a current to
voltage converter. The physical sizes of both devices
minimize circuit space.
Adjustable Gain Amplifier
Figures 6a and 6b shows the MAX5450–MAX5455 digi-
tally adjusting the gain of the MAX4493 general-pur-
pose, dual supply op amp. Figure 6a shows the
MAX5450/MAX5452/MAX5454 variable resistor in
series with a resistor to ground to form the adjustable
gain control. Figure 6b shows the MAX5451/MAX5453/
MAX5455 as a 3-terminal potentiometer. In these appli-
cations the low 5ppm/°C ratiometric tempco allows for
a very stable adjustable gain over temperature.
Adjustable Linear Regulator
In Figure 7, the MAX5450/MAX5452/MAX5454 is shown
digitally adjusting the output voltage of the MAX8866
dual linear regulator. In this circuit, the MAX5450/
MAX5452/MAX5454 is connected in series with a resis-
tor to ground to form the adjustable feedback stage.
The 8-bit MAX5450/MAX5452/MAX5454 allows precise
tuning of the output voltage.
Dual, 256-Tap, Up/Down Interface,
Digital Potentiometers
8 _______________________________________________________________________________________
Figure 1. Digital Interface and Timing diagram
tID
tIW
tDI
tCI tIL
tIH
tIC
CS_
W_
U/D_
INC_
MAX5450–MAX5455
Dual, 256-Tap, Up/Down Interface,
Digital Potentiometers
_______________________________________________________________________________________ 9
Figure 3. MAX5450/MAX5452/MAX5454 Simplified Functional
Diagram
POSITION
DECODER
GND
W1
L1
MAX5450
MAX5452
MAX5454 W2
L2
VDD
CS1
CS2
UP/DOWN
COUNTER
UP/DOWN
COUNTER
POSITION
DECODER
POWER-ON
RESET
U/D
INC
Figure 4. MAX5451/MAX5453/MAX5455 Simplified Functional
Diagram
POSITION
DECODER
GND
H1
L1
MAX5451
MAX5453
MAX5455 H2
W1
W2
L2
VDD
CS1
U/D1
U/D2
INC1
INC2
CS2
UP/DOWN
COUNTER
UP/DOWN
COUNTER
POSITION
DECODER
POWER-ON
RESET
Figure 2. Simplified Digital Potentiometer Resistor Array
W
H
L
R255
S256
S255R254
R2
R1
S254
S3
S2
S1
Figure 5. Adjustable Current to Voltage Converter
MAX4250
MAX5450
MAX5452
MAX5454
IS
R3
VDD
R2
VOUT
W
L
R1
( )
R2
R1
VOUT
IS
1 += R3+ R2
MAX5450–MAX5455
Dual, 256-Tap, Up/Down Interface,
Digital Potentiometers
10 ______________________________________________________________________________________
Figure 7. Adjustable Dual Linear Regulator
MAX5450
MAX5452
MAX5454
W2
L2
W1
L1
OUT1
OUT2
SET1
SET2
GND
IN
SHDN1
SHDN2
VOUT1
VOUT2
V+
MAX8866
Figure 6b. Potentiometer Adjustable-Gain Amplifier
MAX5451
MAX5453
MAX5455
W
MAX4493
VCC
VIN
VEE
VOUT
LH
Truth Table
CS U/DINC W
HXXO
LL↑O
LH↑O
LL↓−
LH↓+
X = Don’t care O = Previous State
↓= High-to-Low Transition – = Decrement
↑= Low-to-High Transition + = Increment
Figure 6a. Variable Resistor Adjustable-Gain Amplifier
MAX5450
MAX5452
MAX5454
W
MAX4493
VCC
VIN
VEE
L
VOUT
Chip Information
TRANSISTOR COUNT: 9680
PROCESS: CMOS
MAX5450–MAX5455
Dual, 256-Tap, Up/Down Interface,
Digital Potentiometers
______________________________________________________________________________________ 11
Package Information
10LUMAX.EPS
PACKAGE OUTLINE, 10L uMAX/uSOP
1
1
21-0061 REV.DOCUMENT CONTROL NO.APPROVAL
PROPRIETARY INFORMATION
TITLE:
TOP VIEW
FRONT VIEW
1
0.498 REF
0.0196 REF
S6°
SIDE VIEW
α
BOTTOM VIEW
0° 0° 6°
0.037 REF
0.0078
MAX
0.006
0.043
0.118
0.120
0.199
0.0275
0.118
0.0106
0.120
0.0197 BSC
INCHES
1
10
L1
0.0035
0.007
e
c
b
0.187
0.0157
0.114
H
L
E2
DIM
0.116
0.114
0.116
0.002
D2
E1
A1
D1
MIN
-A
0.940 REF
0.500 BSC
0.090
0.177
4.75
2.89
0.40
0.200
0.270
5.05
0.70
3.00
MILLIMETERS
0.05
2.89
2.95
2.95
-
MIN
3.00
3.05
0.15
3.05
MAX
1.10
10
0.6±0.1
0.6±0.1
Ø0.50±0.1
H
4X S
e
D2
D1
b
A2 A
E2
E1 L
L1
c
α
GAGE PLANE
A2 0.030 0.037 0.75 0.95
A1
MAX5450–MAX5455
Dual, 256-Tap, Up/Down Interface,
Digital Potentiometers
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.
12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2006 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products, Inc.
TSSOP4.40mm.EPS
PACKAGE OUTLINE, TSSOP 4.40mm BODY
21-0066
1
1
G
Package Information (continued)
