General Description
The MAX6138 is a precision, two-terminal shunt mode,
bandgap voltage reference available in fixed reverse
breakdown voltages of 1.2205V, 2.048V, 2.5V, 3.0V,
3.3V, 4.096V, and 5.0V. Ideal for space-critical applica-
tions, the MAX6138 is offered in the subminiature 3-pin
SC70 surface-mount package (1.8mm X 1.8mm), 50%
smaller than comparable devices in SOT23 surface-
mount packages.
Laser-trimmed resistors ensure precise initial accuracy.
With a 25ppm/°C temperature coefficient, the device is
offered in three grades of initial accuracy ranging from
0.1% to 0.5%. The MAX6138 has a 60µA to 15mA shunt-
current capability with low-dynamic impedance, ensuring
stable reverse breakdown voltage accuracy over a wide
range of operating temperatures and currents.
The MAX6138 does not require an external stabilizing
capacitor while ensuring stability with capacitive loads.
The MAX6138 is a higher precision device in a smaller
package than the LM4040/LM4050.
Applications
Portable, Battery-Powered Equipment
Notebook Computers
Cell Phones
Industrial Process Control
Features
♦Ultra-Small 3-Pin SC70 Package
♦0.1% (max) Initial Accuracy
♦25ppm/°C (max) Temperature Coefficient
Guaranteed Over -40°C to +85°C Temperature
Range
♦Wide Operating Current Range: 60µA to 15mA
♦Low 28µVRMS Output Noise (10Hz to 10kHz)
♦1.2205V, 2.048V, 2.5V, 3.0V, 3.3V, 4.096V, and 5.0V
Fixed Reverse Breakdown Voltages
♦No Output Capacitors Required
♦Stable with Capacitive Loads
MAX6138
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
________________________________________________________________ Maxim Integrated Products 1
MAX6138
ILOAD
ISHUNT
RS
VS
VR
ISHUNT + ILOAD
-
1
3N.C.*
+
MAX6138
SC70
TOP VIEW
2
*PIN 3 MUST BE LEFT FLOATING
OR CONNECTED TO PIN 2.
PART TEMP
RANGE
PIN-
PACKAGE
OUTPUT
VOLTAGE
(V)
MAX6138_EXR12-T -40°C to +85°C 3 SC70-3 1.2205
MAX6138_EXR21-T -40°C to +85°C 3 SC70-3 2.0480
MAX6138_EXR25-T -40°C to +85°C 3 SC70-3 2.5000
MAX6138_EXR30-T -40°C to +85°C 3 SC70-3 3.0000
MAX6138_EXR33-T -40°C to +85°C 3 SC70-3 3.3000
MAX6138_EXR41-T -40°C to +85°C 3 SC70-3 4.0960
MAX6138_EXR50-T -40°C to +85°C 3 SC70-3 5.0000
Pin Configuration
Selector Guide
Typical Operating Circuit
19-2090; Rev 2; 4/04
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.
Ordering Information appears at end of data sheet.
MAX6138
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—MAX6138_12 (1.2205V)
(IR= 100µA, TA= -40°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
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.
Reverse Current (cathode to anode) ..................................20mA
Forward Current (anode to cathode) ..................................10mA
Continuous Power Dissipation (TA
A = +70°C)
3-Pin SC70 (derate 2.17mW/°C above +70°C) ...........174mW
Operating Temperature Range .........................-40°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX6138A (0.1%) 1.2193 1.2205 1.2217
MAX6138B (0.2%) 1.2181 1.2205 1.2229
Reverse Breakdown Voltage
(Note 2) VRTA = +25°C
MAX6138C (0.5%) 1.2144 1.2205 1.2266
V
Minimum Operating Current IRMIN 45 60 µA
Reverse Voltage
Temperature Coefficient
(Notes 2, 3)
TC 4 25 ppm/°C
IRMIN ≤ IR ≤ 1mA 0.3 1.0
Reverse Breakdown Voltage
Change with Operating
Current Change
∆VR/∆IR
1mA ≤ IR ≤ 12mA 2.5 8.0
mV
Reverse Dynamic
Impedance (Note 3) ZRIR = 1mA, f = 120Hz, IAC = 0.1IR0.3 0.8 Ω
Wideband Noise eNIR = 10µA, 10Hz ≤ f ≤ 10kHz 20 µVRMS
Reverse Breakdown Voltage ∆VRt = 1000h 120 ppm
MAX6138
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS—MAX6138_21 (2.048V)
(IR= 100µA, TA= -40°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
ELECTRICAL CHARACTERISTICS—MAX6138_25 (2.5V)
(IR= 100µA, TA= -40°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX6138A (0.1%) 2.0460 2.0480 2.0500
MAX6138B (0.2%) 2.0439 2.0480 2.0521
Reverse Breakdown
Voltage (Note 2) VRTA = +25°C
MAX6138C (0.5%) 2.0378 2.0480 2.0582
V
M i ni m um Op er ati ng C ur r ent IRMIN 45 65 µA
Reverse Voltage
Temperature Coefficient
(Notes 2, 3)
TC 4 25 ppm/°C
IRMIN ≤ IR ≤ 1mA 0.3 1.0
Reverse Breakdown
Voltage Change with
Operating Current Change
∆VR/∆IR
1mA ≤ IR ≤ 15mA 2.5 8.0
mV
Reverse Dynamic
Impedance (Note 3) ZRIR = 1mA, f = 120Hz, IAC = 0.1IR0.3 0.8 Ω
Wideband Noise eN10Hz ≤ f ≤ 10kHz 28 µVRMS
Rever se Br eakd ow n
V ol tag e Long - Ter m S tab i l i ty ∆VRt = 1000h 120 ppm
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX6138A (0.1%) 2.4975 2.5000 2.5025
MAX6138B (0.2%) 2.4950 2.5000 2.5050
Reverse Breakdown Voltage
(Note 2) VRTA = +25°C
MAX6138C (0.2%) 2.4875 2.5000 2.5125
V
Minimum Operating Current IRMIN 45 65 µA
Reverse Voltage Temperature
Coefficient (Notes 2, 3) TC 4 25 ppm/°C
Reverse Breakdown Voltage
Change with Operating Current
Change
∆VR/∆IRIRMIN ≤ IR ≤ 1mA 0.3 1.0 mV
Rever se Br eakd ow n V ol tag e
C hang e w i th Op er ati ng C ur r ent
C hang e
∆VR/∆IR1mA ≤ IR ≤ 15mA 2.5 8.0 mV
Reverse Dynamic Impedance
(Note 3) ZRIR = 1mA, f = 120Hz, IAC = 0.1IR0.3 0.8 Ω
Wideband Noise eN10Hz ≤ f ≤ 10kHz 35 µVRMS
Reverse Breakdown Voltage
Long-Term Stability ∆VRt = 1000h 120 ppm
MAX6138
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
4 _______________________________________________________________________________________
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX6138A (0.1%) 2.9970 3.0000 3.0030
MAX6138B (0.2%) 2.9940 3.0000 3.0060
Reverse Breakdown
Voltage (Note 2) VRTA = +25°C
MAX6138C (0.5%) 2.9850 3.0000 3.0150
V
Minimum Operating
Current IRMIN 45 65 µA
Reverse Voltage
Temperature Coefficient
(Notes 2, 3)
TC 4 25 ppm/°C
IRMIN ≤ IR ≤ 1mA 0.3 1.0
Reverse Breakdown
Voltage Change with
Operating Current Change
∆VR/∆IR
1mA ≤ IR ≤ 15mA 2.5 8.0
mV
Reverse Dynamic
Impedance (Note 3) ZRIR = 1mA, f =120Hz, IAC = 0.1IR0.3 0.8 Ω
Wideband Noise eN10Hz ≤ f ≤ 10kHz 45 µVRMS
Reverse Breakdown
Voltage Long-Term
Stability
∆VRt = 1000h 120 ppm
ELECTRICAL CHARACTERISTICS—MAX6138_30 (3.0V)
(IR= 100µA, TA= -40°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX6138A (0.1%) 3.2967 3.3000 3.3033
MAX6138B (0.2%) 3.2934 3.3000 3.3066
Reverse Breakdown
Voltage (Note 2) VRTA = +25°C
MAX6138C (0.5%) 3.2835 3.3000 3.3165
V
M i ni m um Op er ati ng C ur r ent IRMIN 45 67 µA
Reverse Voltage
Temperature Coefficient
(Notes 2, 3)
TC 4 25 ppm/°C
IRMIN ≤ IR ≤ 1mA 0.3 1.0
Reverse Breakdown
Voltage Change with
Operating Current Change
∆VR/∆IR
1mA ≤ IR ≤ 15mA 8.0
mV
Reverse Dynamic
Impedance (Note 3) ZRIR = 1mA, f =120Hz, IAC = 0.1IR0.3 0.8 Ω
Wideband Noise eN10Hz ≤ f ≤ 10kHz 50 µVRMS
Reverse Breakdown
Voltage Long-Term
Stability
∆VRt = 1000h 120 ppm
ELECTRICAL CHARACTERISTICS—MAX6138_33 (3.3V)
(IR= 100µA, TA= -40°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
MAX6138
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
_______________________________________________________________________________________ 5
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX6138A (0.1%) 4.0919 4.0960 4.1001
MAX6138B (0.2%) 4.0878 4.0960 4.1042
Reverse Breakdown
Voltage (Note 2) VRTA = +25°C
MAX6138C (0.5%) 4.0755 4.0960 4.1165
V
Minimum Operating
Current IRMIN 50 73 µA
Reverse Voltage
Temperature Coefficient
(Notes 2, 3)
TC 4 25 ppm/°C
IRMIN ≤ IR ≤ 1mA 0.5 1.2
Reverse Breakdown
Voltage Change with
Operating Current Change
∆VR/∆IR
1mA ≤ IR ≤ 15mA 3.0 10.0
mV
Reverse Dynamic
Impedance (Note 3) ZRIR = 1mA, f = 120Hz, IAC = 0.1IR0.5 1.0 Ω
Wideband Noise eN10Hz ≤ f ≤ 10kHz 64 µVRMS
Reverse Breakdown
Voltage Long-Term
Stability
∆VRt = 1000h 120 ppm
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX6138A (0.1%) 4.9950 5.0000 5.0050
MAX6138B (0.2%) 4.9900 5.0000 5.0100
Reverse Breakdown
Voltage (Note 2) VRTA = +25°C
MAX6138C (0.5%) 4.9750 5.0000 5.0250
V
M i ni m um Op er ati ng C ur r ent IRMIN 54 80 µA
Reverse Voltage
Temperature Coefficient
(Notes 2, 3)
TC 4 25 ppm/°C
IRMIN ≤ IR ≤ 1mA 0.5 1.4
Reverse Breakdown
Voltage Change with
Operating Current Change
∆VR/∆IR
1mA ≤ IR ≤ 15mA 3.5 12.0
mV
Reverse Dynamic
Impedance (Note 3) ZRIR = 1mA, f = 120Hz, IAC = 0.1IR0.5 1.1 Ω
Wideband Noise eN10Hz ≤ f ≤ 10kHz 80 µVRMS
Rever se Br eakd ow n
V ol tag e Long - Ter m S tab i l i ty ∆VRt = 1000h 120 ppm
ELECTRICAL CHARACTERISTICS—MAX6138_41 (4.096V)
(IR= 100µA, TA= -40°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
ELECTRICAL CHARACTERISTICS—MAX6138_50 (5.0V)
(IR= 100µA, TA= -40°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
Note 1: All devices are 100% production tested at +25°C and are guaranteed by correlation for TA= TMAX to TMIN, as specified.
Note 2: TC is measured by the “box” method, i.e. (VMAX - VMIN) / (TMAX - TMIN)
Note 3: Guaranteed by design.
4.996
4.998
4.997
5.000
4.999
5.002
5.001
5.003
-40 0 20-20 40 60 80
MAX6138_50
TEMPERATURE DRIFT
MAX6138 toc04
TEMPERATURE (°C)
REVERSE VOLTAGE (V)
3 TYPICAL PARTS
0
1.5
1.0
0.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0510 2015
MAX6138_12
REVERSE VOLTAGE vs. ISHUNT
MAX61438 toc05
ISHUNT (mA)
REVERSE VOLTAGE CHANGE (mV)
TA = +85°C
TA = +25°C
TA = -40°C
MAX6138
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
6 _______________________________________________________________________________________
Typical Operating Characteristics
(IR= 100µA, TA= +25°C, unless otherwise noted.)
0
2
1
4
3
5
6
04020 60 80 100
REVERSE CHARACTERISTICS AND
MINIMUM OPERATING CURRENT
MAX6138 toc01
REVERSE CURRENT (µA)
REVERSE VOLTAGE (V)
MAX6138_50
MAX6138_41
MAX6138_30
MAX6138_25
MAX6138_12
MAX6138_20
1.2215
1.2210
1.2205
1.2200
1.2195
-40 20-20 0 40 60 80
MAX6138_12
TEMPERATURE DRIFT
MAX6138 toc02
TEMPERATURE (°C)
REVERSE VOLTAGE (V)
3 TYPICAL PARTS
2.4890
2.4990
2.4895
2.5000
2.4995
2.5010
2.5005
2.5015
-40 0 20-20 40 60 80
MAX6138_25
TEMPERATURE DRIFT
MAX6138 toc03
TEMPERATURE (°C)
REVERSE VOLTAGE (V)
3 TYPICAL PARTS
MAX6138
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
_______________________________________________________________________________________ 7
0
1.5
1.0
0.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0 5 10 2015
MAX6138_25
REVERSE VOLTAGE vs. ISHUNT
MAX61438 toc06
ISHUNT (mA)
REVERSE VOLTAGE CHANGE (mV)
TA = +85°C
TA = +25°C
TA = -40°C
0
1.5
1.0
0.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0 5 10 2015
MAX6138_50
REVERSE VOLTAGE vs. ISHUNT
MAX61438 toc07
ISHUNT (mA)
REVERSE VOLTAGE CHANGE (mV)
TA = +85°C
TA = +25°C
TA = -40°C
4µs/div
MAX6138_12
LOAD-TRANSIENT RESPONSE
ISHUNT = 100µA ±25µA
RL = 48kΩ
+25µA
VR AC-COUPLED
10mV/div
MAX6138 toc08
-25µA
10µs/div
MAX6138_25
LOAD-TRANSIENT RESPONSE
ISHUNT = 100µA
RL = 100kΩ
+25µA
VR AC-COUPLED
10mV/div
MAX6138 toc09
-25µA
Typical Operating Characteristics (continued)
(IR= 100µA, TA= +25°C, unless otherwise noted.)
1kΩ
VB
+
-
ISHUNT + ILOAD
VR
RL
VGEN
Figure 1. Load-Transient Circuit
MAX6138
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
8 _______________________________________________________________________________________
40µs/div
MAX6138_50
LOAD-TRANSIENT RESPONSE
ISHUNT = 100µA
RL = 100kΩ
+25µA
VR AC-COUPLED
20mV/div
MAX6138 toc10
-25µA
10µs/div
MAX6138_12
LOAD-TRANSIENT RESPONSE
ISHUNT = 1mA
RL = 10kΩ
+250µA
VR AC-COUPLED
2.0mV/div
MAX6138 toc11
-250µA
10µs/div
MAX6138_25
LOAD-TRANSIENT RESPONSE
ISHUNT = 1mA
RL = 10kΩ
+250µA
VR AC-COUPLED
10mV/div
MAX6138 toc12
-250µA
40µs/div
MAX6138_50
LOAD-TRANSIENT RESPONSE
+250µA
VR AC-COUPLED
2mV/div
MAX6138 toc13
-250µA
ISHUNT = 1mA
RL = 10kΩ
Typical Operating Characteristics (continued)
(IR= 100µA, TA= +25°C, unless otherwise noted.)
RS
VIN
1Hz RATE
50%
DUTY CYCLE
VR
Figure 2. Startup Characteristics Test Circuit
MAX6138
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
_______________________________________________________________________________________ 9
10µs/div
MAX6138_12
LOAD-TRANSIENT RESPONSE
ISHUNT = 10mA
RL = 1kΩ
+2.5mA
VR AC-COUPLED
100mV/div
MAX6138 toc14
-2.5mA
10µs/div
MAX6138_25
LOAD-TRANSIENT RESPONSE
ISHUNT = 10mA
RL = 1kΩ
+2.5mA
VR AC-COUPLED
5mV/div
MAX6138 toc15
-2.5mA
40µs/div
MAX6138_50
LOAD-TRANSIENT RESPONSE
ISHUNT = 10mA
RL = 1kΩ
+2.5mA
VR AC-COUPLED
100mV/div
MAX6138 toc16
-2.5mA
200ns/div
MAX6138_12
STARTUP CHARACTERISTICS
ISHUNT = 100µA
RS = 30kΩ
0
5V
0
MAX6138 toc17
1.2V
VIN
VOUT
2µs/div
MAX6138_25
STARTUP CHARACTERISTICS
ISHUNT = 100µA
RS = 30kΩ
0
5V
0
MAX6138 toc18
2V
VIN
VOUT
100µs/div
MAX6138_50
STARTUP CHARACTERISTICS
ISHUNT = 100µA
RS = 16kΩ
0
VIN
VOUT
5V
0
MAX6138 toc19
5V
100 10k1k 100k 1M
MAX6138_12
OUTPUT IMPEDANCE
vs. FREQUENCY
MAX6138 toc20
FREQUENCY (Hz)
IMPEDANCE (Ω)
1000
0.1
1
10
100
CL = 0
IR =
CL = 1µF
IR = 1mA
150µA
Typical Operating Characteristics (continued)
(IR= 100µA, TA= +25°C, unless otherwise noted.)
MAX6138
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
10 ______________________________________________________________________________________
Typical Operating Characteristics (continued)
(IR= 100µA, TA= +25°C, unless otherwise noted.)
0.1 101 100 1000
MAX6138_25
OUTPUT IMPEDANCE vs. FREQUENCY
MAX61438 toc21
FREQUENCY (Hz)
IMPEDANCE (Ω)
1000
0.1
1
10
100
IR = 150µA
IR = 1mA
CL = 1µF
CL = 0
0.1 101 100 1000
MAX6138_50
OUTPUT IMPEDANCE vs. FREQUENCY
MAX6138 toc22
FREQUENCY (Hz)
IMPEDANCE (Ω)
100
0.1
1
10 IR = 150µA
IR = 1mA
CL = 0
CL = 1µF
1 100 10k
MAX6138_12
NOISE vs. FREQUENCY
MAX6138 toc23
FREQUENCY (Hz)
NOISE (nV√Hz)
10,000
100
1000
10 1k
1 10010 1k 10k
MAX6138_50
NOISE vs. FREQUENCY
MAX6138 toc25
FREQUENCY (Hz)
10,000
100
1000
NOISE (nV/√Hz)
MAX6138
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
______________________________________________________________________________________ 11
Detailed Description
The MAX6138 shunt reference uses the bandgap prin-
ciple to produce a stable, accurate voltage. The device
behaves similarly to an ideal zener diode; a fixed volt-
age is maintained across its output terminals when
biased with 60µA to 15mA of reverse current. The
MAX6138 behaves similarly to a silicon diode when
biased with forward currents up to 10mA.
Figure 3 shows a typical operating circuit. The
MAX6138 is ideal for providing a stable reference from
a high-voltage power supply.
Applications Information
The MAX6138’s internal pass transistor is used to main-
tain a constant output voltage (VSHUNT) by sinking the
necessary amount of current across a source resistor.
The source resistance (RS) is determined from the load
current (ILOAD) range, supply voltage (VS) variations,
VSHUNT, and desired quiescent current.
Choose the value of RSwhen VSis at a minimum and
ILOAD is at a maximum. Maintain a minimum ISHUNT of
60µA at all times. The RSvalue should be large enough
to keep ISHUNT less than 15mA for proper regulation
when VSis maximum and ILOAD is at a minimum. To
prevent damage to the device, ISHUNT should never
exceed 20mA.
Therefore, the value of RSis bounded by the following
equation:
[VS(MIN) - VR] / [60µA + ILOAD(MAX)] > RS>
[VS(MAX) - VR] / [20mA + ILOAD(MIN)]
Choosing a larger resistance minimizes the total power
dissipation in the circuit by reducing the shunt current
(PD(TOTAL) = VSX ISHUNT). Provide a safety margin to
incorporate the worst-case tolerance of the resistor
used. Ensure that the resistor’s power rating is ade-
quate, using the following general power equation:
PDR= ISHUNT ✕(VS(MAX) - VSHUNT)
Output Capacitance
The MAX6138 does not require an external capacitor
for operational stability and is stable for any output
capacitance.
Temperature Performance
The MAX6138 typically exhibits an output voltage tem-
perature coefficient within ±4ppm/°C. The polarity of
the temperature coefficient may be different from one
device to another; some may have positive coefficients,
and others may have negative coefficients.
Chip Information
TRANSISTOR COUNT: 70
PROCESS: BiCMOS
Pin Description
PIN NAME FUNCTION
1 + Positive Terminal of the Shunt Reference
2 - Negative Terminal of the Shunt Reference
3 N.C. No Connection. Leave this pin unconnected or connect to Pin 2.
MAX6138
ILOAD
ISHUNT
RS
VS
VR
ISHUNT + ILOAD
Figure 3. Typical Operating Circuit
MAX6138
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
12 ______________________________________________________________________________________
Ordering Information
PART
OUTPUT
VOLTAGE
(V)
INITIAL
ACCURACY
(%)
TEMP RANGE PIN-PACKAGE TOP MARK
MAX6138AEXR12-T 1.2205 0.1 -40°C to +85°C 3 SC70-3 AEW
MAX6138BEXR12-T 1.2205 0.2 -40°C to +85°C 3 SC70-3 AEX
MAX6138CEXR12-T 1.2205 0.5 -40°C to +85°C 3 SC70-3 AEY
MAX6138AEXR21-T 2.0480 0.1 -40°C to +85°C 3 SC70-3 AFA
MAX6138BEXR21-T 2.0480 0.2 -40°C to +85°C 3 SC70-3 AFB
MAX6138CEXR21-T 2.0480 0.5 -40°C to +85°C 3 SC70-3 AFC
MAX6138AEXR25-T 2.5000 0.1 -40°C to +85°C 3 SC70-3 AFE
MAX6138BEXR25-T 2.5000 0.2 -40°C to +85°C 3 SC70-3 AFF
MAX6138CEXR25-T 2.5000 0.5 -40°C to +85°C 3 SC70-3 AFG
MAX6138AEXR30-T 3.0000 0.1 -40°C to +85°C 3 SC70-3 AFI
MAX6138BEXR30-T 3.0000 0.2 -40°C to +85°C 3 SC70-3 AFJ
MAX6138CEXR30-T 3.0000 0.5 -40°C to +85°C 3 SC70-3 AFK
MAX6138AEXR33-T 3.3000 0.1 -40°C to +85°C 3 SC70-3 ANG
MAX6138BEXR33-T 3.3000 0.2 -40°C to +85°C 3 SC70-3 ANH
MAX6138CEXR33-T 3.3000 0.5 -40°C to +85°C 3 SC70-3 ANI
MAX6138AEXR41-T 4.0960 0.1 -40°C to +85°C 3 SC70-3 AFM
MAX6138BEXR41-T 4.0960 0.2 -40°C to +85°C 3 SC70-3 AFN
MAX6138CEXR41-T 4.0960 0.5 -40°C to +85°C 3 SC70-3 AFO
MAX6138AEXR50-T 5.0000 0.1 -40°C to +85°C 3 SC70-3 AFQ
MAX6138BEXR50-T 5.0000 0.2 -40°C to +85°C 3 SC70-3 AFR
MAX6138CEXR50-T 5.0000 0.5 -40°C to +85°C 3 SC70-3 AFS
MAX6138
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
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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© 2004 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.
Package Information
SC70, 3L.EPS
Mouser Electronics
Authorized Distributor
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MAX6138AEXR30+T MAX6138CEXR12+T MAX6138CEXR25+T MAX6138AEXR12+T MAX6138AEXR21+T
MAX6138AEXR33+T MAX6138AEXR41+T MAX6138AEXR50+T MAX6138BEXR12+T MAX6138BEXR25+T
MAX6138BEXR30+T MAX6138BEXR33+T MAX6138BEXR41+T MAX6138BEXR50+T MAX6138CEXR21+T
MAX6138CEXR30+T MAX6138CEXR33+T MAX6138CEXR41+T MAX6138CEXR50+T MAX6138BEXR21+T
MAX6138AEXR25+T MAX6138BEXR33-T MAX6138AEXR33+ MAX6138AEXR12+ MAX6138BEXR30+
MAX6138CEXR21