MAX6138CEXR12+T Maxim Integrated Products, MAX6138CEXR12+T Datasheet

IC REF VOLT SHUNT SC70-3

MAX6138CEXR12+T

Manufacturer Part Number
MAX6138CEXR12+T
Description
IC REF VOLT SHUNT SC70-3
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX6138AEXR30T.pdf (13 pages)

Specifications of MAX6138CEXR12+T

Reference Type
Shunt
Voltage - Output
1.2205V
Tolerance
±0.5%
Temperature Coefficient
25ppm/°C
Number Of Channels
1
Current - Cathode
60µA
Current - Output
15mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SC-70-3, SOT-323-3
Product
Voltage References
Topology
Shunt References
Output Voltage
1.2205 V
Initial Accuracy
0.5 %
Average Temperature Coefficient (typ)
4 PPM / C
Shunt Current (max)
15 mA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Input
-
Current - Quiescent
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
MAX6138CEXR12+T
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.
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.
TOP VIEW
Portable, Battery-Powered Equipment
Notebook Computers
Cell Phones
Industrial Process Control
0.1%, 25ppm, SC70 Shunt Voltage Reference
with Multiple Reverse Breakdown Voltages
________________________________________________________________ Maxim Integrated Products
+
*PIN 3 MUST BE LEFT FLOATING
-
OR CONNECTED TO PIN 2.
1
2
General Description
MAX6138
SC70
Pin Configuration
3
Applications
N.C.*
o Ultra-Small 3-Pin SC70 Package
o 0.1% (max) Initial Accuracy
o 25ppm/°C (max) Temperature Coefficient
o Wide Operating Current Range: 60µA to 15mA
o Low 28µV
o 1.2205V, 2.048V, 2.5V, 3.0V, 3.3V, 4.096V, and 5.0V
o No Output Capacitors Required
o Stable with Capacitive Loads
Ordering Information appears at end of data sheet.
MAX6138_EXR12-T -40°C to +85°C
MAX6138_EXR21-T -40°C to +85°C
MAX6138_EXR25-T -40°C to +85°C
MAX6138_EXR30-T -40°C to +85°C
MAX6138_EXR33-T -40°C to +85°C
MAX6138_EXR41-T -40°C to +85°C
MAX6138_EXR50-T -40°C to +85°C
Guaranteed Over -40°C to +85°C Temperature
Range
Fixed Reverse Breakdown Voltages
PART
RMS
I
Typical Operating Circuit
SHUNT
Output Noise (10Hz to 10kHz)
R
S
V
S
RANGE
TEMP
I
SHUNT
I
LOAD
MAX6138
+ I
LOAD
Selector Guide
PIN-
PACKAGE
3 SC70-3
3 SC70-3
3 SC70-3
3 SC70-3
3 SC70-3
3 SC70-3
3 SC70-3
V
R
Features
VOLTAGE
OUTPUT
1.2205
2.0480
2.5000
3.0000
3.3000
4.0960
5.0000
(V)
1

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MAX6138CEXR12+T Summary of contents

Page 1

... SC70 *PIN 3 MUST BE LEFT FLOATING OR CONNECTED TO PIN 2. ________________________________________________________________ Maxim Integrated Products 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. o Ultra-Small 3-Pin SC70 Package o 0.1% (max) Initial Accuracy o 25ppm/°C (max) Temperature Coefficient Guaranteed Over -40° ...

Page 2

SC70 Shunt Voltage Reference with Multiple Reverse Breakdown Voltages ABSOLUTE MAXIMUM RATINGS Reverse Current (cathode to anode) ..................................20mA Forward Current (anode to cathode) ..................................10mA Continuous Power Dissipation (T = +70° 3-Pin SC70 (derate 2.17mW/°C above +70°C) ...

Page 3

SC70 Shunt Voltage Reference with Multiple Reverse Breakdown Voltages ELECTRICAL CHARACTERISTICS—MAX6138_21 (2.048V 100µ -40°C to +85°C, unless otherwise noted. Typical values are PARAMETER SYMBOL Reverse Breakdown V R Voltage (Note ...

Page 4

SC70 Shunt Voltage Reference with Multiple Reverse Breakdown Voltages ELECTRICAL CHARACTERISTICS—MAX6138_30 (3.0V 100µ -40°C to +85°C, unless otherwise noted. Typical values are PARAMETER SYMBOL Reverse Breakdown V R Voltage (Note ...

Page 5

SC70 Shunt Voltage Reference with Multiple Reverse Breakdown Voltages ELECTRICAL CHARACTERISTICS—MAX6138_41 (4.096V 100µ -40°C to +85°C, unless otherwise noted. Typical values are PARAMETER SYMBOL Reverse Breakdown V R Voltage (Note ...

Page 6

SC70 Shunt Voltage Reference with Multiple Reverse Breakdown Voltages (I = 100µ +25°C, unless otherwise noted REVERSE CHARACTERISTICS AND MINIMUM OPERATING CURRENT 6 MAX6138_50 5 MAX6138_41 4 MAX6138_30 3 MAX6138_25 MAX6138_20 2 MAX6138_12 1 ...

Page 7

SC70 Shunt Voltage Reference with Multiple Reverse Breakdown Voltages (I = 100µ +25°C, unless otherwise noted MAX6138_25 REVERSE VOLTAGE vs. I 5.0 4 +85°C 4.0 A 3.5 3 +25°C A ...

Page 8

SC70 Shunt Voltage Reference with Multiple Reverse Breakdown Voltages (I = 100µ +25°C, unless otherwise noted MAX6138_50 LOAD-TRANSIENT RESPONSE 40µs/div I = 100µA SHUNT R = 100kΩ L MAX6138_25 LOAD-TRANSIENT RESPONSE 10µs/div I = ...

Page 9

SC70 Shunt Voltage Reference with Multiple Reverse Breakdown Voltages (I = 100µ +25°C, unless otherwise noted MAX6138_12 LOAD-TRANSIENT RESPONSE 10µs/div I = 10mA SHUNT R = 1kΩ L MAX6138_50 LOAD-TRANSIENT RESPONSE 40µs/div I = ...

Page 10

SC70 Shunt Voltage Reference with Multiple Reverse Breakdown Voltages (I = 100µ +25°C, unless otherwise noted MAX6138_25 OUTPUT IMPEDANCE vs. FREQUENCY 1000 C = 1µF L 100 I = 150µ ...

Page 11

SC70 Shunt Voltage Reference with Multiple Reverse Breakdown Voltages PIN NAME N.C. Detailed Description The MAX6138 shunt reference uses the bandgap prin- ciple to produce a stable, accurate voltage. The device behaves similarly ...

Page 12

SC70 Shunt Voltage Reference with Multiple Reverse Breakdown Voltages OUTPUT PART VOLTAGE (V) MAX6138AEXR12-T 1.2205 MAX6138BEXR12-T 1.2205 MAX6138CEXR12-T 1.2205 MAX6138AEXR21-T 2.0480 MAX6138BEXR21-T 2.0480 MAX6138CEXR21-T 2.0480 MAX6138AEXR25-T 2.5000 MAX6138BEXR25-T 2.5000 MAX6138CEXR25-T 2.5000 MAX6138AEXR30-T 3.0000 MAX6138BEXR30-T 3.0000 MAX6138CEXR30-T 3.0000 MAX6138AEXR33-T ...

Page 13

... 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13 © 2004 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products ...

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