MAX6138 Maxim Integrated Products, MAX6138 Datasheet
MAX6138
Manufacturer Part Number
MAX6138
Description
SC70 Shunt Voltage Reference
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX6138.pdf
(13 pages)
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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
SHUNT
Typical Operating Circuit
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
www.DataSheet4U.com
V
R
Features
VOLTAGE
OUTPUT
1.2205
2.0480
2.5000
3.0000
3.3000
4.0960
5.0000
(V)
1