MAX6120 Datasheet, PDF (1/6 Pages) Maxim Integrated Products – Low-Cost, Micropower, Precision, 3-Terminal, 1.2V Voltage Reference

19-0458; Rev 1; 9/96
Low-Cost, Micropower, Precision, 3-Terminal,
1.2V Voltage Reference
_______________General Description
The MAX6120 is the lowest-power 1.2V, precision,
three-terminal voltage reference offered in a SOT23
package. Ideal for 3V battery-powered equipment
where power conservation is critical, the MAX6120 is a
low-power alternative to existing two-terminal shunt ref-
erences. Unlike two-terminal references that throw
away battery current and require an external series
resistor, the MAX6120 has a 70µA maximum supply
current (typically only 50µA) that is independent of the
input voltage. This feature translates to maximum effi-
ciency at all battery voltages.
The MAX6120 operates from a supply voltage as low as
2.4V, and initial accuracy is ±1% for the SOT23 pack-
age. Output voltage temperature coefficient is typically
only 30ppm/°C, and is guaranteed to be less than
100ppm/°C in the SOT23 package. For a guaranteed
output voltage temperature coefficient of less than
50ppm/°C, see the MAX6520 data sheet.
________________________Applications
Battery-Powered Systems
Portable and Hand-Held Equipment
Data-Acquisition Systems
Instrumentation and Process Control
____________________________Features
o 3-Pin SOT23 Package
o Supply Current Independent of Input Voltage
Over Temperature
o 50µA Supply Current
o 2.4V to 11V Input Voltage Range
o 30ppm/°C Typical Tempco (SOT23)
o ±1% Initial Accuracy (SOT23)
______________Ordering Information
PART
MAX6120ESA
MAX6120EUR
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 SO
3 SOT23-3
_________________Pin Configurations
TOP VIEW
__________Typical Operating Circuit
V+
2.4V to 11V
V_IN
V_IN 1
V_OUT 2
MAX6120 ^{3 GND}
SOT23
0.1µF
0V
MAX6120
V_OUT
V_OUT
1.2V
GND
V_{OUT 1}
N.C. ₂
N.C. 3
GND 4
MAX6120
SO
8 ^VIN
7 N.C.
6 N.C.
5 N.C.
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