Datasheet

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_______________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
♦ 3-Pin SOT23 Package
♦ Supply Current Independent of Input Voltage
Over Temperature
♦ 50µA Supply Current
♦ 2.4V to 11V Input Voltage Range
♦ 30ppm/°C Typical Tempco (SOT23)
♦ ±1% Initial Accuracy (SOT23)
MAX6120
Low-Cost, Micropower, Precision, 3-Terminal,
1.2V Voltage Reference
________________________________________________________________ Maxim Integrated Products 1
1
2
3
4
8
7
6
5
V
IN
N.C.
N.C.
N.C.
GND
N.C.
N.C.
V
OUT
MAX6120
SO
TOP VIEW

1
2
3
GND
V
IN


V
OUT
MAX6120
SOT23
_________________Pin Configurations
______________Ordering Information
V
IN
GND
V+
2.4V to 11V
0V
0.1µF
V
OUT
V
OUT
1.2V
MAX6120
__________Typical Operating Circuit
PART
MAX6120ESA
MAX6120EUR -40°C to +85°C
-40°C to +85°C
TEMP. RANGE PIN-PACKAGE
8 SO
3 SOT23-3
19-0458; Rev 1; 9/96