Datasheet

_______________General Description
The MAX6520 is the lowest-power 1.2V, precision,
three-terminal voltage reference offered in a SOT23-3
package. Ideal for 3V battery-powered equipment
where power conservation is critical, the MAX6520 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 MAX6520 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 MAX6520 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 typi-
cally only 25ppm/°C, and is guaranteed to be less
than 50ppm/°C in the SOT23 package.
________________________Applications
Battery-Powered Systems
Portable and Hand-Held Equipment
Data-Acquisition Systems
Instrumentation and Process Control
____________________________Features
♦ 3-Pin SOT23 Package
♦ 50ppm/°C max Tempco
♦ Supply Current Independent of Input Voltage
Over Temperature
♦ 50µA Supply Current
♦ 2.4V to 11V Input Voltage Range
♦ ±1% Initial Accuracy
MAX6520
50ppm/°C, SOT23, 3-Terminal,
1.2V Voltage Reference
TOP VIEW
1
2
3
GND
V
IN
V
OUT
MAX6520
SOT23
__________________Pin Configuration
______________Ordering Information
V
IN
GND
V+
2.4V to 11V
0V
0.1µF
V
OUT
V
OUT
1.2V
MAX6520
__________Typical Operating Circuit
19-1130; Rev 1; 7/05
*Contact factory for availability.
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX6520EUR-T
-40°C to +85°C3 SOT23-3
EFAA
________________________________________________________________ Maxim Integrated Products 1
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.