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Micropower, High Accuracy
Voltage Reference
Data Sheet
ADR3512
Rev. E Document Feedback
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FEATURES
Maximum temperature coefficient
4 ppm/°C (C grade, −40°C to +85°C)
Low long-term drift (LTD): 30 ppm (initial 1 khr typical)
Initial output voltage error: ±0.1% (maximum)
Operating temperature range: −40°C to +125°C
Output current: +10 mA source/−3 mA sink
Low quiescent current: 100 µA (maximum)
Low dropout voltage: 1.15 V at 2 mA
Output voltage noise (0.1 Hz to 10 Hz): 8 µV p-p (typical)
Qualified for automotive applications
APPLICATIONS
Automotive battery monitors
Portable instrumentation
Process transmitters
Remote sensors
Medical instrumentation
PIN CONFIGURATION
ENABLE
1
GND SENSE
2
GND FORCE
3
DNC
4
V
IN
8
V
OUT
SENSE
7
V
OUT
FORCE
6
DNC
5
NOTES
1. DNC = DO NOT CONNECT. DO NOT CONNECT TO THIS PIN.
ADR3512
TOP VIEW
(Not to Scale)
11113-001
F
igure 1. 8-Lead MSOP (RM-8 Suffix)
GENERAL DESCRIPTION
The ADR3512 is a low cost, low power, high precision CMOS
voltage reference, featuring a maximum temperature coefficient
(TC) of 4 ppm/°C (C grade, −40°C to +85°C), low operating
current, and low output noise in an 8-lead MSOP package. For
high accuracy, the output voltage and temperature coefficient
are trimmed digitally during final assembly using the Analog
Devices, Inc., patented DigiTrim® technolog y.
1
The lo
w output voltage hysteresis and low long-term output voltage
drift improve lifetime system accuracy.
This CMOS reference is specified over the automotive temperature
range of −40°C to +125°C.
Table 1. Selection Guide
Model
Output
Voltage (V)
Input Voltage
Range (V)
ADR3512WCRMZ-R7 1.200 2.3 to 5.5
1
At least U.S. Patent No. 6,696,894 covers this technology.
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