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FEATURES
Initial accuracy
A grade: ±0.24%
B grade: ±0.12%
Maximum temperature coefficient
A grade: 25 ppm/°C
B grade: 9 ppm/°C
Low dropout: 300 mV for ADR121/ADR125
High output current: +5 mA/−2 mA
Low typical operating current: 85 μA
Input range: 2.7 V to 18 V for ADR127
Temperature range: −40°C to +125°C
Tiny TSOT (UJ-6) package
APPLICATIONS
Battery-powered instrumentation
Portable medical equipment
Data acquisition systems
Automotive

GENERAL DESCRIPTION
The ADR121/ADR125/ADR127 are a family of micropower,
high precision, series mode, band gap references with sink and
source capability. The parts feature high accuracy and low
power consumption in a tiny package. The ADR12x design
includes a patented temperature-drift curvature correction
technique that minimizes the nonlinearities in the output
voltage vs. temperature characteristics.
The ADR12x is a low dropout voltage reference, requiring only
300 mV for the ADR121/ADR125 and 1.45 V for the ADR127
above the nominal output voltage on the input to provide a
stable output voltage. This low dropout performance, coupled
with the low 85 μA operating current, makes the ADR12x ideal
for battery-powered applications.
Available in an extended industrial temperature range of −40°C
to +125°C, the ADR121/ADR125/ADR127 are housed in the
tiny TSOT (UJ-6) package.

APPLICATIONS

• Aerospace & Defense
• Automotive
• Communications
• Consumer
• Energy
• Healthcare

• Instrumentation & Measurement
• Motor & Power Control
• Process Control & Industrial Automation

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