1 Features
1• Voltage options: 2.5V, 3V, 3.3V, 4.096V, 5V
• Initial accuracy: ±0.05% (maximum)
• Low temperature coefficient :
– A grade: 12 ppm/°C (maximum)
– B grade: 30 ppm/°C (maximum)
• Operating temperature range: −40°C to +125°C
• Output current: ±10 mA
• Low quiescent current: 100 μA (maximum)
• Output 1/f noise (0.1 Hz to 10 Hz): 15 μVPP/V
• Excellent long-term stability 30 ppm/1000 hrs
• Small footprint 5-pin SOT-23 package

2 Applications
• Data acquisition (DAQ)
• PLC analog I/O modules
• Field transmitters
• Motor drive control module
• Battery test equipment
• LCR meters

3 Description
The REF4132 device is a low temperature drift
(12 ppm/°C), low-power, high-precision CMOS
voltage reference, featuring ±0.05% initial accuracy,
low operating current with power consumption less
than 100μA. This device also offers very low output
noise of 15 μVp-p/V, which enables its ability to
maintain high signal integrity with high-resolution data
converters in noise critical systems. Packaged in the
same SOT-23-5 package, REF4132 offers enhanced
specifications and pin-to-pin replacement for LM4128
and LM4132.
Stability and system reliability are further improved by
the low output-voltage hysteresis of the device and
low long-term output voltage drift. Furthermore, the
small size and low operating current of the devices
(100 μA) can benefit portable and battery-powered
applications.
REF4132 is specified for the wide temperature range
of −40°C to +125°C.