REF3425 Datasheet, PDF (1/25 Pages) Texas Instruments – REF3425 Low-Drift, Low-Power, Small-Footprint Series Voltage Reference

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REF3425
SBAS804 – SEPTEMBER 2017
REF3425 Low-Drift, Low-Power, Small-Footprint Series Voltage Reference
1 Features
•1 Initial Accuracy: ±0.05% (maximum)
• Temperature Coefficient : 6 ppm/°C (maximum)
• Operating Temperature Range: −40°C to +125°C
• Output Current: ±10 mA
• Low Quiescent Current: 95 μA (maximum)
• Wide Input Voltage: 12 V
• Output 1/f Noise (0.1 Hz to 10 Hz): 5 µV_PP/V
• Excellent Long-Term Stability 30 ppm/1000 hrs
• Small Footprint 6-Pin SOT-23 Package
2 Applications
• Precision Data Acquisition Systems
• Power Monitoring
• PLC Analog I/O Modules
• Industrial Instrumentation
• Field Transmitters
• Test Equipment
• LCR Meters
3 Description
The REF3425 device is a low temperature drift
(6 ppm/°C), low-power, high-precision CMOS voltage
reference, featuring ±0.05% initial accuracy, low
operating current with power consumption less than
95 μA . This device also offers very low output noise
of 5 μV_p-p /V, which enables its ability to maintain high
signal integrity with high-resolution data converters
and noise critical systems. With a small SOT-23
package, REF3425 offers enhanced specifications
and pin-to-pin replacement for MAX6071 and
ADR3425.
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
(95 μA ) make them ideal for portable and battery-
powered applications.
REF3425 is specified for the wide temperature range
of −40°C to +125°C. Contact the TI sales
representative for additional voltage options.
PART NAME
REF3425
Device Information⁽¹⁾
PACKAGE
BODY SIZE (NOM)
SOT-23 (6)
2.90 mm × 1.60 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
10
Input Signal
Simplified Schematic
10
-
124
+
1 nF
VIN
ADS1287
REF
CIN
REF34xx
1µF
COUT
10 µF
Copyright © 2017, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.