VOLTAGE REFERENCE | ADC RESOLUTION (1) | DAC RESOLUTION (1) |
---|---|---|
TL431LI, TLV431 | 10-b | 8-b |
LM4040, LM4050, REF30 | 12-b | 10-b |
REF31, REF33, REF4132 | 14-b to 16-b | 12-b |
REF34, REF50 | 16-b to 18-b | 14-b to 16-b |
REF70 | 18-b+ | 16-b+ |
The REF34xx 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 3.8
μVp-p /V, which enables its ability to maintain high signal integrity
with high-resolution data converters in noise critical systems. With a small SOT-23
package, REF34xx offers enhanced specifications and pin-to-pin replacement for
MAX607x, ADR34xx and LT1790 (REF34xxT, no EN pin). The REF34xx family is compatible
to most of the ADC and DAC such as ADS1287, DAC8802 and ADS1112.
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) benefit portable and battery-powered applications.
REF34xx is specified for the wide temperature range of −40°C to +125°C.
PART NAME | PACKAGE (1) | BODY SIZE (NOM) |
---|---|---|
REF34xx REF34xxT |
SOT-23 (6) | 2.90 mm × 1.60 mm |
Changes from Revision E (April 2021) to Revision F (June 2021)
Changes from Revision D (February 2021) to Revision E (April 2021)
Changes from Revision C (January 2021) to Revision D (February 2021)
Changes from Revision B (March 2018) to Revision C (February 2021)
Changes from Revision A (December 2017) to Revision B (March 2018)
Changes from Revision * (September 2017) to Revision A (December 2017)
PRODUCT | VOUT | |
---|---|---|
REF3425 | REF3425T | 2.5 V |
REF3430 | REF3430T | 3 V |
REF3433 | REF3433T | 3.3 V |
REF3440 | REF3440T | 4.096 V |
REF3450 | REF3450T | 5 V |