Texas Instruments REF34xx/REF34xx-Q1 Low-Power Voltage References
Texas Instruments REF34xx/REF34xx-Q1 Low-Drift Low-Power Voltage References are low-temperature drift (6ppm/°C), low-power, high-precision CMOS voltage reference. These voltage references feature ±0.05% initial accuracy and low operating current with power consumption less than 95µA. These devices also offer very low output noise of 5µVp-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/Q1 offers enhanced specifications and pin-to-pin replacement for MAX607x and ADR34xx. The REF34xx/Q1 family is compatible with most of the ADC and DAC such as ADS1287, ADUCM360, 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 (95µA) can benefit portable and battery-powered applications. The REF34xx-Q1 devices are AEC-Q100 qualified for automotive applications. The Texas Instruments REF34xx-EP devices have gold bond wires, a temperature range of –55 to +105°C and a SnPb lead finish.
Features
- ±0.05% (Maximum) initial accuracy
- 12V wide input voltage
- 5µVPP/V output 1/f noise (0.1Hz to 10Hz)
- 6ppm/°C (Maximum) temperature coefficient
- −40°C to +125°C operating temperature range
- ±10mA output current
- 6-pin SOT-23 small footprint package
- 95µA (Maximum) low quiescent current
- Excellent long-term stability 30ppm/1000 hrs
- REF34xx-Q1 is AEC-Q100 qualified with the following results
- Device temperature Grade 1 (–40°C to +125°C ambient operating temperature)
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C6
Applications
- Precision data acquisition systems
- PLC analog I/O modules
- Field transmitters
- Industrial instrumentation
- Test equipment
- Power monitoring
Functional Block Diagram
Inilathala: 2018-01-31
| Na-update: 2022-10-25