ADA4255
FEATURES
- Integrated bipolar charge pump
- Simplified isolation requirements
- Wide input range on low voltage supplies
- Dedicated output amplifier supplies for ADC protection
- Low power: 83 m W (DVDD = 3 V, VDDCP = 5 V)
- 36 precision gains from 1/16 V/V to 176 V/V
- Robust ±60 V protected 2:1 input multiplexer
- Excellent dc precision
- Low input offset voltage: ±14 μV maximum
- Low input offset voltage drift: ±0.08 μV/°C maximum
- Gain calibration via internal memory
- Low gain drift: ±1 ppm/°C maximum
- High CMRR: 111 d B minimum, G = 1 V/V
- Low input bias current: ±1.5 n A maximum at TA = 25℃
- Integrated input EMI filtering
- 7 GPIOx ports with special functions
- Sequential chip select mode
- Excitation current source
- SPI port with checksum (CRC) support
- Internal/external fault detection
- pact 28-lead, 5 mm × 5 mm LFCSP
- Specified temperature range:
- 40°C to +105°C
Zero Drift, High Voltage, Programmable Gain Instrumentation Amplifier with Charge Pump
The zero drift PGIA...
