Texas Instruments PGA308 Single-Supply Auto-Zero Sensor Amplifier
Texas Instruments PGA308 Single-Supply Auto-Zero Sensor Amplifier is a programmable analog sensor signal conditioner. The analog signal path amplifies the sensor signal and provides digital calibration for offset and gain. Calibration is done via the 1W pin. This is a digital One-Wire, UART-compatible interface. For three-terminal sensor modules, 1W may be connected to VOUT; then the assembly can be programmed through the VOUT pin. Gain and offset calibration parameters are stored on-board in seven banks of one-time programmable (OTP) memory. The power-on reset (POR) OTP bank may be programmed a total of four times.
Features
- Digital calibration for bridge sensors
- Coarse and fine offset select
- Coarse and fine gain select
- Bridge fault monitor
- Input mux for lead swap
- Over/under scale limits
- DOUT/VOUT clamp function
- Seven banks OTP memory
- One-wire digital UART interface
- +2.7V to +5.5V operating voltage
- -40°C to +125°C temperature range
- MSOP-10 and 3mm × 4mm DFN-10 packages
Applications
- Bridge sensors
- Remote 4-20mA transmitters
- Strain, load, weigh scales
- Automotive sensors
Development Tool
Texas Instruments PGA308EVM Evaluation Module (EVM)
Used to evaluate the PGA308 mixed-signal programmable gain amplifier.
Pubblicato: 2015-06-03
| Aggiornato: 2023-10-31