Digitally Calibrated Bridge Sensor Signal Conditioner with 4mA to 20mA Current Loop Output
Reference Design using part PGA309AIPWR by Texas Instruments
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Associated Documents
For End Products
- Automotive Sensor
- Optical Transmitter
- Strain Gauge
- Weigh Scale/Bridge Sensor
Description
- Digitally calibrated bridge sensor signal conditioner with 4mA to 20mA current loop output. This bridge sensor conditioner module delivers a well regulated current output to a ground-referenced load. The first stage uses a mixed-signal programmable gain amplifier (PGA) to provide linearization and temperature compensation to a differential bridge sensor voltage. The second stage converts the PGA output voltage into current and transmits the current over a standard 4 mA to 20 mA current loop
Key Features
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Gain-3 dB
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Supply Voltage7.5 to 40 V
Featured Parts (2)
| Part Number | Manufacturer | Type | Description | |||
|---|---|---|---|---|---|---|
|
24LC16BHT-I/OT | Microchip Technology | EEPROM | EEPROM Serial-I2C 16K-bit 8Block x 256 x 8 3.3V/5V 5-Pin SOT-23 T/R | Buy | |
|
PGA309AIPWR | Texas Instruments | Sensor and Detector Interface | Sensor and Detector Interface 5.5V Serial Interface 16-Pin TSSOP T/R | Buy | |