产品概览
AD7730BRZ-REEL from ADI is a 24-bit sigma-delta ADC for weigh scale applications. Programmable gain (1-128). Bipolar +/-10mV to +/-10V inputs. 80Hz-1.2kHz update rate. TSSOP-24.
工作原理
Sigma-delta ADC with programmable gain front-end. Chopping for offset drift elimination. Bipolar differential inputs. AC excitation for bridge sensors. Internal calibration. SPI interface.
Pin Description
| 别针组 | 名称 | 功能 |
|---|---|---|
| 模拟 | AIN+/AIN- | Differential input |
| Excitation | ACX/ACX | AC bridge excitation |
| 数字 | SCLK/CS/RDY | SPI interface |
应用
- Weigh scales and load cells
- Pressure transducers
- Strain gauge measurement
Alternative Models
| 制造商 | 部件编号 | 说明 |
|---|---|---|
| ADI | AD7730LBRZ-REEL | Lower power |