桥式传感器ADC Bridge Transducer ADC
Product Details
The AD7730 is a complete analog front end for weigh-scale and pressure measurement applications. The device accepts low-level signals directly from a transducer and outputs a serial digital word. The input signal is applied to a proprietary programmable gain front end based around an analog modulator. The modulator output is processed by a low pass programmable digital filter, allowing adjustment of filter cutoff, output rate and settling time.
The part features two buffered differential programmable gain analog inputs as well as a differential reference input. The part operates from a single +5 V supply. It accepts four unipolar analog input ranges: 0 mV to ±10 mV, +20 mV, +40 mV and +80 mV and four bipolar ranges: ±10 mV, ±20 mV, ±40 mV and ±80 mV. The peak-to-peak resolution achievable directly from the part is 1 in 230,000 counts. An on-chip 6-bit DAC allows the removal of TARE voltages. Clock signals for synchronizing ac excitation of the bridge are also provided.
The serial interface on the part can be configured for three-wire operation and is compatible with microcontrollers and digital signal processors. The AD7730 contains self-calibration and system calibration options, and features an offset drift of less than 5 nV/°C and a gain drift of less than 2 ppm/°C. The part is available in a 24-pin plastic DIP, a 24-lead SOIC and 24-lead TSSOP package.
### Features and Benefits
额定功率 125 mW
电路数 1
通道数 1
位数 24
耗散功率 65 mW
分辨率Bits 24.0
输入阻抗 9.00 GΩ
模数转换数ADC 1
工作温度Max 85 ℃
工作温度Min -40 ℃
耗散功率Max 125 mW
输入通道数 2
安装方式 Surface Mount
引脚数 24
封装 SOIC-24
长度 15.6 mm
宽度 7.6 mm
高度 2.35 mm
封装 SOIC-24
工作温度 -40℃ ~ 85℃
产品生命周期 Active
包装方式 Tape & Reel TR
RoHS标准 RoHS Compliant
含铅标准 Lead Free
军工级 No
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
AD7730BRZ-REEL ADI 亚德诺 | 当前型号 | 当前型号 |
AD7730BR-REEL7 亚德诺 | 完全替代 | AD7730BRZ-REEL和AD7730BR-REEL7的区别 |
AD7730BRZ-REEL7 亚德诺 | 完全替代 | AD7730BRZ-REEL和AD7730BRZ-REEL7的区别 |
AD7730BRZ 亚德诺 | 类似代替 | AD7730BRZ-REEL和AD7730BRZ的区别 |