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模数转换器 SIG7794 国产平替 AD7794,替代 AD7794
slot867 | 2024-06-03 10:21:37    阅读:82   发布文章

信格勒微电子的芯片产品已通过行业头部大厂导入验证,深受百万终端客户好评。
而且因为 fully compatible. 板子拿来,换个芯片,性能更好。MCU 不用改 c code。

SIG7794/SIG7795

4.17SPS to 890SPS ADC with PGA and Reference

Compatible Parts
AD7794/AD7795 pin/register fully compatible (10nV/℃ and 3ppm/℃).

Features

  •     Programmable Gain: 1/2/4/8/16/32/64/128

  •     Data Rates: 4.17SPS to 890SPS

  •     RMS Noises: 20nV at 4.17SPS (Gain = 128)

  •     23.2ENOB (21.0 noise-free bits) at 4.17SPS (Gain= 1)

  •     Offset Drift: 5nV/℃ (Gain = 128)

  •     Gain Drift: 1ppm/℃

  •     Integral Non-linearity: 3ppm

  •     internal reference: 4ppm/℃

  •     Reference input current: 1uA

  •     Internal or External Clock

  •     Simultaneous 50Hz/60Hz Rejection

  •     6 Differential Inputs

  •     Current: 0.5mA

  •     Specified Temperature Range: -40℃ to 125℃

  •     Package: 24-ld TSSOP

  •     Power Supply   

    AVDD:2.7V to 5.25V
    DVDD:2.7V to 5.25V
Applications
  •     Weight Scales and Strain Gauges

  •     Flow/Pressure Measurement

  •     Temperature Measurement

  •     Industrial Process Control

  •     Medical Instrumentation

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