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。

SIG7798/SIG7799
4.17SPS to 890SPS ADC with PGA and Reference

Compatible Parts
AD7798/AD7799 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

• Simultaneous 50Hz/60Hz Rejection

• 4 Differential Inputs

• Current: 0.5mA

• Specified Temperature Range: -40℃ to 125℃

• Package: 16-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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