https://www.hqchip.com/gongsi/73622.html

信格勒微电子 携手 华秋商城 共创国产高精度模数转换器芯片平替新生态

SIG7190 国产平替 AD7190

pin/register fully compatible. MCU 不用改 c code，板子拿来，换个芯片，性能更好。已应用于国产高精密度天平。

SIG7190/SIG7192

4.7SPS to 4.8kSPS 24-bit ADC with PGA gain 1 to 128

Compatible Parts

AD7190/AD7192 pin、register fully compatible.

Features

Programmable Gain: 1/2/4/8/16/32/64/128
Data Rates: 4.7SPS to 4.8kSPS
RMS Noises: 15nV at 10SPS (Gain = 128)
24.4ENOB (22.0 noise-free bits) at 10SPS (Gain= 1)
Offset Drift: 3nV/℃ (Gain = 128)
Gain Drift: 0.5ppm/℃
Integral Non-linearity: 3ppm
Reference input current: 500nA
Internal or External Clock
Simultaneous 50Hz/60Hz Rejection
2 Differential/4 Pseudo Differential Inputs
Current: 2.5mA
Specified Temperature Range: -40℃ to 125℃
Package: 24-ld TSSOP
Power Supply
AVDD ：2.7V to 5.25V or ±2.5V
DVDD ： 2.7V to 5.25V

Applications

Weight Scales and Strain Gauges
Flow/Pressure Measurement
Temeprature Measurement
Industrial Process Control
Medical Instrumentation