Main application scenarios: Electronic scales, precision measurement, and control systems
CS1238 is a high-precision, low-power analog-to-digital converter with two differential input channels, and a built-in temperature sensor and high-precision oscillator. The MCU can communicate with and configure CS1237 through 2-wire SPI interfaces, SCLK, and DRDY, such as channel, PGA, and output rate selection.
Chip features:
Built-in crystal oscillator
Integrated temperature sensor
Power down function
2-wire SPI interface with a maximum rate of 1.1 MHz
ADC functional features
24-bit with no missing codes
PGA amplification time options: 1x, 2x, 64x, and 128x
1 – 24-bit differential input with no missing codes. 20.7-bit ENOB (5 V)/20.2 bits (3.3 V), when PGA = 128x
Effective noise: PGA = 128x, 10 Hz: 25 nV
INL: Less than 0.0015%
Output rate options: 10 Hz, 40 Hz, 640 Hz, and 1.28 kHz
Short circuit function
Core sea 8-bit MCU/SOC integrated development environment
1. Integrated C compiler, assembler, linker, debugger
2. Support standard C language and assembly language development 3 Example code of integrated chips