Main application scenarios: infrared thermopile sensors, bridge sensors, etc.
CS1259B is a 24-bit high precision ADC with integrated high-precision ADC signal chain, low drift LDO, low temperature drift reference voltage, high-precision oscillator and 3-wire communication interface. The ADC signal chain includes input MUXP/MUXN, level shift module (LVSHIFT), low noise programmable gain amplifier (PGA), 24-bit Sigma-delta ADC, digital filter, supporting sensors such as bridge sensors, infrared thermopiles, etc., which is ideal for the currently popular forehead infrared thermometer applications.
Supports single-ended or differential inputs
Up to 5 external input channels to form multiple differential input pairs
Supports input level shift function.
PGA
-1/2/4/8/16/32/64/128x selectable gain
-Up to 100 Mohm equivalent input impedance
-Built-in low drift LDO, output 2.35/2.45/2.8/3.0 V selectable, 30 ppm/℃, accuracy ±1%
-Built-in 1.225 V low drift reference voltage, 30 ppm/℃, accuracy ±1%
Supports performance, normal, low power consumption, and sleep mode
Supports voltage measurement, temperature measurement, and manual measurement modes with single command switching
Low drift on-chip clock
Three-wire serial communication
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