CS1180 – 20-bit High-Precision Low Power ADC with SPI Interface – CHIPSEA

The CS1180 is a high-precision, low-power Analog-to-Digital Converter (ADC) with a true 20-bit no-missing-code resolution and up to 19-bit effective resolution. It integrates key features such as programmable gain, notch filters for 50Hz/60Hz interference, and an SPI-compatible interface, making it ideal for high-accuracy data acquisition in industrial and scientific applications. Designed for compact, battery-powered systems, the CS1180 supports a wide reference voltage range and offers quick conversion readiness within a single clock cycle.

🔧 Key Features:

• 20-bit no missing code ADC with 19-bit effective resolution

• Programmable gain amplifier (PGA): 1 to 128

• Integrated 50Hz / 60Hz notch filter (up to −90dB rejection)

• INL less than 0.0015% for excellent linearity

• Programmable output data rate

• SPI-compatible serial communication interface

• Wide external reference voltage: 0.1V to 5V

• On-chip self-calibration and ready in one clock cycle

• Low power consumption for portable devices

📌 Typical Applications:

• Industrial process control systems

• Electronic weighing scales and load cells

• Liquid and gas chemical analysis instruments

• Blood analyzers and medical diagnostic equipment

• Smart signal transducers

• Portable measuring instruments