MAX189BCWE

The MAX189BCWE from Analog Devices is a serial 12-bit analog-to-digital converter (ADC) designed for low-power applications. It operates from a single +5V supply and accepts a 0 to 5V analog input. The device features an 8.5-bit successive-approximation ADC, a fast track/hold, an on-chip clock, and a high-speed 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE.

With a throughput rate of 75kSPS, the MAX189BCWE digitizes signals efficiently. It requires an external reference. The ADC is available in a space-saving 16-pin SOIC package, making it suitable for circuits where power consumption and space are critical.

Key electrical characteristics include 12-bit resolution, ±0.5 LSB integral nonlinearity (for specific variants), a 75kHz sampling rate, and low power consumption with 1.5mA operating current and 2µA shutdown current. The operating temperature range is 0°C to 70°C.

This ADC is ideal for applications such as portable data logging, remote digital signal processing, isolated data acquisition, and high-accuracy process control where a compact, low-power, and precise analog-to-digital conversion is required.