12-bit, 8-channel DAS with serial interface
The MAX188ACWP+ from Analog Devices (formerly Maxim Integrated) is a 12-bit data-acquisition system integrating an 8-channel multiplexer, a successive-approximation ADC, and a serial interface in a 20-SOIC package. It samples at 133k samples per second and requires dual ±5V supplies. The MICROWIRE-, QSPI-, and SPI-compatible interface keeps pin count low and simplifies isolation for remote or noisy environments.
Sampling rate and channel count — what they mean for your design
At 133 ksps, this ADC digitizes input signals with a 12-bit quantization step on a ±5V range. The 8-input multiplexer lets one part handle eight analog channels. The serial interface (SPI/QSPI/MICROWIRE) requires only four or five digital lines to the host controller.
Supply and temperature — fit constraints
This part runs on dual ±5V rails — a bipolar supply typical of precision analog systems but absent in many single-supply MCU-based designs. The 0°C to 70°C commercial temperature range limits it to indoor, office, or lab equipment; it is not rated for automotive or extended industrial environments. The 20-SOIC wide-body package (7.50 mm width) is a standard footprint for multi-channel data-acquisition ICs.
Lifecycle and compliance
The MAX188ACWP+ is listed as Active in production and is ROHS3 compliant. No NRND or EOL notice is associated with this order code.