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Microchip 12/14-bit ADCs | Featured Product Spotlight

February 04, 2020 by Mouser Electronics

This Featured Product Spotlight is part of a video series exploring the specifications, applications, and market context of new products.

Microchip 12/14-bit ADCs

Microchip Technology MCP33141 and MCP33151 12- and 14-bit single-ended input ADCs combine high performance and low power consumption in a small package, and are ideal for high-precision data acquisition, medical instrumentation, test equipment, EV battery management, and many other applications.

The ADCs provide 12-bit or 14-bit resolution with no missing codes, and both resolutions are available with 1Msps and 500ksps variants with no latency output. They offer independent voltage rails for VREF, AVDD, and DVIO, providing designers the flexibility to set VREF and AVDD as high as 5.1V to match the analog input range, and DVIO to match the host interface voltage. 

The inputs have a full-scale range from 0V to VREF.  The ADCs also have automatic and on-demand self-calibration capability to account for offset, gain, and linearity errors, providing stable performance across the entire -40°C to +125°C operating temperature range.

The MCP33141 and MCP33151 also offer very low power consumption.  In standby or low current input acquisition mode, the devices draw just 1.5µA.  In this mode, the internal input sampling capacitors are connected to the single-ended input, and most other analog circuitry is shut down to save power.  During conversion, current consumption stays low at 0.33mA for 500ksps and 0.66mA for 1Msps.

The parts are easy-to-use, with MSOP-10 or TDFN-10 package options and an industry-standard SPI-compatible interface that supports SCLK frequencies up to 100MHz, which is independent of the internal ADC system clock used to perform conversions. 

The ADCs also have a built-in data accumulator that can integrate up to 1024 consecutive conversions and automatically average conversions to increase the effective number of bits to 18. The devices are AEC-Q100 qualified for use in automotive designs. 

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