The LTC2373-18 incorporates a programmable sequencer that can store up to 16 control words for configuring the multiplexer (MUX) and input range. This provides the ability to easily combine and adapt fully differential and pseudo-differential input ranges to various multiplexed channel configurations. Single-terminated input signals can also be converted to the fully differential input range of the A/D converter core by sharing a single external driver circuit between the available MUXOUT/ADCIN pins on the device. This allows the user to achieve the A/D converter's 100dB signal-to-noise ratio with eight single-terminated inputs.
The LTC2373-18 leads a family of 16/18-bit, 8-channel successive approximation A/D converters that communicate via SPI-compatible interfaces, achieve sampling rates of 500 ksps and 1 Msps, and deliver a signal-to-noise ratio (SNR) of 100 dB at 18 bits and 96 dB at 16 bits with a fully differential input range of ±4.096 V. The LTC2373 family integrates a precision band-hopping reference with low drift and a guaranteed maximum temperature coefficient of 20 ppm/°C, along with a high-performance reference buffer, all within a small 25 mm² QFN-32 package. The device is powered by a single 5 V supply and consumes only 40 mW at 1 Msps.
The LTC2373-18 is now available with commercial, industrial and automotive temperature levels (-40°C to 125°C).

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