The ADS7843-Q1 is a 12-bit sampling Analog-to-Digital Converter (ADC) with a synchronous
serial interface and low on-resistance switches for driving touch screens. Typical power
dissipation is 750µW at a 125kHz throughput rate and a +2.7V supply. The reference voltage
(VREF) can be varied between 1V and +VCC, providing a corresponding input voltage range of 0V to VREF. The device includes a shutdown mode which reduces typical power dissipation to under 0.5µW. The ADS7843-Q1 is specified down to 2.7V operation.
Low power, high speed, and onboard switches make the ADS7843-Q1 ideal for
battery-operated systems such as personal digital assistants with resistive touch screens and other
portable equipment. The ADS7843-Q1 is available in an SSOP-16 package and is specified over the
–40°C to +85°C temperature range.
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