AD7873 Datasheet Touch Screen Digitizer

Manufacturer: Analog Devices

Datasheet Details

The AD7873 is a 12-bit successive approximation ADC with a synchronous serial interface and low on resistance switches for driving touch screens.

The AD7873 operates from a single 2.2 V to 5.25 V supply, with a throughput rate of 125 kSPS.

The AD7873

Data Sheet.

4-wire touch screen interface On-chip temperature sensor:.
40°C to +85°C On-chip 2.5 V reference Direct battery measurement (0 V to 6 V) Touch pressure measurement Specified throughput rate of 125 kSPS Single supply, VCC of 2.2 V to 5.25 V Ratiometric conversion High speed serial interface Programmable 8-bit or 12-bit resolution One auxiliary analog input Shutdown mode: 1 µA maximum 16-lead QSOP, TSSOP, and LFCSP packages.

Part Number	Description
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AD7870A	LC2MOS Complete/ 12-Bit/ 100 kHz / Sampling ADC
AD7871	Complete 14-Bit Sampling ADCs
AD7872	Complete 14-Bit Sampling ADCs
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AD7875	LC2MOS Complete/ 12-Bit/ 100 kHz/ Sampling ADCs
AD7876	LC2MOS Complete/ 12-Bit/ 100 kHz/ Sampling ADCs
AD7877	Touch Screen Controller
AD7878	LC2MOS Complete 12-Bit 100 kHz Sampling ADC with DSP Interface
AD7879	Low Voltage Controller