Product Summary

The AD7873ARUZ 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 power supply and features throughput rates greater than 125 kSPS. The AD7873ARUZ features direct battery measurement, temperature measurement, and touch-pressure measurement. The applications of the AD7873ARUZ include Personal digital assistants, Smart hand-held devices, Touch screen monitors, Point-of-sale terminals, Pagers.

Parametrics

AD7873ARUZ absolute maximum ratings: (1)+VCC to GND: -0.3 V to +7 V; (2)Analog Input Voltage to GND: -0.3 V to VCC + 0.3 V; (3)Digital Input Voltage to GND: -0.3 V to VCC + 0.3 V; (4)Digital Output Voltage to GND: -0.3 V to VCC + 0.3 V; (5)VREF to GND: -0.3 V to VCC + 0.3 V; (6)Input Current to Any Pin Except Supplies1: ±10 mA; (7)Operating Temperature Range, Commercial (A, B Versions): -40℃ to +85℃; (8)Storage Temperature Range: -65℃ to +150℃; (9)Junction Temperature: 150℃; (10)QSOP, TSSOP, LFCSP Packages, Power Dissipation: 450 mW.

Features

AD7873ARUZ features: (1)4-wire touch screen interface; (2)On-chip temperature sensor: -40℃ to +85℃; (3)On-chip 2.5 V reference; (4)Direct battery measurement (0 V to 6 V); (5)Touch-pressure measurement; (6)Specified throughput rate of 125 kSPS; (7)Single supply, VCC of 2.2 V to 5.25 V; (8)Ratiometric conversion; (9)High speed serial interface; (10)Programmable 8-bit or 12-bit resolution; (11)One auxiliary analog input; (12)Shutdown mode: 1 μA max; (13)16-lead QSOP, TSSOP, and LFCSP packages.

Diagrams

AD7873ARUZ block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
AD7873ARUZ
AD7873ARUZ

IC ADC 12BIT TOUCHSCREEN 16TSSOP
Data Sheet
0-96: $2.22
AD7873ARUZ-REEL
AD7873ARUZ-REEL

IC ADC 12BIT TOUCHSCREEN 16TSSOP
Data Sheet
0-2500: $1.32
AD7873ARUZ-REEL7
AD7873ARUZ-REEL7

IC ADC 12BIT TOUCHSCREEN 16TSSOP
Data Sheet
0-1000: $1.38