Product Summary

The ADS7843EG4 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.

Parametrics

Absolute maximum ratings: (1)+VCC to GND: –0.3V to +6V; (2)Analog Inputs to GND: –0.3V to +VCC + 0.3V; (3)Digital Inputs to GND: –0.3V to +VCC + 0.3V; (4)Power Dissipation: 250mW; (5)Maximum Junction Temperature: +150℃; (6)Operating Temperature Range: –40℃ to +85℃; (7)Storage Temperature Range: –65℃ to +150℃; (8)Lead Temperature (soldering, 10s): +300℃.

Features

Features: (1)4-wire touch screen interface; (2)ratiometric conversion; (3)single supply: 2.7V to 5V; (4)up to 125kHz conversion rate; (5)serial interface; (6)programmable 8- or 12-bit resolution; (7)2 auxiliary analog inputs; (8)full power-down control.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
ADS7843EG4
ADS7843EG4
Texas Instruments
Touch Screen Converters & Controllers 4-wire Touch Screen Controller
Data Sheet
0-1: $2.51
1-25: $2.28
25-100: $2.09
100-250: $1.52
Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
ADS7223SRHBR
ADS7223SRHBR
Texas Instruments
ADC (A/D Converters) 12B 1MSPS 4x2/2x2 Simu Sampling SAR
Data Sheet
0-2405: $2.66
2405-3000: $2.66
ADS7223SRHBT
ADS7223SRHBT
Texas Instruments
ADC (A/D Converters) 12B 1MSPS 4x2/2x2 Simu Sampling SAR
Data Sheet
0-1: $6.14
1-10: $5.52
10-25: $4.91
25-50: $4.63
ADS7229IPW
ADS7229IPW
Texas Instruments
ADC (A/D Converters) Lo Pwr 12B 1-MHz Sgl Dual Unipolar Inp
Data Sheet
0-1: $3.78
1-10: $3.40
10-25: $3.02
25-50: $2.85
ADS7229IPWG4
ADS7229IPWG4
Texas Instruments
ADC (A/D Converters) Lo-Pwr 12B 1MHz Sgl Dual Unipol In ADC
Data Sheet
0-1: $3.78
1-10: $3.40
10-25: $3.02
25-50: $2.85
ADS7229IPWR
ADS7229IPWR
Texas Instruments
ADC (A/D Converters) Lo Pwr 12B 1-MHz Sgl Dual Unipolar Inp
Data Sheet
0-1605: $1.55
1605-2000: $1.55
ADS7229IPWRG4
ADS7229IPWRG4
Texas Instruments
ADC (A/D Converters) Lo-Pwr 12B 1MHz Sgl Dual Unipol In ADC
Data Sheet
0-1605: $1.55
1605-2000: $1.55