Resistive Touch Controllers

Analog Devices offers a range of controller ICs for use with 4-wire resistive touch screens. These controllers can be used in human machine interface applications in consumer, automotive, and other products. Analog Devices’ controllers have 12 bits of resolution, SPI/I2C interface options, and low power consumption, making them ideal for use in handheld devices.
Product Selection Table

Capacitance to Digital and Touch Screen Controllers

  Hold Shift Key for secondary sorting
SortOrderPart#Device Primary Function# of ChannelsSample Rate
(max)
(SPS)
Throughput Rate per Channel
(SPS)
Resolution
(bits)
Cin Base Offset Range
(typ)
(F)
Cin RangesInterfaceIs
(typ)
(A)
AutomotiveUS Price 1000 to 4999
($ US)
1AD7889 Touch Screen Controller 3 105k- 12-- I²C, Serial 650µ No-
2AD7147A Capacitance to Digital 13 111 111 16 20p ±8 I²C, SPI 0.9m No-
3AD7879 Touch Screen Controller 2 105k- 12-- I²C, Serial 650µ Yes $1.74
4AD7156 Capacitance to Digital 2 100 100 12 10p 0.5, 1, 2, 4 I²C 65µ No $1.29
5AD7153 Capacitance to Digital 1 200 200 12 10p ±0.25, ±0.5, ±1, ±2, 0.5, 1, 2, 4 I²C 100µ No $1.82
6AD7152 Capacitance to Digital 2 200 200 12 10p ±0.25, ±0.5, ±1, ±2, 0.5, 1, 2, 4 I²C 100µ No $2.03
7AD7151 Capacitance to Digital 1- 100 12 10p 0.5, 1, 2, 4 I²C 70µ No $1.41
8AD7150Reference Circuit Available Capacitance to Digital 2- 200 12 10p 0.5, 1, 2, 4 I²C 100µ No $1.41
9AD7147 Capacitance to Digital 13- 111 16 20p ±8 I²C, SPI 0.9m Yes $1.32
10AD7747 Capacitance to Digital 1- 45.5 24 17p ±8.192 I²C 0.7m No $4.80
11AD7143 Capacitance to Digital 8- 40 16 20p ±2 I²C 0.9m No-
12AD7142 Capacitance to Digital 14 250k 27.8 16 20p ±2 I²C, SPI 0.9m No $1.41
13AD7746Reference Circuit Available Capacitance to Digital 2- 90 24 17p ±4.096 I²C 0.7m No $6.29
14AD7745Reference Circuit Available Capacitance to Digital 1- 90 24 17p ±4.096 I²C 0.7m No $4.80
15AD7877 Touch Screen Controller 5 125k- 12-- Serial 880µ Yes $2.21
16AD7873 Touch Screen Controller 6 125k- 12-- Serial 670µ No $2.01
17AD7843 Touch Screen Controller 4 125k- 12-- Serial 240µ No $1.19

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