Touch Screen Controllers

Touch screen controllers are data converters which convert user actions on a screen to signals that can be read by a device. These controllers plug into sensors that communicate touch actions electronically, enabling the use of a touch screen device as an input mechanism in place of a mouse or keypad.


What are touch screen controllers used for?

Touch screen controllers are used in ATMs and point of sale equipment as well as in smart technology devices such as tablets, mobile phones, laptops and Kindles. Touch screen controllers are also standard in the manufacturing and engineering industries where display screens act as control panels for machinery and specialised equipment.


Types of touch screen controllers

Touch screen controllers come in two types: capacitive and resistive.


Capacitive touch screen controllers are compatible with screen panels coated with indium tin dioxide. The film coating conducts a constant electrical current across a sensor to pick up on any change in electrical charge when the screen is touched.


Resistive touch screen controllers produce an electrically resistive layer. The changes in resistance on this layer are identified as touch events, which are picked up by the controller for processing of data. 


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Description Price Conversion Rate Resolution Interface Type Sensing Technology Sensing Wire Type Mounting Type Package Type Pin Count Typical Operating Supply Voltage Dimensions Length Width Height Maximum Operating Temperature
RS Stock No. 171-4086
Mfr. Part No.BU21023MUV-E2
BrandROHM
PHP155.095
Each (On a Reel of 2500)
units
- 10 bit - Resistive 4-Wire Surface Mount VQFN028V5050 28 3 V 5 x 5 x 0.98mm 5mm 5mm 0.98mm +85 °C
RS Stock No. 171-0926
Mfr. Part No.CY8C20110-LDX2I
PHP75.48
Each (In a Tray of 490)
units
- - Serial-I2C Capacitive 2-Wire Surface Mount QFN 16 2.4 → 5.25 V 3 x 3 x 0.55mm 3mm 3mm 0.55mm +85 °C
RS Stock No. 171-4088
Mfr. Part No.BU21027MUV-E2
BrandROHM
PHP74.778
Each (On a Reel of 2500)
units
- 12 bit Serial-I2C Resistive 4-Wire Surface Mount VQFN020V4040 20 3 V 4 x 4 x 0.98mm 4mm 4mm 0.98mm +85 °C
RS Stock No. 178-4886
Mfr. Part No.AR1011-I/SO
BrandMicrochip
PHP83.547
Each (In a Tube of 38)
units
140sps 10 bit UART Resistive 4-Wire, 5-Wire, 8-Wire Surface Mount SOIC 20 2.5 → 5.25 V 12.8 x 7.5 x 2.35mm 12.8mm 7.5mm 2.35mm +85 °C
RS Stock No. 171-0956
Mfr. Part No.CY8CMBR2044-24LKXI
PHP90.28
Each (In a Tray of 490)
units
- - UART Capacitive - Surface Mount QFN 16 1.71 → 5.5 V 3 x 3 x 0.55mm 3mm 3mm 0.55mm +85 °C
RS Stock No. 823-7730
Mfr. Part No.AR1011-I/SO
BrandMicrochip
PHP90.83
Each (In a Pack of 5)
units
140sps 10 bit UART Resistive 4-Wire, 5-Wire, 8-Wire Surface Mount SOIC 20 2.5 → 5.25 V 12.8 x 7.5 x 2.35mm 12.8mm 7.5mm 2.35mm +85 °C
RS Stock No. 177-1836
Mfr. Part No.AR1021-I/SO
BrandMicrochip
PHP95.61
Each (In a Pack of 5)
units
- 10 bit I2C, SPI Resistive 4-Wire, 5-Wire, 8-Wire Surface Mount SOIC 20 - 12.8 x 7.5 x 2.35mm 12.8mm 7.5mm 2.35mm +85 °C
RS Stock No. 177-3364
Mfr. Part No.AT42QT1010-MAHR
BrandMicrochip
PHP30.87
Each (In a Pack of 20)
units
- 14 bit Digital Output - - Surface Mount UDFN/USON 8 1.8 V 2.05 x 2 x 0.55mm 2.05mm 2mm 0.55mm +85 °C
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