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. 738-4702
Mfr. Part No.QT60160-ISG
BrandAtmel
TWD92
Each
units
- 10 bit Serial-I2C Q Matrix - Surface Mount MLF 32 1.8 → 5 V 5 x 5 x 1mm 5mm 5mm 1mm +85 °C
RS Stock No. 768-0776
Mfr. Part No.AR1021-I/SS
BrandMicrochip
TWD74
Each (In a Pack of 2)
units
140sps 10 bit SPI Resistive 4-Wire, 5-Wire, 8-Wire Surface Mount SSOP 20 2.5 → 5 V 7.5 x 5.6 x 1.85mm 7.5mm 5.6mm 1.85mm +85 °C
RS Stock No. 738-0167
Mfr. Part No.AT42QT1070-SSU
BrandMicrochip
TWD58
Each (In a Pack of 2)
units
- - Serial-I2C - - Surface Mount SOIC 14 1.8 → 5.5 V 8.74 x 3.99 x 1.5mm 8.74mm 3.99mm 1.5mm +85 °C
RS Stock No. 162-4135
Mfr. Part No.ADS7843E
TWD136
Each (In a Tube of 75)
units
125ksps 12 bit - - - Surface Mount SSOP 16 - 5 x 4 x 1.5mm 5mm 4mm 1.5mm +85 °C
RS Stock No. 125-4201
Mfr. Part No.CY8CMBR2044-24LKXI
TWD91
Each (In a Pack of 5)
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. 738-0160
Mfr. Part No.AT42QT1110-AU
BrandMicrochip
TWD69
Each (In a Pack of 2)
units
- - SPI - - Surface Mount TQFP 32 3 → 5.5 V 7.1 x 7.1 x 1.05mm 7.1mm 7.1mm 1.05mm +85 °C
RS Stock No. 171-0956
Mfr. Part No.CY8CMBR2044-24LKXI
TWD57
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. 922-1219
Mfr. Part No.AT42QT1110-AU
BrandMicrochip
TWD39
Each (On a Reel of 2000)
units
- - SPI - - Surface Mount TQFP 32 3 → 5.5 V 7.1 x 7.1 x 1.05mm 7.1mm 7.1mm 1.05mm +85 °C
RS Stock No. 922-1228
Mfr. Part No.AT42QT1070-SSU
BrandMicrochip
TWD33
Each (On a Reel of 3000)
units
- - Serial-I2C - - Surface Mount SOIC 14 1.8 → 5.5 V 8.74 x 3.99 x 1.5mm 8.74mm 3.99mm 1.5mm +85 °C
RS Stock No. 378-1752
Mfr. Part No.ADS7843E
TWD117
Each
units
125ksps 12 bit - - - Surface Mount SSOP 16 - 5 x 4 x 1.5mm 5mm 4mm 1.5mm +85 °C
New
RS Stock No. 177-2764
Mfr. Part No.AT42QT1010-MAHR
TWD60,420
1 Reel of 3000
Reel(s)
- - - - - - - - - - - - - -
RS Stock No. 715-3902
Mfr. Part No.AT42QT1010-TSHR
BrandMicrochip
TWD35
Each
units
- 9 bit Serial Capacitive 2-Wire Surface Mount SOT-23 6 1.8 → 5.5 V 3 x 1.75 x 1.3mm 3mm 1.75mm 1.3mm +85 °C
RS Stock No. 125-4203
Mfr. Part No.CY8CTMG120-56LTXI
TWD261
Each
units
- - I2C Capacitive 2-Wire Surface Mount QFN 56 3 → 5.25 V 8.1 x 8.1 x 0.95mm 8.1mm 8.1mm 0.95mm +85 °C
RS Stock No. 715-3915
Mfr. Part No.AT42QT1012-TSHR
BrandMicrochip
TWD48
Each
units
- 9 bit Serial Capacitive 2-Wire Surface Mount SOT-23 6 1.8 → 5.5 V 3 x 1.75 x 1.3mm 3mm 1.75mm 1.3mm +85 °C
RS Stock No. 125-4141
Mfr. Part No.CY8C20110-LDX2I
TWD74
Each (In a Pack of 5)
units
- - 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
New
RS Stock No. 177-2765
Mfr. Part No.AT42QT1040-MMHR
TWD260,760
1 Reel of 6000
Reel(s)
- - - - - - - - - - - - - -
RS Stock No. 171-4183
Mfr. Part No.BU21028FV-ME2
BrandROHM
TWD73
Each (In a Pack of 2)
units
- 12 bit Serial-I2C Resistive 4-Wire Surface Mount SSOP 20 3 V 6.5 x 4.4 x 1.15mm 6.5mm 4.4mm 1.15mm +85 °C
RS Stock No. 709-2501
Mfr. Part No.ADS7845E
TWD280
Each
units
- - - - - Surface Mount SSOP 16 - 5 x 4 x 1.5mm 5mm 4mm 1.5mm +85 °C
RS Stock No. 715-3906
Mfr. Part No.AT42QT1011-TSHR
BrandMicrochip
TWD41
Each
units
- 14 bit - Spread-Spectrum Charge-Transfer - Surface Mount SOT-23 6 1.8 → 5.5 V 3 x 1.75 x 1.3mm 3mm 1.75mm 1.3mm +85 °C
New
RS Stock No. 177-0899
Mfr. Part No.MTCH108-I/GZ
TWD43
Each (In a Pack of 10)
units
- - - Capacitive - Surface Mount UQFN 20 3.6 (Maximum) V 4 x 4 x 0.5mm 4mm 4mm 0.5mm +85 °C