Touch Screen Sensor ICs

Touch screen sensor ICs (integrated circuits) also known as touch screen controllers are types of semiconductor devices that convert user actions on a screen to signals that can be read by a device. They have been designed to detect the input of the touch sensor built on the LCD. Touch screen controllers are considered the standard in the manufacturing and engineering industries where display screens act as control panels for machinery and specialised equipment.

How does a touch screen sensor IC work?

Touch screen sensor ICs 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. Some types of these ICs can also have a pen stylus interrupt input. This feature adds the benefit of low power mode by only operating the touchscreen when the stylus pen is being utilised.

Types of touch screen sensor ICs

Touch screen sensor ICs are available in different types such as;

Capacitive touch screen controllers – These ICs designed to be 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 – these ICs 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 the processing of data.

Both capacitive and resistive touchscreen devices have a digitised. The touch screen digitiser is an IC that’s designed to convert analogue touch comments into digital signals.

These type of ICs are also offered with a range of different interface types such as UART(Universal asynchronous receiver-transmitter), serial, SPI (Serial Peripheral Interface) and Serial SPI. They are also offered with a variety of a number of pins constructed on the IC itself.

Applications of touch screen sensor ICs

Touch screen sensor ICs are widely used in a variety of applications such;

  • Mobile phones
  • Touch screen monitors
  • Tablet devices
  • Point-of-sale terminals
  • ATM machines

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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 Sensor Type Width Height
RS Stock No. 497-2943
Mfr. Part No.AD7873ARUZ
£3.57
Each
Units
125ksps 12 bit - - - Surface Mount TSSOP 16 - 5 x 4.4 x 1.65mm 5mm Touch Screen Digitisers 4.4mm 1.65mm
RS Stock No. 127-6595
Mfr. Part No.AT42QT1010-TSHR
BrandMicrochip
£0.464
Each (In a Pack of 10)
Units
- 14 bit Digital Output Spread-Spectrum Charge-Transfer - Surface Mount SOT-23 6 1.8 to 5.5 V 2.05 x 2 x 0.55mm 2.05mm Touch Screen Controllers 2mm 0.55mm
RS Stock No. 193-8497
Mfr. Part No.CY8CMBR3102-SX1IT
£1.168
Each (In a Pack of 5)
Units
- - I2C Capacitive 2-Wire Surface Mount SOIC 8 1.8 V 4.97 x 3.98 x 1.47mm 4.97mm Touch Screen Controllers 3.98mm 1.47mm
RS Stock No. 185-1344
Mfr. Part No.BU21024FV-ME2
BrandROHM
£2.85
Each (In a Pack of 2)
Units
- 10 bit - Resistive - Surface Mount SSOP-B 28 3 V 10.35 x 5.6 x 1.15mm 10.35mm Touch Screen Controllers 5.6mm 1.15mm
New
RS Stock No. 215-5777
Mfr. Part No.CY8CMBR3108-LQXIT
£1.574
Each (In a Pack of 5)
Units
- 7 bit I2C Capacitive 2-Wire - QFN 16 - - - - - -
RS Stock No. 133-1747
Mfr. Part No.QT60240-ISG
BrandMicrochip
£1.92
Each (In a Pack of 2)
Units
- 10 bit I2C, Serial-SPI Spread-Spectrum Charge-Transfer Hard-Wire Surface Mount MLF 32 1.8 to 5.25 V 5 x 5 x 0.95mm 5mm Touch Screen Controllers 5mm 0.95mm
RS Stock No. 177-1439
Mfr. Part No.AR1021-I/SO
BrandMicrochip
£1.431
Each (In a Tube of 38)
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 Touch Screen Controllers 7.5mm 2.35mm
RS Stock No. 127-6600
Mfr. Part No.AT42QT1070-SSUR
BrandMicrochip
£0.778
Each (In a Pack of 5)
Units
- - Serial-I2C Spread-Spectrum Charge-Transfer - Surface Mount SOIC 14 1.8 to 5.5 V 8.748 x 3.998 x 1.499mm 8.748mm Touch Screen Controllers 3.998mm 1.499mm
RS Stock No. 183-1838
Mfr. Part No.AD7843ARQZ
£1.244
Each (In a Pack of 5)
Units
125ksps 12 bit - - - Surface Mount QSOP 16 Single 5 x 4.01 x 1.65mm 5mm Touch Screen Digitisers 4.01mm 1.65mm
RS Stock No. 194-9157
Mfr. Part No.CY8CMBR2016-24LQXI
£1.979
Each (In a Tray of 490)
Units
- - - Capacitive - Surface Mount QFN 48 1.71 to 5.5 V 6 x 6 x 0.55mm 6mm Touch Screen Controllers 6mm 0.55mm
RS Stock No. 194-9159
Mfr. Part No.CY8CMBR3002-SX1I
£0.703
Each (In a Tube of 97)
Units
- - - Capacitive 2-Wire Surface Mount SOIC 8 1.71 to 5.5 V 4.97 x 3.98 x 1.47mm 4.97mm Touch Screen Controllers 3.98mm 1.47mm
RS Stock No. 185-1347
Mfr. Part No.BU21026MUV-E2
BrandROHM
£1.076
Each (In a Pack of 5)
Units
- 12 bit - Resistive 2-Wire Surface Mount VQFN020V4040 20 3 V 4 x 4 x 1mm 4mm Touch Screen Controllers 4mm 1mm
RS Stock No. 185-1341
Mfr. Part No.BU21021GUL-E2
BrandROHM
£2.03
Each (In a Pack of 2)
Units
- 12 bit - Resistive - Surface Mount VCSP50L2 50 3 V 2.7 x 2.65 x 0.55mm 2.7mm Touch Screen Controllers 2.65mm 0.55mm
RS Stock No. 127-6604
Mfr. Part No.AT42QT2120-XU
BrandMicrochip
£1.112
Each (In a Pack of 5)
Units
- - Serial-I2C Spread-Spectrum Charge-Transfer - Surface Mount TSSOP 20 1.8 to 5.5 V 6.5 x 4.5 x 1.05mm 6.5mm Touch Screen Controllers 4.5mm 1.05mm
RS Stock No. 125-4142
Mfr. Part No.CY8C20110-SX2I
£2.132
Each (In a Pack of 5)
Units
- - Serial-I2C Capacitive 2-Wire Surface Mount SOIC 16 2.4 to 5.25 V 9.98 x 3.98 x 1.48mm 9.98mm Touch Screen Controllers 3.98mm 1.48mm
RS Stock No. 193-8494
Mfr. Part No.CY8CMBR3002-SX1IT
£0.824
Each (In a Pack of 10)
Units
- - I2C Capacitive 2-Wire Surface Mount SOIC 8 1.8 V 4.97 x 3.98 x 1.47mm 4.97mm Touch Screen Controllers 3.98mm 1.47mm
RS Stock No. 177-1836
Mfr. Part No.AR1021-I/SO
BrandMicrochip
£1.48
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 Touch Screen Controllers 7.5mm 2.35mm
RS Stock No. 177-2764
Mfr. Part No.AT42QT1010-MAHR
BrandMicrochip
£0.352
Each (On a Reel of 3000)
Units
- 14 bit Digital Output - - Surface Mount UDFN/USON 8 1.8 V 2.05 x 2 x 0.55mm 2.05mm Touch Screen Controllers 2mm 0.55mm
RS Stock No. 133-1746
Mfr. Part No.QT60168-ASG
BrandMicrochip
£4.33
Each
Units
- 11 bit SPI Spread-Spectrum Charge-Transfer Hard-Wire Surface Mount TQFP 32 3 to 5.25 V 7.1 x 7.1 x 1.05mm 7.1mm Touch Screen Controllers 7.1mm 1.05mm
RS Stock No. 194-9158
Mfr. Part No.CY8CMBR2016-24LQXI
£3.17
Each (In a Pack of 2)
Units
- - - Capacitive - Surface Mount QFN 48 1.71 to 5.5 V 6 x 6 x 0.55mm 6mm Touch Screen Controllers 6mm 0.55mm