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. 905-3163
Mfr. Part No.MTCH102-I/MS
BrandMicrochip
HK$5.644
Each (In a Pack of 10)
units
- - Simple I/O Capacitive - Surface Mount MSOP 8 2.05 to 3.6 V 3 x 3 x 0.95mm 3mm Touch Screen Controllers 3mm 0.95mm
RS Stock No. 193-8493
Mfr. Part No.CY8CMBR3002-SX1IT
HK$4.774
Each (On a Reel of 2500)
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. 177-1439
Mfr. Part No.AR1021-I/SO
BrandMicrochip
HK$15.687
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. 660-7571
Mfr. Part No.ADS7846E
HK$40.72
Each
units
125ksps 12 bit - - - Surface Mount SSOP 16 - 5 x 4 x 1.5mm 5mm Touch Screen Controllers 4mm 1.5mm
RS Stock No. 715-3915
Mfr. Part No.AT42QT1012-TSHR
BrandMicrochip
HK$5.11
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 Touch Screen Controllers 1.75mm 1.3mm
RS Stock No. 709-6815
Mfr. Part No.AD7843ARUZ
HK$27.06
Each
units
125ksps 12 bit - - - Surface Mount TSSOP 16 - 5 x 4.4 x 1.05mm 5mm Touch Screen Digitisers 4.4mm 1.05mm
RS Stock No. 193-8494
Mfr. Part No.CY8CMBR3002-SX1IT
HK$9.249
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. 133-1746
Mfr. Part No.QT60168-ASG
BrandMicrochip
HK$47.68
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. 905-3167
Mfr. Part No.MTCH105-I/ST
BrandMicrochip
HK$7.488
Each (In a Pack of 10)
units
- - Simple I/O Capacitive - Surface Mount TSSOP 14 2.05 to 3.6 V 5.1 x 4.5 x 1.05mm 5.1mm Touch Screen Controllers 4.5mm 1.05mm
RS Stock No. 127-6604
Mfr. Part No.AT42QT2120-XU
BrandMicrochip
HK$12.432
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. 127-6600
Mfr. Part No.AT42QT1070-SSUR
BrandMicrochip
HK$8.55
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. 185-1351
Mfr. Part No.BU21029GUL-E2
BrandROHM
HK$18.416
Each (In a Pack of 5)
units
- 12 bit - Resistive 2-Wire Surface Mount VCSP50L2 50 3 V 2 x 2 x 0.55mm 2mm Touch Screen Controllers 2mm 0.55mm
RS Stock No. 185-1261
Mfr. Part No.BU21024FV-ME2
BrandROHM
HK$19.961
Each (On a Reel of 2000)
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
RS Stock No. 127-6595
Mfr. Part No.AT42QT1010-TSHR
BrandMicrochip
HK$5.109
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. 188-5351
Mfr. Part No.CY8C20110-SX2I
HK$20.538
Each (In a Tube of 48)
units
- - Serial-I2C Capacitive 2-Wire Surface Mount SOIC 16 5.25 (Maximum) V 9.98 x 3.98 x 1.48mm 9.98mm Touch Screen Controllers 3.98mm 1.48mm
RS Stock No. 194-9157
Mfr. Part No.CY8CMBR2016-24LQXI
HK$22.918
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. 125-4144
Mfr. Part No.CY8C20121-SX1I
HK$19.35
Each (In a Pack of 5)
units
- - Serial-I2C Capacitive 2-Wire Surface Mount SOIC 8 2.4 to 5.25 V 4.97 x 3.98 x 1.48mm 4.97mm Touch Screen Controllers 3.98mm 1.48mm
RS Stock No. 145-9032
Mfr. Part No.MTCH6102-I/SS
BrandMicrochip
HK$11.196
Each (In a Tube of 47)
units
- - - - - Surface Mount SSOP 28 - 10.5 x 5.6 x 1.85mm 10.5mm Touch Screen Controllers 5.6mm 1.85mm
RS Stock No. 125-4201
Mfr. Part No.CY8CMBR2044-24LKXI
HK$25.74
Each (In a Pack of 5)
units
- - UART Capacitive - Surface Mount QFN 16 1.71 to 5.5 V 3 x 3 x 0.55mm 3mm Touch Screen Controllers 3mm 0.55mm
RS Stock No. 178-4997
Mfr. Part No.AR1021-I/SS
BrandMicrochip
HK$14.369
Each (In a Tube of 67)
units
140sps 10 bit SPI Resistive 4-Wire, 5-Wire, 8-Wire Surface Mount SSOP 20 2.5 to 5 V 7.5 x 5.6 x 1.85mm 7.5mm Touch Screen Controllers 5.6mm 1.85mm