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. 183-1838
Mfr. Part No.AD7843ARQZ
€1.38
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. 905-3176
Mfr. Part No.MTCH108-I/SS
BrandMicrochip
€0.834
Each (In a Pack of 10)
units
- - Simple I/O Capacitive - Surface Mount SSOP 20 2.05 to 3.6 V 7.5 x 5.6 x 1.85mm 7.5mm Touch Screen Controllers 5.6mm 1.85mm
RS Stock No. 185-1341
Mfr. Part No.BU21021GUL-E2
BrandROHM
€2.235
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. 743-4747
Mfr. Part No.AR1100-I/SS
BrandMicrochip
€1.845
Each (In a Pack of 2)
units
- 10 bit SPI Resistive 4-Wire, 5-Wire, 8-Wire Surface Mount SSOP 20 5 V 7.5 x 5.6 x 1.85mm 7.5mm Touch Screen Controllers 5.6mm 1.85mm
RS Stock No. 178-8813
Mfr. Part No.TSC2046IPW
€2.061
Each (In a Tube of 90)
units
- - - - - Surface Mount TSSOP 16 - 5 x 4.4 x 1.15mm 5mm Touch Screen Controllers 4.4mm 1.15mm
RS Stock No. 905-3167
Mfr. Part No.MTCH105-I/ST
BrandMicrochip
€0.755
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. 193-8496
Mfr. Part No.CY8CMBR3102-SX1IT
€0.571
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. 178-4997
Mfr. Part No.AR1021-I/SS
BrandMicrochip
€1.401
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
RS Stock No. 146-0306
Mfr. Part No.MTCH108-I/SS
BrandMicrochip
€0.736
Each (In a Tube of 67)
units
- - Simple I/O Capacitive - Surface Mount SSOP 20 2.05 to 3.6 V 7.5 x 5.6 x 1.85mm 7.5mm Touch Screen Controllers 5.6mm 1.85mm
RS Stock No. 194-9162
Mfr. Part No.CY8CMBR3106S-LQXI
€2.264
Each (In a Pack of 5)
units
- - - Capacitive 2-Wire Surface Mount QFN 24 1.71 to 5.5 V 4 x 4 x 0.55mm 4mm Touch Screen Controllers 4mm 0.55mm
RS Stock No. 920-1066
Mfr. Part No.CY8C20237-24LKXI
€2.512
Each (In a Tray of 490)
units
23.43ksps 8 bit Serial-I2C Capacitive 2-Wire Surface Mount QFN 16 1.71 → 5.5 V 3 x 3 x 0.55mm 3mm - 3mm 0.55mm
RS Stock No. 185-1344
Mfr. Part No.BU21024FV-ME2
BrandROHM
€3.165
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
RS Stock No. 497-2943
Mfr. Part No.AD7873ARUZ
€3.96
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. 193-8497
Mfr. Part No.CY8CMBR3102-SX1IT
€1.296
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. 905-3163
Mfr. Part No.MTCH102-I/MS
BrandMicrochip
€0.569
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. 125-4141
Mfr. Part No.CY8C20110-LDX2I
€2.376
Each (In a Pack of 5)
units
- - Serial-I2C Capacitive 2-Wire Surface Mount QFN 16 2.4 to 5.25 V 3 x 3 x 0.55mm 3mm Touch Screen Controllers 3mm 0.55mm
RS Stock No. 127-6595
Mfr. Part No.AT42QT1010-TSHR
BrandMicrochip
€0.515
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. 178-4886
Mfr. Part No.AR1011-I/SO
BrandMicrochip
€1.083
Each (In a Tube of 38)
units
140sps 10 bit UART Resistive 4-Wire, 5-Wire, 8-Wire Surface Mount SOIC 20 2.5 to 5.25 V 12.8 x 7.5 x 2.35mm 12.8mm Touch Screen Controllers 7.5mm 2.35mm
RS Stock No. 768-0767
Mfr. Part No.AR1011-I/SS
BrandMicrochip
€1.00
Each (In a Pack of 2)
units
140sps 10 bit UART 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
RS Stock No. 177-1439
Mfr. Part No.AR1021-I/SO
BrandMicrochip
€1.588
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