Features: ·12-bit SAR type A/D Converter with S/H circuit·Low Voltage Operation (2.5V ∼ 3.6V)·I2C bus I/F Supports (Standard mode 100 KHz, Fast mode 400 KHz)·4-wire resistive touch screen Interface·Pen Pressure Measurement·Auto Power Down·Continuous Read Operation·Low Power Consumption (91&m...
AK4183: Features: ·12-bit SAR type A/D Converter with S/H circuit·Low Voltage Operation (2.5V ∼ 3.6V)·I2C bus I/F Supports (Standard mode 100 KHz, Fast mode 400 KHz)·4-wire resistive touch screen Inte...
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Parameter | Symbol | Min | max | Units |
Power Supplies | VCC | -0.3 | 6.0 | V |
Input Current (any pins except for supplies) | IIN | - | ±10 | mA |
Input Voltage | VIN | -0.3 | 6.0(VCC+0.3) | V |
Touch Panel Drive Current | IOUTDRV | 50 | mA | |
Ambient Temperature (power supplied) | Ta | -40 | 85 | |
Storage Temperature | Tstg | -65 | 150 |
The AK4183 is a 4-wire resistive touch screen controller that incorporates SAR type A/D converter. It operates down to 2.5V supply voltage in order to connect a low voltage drive processor. The AK4183 can detect the pressed screen location by performing two A/D conversions. In addition to location, the product also measures touch pressure. As the package size of 10 pin TMSOP is 4.0mm x 2.9mm this is much smaller than QFN and BGA package. It is the best fit for cellular phone, PDA, or other portable devices.