Through unique patented technology a cost effective solution is offered to replace conventional electromechanical switches. ProxSenseTM is capable of detecting a differentiated touch or proximity condition through almost any dielectric, allowing designers to project touch pads or sliders through a variety of materials. A TOUCH pad can be realised with a simple copper pour on a PCB.
ProxSenseTM offers a portfolio of multi-channel capacitive sensing ICs. The multi-channel ICs can operate standalone or can be interfaced with a micro controller unit (MCU). Multiple channel ICs can be used to realise keypads / products requiring multiple buttons, sliders and scroll-wheels. The devices also feature an internal system regulator, ensuring class leading proximity sensitivity and stability at an unparalleled cost.
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IQS222 - I2CTM compatible Wheel/Slider and Key Controller with Proximity Detection
The IQS222 offers industry leading resolution (11bit) for a wheel or slider controller. The IQS222 is an 8 channel capacitive sensing device, 3 of which can be used for a wheel or slider type interface combined with 5 discrete keys. Interface to a master controller is through an I2CTM compatible interface.
| Function: |
8 keys OR wheel/slider + 5 keys
with proximity detection
I2CTM host interface |
| Package: |
SO-20, QFN(4x4)-20 |
| Current Consumption: |
21uA (Low power mode, no comms)
164uA (Typical Full power mode)
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| Status: |
Released |
 
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IQS240 - 4 Touch Channel and Proximity Capacitive Sensor
The IQS240 has 4 physical contact channels. The IC features direct, coded and SPI output modes, 4 Power modes, high power noise immunity, buzzer output, a variety of touch and proximity sensitivity settings and many more.
| Function: |
4 Touch and Proximity Sensor |
| Package: |
SO-20, QFN(4x4)-20 |
| Current Consumption: |
27uA |
| Status: |
Released |
 
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IQS221 - 9 Touch Channel and Proximity Capacitive Sensor
The IQS221 has the same features as the IQS240 with an additional 5 channels adding up to 9 physical contact channels. The IC also features direct, coded and SPI output modes, 4 Power modes, high power noise immunity, buzzer output, a variety of touch and proximity sensitivity settings and an active drive
n shield, which enables the designer to place a pr oximity sensing channel remotely from the electornics.
| Function: |
9 Touch and Proximity Sensor |
| Package: |
SO-32, QFN(5x5)-32 |
| Current Consumption: |
27uA |
| Status: |
Released |
 
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