AT42QT1050-MMHR
Active5 CHANNEL QTOUCH ADC I2C TOUCH SENSOR IC 20 VQFN 3X3X0.85MM T/R ROHS COMPLIANT: YES
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AT42QT1050-MMHR
Active5 CHANNEL QTOUCH ADC I2C TOUCH SENSOR IC 20 VQFN 3X3X0.85MM T/R ROHS COMPLIANT: YES
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Technical Specifications
Parameters and characteristics for this part
| Specification | AT42QT1050-MMHR |
|---|---|
| Interface | I2C |
| Mounting Type | Surface Mount |
| Number of Inputs | 5 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 20-VFQFN Exposed Pad |
| Proximity Detection | True |
| Supplier Device Package | 20-VQFN (3x3) |
| Type | Buttons |
| Voltage - Supply [Max] | 5.5 V |
| Voltage - Supply [Min] | 1.8 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 1.42 | |
| 25 | $ 1.31 | |||
| 100 | $ 1.20 | |||
| Digi-Reel® | 1 | $ 1.42 | ||
| 25 | $ 1.31 | |||
| 100 | $ 1.20 | |||
| Tape & Reel (TR) | 6000 | $ 1.20 | ||
| Microchip Direct | T/R | 1 | $ 1.42 | |
| 25 | $ 1.31 | |||
| 100 | $ 1.20 | |||
| 1000 | $ 1.08 | |||
| 5000 | $ 1.04 | |||
| Newark | Each (Supplied on Full Reel) | 100 | $ 1.24 | |
Description
General part information
AT42QT1050 Series
The Atmel(R) AT42QT1050 is a QTouchADC(TM) sensor driver. The device can sense from one to five keys, dependent on mode. The QT1050 includes all signal processing functions necessary to provide stable sensing under a wide variety of changing conditions, and the outputs are fully debounced. Only a few external parts are required for operation and no external Cs capacitors are required. The QT1050 modulates its bursts in a spread-spectrum fashion in order to heavily suppress the effects of external noise, and to suppress RF emissions. The QT1050 uses a QTouchADC method of acquisition. This provides greater noise immunity and eliminates the need for external sampling capacitors, allowing touch sensing using a single pin.
Documents
Technical documentation and resources
