QT240
Key Features
- can lead to entirely new product concepts , adding high value to product designs
- Two speeds are supported, one of which consumes on ly 90µA of typical current at 4V
- Unique among capacitance sensors, the device incorporates spread spectrum modulation for unsurpassed EMC pliance
- This pin doubles as a drive pin for spread-spectrum modulation
- Option pins are provided which allow different timing and feature settings
- Only a single low cost capacitor per channel is required for operation
- Figures 1-1 and 1-2 show basic circuits for these device s
- See Table 1-1 for device pin listings
- The devices employ bursts of charge-transfer cycles to acquire signals
- The QT switches and charge measurement hardware functions are all internal to the device
Applications
- 400C to +850C
