16-button Inductive Keypad Reference Design Using the LDC1314 Inductance-to-Digital Converter
Description
The LDC1314's unique inductive sensing capability is used to implement a contactless: 16 button: multi-function keypad. It uses standard PCB technology and easily manufactured components to implement a low cost solution.This reference design uses the LDC1314. This reference design can also be used with LDC1312: LDC1612 and LDC1614.
Features
- Contactless buttons: with superior reliability over electrical/mechanical contact solutionsCan be easily used to implement ruggedized: environmentally sealed keypad and keyboard solutions for harsh environmentsSupports simultaneous button pressesTemperature stableEasily scalable to larger key arrays
Applications
- Clinical pulse oximeter
- Video recorder
- CPAP machine
- Currency counter
- Flat panel
- Calling button operating panel
- Intrusion HMI panel
- Portable data terminal
- HVAC gateway
- Thermostat
- CPU (PLC Controller)
- Wearable fitness & activity monitor
- Portable POS
- Pachinko machine
- Lab & field Instrumentation
- Intrusion control panel
- POS card reader
- POS printer
- Key panel
- Multifunction relay
- Appliances: battery charger
- Power analyzer
- Programmable DC power supply
- Robotic lawn mower
- Building security gateway
- Professional video camera
- Eye
- ear
- nose & throat exam
- Mother & neonatal care monitor
- Processor module
- Compact relay
Product Categories
- Sensors
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Test Data
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Download the test file for TIDA-00509| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| TIDA-00509 Gerber (MCU) | 24 Apr 2015 | ZIP | 109 | |
| TIDA-00509 Gerber (Keypad) | 24 Apr 2015 | ZIP | 77 | |
| TIDA-00509 CAD Files (MCU) | 24 Apr 2015 | ZIP | 138 | |
| TIDA-00509 CAD Files (Keypad) | 24 Apr 2015 | ZIP | 220 | |
| TIDA-00509 PCB (MCU) | 24 Apr 2015 | 275 | ||
| TIDA-00509 PCB (Keypad) | 24 Apr 2015 | 326 | ||
| TIDA-00509 Assembly Drawing (MCU) | 24 Apr 2015 | 293 | ||
| TIDA-00509 Assembly Drawing (Keypad) | 24 Apr 2015 | 74 | ||
| TIDA-00509 BOM (MCU) | 24 Apr 2015 | 207 | ||
| TIDA-00509 BOM (Keypad) | 24 Apr 2015 | 31 | ||
| TIDA-00509 Schematic (MCU) | 24 Apr 2015 | 38 | ||
| TIDA-00509 Schematic (Keypad) | 24 Apr 2015 | 60 |