ADS7843
- 4-WIRE TOUCH SCREEN INTERFACE
- RATIOMETRIC CONVERSION
- SINGLE SUPPLY: 2.7V to 5V
- UP TO 125kHz CONVERSION RATE
- SERIAL INTERFACE
- PROGRAMMABLE 8-OR 12-BIT RESOLUTION
- 2 AUXILIARY ANALOG INPUTS
- FULL POWER-DOWN CONTROL
- APPLICATIONS
- PERSONAL DIGITAL ASSISTANTS
- PORTABLE INSTRUMENTS
- POINT-OF-SALES TERMINALS
- PAGERS
- TOUCH SCREEN MONITORS
US Patent No. 6246394
The ADS7843 is a 12-bit sampling Analog-to-Digital Converter (ADC) with a synchronous serial interface and low on-resistance switches for driving touch screens. Typical power dissipation is 750uW at a 125kHz throughput rate and a +2.7V supply. The reference voltage (VREF) can be varied between 1V and +VCC, providing a corresponding input voltage range of 0V to VREF. The device includes a shutdown mode which reduces typical power dissipation to under 0.5uW. The ADS7843 is specified down to 2.7V operation.
Low power, high speed, and onboard switches make the ADS7843 ideal for battery-operated systems such as personal digital assistants with resistive touch screens and other portable equipment. The ADS7843 is available in an SSOP-16 package and is specified over the 40°C to +85°C temperature range.
技術資料
| 種類 | タイトル | 最新の英語版をダウンロード | 日付 | |||
|---|---|---|---|---|---|---|
| * | データシート | ADS7843: Touch Screen Controller データシート (Rev. B) | 2002年 3月 26日 |
購入と品質
- RoHS
- REACH
- デバイスのマーキング
- リード端子の仕上げ / ボールの原材料
- MSL 定格 / ピーク リフロー
- MTBF/FIT 推定値
- 使用原材料
- 認定試験結果
- 継続的な信頼性モニタ試験結果
- ファブの拠点
- 組み立てを実施した拠点