Low Voltage Capacitive Sensor Signal Conditioner with Digital Output
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概要
説明
The ZSSC3122 cLite™ is a CMOS integrated circuit for accurate capacitance-to-digital conversion and sensor-specific correction of capacitive sensor signals. Digital compensation of sensor offset, sensitivity and temperature drift is accomplished via an internal digital signal processor running a correction algorithm with calibration coefficients stored in a non-volatile EEPROM. The ZSSC3122 is configurable for capacitive sensors with capacitances up to 10pF and a sensitivity of 125aF/LSB. It is compatible with both single capacitive sensors (both terminals must be accessible) and differential capacitive sensors. Measured and corrected sensor values can be output as I2C, SPI, PDM, or alarms. The I2C interface can be used for a simple PC-controlled calibration procedure to program a set of calibration coefficients into an on-chip EEPROM. The calibrated ZSSC3122 and a specific sensor are mated digitally: fast, precise, and without the cost overhead of trimming by external devices or laser.
特長
- Maximum target input capacitance: 10pF
- Sampling rates as fast as 0.7ms @ 8-bit, 1.6ms @ 10-bit, 5.0ms @ 12-bit, 18.5ms @ 14-bit
- Digital compensation of sensor: piece-wise 1st and 2nd order sensor compensation or up to 3rd order single-region sensor compensation
- Digital compensation of 1st and 2nd order temperature gain and offset drift
- Internal temperature compensation reference (no external components)
- Programmable capacitance span and offset
- Layout customized for die-die bonding with sensor for low-cost, high-density chip-on-board assembly
- Accuracy as high as ±0.25% full-scale output @ -20 to 125°C, 3V, 5V, Vsupply ±10% (see data sheet for restrictions)
アプリケーション
ドキュメント
| Document title | Document type
|
日付 日付 | |
|---|---|---|---|
| PDF 1.60 MB | データシート | ||
| PDF 455 KB | アプリケーションノート | ||
| PDF 209 KB | アプリケーションノート | ||
| PDF 405 KB | データシート－簡略版 | ||
| 7Z 1.21 MB | ガイド | ||
| PDF 777 KB | マニュアル－開発ツール | ||
| PDF 1.23 MB 英語 | 概要 | ||
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設計・開発
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Evaluation Kit for ZSSC3122 and ZSSC3123
The ZSSC3122-3123KIT SSC Evaluation Kit contains the hardware needed for configuration, calibration and evaluation of the ZSSC3122 and ZSSC3123 capacitive sensor signal...
Mass Calibration System for ZSSC3122
The ZSSC3122 Mass Calibration System provides the hardware needed for simultaneous configuration, calibration and evaluation of multiple ZSSC3122 Capacitive Sensor...
モデル
ECADモデル
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製品選択
Processing table
Pkg. Type |
Lead Count (#) |
Temp. Range |
Carrier Type |
ご購入 / サンプル |
|
|---|---|---|---|---|---|
| 型名 | |||||
| WAFER | 0 | -20 to 125°C | Wafer | ||
| WAFER | 0 | -20 to 125°C | Wafer | ||
| TSSOP | 14 | -20 to 125°C | Reel | ||
| TSSOP | 14 | -20 to 125°C | Tube | ||
| WAFER | 0 | -20 to 125°C | Wafer | ||
| WAFER | 0 | -20 to 85°C | Wafer | ||
| WAFER | 0 | -20 to 85°C | Wafer | ||
| TSSOP | 14 | -20 to 85°C | Reel | ||
| TSSOP | 14 | -20 to 85°C | Tube | ||
| WAFER | 0 | -20 to 85°C | Wafer |
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play_circle_filledビデオ&トレーニング
IDT Sensor Signal Conditioner (SSC) Evaluation Kit Overview
A brief introduction and overview of IDT's sensor signal conditioner evaluation kits. Evaluation kits generally consist of three parts: a communication interface board, a device board, and a sensor simulator board - all connected together. A sophisticated software GUI accompanies the kit, enabling an engineer to learn how to use the part rapidly, do quick prototyping, and practice calibrations.
Presented by David Grice, applications engineer at IDT. For more information about IDT's sensor signal conditioner products, visit https://www.idt.com/ssc
Video List