Data Sheets   Rev 0, 01/2007 (pdf, 1021K) Email PDF      Lead(Pb) - Free Data (Data Sheet Help)     Application Notes Evaluation Boards html(1k) Price, Packaging, and Availability

	Product Description
	The AD7143 is an integrated capacitance-to-digital converter (CDC) with on-chip environmental calibration for use in systems requiring a novel user input method. The AD7143 interfaces to external...More
Visit our detailed system design support and FAQ page. View our Touch Control Demo. AD7142 web seminar: Design and Develop Innovative and Robust Touch Sensor Interfaces Using Capacitive-to-Digital Converters.

Specifications Resolution (Bits) 16bit T-Put Rate 43.5SPS # Chan 8 Supply V Single(+2.6 to +3.6) Pwr Diss (max) 3.6mW Sleep Pwr Diss 14.9µW Ain Range ± 2 pF (Delta C) Ref Int/Ext Int Product Description CAPTouch (TM) Programmable Controller for 2-Electrode Capacitance Sensor with I2C Interface Find Similar Products

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Features Programmable capacitance-to-digital converter 25 ms update rate (@ maximum sequence length) Better than 1 fF resolution 8 capacitance sensor input channels No external RC tuning components required Automatic conversion sequencer On-chip automatic calibration logic Automatic compensation for environmental changes Automatic adaptive threshold and sensitivity levels On-chip RAM to store calibration data I2C®-compatible serial interface Separate VDRIVE level for serial interface Interrupt output for host controller 16-lead, 4 mm x 4 mm LFCSP-VQ 2.6 V to 3.6 V supply voltage Low operating current Full power mode: less than 1 mA Low power mode: 50 µA

 

 

Price, Packaging, and Availability Print Table AD7143 Model Options Model Status Package Pins Temp Range Price* (1000 pcs.) Available RoHS Compliant Samples Cart Purchase Cart AD7143ACPZ-1500RL7 Prodn 16 ld LFCSP (4x4mm, 2.50mm exposed pad) 16 Ind $1.24 6/27/2008 Y Material Declaration Add to Cart Add to Cart AD7143ACPZ-1REEL Prodn 16 ld LFCSP (4x4mm, 2.50mm exposed pad) 16 Ind $1.24 5/23/2008 Y Material Declaration Contact ADI Contact ADI EVAL-AD7143-1EBZ Prodn EVALUATION BOARDS - TBD $175.00 5/23/2008 Y Contact ADI Add to Cart The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing. View Sales and Distribution Offices

 

 

Find Similar Products     Part# Resolution (Bits) T-Put Rate # Chan Supply V Pwr Diss (max) Input Base C (pF Max) Cin Range (pF) Pkg Type Price* (1000 pcs.) AD7151 12 100SPS 1 Single(+2.7 to +3.6) 0.3mW 10 ±4 SOP $1.35 AD7150 12 100SPS 2 Single(+2.7 to +3.6) 0.43mW 10 ±4 SOP $1.35 AD7143 16 43.5SPS 8 Single(+2.6 to +3.6) 3.6mW 20 ±2 CSP $1.24 AD7147 16 111SPS 13 Single(+3); Single(+3.3) 3.6mW 20 ±8 CSP $1.30 AD7142 16 27.8SPS 14 Single(+2.6 to +3.6); Single(+2.7); Single(+3); Single(+3.3) 3.6mW 20 ±2 CSP $1.35 AD7745 24 90SPS 1 Single(+2.7 to +5.25) 4.25mW 17 ±4 SOP $4.60 AD7747 24 45.5SPS 1 Single(+2.7 to +5.25) 4.25mW 17 ±8 SOP $4.60 AD7746 24 90SPS 2 Single(+2.7 to +5.25) 4.25mW 17 ±4 SOP $4.95 * The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing. ** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information. Sorted by Resolution (Ascending), then # of Input Channels (Ascending)