AD7142ACPZ

Programmable Capacitance-to-Digital Converter with Environmental Compensation

Rated 5 Rating 5 | reviews | Write a review

Price:: US $2.00~5.00 / piece [Get Latest Price]

Reference price:

Qty (lots)	Price/lot
1 ~ 10 :	5.00 / Piece
50 ~ 100 :	3.00 / Piece
200 ~ 500 :	2.00 / Piece

PartNumber:: AD7142ACPZ

Brand:: Analog Devices - ADI | Pack: QFN | D/C: 07+

Availability:: Supply Ability: 500/Day Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

Quantity:: piece

Total Price:: US $0

Place Order via Escrow Service

Not exactly what you want? Post a quick Buying Request!

Sold By

Ms. Kaisy's store

(China (Mainland))

100% Positive feedback

Detailed seller ratings

Visit Store

Contact Now

Esrcow Service

Place orders confidently and securely via it

Safe payments
Quick and easy transactions
Free service charges

Learn More >>

Previous Next

Products Upload time: 2013-01-23

From Other Seller

Part Number:AD7142ACPZ
US $2.00 - 5.00
Quantity:

piece

Product Summary

The AD7142 and AD7142-1 are integrated capacitance-todigital converters (CDCs) with on-chip environmental calibration for use in systems requiring a novel user input
method. The AD7142 and AD7142-1 can interface to external capacitance sensors implementing functions such as capacitive buttons, scroll bars, or wheels.

Parametrics

ABSOLUTE MAXIMUM RATINGS:

(1)AVCC to AGND, DVCC to DGND:-0.3 V to +3.6 V ;

(2)Analog Input Voltage to AGND:-0.3 V to AVCC + 0.3 V ;

(3)Digital Input Voltage to DGND:-0.3 V to VDRIVE + 0.3 V ;

(4)Digital Output Voltage to DGND:-0.3 V to VDRIVE + 0.3 V ;

(5)Input Current to Any Pin Except Supplies:10 mA ;

(6)ESD Rating (Human Body Model):2.5 kV ;

(7)Operating Temperature Range:-40℃ to +150℃ ;

(8)Storage Temperature Range:-65℃ to +150℃ ;

(9)Junction Temperature:150℃;

(10)LFCSP_VQ :Power Dissipation, 450 mW ;θJA Thermal Impedance,135.7℃/W ;

(11)IR Reflow Peak Temperature:260℃ (±0.5℃) ;

(12)Lead Temperature (Soldering 10 sec):300℃

Features

1.Programmable capacitance-to-digital converter
36 ms update rate (@ maximum sequence length)
Better than 1 fF resolution
14 capacitance sensor input channels
No external RC tuning components required
Automatic conversion sequencer
2.On-chip automatic calibration logic
Automatic compensation for environmental changes
Automatic adaptive threshold and sensitivity levels
3.On-chip RAM to store calibration data
4.SPI-compatible serial interface (AD7142)
5.I2C-compatible serial interface (AD7142-1)
6.Separate Vdriver level for serial interface
7.Interrupt output and GPIO
8.32-lead, 5 mm x 5 mm LFCSP_VQ
9.2.6 V to 3.6 V supply voltage
10.Low operating current:Full power mode: less than 1 mA;Low power mode: 50 μA