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ZSSC3122 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Low Voltage Capacitive Sensor Signal Conditioner - Zentrum Mikroelektronik Dresden

भाग संख्या ZSSC3122
समारोह Low Voltage Capacitive Sensor Signal Conditioner
मैन्युफैक्चरर्स Zentrum Mikroelektronik Dresden 
लोगो Zentrum Mikroelektronik Dresden लोगो 
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ZSSC3122 pdf
ZSSC3122
cLite™ Low Voltage Capacitive Sensor Signal Conditioner
Brief Description
The ZSSC3122 cLite™ is a CMOS integrated circuit
for accurate capacitance-to-digital conversion and
sensor-specific correction of capacitive sensor sig-
nals. Digital compensation of sensor offset, sensiti-
vity 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 sen-
sors with capacitances up to 10pF and a sensitivity
of 125aF/LSB. It is compatible with both single capa-
citive 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.
Features
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% FSO@ -40 to 125°C, 3V, 5V, Vsupply ±10%
Benefits
Minimized calibration costs: no laser trimming,
one-pass calibration using a digital interface
Excellent for low-power battery applications
Interfaces
I²C™ or SPI interface—easy connection to a µC
PDM outputs (Filtered Analog Ratiometric) for
both capacitance and temperature
Up to two alarms that can act as full push-pull or
open-drain switches
Physical Characteristics
Supply voltage: 1.8 to 5.5V
Typical current consumption 650μA down to
60μA depending on configuration
Typical Sleep Mode current: 1μA at 85°C
Operation temperature: –40°C to +125°C
Die or TSSOP14 package
Available Support
ZSSC3122 SSC Evaluation Kit available: SSC
Evaluation Board, samples, software,
documentation.
Support for industrial mass calibration available.
Quick circuit customization option for large
production volumes.
Application: Digital Output, Alarms
* I2C™ is a registered trademark of NXP.
See data sheet section 1.3 for restrictions.
© 2011 Zentrum Mikroelektronik Dresden AG — Rev. 1.20
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner.
The information furnished in this publication is subject to changes without notice.

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अनुशंसा डेटापत्रक

भाग संख्याविवरणविनिर्माण
ZSSC3122Low Voltage Capacitive Sensor Signal ConditionerZentrum Mikroelektronik Dresden
Zentrum Mikroelektronik Dresden
ZSSC3122Low-Voltage Capacitive Sensor Signal ConditionerIDT
IDT


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