Signal Conditioner. ZSSC3122 Datasheet

ZSSC3122 Conditioner. Datasheet pdf. Equivalent

ZSSC3122 Datasheet
Recommendation ZSSC3122 Datasheet
Part ZSSC3122
Description Low Voltage Capacitive Sensor Signal Conditioner
Feature ZSSC3122; Data Sheet Rev. 1.20/ August 2011 ZSSC3122 cLite™ Low Voltage Capacitive Sensor Signal Conditioner .
Manufacture Zentrum Mikroelektronik Dresden
Datasheet
Download ZSSC3122 Datasheet




Zentrum Mikroelektronik Dresden ZSSC3122
Data Sheet
Rev. 1.20/ August 2011
ZSSC3122
cLiteLow Voltage Capacitive Sensor Signal Conditioner



Zentrum Mikroelektronik Dresden ZSSC3122
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.



Zentrum Mikroelektronik Dresden ZSSC3122
ZSSC3122
cLite™ Low Voltage Capacitive Sensor Signal Conditioner
cLite™
ZSSC3122
Block Diagram
Application: Analog Output
Application: Differential Capacitance Input
Part Ordering Codes
Sales Code
ZSSC3122AA1B
ZSSC3122AA1C
ZSSC3122AA2
ZSSC3122KIT
Description
ZSSC3122 cLite™ die — Temperature range: -40°C to +125°C
ZSSC3122 cLite™ die — Temperature range: -40°C to +125°C
ZSSC3122 cLite™ TSSOP14 — Temperature range: -40°C to +125°C – Lead-free package
ZSSC3122 SSC Evaluation Kit: Communication Board, SSC Evaluation Board, Sensor Replacement
Board, Evaluation Software, USB Cable, 5 IC Samples
Package
Tested dice on un-sawn wafer
Tested dice on frame
Tube: add “T” to sales code
Reel: add “R”
Kit
Sales and Further Information
www.zmdi.com
SSC@zmdi.com
Zentrum Mikroelektronik
Dresden AG
Grenzstrasse 28
01109 Dresden
Germany
ZMD America, Inc.
8413 Excelsior Drive
Suite 200
Madison, WI 53717
USA
Phone +49 (0)351.8822.7.772 Phone +1 (608) 829-1987
Fax +49 (0)351.8822.8.7772 Fax +1 (631) 549-2882
Zentrum Mikroelektronik
Dresden AG, Japan Office
2nd Floor, Shinbashi Tokyu Bldg.
4-21-3, Shinbashi, Minato-ku
Tokyo, 105-0004
Japan
Phone +81.3.6895.7410
Fax +81.3.6895.7301
ZMD FAR EAST, Ltd.
3F, No. 51, Sec. 2,
Keelung Road
11052 Taipei
Taiwan
Phone +886 2 2377 8189
Fax +886 2 2377 8199
DISCLAIMER: This information applies to a product under development. Its characteristics and specifications are subject to change without notice. Zentrum Mikroelektronik Dresden AG
(ZMD AG) assumes no obligation regarding future manufacture unless otherwise agreed to in writing. The information furnished hereby is believed to be true and accurate. However, under
no circumstances shall ZMD AG be liable to any customer, licensee, or any other third party for any special, indirect, incidental, or consequential damages of any kind or nature whatsoever
arising out of or in any way related to the furnishing, performance, or use of this technical data. ZMD AG hereby expressly disclaims any liability of ZMD AG to any customer, licensee or any
other third party, and any such customer, licensee and any other third party hereby waives any liability of ZMD AG for any damages in connection with or arising out of the furnishing,
performance or use of this technical data, whether based on contract, warranty, tort (including negligence), strict liability, or otherwise.
© 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.







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