Signal Conditioner. ZSSC3123 Datasheet

ZSSC3123 Conditioner. Datasheet pdf. Equivalent

ZSSC3123 Datasheet
Recommendation ZSSC3123 Datasheet
Part ZSSC3123
Description Capacitive Sensor Signal Conditioner
Feature ZSSC3123; Data Sheet Rev. 1.00/ September 2011 ZSSC3123 cLite™ Capacitive Sensor Signal Conditioner ZSSC3123 .
Manufacture Zentrum Mikroelektronik Dresden
Datasheet
Download ZSSC3123 Datasheet




Zentrum Mikroelektronik Dresden ZSSC3123
Data Sheet
Rev. 1.00/ September 2011
ZSSC3123
cLiteCapacitive Sensor Signal Conditioner



Zentrum Mikroelektronik Dresden ZSSC3123
ZSSC3123
cLite™ Capacitive Sensor Signal Conditioner
Brief Description
The ZSSC3123 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 ZSSC3123 is configurable for capacitive sen-
sors with capacitances up to 260pF and a sensitivity
of 125aF/LSB to 1pF/LSB depending on resolution,
speed, and range settings. 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 ZSSC3123 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: 260pF
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%
* I2C™ is a registered trademark of NXP.
See data sheet section 1.3 for restrictions.
Benefits
Minimized calibration costs: no laser trimming,
one-pass calibration using a digital interface
Wide capacitance range to support a broad
portfolio of different sensor elements
Excellent for low-power battery applications
Interfaces
I²Cor SPI interfaceeasy 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: 2.3V 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
ZSSC3123 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
VSUPPLY
(+2.3V to 5.5V)
0.1µF
0.1µF
GND
VDD
Vcore
VSS
C0
CC
cLite
ZSSC3123
Ready
SDA/MISO
SCL/SCLK
SS
Alarm_High
Alarm_Low
© 2011 Zentrum Mikroelektronik Dresden AG Rev. 1.00
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 ZSSC3123
ZSSC3123
cLite™ Capacitive Sensor Signal Conditioner
cLite™
ZSSC3123
Block Diagram
VDD (2.3 to 5.5V)
0.1µF
Vcore
0.1µF
Sensor C0
C0 CC
C1 C1
(Optional)
VSS
ZSSC3123 cLiteCapacitive Sensor Signal Conditioner
Temp
Sensor
Ref
Cap
Offset
Cap
EEPROM
CLK/Reset
C/A
D
CDC
MUX
Analog Core
DSP
ROM
Digital Core
Ready
PDM
I2C / SPI
Low Alarm
High Alarm
Output
Communication
SCL/SCLK
SDA/MISO
Ready/PDM_C
Alarm_Low/PDM_T
SS
Alarm_High
Application: Analog Output
0.1µF 0.1µF
GND
VDD
Vcore
VSS
C0
cLite
ZSSC3123
PDM_C
PDM_T
CC Alarm_High
VSUPPLY
(+2.3V to 5.5V)
Cap.
Analog
Output
Temp
Analog
Output
LED
Application: Differential Capacitance Input
VSUPPLY
(+2.3V to 5.5V)
0.1µF
0.1µF
GND
VDD
Vcore
VSS
C0
CC
C1
cLite
ZSSC3123
Ready
SDA/MISO
SCL/SCLK
SS
Alarm_High
Alarm_Low
Part Ordering Codes
Sales Code
ZSSC3123AA1B
ZSSC3123AA1C
ZSSC3123AA2
Description
ZSSC3123 cLite™ die — Temperature range: -40°C to +125°C
ZSSC3123 cLite™ die — Temperature range: -40°C to +125°C
ZSSC3123 cLite™ TSSOP14 — Temperature range: -40°C to +125°C Lead-free package
ZSSC3123KIT
ZSSC3123 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 +49.351.8822.7.772
Fax +49.351.8822.8.7772
Phone +1.608.829.1987
Fax +1.608.829.2984
Zentrum Mikroelektronik
ZMD FAR EAST, Ltd.
Dresden AG, Japan Office
3F, No. 51, Sec. 2,
2nd Floor, Shinbashi Tokyu Bldg. Keelung Road
4-21-3, Shinbashi, Minato-ku
11052 Taipei
Tokyo, 105-0004
Taiwan
Japan
Phone +81.3.6895.7410
Fax +81.3.6895.7301
Phone +886.2.2377.8189
Fax +886.2.2377.8199
Zentrum Mikroelektronik
Dresden AG, Korean Office
POSCO Centre Building
West Tower, 11th Floor
892 Daechi, 4-Dong,
Kangnam-Gu
Seoul, 135-777
Korea
Phone +82.2.559.0660
Fax +82.2.559.0700
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.1.00
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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