Data Sheet

ZSC31050
Advanced Differential Sensor Signal Conditioner
Brief Description
Features
ZSC31050 is a CMOS integrated circuit for highly
accurate amplification and sensor-specific correction
of bridge sensor and temperature sensor signals.
The device provides digital compensation of sensor
offset, sensitivity, temperature drift, and non-linearity
via a 16-bit RISC microcontroller running a polynomial correction algorithm.
 Digital compensation of sensor offset, sensitivity,
The ZSC31050 accommodates virtually any bridge
sensor type (e.g., piezo-resistive, ceramic thick-film,
or steel membrane based). In addition, it can interface to a separate temperature sensor. The bi-direc2
tional digital interfaces (I C™*, SPI, and ZACwire™)
can be used for a simple PC-controlled one-pass
calibration procedure to program a set of calibration
coefficients into an on-chip EEPROM. A specific
sensor and a ZSC31050 can be mated digitally: fast,
precise and without the cost overhead associated
with trimming by external devices or laser. The
ZACwire™ interface enables an end-of-line calibration of the sensor module.

Typical applications for the ZSC31050 include industrial, medical, and consumer products. It is specifically engineered for most resistive bridge sensors;
e.g., sensors for measuring pressure, force, torque,
acceleration, angle, position, and revolution.
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temperature drift, and nonlinearity
Accommodates nearly all resistive bridge sensor
types (signal spans from 1mV/V up to 275mV/V)
Digital one-pass calibration: quick and precise
Selectable compensation temperature source:
bridge, thermistor, or internal or external diode
Output options: voltage (0 to 5V), current
2
(4 to 20mA), PWM, I C™, SPI, ZACwire™
(one-wire interface), alarm
Adjustable output resolution (up to 15 bits) versus
sampling rate (up to 3.9kHz)
Current consumption: 2.5mA (typical)
Selectable bridge excitation: ratiometric voltage,
constant voltage, or constant current
Input channel for separate temperature sensor
Sensor connection and common mode check
(sensor aging detection)
AEC-Q100 qualification (temperature grade 0)
Physical Characteristics
 Operation temperature -40 to +125°C (-40 to
+150°C de-rated, depending on product version)
 Supply voltage: 2.7 to 5.5 V; with external JFET:
5 to 40 V
 Available in SSOP16 package or as die
Benefits
 No external trimming components required
 PC-controlled configuration and calibration via
ZSC31050 Overview
digital bus interface – simple, low cost
 High accuracy (±0.1% FSO @ -25 to 85°C;
±0.25% FSO @ -40 to 125°C)
VCC
†
Available Support
 Evaluation kit available
Sensor
Module
ZSC31050
OUT
 Support for industrial mass calibration available
 Quick circuit customization possible for large
production volumes
GND
* I2C™ is a trademark of NXP.
†
Digital output signal.
For more information, contact ZMDI via [email protected]
© 2015 Zentrum Mikroelektronik Dresden AG — Rev. 1.21 —July 27, 2015. 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.
ZSC31050
Advanced Differential Sensor Signal Conditioner
ZSC31050 Block Diagram
Ext. Temp. Sens.
IR_TEMP
CTRL-REGS
SIF
VBR
+
Gain
Factor

Temp. Sens.
Select
PCOMP
ADC Mode
Offset
Shift
RAM
VINP
PGA
MUX
ADC
CMC
DAC
FIO1
OUT /
OWI
PWM
FIO2
IO1
IO2
VINN
Analog Front-End (AFE)
SCL
SDA
EEPROM
Int. Temp. Sensor
External
Temperature
Sensor
Digital Section
Sensor Bridge
Typical Applications:
Interfaces
IN3
Consumer Goods
Industrial Applications
Portable Devices
Automotive Sensors*
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Weight scales
Flow meters
Strain gauges
Load meters
HVAC
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4-20mA transmitters
Intelligent sensor networks
Process automation
Factory automation

Altimeters
Blood pressure
monitors
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Oil pressure
Temperature sensing
Strain gauges
* AEC-Q100 qualified
Ordering Information (Please refer to section 8 in the data sheet for additional options.)
Product Sales Code
Description
Package
ZSC31050FEB
ZSC31050 Die — Temperature range: -40°C to +150°C
Unsawn on Wafer
ZSC31050FEC
ZSC31050 Die — Temperature range: -40°C to +150°C
Sawn on Wafer Frame
ZSC31050 SSOP-16 — Temperature range: -40°C to +150°C
Tube: add “-T” to sales code
Reel: add “-R”
ZSC31050KIT Evaluation
Kit V3.1
Modular ZSC31050 SSC Evaluation Kit: three interconnecting
boards, five ZSC31050 SSOP-16 samples
Kit
ZSC31050 Mass
Calibration System V1.1
Modular Mass Calibration System (MSC) for ZSC31050: MCS
boards, cable, connectors
Kit
ZSC31050FEG1
Sales and Further Information
www.zmdi.com
[email protected]
Zentrum Mikroelektronik
Dresden AG
Global Headquarters
Grenzstrasse 28
01109 Dresden, Germany
ZMD America, Inc.
1525 McCarthy Blvd., #212
Milpitas, CA 95035-7453
USA
Central Office:
Phone +49.351.8822.306
Fax
+49.351.8822.337
USA Phone 1.855.275.9634
Phone +1.408.883.6310
Fax
+1.408.883.6358
European Technical Support
Phone +49.351.8822.7.772
Fax
+49.351.8822.87.772
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.
European Sales (Stuttgart)
Phone +49.711.674517.55
Fax
+49.711.674517.87955
Zentrum Mikroelektronik
Dresden AG, Japan Office
2nd Floor, Shinbashi Tokyu Bldg.
4-21-3, Shinbashi, Minato-ku
Tokyo, 105-0004
Japan
ZMD FAR EAST, Ltd.
3F, No. 51, Sec. 2,
Keelung Road
11052 Taipei
Taiwan
Phone +81.3.6895.7410
Fax
+81.3.6895.7301
Phone +886.2.2377.8189
Fax
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Dresden AG, Korea Office
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Fax
+82.504.841.3026
© 2015 Zentrum Mikroelektronik Dresden AG — Rev. 1.21 —July 27, 2015.
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.