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ZSC31050KIT 数据手册 - Zentrum Mikroelektronik Dresden
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ZSC31050
Advanced Differential Sensor Signal Conditioner
© 2010 Zentrum Mikroelektronik Dresden AG — Rev. 1.11
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.
OUT
VCC
GND
Sensor
Module
ZSC31050
Brief Description
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 by a 16-bit
RISC micro-controller running a polynomial
correction algorithm.
ZSC31050 accommodates virtually any bridge
sensor type (e.g. piezo-resistive, ceramic-thickfilm
or steel membrane based). In addition, the IC can
interface to a separate temperature sensor. The bi-
directional digital interfaces (I
2
C, SPI, and
ZACwire™) can be used for a simple PC-
controlled one-shot calibration procedure to
program a set of calibration coefficients into an on-
chip EEPROM. Thus 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.
ZSC31050 has been designed for industrial,
medical and consumer applications and is
specifically engineered for most pressure sensors.
It can also be used with force, torque, acceleration,
angle, position and revolution sensors.
Benefits
No external trimming components required
PC-controlled configuration and calibration via
digital bus interface – simple, low cost
High accuracy (±0.1% FSO @ -25 to 85°C;
±0.25% FSO @ -40 to 125°C)
Available Support
Application kit available (including calibration
board, SSOP16 samples, software, technical
documentation)
Support for industrial mass calibration available
Quick circuit customization possible for large
production volumes
digital output signal
Features
Digital compensation of sensor offset,
sensitivity, temperature drift and non-linearity
Accommodates nearly all bridge sensor types
(signal spans from 1 up to 275mV/V
processable)
Digital one-shot calibration: quick and precise
Selectable compensation temperature T1
source: bridge, thermistor, internal or external
diode
Output options: voltage (0 to 5V), current
(4 to 20mA), PWM, I
2
C, SPI, ZACwire™ (one-
wire interface), PWM, alarm
Adjustable output resolution (up to 15 bits)
versus sampling rate (up to 3.9kHz)
Current consumption: typ. 2.5mA
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)
Physical Characteristics
Operation temperature -40 to +125°C (-40 to
+150°C derated, depending on product version)
Supply voltage 2.7 to 5.5 V with external JFET
5 to 40V
Available in SSOP16 package or as die
ZSC31050 Overview
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