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Zentrum Mikroelektronik Dresden

ZMD31035 Datasheet Preview

ZMD31035 Datasheet

Automotive Sensor Signal Conditioner

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The Analog Mixed Signal Company
ZMD31035
Automotive Sensor Signal
Conditioner
PRELIMINARY
Features
Digital compensation of sensor offset, sensitivity,
temperature drift and non-linearity
Adjustable to nearly all piezo-resistive bridge sensors types
Digital one-shot calibration: quick and precise
Selectable temperature compensation reference:
internal or external diode
Output options: analog voltage (0 to 5V) or one-wire-interface
(LIN compatible protocol)
Digital sensor calibration via one-wire-interface
Sampling rate typically 125Hz
High voltage protection
Reverse polarity and short circuit protection
Operation temperature –40 to +125°C
Supply voltage 4.5 to 5.5V
Application Circuit
TEMP.
SENSING
DIODE
BRIDGE
SENSOR
VDDB
VTN
VBN
VSSB
VBP
AOUT
VSSE
VSSA
VSSA
VDDA
DI
CLK
VDD
VDDE
VSS
100n
100n
100n
GND
OUT
OWI
15n
VSUPPLY
4.5...5.5V
Benefits
No external trimming components required
PC-controlled configuration and calibration
via one-wire interface – simple, low cost
High accuracy (±0.1% FSO @ -25 to 85°C;
±0.25% FSO @ -40 to 125°C)
Brief Description
The ZMD31035 is a CMOS integrated circuit for highly-
accurate amplification and sensor-specific correction of
bridge sensor signals. Digital compensation of sensor
offset, sensitivity, temperature drift and non-linearity is
accomplished via a 16-bit RISC micro-controller running
a correction algorithm with calibration coefficients stored
in a non-volatile EEPROM.
The ZMD31035 is adjustable to nearly all piezo-resistive
bridge sensors. Measured values are provided at the
analog voltage output or at the one-wire-interface.
The digital one-wire-interface can be used for a simple
PC-controlled calibration procedure, in order to program
a set of calibration coefficients into an on-chip EEPROM.
Thus a specific sensor and a ZMD31035 are mated digi-
tally: fast, precise and without the cost overhead associ-
ated with trimming by external devices or laser.
The ZMD31035 is optimized for automotive environ-
ments by it’s protection circuitry and excellent electro-
magnetic compatibility.
• Evaluation kit will be available, containing PCBs,
SSOP14 samples, software, documentation
• Support for industrial mass calibration available
• Quick circuit customization possible for large
production volumes




Zentrum Mikroelektronik Dresden

ZMD31035 Datasheet Preview

ZMD31035 Datasheet

Automotive Sensor Signal Conditioner

No Preview Available !

Application Examples
Detection of low-/overpressure in fuel tanks
MAP Sensors
Hydraulic reservoir pressure monitoring for ABS
and power steering
Engine management
Comfort functions
Tire pressure monitoring (in combination
with wireless transmitters)
Ordering Information
Ordering Code
ZMD31035AD ES
ZMD31035AF ES
Description
Operating
Temperature Range
engineering samples
as dice in waffletray
engineering samples
as finished parts
Package
Type
die
SSOP14
ZMD31035AAB*
ZMD31035AAC*
ZMD31035AAD*
dice on tested
unsawn wafer
dice on tested
sawn wafer
dice in waffle tray
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
die
die
die
ZMD31035AAF-T* finished parts
in tube
-40°C to +125°C
SSOP14
ZMD31035AAF-R* finished parts
in tape on reel
-40°C to +125°C
SSOP14
ZMD31035KIT
evaluation kit
Device
Marking
ZMD
31035AF
YYWW ***
ZMD
31035AAF
YYWW
ZMD
31035AAF
YYWW
Shipping Form**
waffle tray
sample box or tube
6” wafer
sawn 6” wafer
on plastic frame
waffle tray
(100 dice / tray)
tube
(77 parts / tube)
tube
(2000 parts /reel)
box with PCBs, CD-ROM,
SSOP14 samples
* Serial parts – available from serial production start
** The quantity ordered should be a multiple of the quantity / packing unit as specified
*** Optional labeled with “ES” in addition
For further
information:
ZMD AG
Grenzstrasse 28
01109 Dresden
Germany
Tel +49.351.8822.366
Fax +49.351.8822.337
sales@zmd.de
ZMD America, Inc.
201 Old Country Road, Suite 204
Melville, NY 11747
USA
Tel +1.631.549.2666
Fax +1.631.549.2882
sales@zmda.com
ZMD America, Inc.
15373 Innovation Drive, Suite 115
San Diego, CA 92128
USA
Tel +1.858.674.8070
Fax +1.858.674.8071
sales@zmda.com
© ZMD AG 2004 · Rev. 0.2 · Preliminary
www.zmd.biz
This information applies to a product under development. Its characteristics and specifications are subject to change without notice. ZMD assumes no obligation regarding future manufacture
unless otherwise agreed to in writing. The information furnished hereby is believed to be true and accurate. However, ZMD shall not be liable to any customer, licencee or any other third
party for any damages in connection with or arising out of the furnishing, performance or use of this technical data. No obligation or liability to any customer, licencee or any other third party
shall result from ZMD's rendering of technical or other services.


Part Number ZMD31035
Description Automotive Sensor Signal Conditioner
Maker Zentrum Mikroelektronik Dresden
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