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Número de pieza | ZMD31035 | |
Descripción | Automotive Sensor Signal Conditioner | |
Fabricantes | Zentrum Mikroelektronik Dresden | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de ZMD31035 (archivo pdf) en la parte inferior de esta página. Total 2 Páginas | ||
No Preview Available ! 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
1 page |
Páginas | Total 2 Páginas | |
PDF Descargar | [ Datasheet ZMD31035.PDF ] |
Número de pieza | Descripción | Fabricantes |
ZMD31035 | Automotive Sensor Signal Conditioner | Zentrum Mikroelektronik Dresden |
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