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ZMD31020

Features: • Digital compensation of sensor offset, sensitivity, temperature drift and non-linearity• Adjustable to nearly all piezo-resistive bridge sensor types• Digital one-shot calibration: quick and precise• Selectable temperature compensation reference: internal or ext...

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ZMD31020: Features: • Digital compensation of sensor offset, sensitivity, temperature drift and non-linearity• Adjustable to nearly all piezo-resistive bridge sensor types• Digital one-shot ...

ZMD31020 Data Sheet

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Part Number:
ZMD31020
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• Digital compensation of sensor offset, sensitivity, temperature drift and non-linearity
• Adjustable to nearly all piezo-resistive bridge sensor types
• Digital one-shot calibration: quick and precise
• Selectable temperature compensation reference: internal or external diode
• Output options: 0...5V analog ratiometric voltage or 12 bit digital I2C interface
• Product traceability by user-defined EEPROM entries
• Operation temperature range, depending on product version, up to 40...+125
• Supply voltage +4.5...+5.5V
• Sampling rate 100Hz
• Available in SSOP14 or as die


Specifications

PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNIT
Analog supply voltage
VDDA
-0.3
6.5
V
Digital supply voltage
VDD
to VSS
-0.3
6.5
V
Voltage at all digital I/O
VD_I/O
to VSS
-0.3
VDD+0.3
V
Voltage at all analog I/O
VA_I/O
-0.3
VDDA+0.3
V
Guaranteed
ESD-immunity
at all pins, HBM
-2
2
kV
Guaranteed
latch-up immunity
at all pins
-100
100
mA
Storage temperature
TSTG
-40
150
Average storage- and
operation temperature for
15 years time of
operation
100



Description

ZMD31020 is a CMOS integrated circuit for highlyaccurate amplification and sensor-specific correction of bridge 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 correction algorithm. ZMD31020 accommodates nearly all piezo-resistive bridge sensor types.

The bi-directional digital I2C interface can be used for a simple PC-controlled one-shot calibration procedure, in order to program a set of calibration coefficients into an on-chip EEPROM. Thus a specific sensor and a ZMD31020 are mated digitally: fast, precise and without the cost overhead associated with trimming by external devices or laser.

ZMD31020 has been designed for industrial and consumer applications and is specifically suited for most pressure sensors.




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