ZSSC3131 Datasheet PDF - IDT
| Part Number | ZSSC3131 | |
| Description | Sensor Signal Conditioner | |
| Manufacturers | IDT | |
| Logo |  |
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Sensor Signal Conditioner for Cost-
Optimized Switch Applications
ZSSC3131
Datasheet
Brief Description
The ZSSC3131 is a member of the ZSSC313x
product family of CMOS integrated circuits designed
for automotive/ industrial sensor applications. All
family members are well suited for highly-accurate
amplification and sensor-specific correction of
resistive bridge sensor signals. An internal 16-bit
RISC microcontroller running a correction algorithm
compensates sensor offset, sensitivity, temperature
drift, and non-linearity of the connected sensor
element. The required calibration coefficients are
stored by the one-pass calibration procedure in an
on-chip EEPROM.
The ZSSC3131 is optimized for simple switch and
cost-sensitive sensor applications. The integrated
adjustable digital filter enables building fast-switch-
ing real-time applications as well as stabilized
applications for switching input signals that are
unstable or disrupted.
Features
• Adjustable to nearly all resistive bridge sensor
types: maximum analog gain of 105; maximum
overall gain of 420
• Sample rate up to 200 Hz
• ADC resolution 13/14 bit
• Internal temperature compensation
• Integrated adjustable digital filter
• Digital compensation of sensor offset, sensitivity,
temperature drift, and non-linearity
• Output options: ratiometric analog voltage output
(5 - 95% maximum, 12.4 bit resolution) or
ZACwireTM (digital One-Wire Interface (OWI))
• Sensor biasing by voltage
• High voltage protection up to 33 V
• Supply current: Max. 5.5mA
• Reverse polarity and short circuit protection
• Wide operation temperature range:
-40 to +150°C
• Traceability by user-defined EEPROM entries
* Note: I2C™ is a trademark of NXP.
** FSO = Full Scale Output.
Benefits
• Family approach offers the best fitting IC selec-
tion to build cost-optimized applications
• No external trimming components required
• Low number of external components needed
• PC-controlled configuration and One-Pass/ end-
of-line calibration via I²C™* or ZACwire™
interface: Simple, cost-efficient, quick, and pre-
cise
• High accuracy (0.25% FSO** @ -25 to +85°C;
0.5% FSO @ -40 to +125°C)
• Optimized for automotive/industrial environments
due to robust protection circuitries, excellent
electromagnetic compatibility, and AEC-Q100
qualification
Available Support
• Evaluation Kits
• Application Notes
• Mass Calibration System
Physical Characteristics
• Supply voltage 4.5 to 5.5 V
• Operation temperature: -40°C to +125°C
(-40°C to +150°C extended temperature range
depending on product version)
• Available in RoHS-compliant JEDEC-SSOP14
package or delivery as die
ZSSC3131 Minimum Application Requirements
Sensor
Module
VCC
ZSSC3131
OUT
GND
© 2016 Integrated Device Technology, Inc.
1
January 25, 2016
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| |
 
ZSSC3131 Datasheet
1 Electrical Characteristics
1.1. Absolute Maximum Ratings
Note: The absolute maximum ratings are stress ratings only. The device might not function or be operable above
the operating conditions given in section 1.2. Stresses exceeding the absolute maximum ratings might also
damage the device. In addition, extended exposure to stresses above the recommended operating conditions
might affect device reliability. IDT does not recommend designing to the “Absolute Maximum Ratings.”
Parameters apply in operation temperature range and without time limitations.
Table 1.1 Absolute Maximum Ratings
No.
1.1.1
Parameter
Supply voltage 1)
1.1.2
1.1.3
Potential at AOUT pin 1)
Analog supply voltage 1)
Symbol
VDDEAMR
VOUT
VDDAAMR
Conditions
To VSSE, refer to
section 3 for application
circuits
Referenced to VSSE
Referenced to VSSA,
VDDE - VDDA < 0.35V
Min
-33
-33
-0.3
Max Unit
33 VDC
33 VDC
6.5 VDC
1.1.4
1.1.5
Voltage at all analog and
digital IO pins
Storage temperature
VA_IO
VD_IO
TSTG
Referenced to VSSA
-0.3 VDDA + 0.3 VDC
-55 150 °C
1) Refer to the ZSSC313x High Voltage Protection Description for specification and detailed conditions.
1.2. Operating Conditions
All voltages are referenced to VSSA.
Table 1.2 Operating Conditions
No.
1.2.1
Parameter
Ambient temperature 1) 2)
Symbol
TAMB_TQE
Conditions
Extended Temperature
Range (TQE)
Min Typ Max Unit
-40 150 °C
TAMB_TQA
Advanced-Performance
Temperature Range
(TQA)
-40
125 °C
TAMB_TQI
Best-Performance
Temperature Range (TQI)
-25
85 °C
1.2.2
1.2.3
Supply voltage
Bridge resistance 3) 4)
VDDE
RBR
4.5 5.0 5.5 VDC
2 25 kΩ
1) Maximum operation temperature range depends on product version (refer to section 8).
2) See the temperature profile description in the ZSSC313x Technical Note—Die & Package Dimensions.
3) No measurement in mass production; parameter is guaranteed by design and/or quality observation.
4) Symmetric behavior and identical electrical properties (especially the low pass characteristic) of both sensor inputs of the ZSSC3131 are required.
Unsymmetrical conditions of the sensor and/or external components connected to the sensor input pins of the ZSSC3131 can generate a failure in
signal operation.
© 2016 Integrated Device Technology, Inc.
5
January 25, 2016
Preview 5 Page |
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| Information | Total 23 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ ZSSC3131.PDF Datasheet ] | |
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