ZSSC3138AA2T datasheet, PDF - EEWORLD Datasheet

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ZSSC3138AA2T: DescriptionSensor Interface Sensor Signal Conditoner; Categorysemiconductor Analog mixed-signal IC; File Size701KB，26 Pages; ManufacturerIDT (Integrated Device Technology); Environmental Compliance

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Sensor Interface Sensor Signal Conditoner

ZSSC3138AA2T Parametric

Parameter Name	Attribute value
Product Attribute	Attribute Value
Manufacturer	IDT (Integrated Device Technology)
Product Category	Sensor Interface
RoHS	Details
Interface Type	I2C
Supply Voltage - Max	5.5 V
Supply Voltage - Min	4.5 V
Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 125 C
Mounting Style	SMD/SMT
Package / Case	TSSOP-14
Packaging	Tube
Moisture Sensitive	Yes
Factory Pack Quantity	77
Unit Weight	0.004949 oz

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Data Sheet

Rev. 1.24 / April 2015

ZSSC3138

Sensor Signal Conditioner for Ceramic Sensor Applications

Multi-Market Sensing Platforms

Precise and Deliberate

ZSSC3138

Sensor Signal Conditioner for Ceramic Sensor Applications

Contents

Electrical Characteristics ............................................................................................................................... 6

1.1. Absolute Maximum Ratings .................................................................................................................... 6

1.2. Operating Conditions .............................................................................................................................. 6

1.3. Electrical Parameters ............................................................................................................................. 7

1.3.1. Supply Current and System Operation Conditions .......................................................................... 7

1.3.2. Analog Front-End (AFE) Characteristics ......................................................................................... 7

1.3.3. Temperature Measurement ............................................................................................................. 7

1.3.4. A/D Conversion ................................................................................................................................ 7

1.3.5. Sensor Check................................................................................................................................... 8

1.3.6. DAC and Analog Output .................................................................................................................. 8

1.3.7. System Response ............................................................................................................................ 9

1.4. Interface Characteristics and EEPROM ............................................................................................... 10

1.4.1. I²C Interface ................................................................................................................................ 10

1.4.2. ZACwire™ One-Wire Interface (OWI) ........................................................................................... 10

1.4.3. EEPROM ........................................................................................................................................ 10

2 Circuit Description ....................................................................................................................................... 11

2.1. Signal Flow ........................................................................................................................................... 11

2.2. Application Modes ................................................................................................................................ 12

2.3. Analog Front-End (AFE) ....................................................................................................................... 12

2.3.1. Programmable Gain Amplifier (PGA) ............................................................................................. 13

2.3.2. Offset Compensation ..................................................................................................................... 13

2.3.3. Measurement Cycle ....................................................................................................................... 14

2.3.4. Analog-to-Digital Converter ............................................................................................................ 15

2.4. Temperature Measurement .................................................................................................................. 17

2.5. System Control and Conditioning Calculation ...................................................................................... 17

2.5.1. General Working Modes ................................................................................................................ 17

2.5.2. Startup Phase ............................................................................................................................... 18

2.5.3. Conditioning Calculation ................................................................................................................ 18

2.6. Analog or Digital Output ....................................................................................................................... 19

2.7. Serial Digital Interface .......................................................................................................................... 19

2.8. Failsafe Features .................................................................................................................................. 19

2.9. High Voltage, Reverse Polarity, and Short Circuit Protection .............................................................. 20

3 Application Circuit Examples ....................................................................................................................... 21

4 Pin Configuration and Package ................................................................................................................... 22

5 ESD Protection ............................................................................................................................................ 23

6 Quality and Reliability .................................................................................................................................. 23

7 Customization .............................................................................................................................................. 23

8 Ordering Information ................................................................................................................................... 23

9 Related Documents ..................................................................................................................................... 24

10 Glossary ...................................................................................................................................................... 25

11 Document Revision History ......................................................................................................................... 26

Data Sheet

April 10, 2015

prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.

4 of 26

ZSSC3138

Sensor Signal Conditioner for Ceramic Sensor Applications

List of Figures

Figure 2.1

Figure 2.2

Figure 3.1

Figure 4.1

Block Diagram of the ZSSC3138 ................................................................................................... 11

Measurement Cycle with 1 Bridge Sensor Signal Measurement per Special Measurement ........ 15

Application with On-Chip Diode Temperature Sensor ................................................................... 21

ZSSC3138 SSOP14 Pin Diagram ................................................................................................. 22

List of Tables

Table 1.1

Table 1.2

Table 1.3

Table 1.4

Table 2.1

Table 2.2

Table 2.3

Table 3.1

Table 4.1

Absolute Maximum Ratings ............................................................................................................. 6

Operating Conditions ....................................................................................................................... 6

Electrical Parameters ....................................................................................................................... 7

Interface Characteristics and EEPROM ........................................................................................ 10

Adjustable Gains, Resulting Sensor Signal Spans and Common Mode Ranges ......................... 13

Extended Analog Zero Compensation Ranges (XZC) .................................................................. 14

ADC Resolution versus Output Resolution and Sample Rate ....................................................... 17

External Components for Application Circuit Examples ................................................................ 21

Pin Configuration and Definition .................................................................................................... 22

Data Sheet

April 10, 2015

prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.

5 of 26

ZSSC3138AA2T Related Products

	ZSSC3138AA2T	ZSSC3138AE2R
Description	Sensor Interface Sensor Signal Conditoner	Sensor Interface Sensor Signal Conditoner

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