ZSSC3136BA2T Datasheet ZSSC3136BA2T, ZSSC3136BE2R, ZSSC3136BA2R | P1-P3

Sensor Signal Conditioner for

Safety Switch Applications

ZSSC3136

Datasheet

January 22, 2016

GND

OUT

VCC

Sensor

Module

ZSSC3136

Brief Description

The ZSSC3136 is a member of the ZSSC313x

family of CMOS integrated circuits 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 ZSSC3136 is optimized for SIL (Safety Integrity

Level) rated switch applications. The integrated

adjustable digital filter offers the possibility of setting

up fast switching real-time applications as well as

stabilized switching applications in the case of

disturbed or unstable input signals.

In addition to the general features for switch appli-

cations, the ZSSC3136 offers the capability to set up

safety-relevant SIL2 rated switches due to its

extended safety functionalities.

Features

• Analog gain of 105, maximum overall

gain of 420

• Sample rate: 200 Hz maximum

• ADC resolution: 13/14 bit

• External temperature sensor

• Safety functionalities: Calibration microcontroller,

sensor connection, analog front-end

• Adjustable to nearly all resistive bridge sensor

types

• Digital compensation of sensor offset, sensitivity,

temperature drift, and non-linearity

• Output options: ratiometric analog voltage output

(5 - 95% in maximum, 12.4 bit resolution) or

ZACwire

(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: -40 to +150°C

• Traceability by user-defined EEPROM entries

* Note: I

C™ is a trademark of NXP.

** FSO = Full Scale Output.

Benefits

• Capability for setting up SIL level 2 applications

• Application-focused feature set

• No external trimming components required

• Only a few external protection devices 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 environment

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

ZSSC3136 Minimum Application Requirements

Sensor Signal Conditioner for

Safety Switch Applications

ZSSC3136

Datasheet

January 22, 2016

ZSSC3136 Switch Application Example

Sensor Bridge

Out

GND

SUPP

47nF

+4.5V to +5.5V

ZSSC3136

VDDA

VSSA

SDA

SCL

n.c.

VDD

VDDE

IRTEMP

VBR_T

VBP

VBR_B

VBN

AOUT

VSSE

100nF

Temperature Sensor

Out

µC

GPIO

SUPP

GND

2kΩ

Ordering Information (See data sheet section 8 for complete delivery options.)

Product Sales Code Description Package

ZSSC3136BE1 ZSSC3136 die – tested; temperature range -40 to +150 °C Unsawn wafer: add “B” to sales code

Die on frame: add “C” to sales code

ZSSC3136BA1 ZSSC3136 die – tested; temperature range -40 to +125 °C Unsawn wafer: add “B” to sales code

Die on frame: add “C” to sales code

ZSSC3136BE2 ZSSC3136 SSOP14 – temperature range -40 to +150 °C Tube: add “T” to sales code

Tape & Reel: add “R”

ZSSC3136BA2 ZSSC3136 SSOP14 – temperature range -40 to +125 °C Tube: add “T” to sales code

Tape & Reel: add “R”

ZSSC313xKITV1.1 ZSSC313x Evaluation Kit, revision 1.1, including Evaluation Board,

ZSSC3136 IC samples, USB cable (software can be downloaded

from the product page www.IDT.com/ZSSC3136)

Kit

ZSSC313x Mass Calibration

System V1.1

Modular Mass Calibration System (MSC) for ZSSC313x including

MCS boards, cable, connectors (software can be downloaded from

the product page www.IDT.com/ZSSC3136)

Kit

Corporate Headquarters

6024 Silver Creek Valley Road

San Jose, CA 95138

www.IDT.com

Sales

1-800-345-7015 or 408-284-8200

Fax: 408-284-2775

www.IDT.com/go/sales

Tech Support

www.IDT.com/go/support

DISCLAIMER Integrated Device Technology, Inc. (IDT) reserves the right to modify the products and/or specifications described herein at any time, without notice, at IDT's sole discretion. Performance

specifications and operating parameters of the described products are determined in an independent state and are not guaranteed to perform the same way when installed in customer products. The

information contained herein is provided without representation or warranty of any kind, whether express or implied, including, but not limited to, the suitability of IDT's products for any particular purpose, an

implied warranty of merchantability, or non-infringement of the intellectual property rights of others. This document is presented only as a guide and does not convey any license under intellectual property

rights of IDT or any third parties.

IDT's products are not intended for use in applications involving extreme environmental conditions or in life support systems or similar devices where the failure or malfunction of an IDT product can be

reasonably expected to significantly affect the health or safety of users. Anyone using an IDT product in such a manner does so at their own risk, absent an express, written agreement by IDT.

Integrated Device Technology, IDT and the IDT logo are trademarks or registered trademarks of IDT and its subsidiaries in the United States and other countries. Other trademarks used herein are the

property of IDT or their respective third party owners. For datasheet type definitions and a glossary of common terms, visit www.idt.com/go/glossary

. All contents of this document are copyright of Integrated

ZSSC3136

Datasheet

January 22, 2016

Contents

1 Electrical Characteristics ............................................................................................................................... 5

1.1. Absolute Maximum Ratings .................................................................................................................... 5

1.2. Operating Conditions .............................................................................................................................. 5

1.3. Electrical Parameters ............................................................................................................................. 6

1.3.1. Supply Current and System Operation Conditions .......................................................................... 6

1.3.2. Analog Front-End (AFE) Characteristics ......................................................................................... 6

1.3.3. Temperature Measurement ............................................................................................................. 6

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

1.3.5. Sensor Check ................................................................................................................................... 7

1.3.6. DAC and Analog Output .................................................................................................................. 7

1.3.7. System Response ............................................................................................................................ 8

1.4. Interface Characteristics and EEPROM ................................................................................................. 9

1.4.1. I²C

Interface .................................................................................................................................. 9

1.4.2. ZACwire™ One-Wire Interface (OWI) ............................................................................................. 9

1.4.3. EEPROM .......................................................................................................................................... 9

2 Circuit Description ....................................................................................................................................... 10

2.1. Signal Flow ........................................................................................................................................... 10

2.2. Application Modes ................................................................................................................................ 11

2.3. Analog Front-End (AFE) ....................................................................................................................... 11

2.3.1. Programmable Gain Amplifier (PGA) ............................................................................................. 11

2.3.2. Offset Compensation ..................................................................................................................... 12

2.3.3. Measurement Cycle ....................................................................................................................... 12

2.3.4. Analog-to-Digital Converter ............................................................................................................ 13

2.4. Temperature Measurement .................................................................................................................. 14

2.5. System Control and Conditioning Calculation ...................................................................................... 14

2.5.1. General Working Modes ................................................................................................................ 14

2.5.2. Startup Phase ............................................................................................................................... 15

2.5.3. Conditioning Calculation ................................................................................................................ 15

2.6. Analog or Digital Output ....................................................................................................................... 16

2.7. Serial Digital Interface .......................................................................................................................... 16

2.8. Failsafe Features .................................................................................................................................. 16

2.9. High Voltage, Reverse Polarity, and Short Circuit Protection .............................................................. 17

3 Application Circuit Examples ....................................................................................................................... 18

4 Pin Configuration and Package ................................................................................................................... 20

5 ESD Protection ............................................................................................................................................ 21

6 Quality and Reliability .................................................................................................................................. 21

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P24

ZSSC3136BA2T

Mfr. #:

Buy ZSSC3136BA2T

Manufacturer:

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Description:

Sensor Interface Sensor Signal Conditoner

Lifecycle:

New from this manufacturer.

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ZSSC3136BA2T

ZSSC3136BA2T

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