ZSC31010CEG1-R Datasheet ZSC31010CEG1-R, ZSC31010CIG1-R, ZSC31010CIG1-T | P1-P3

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Lite

Analog Output

Sensor Signal Conditioner

ZSC31010

Datasheet

January 20, 2016

ZSC31010

Bsink

VBP

VBN

VSS

Sig™

Vgate

0.1µF

supply

Ground

+4.5 to +5.5 V

OUT/OWI

VDD

10nF

Brief Description

The ZSC31010 is a sensor signal conditioner inte-

grated circuit, which enables easy and precise

calibration of resistive bridge sensors via EEPROM.

When mated to a resistive bridge sensor, it will

digitally correct offset and gain with the option to

correct offset and gain coefficients and linearity over

temperature. A second-order compensation can be

enabled for temperature coefficients of gain or offset

or bridge linearity. The ZSC31010 communicates via

IDT’s ZACwire™ serial interface to the host

computer and is easily mass calibrated in a

Windows® environment. Once calibrated, the output

pin Sig™ can provide selectable 0 to 1 V, rail-to-rail

ratiometric analog output, or digital serial output of

bridge data with optional temperature data.

Features

• Digital compensation of sensor offset, sensitivity,

temperature drift, and non-linearity

• Accommodates differential sensor signal spans,

from 3 mV/V to 105 mV/V

• ZACwire™ One-Wire Interface (OWI)

• Internal temperature compensation and detection

via bandgap PTAT (proportional to absolute

temperature)

• Output options: rail-to-rail analog output voltage,

absolute analog voltage, digital ZACwire™ One-

Wire Interface (OWI)

• Optional sequential output of both temperature

and bridge readings on ZACwire™ digital output

• Fast response time, 1 ms (typical)

• High voltage protection up to 30 V with

external JFET

• Chopper-stabilized true differential ADC

• Buffered and chopper-stabilized output DAC

Benefits

• No external trimming components required

• Simple PC-controlled configuration and

calibration via ZACwire™ One-Wire Interface

• High accuracy (±0.1% FSO @ -25 to 85°C;

±0.25% FSO @ -50 to 150°C)

• Single pass calibration – quick and precise

• Suitable for battery-powered applications

• Small SOP8 package

Available Support

• Development Kit available

• Mass Calibration Kit available

• Support for industrial mass calibration available

• Quick circuit customization possible for large

production volumes

Physical Characteristics

• Supply voltage 2.7 to 5.5 V, with external JFET

5.5V to 30 V

• Current consumption depending on adjusted

sample rate: 0.25 mA to 1 mA

• Wide operational temperature: –50 to +150°C

ZSC31010 Application Circuit – Digital Output

RBic

Lite

Analog Output

Sensor Signal Conditioner

ZSC31010

Datasheet

January 20, 2016

ZSC31010

Bsink

VBP

N/C

VBN

VSS

SIG

VDD

Vgate

0.1 mF

supply

Ground

+5.5 to +30 V

OUT

Optional Bsink

S D

JFET

10 nF

ADC

Analog Block

Digital Block

RBic

LITE

™

ZSC31010

0 V to

Ratiometric

Rail-

-Rail

OWI

ZACwire

1 m

VSS

VBP

DAC

OUTBUF

ZACwire

Interface

DSP

EEPROM

PREAMP

INMUX

Temp

Reference

VDD

Regulator

Power Save

POR Osc

VBN

Vgate

VDD

SIG

Bsink

optional

7 to

JFET

(optional if supply is

to 5

)

SUPPLY

5 V to

1nF

Highly Versatile Applications

in Many Markets Including

 Industrial

 Building Automation

 Office Automation

 White Goods

 Automotive

 Portable Devices

 Your Innovative Designs

ZSC31010

Bsink

VBP

N/C

VBN

VSS

SIG

VDD

Vgate

0.1 mF

supply

Ground

+2.7 to +5.5 V

OUT

Optional Bsink

10 nF

ZSC31010 Block Diagram

Rail-to-Rail Ratiometric Voltage Output Applications Absolute Analog Voltage Output Applications

Ordering Examples (Please see section 11 in the data sheet for additional options.)

Sales Code

Description

Package

ZSC31010CEB ZSC31010 Die — Temperature range: -50°C to +150°C Unsawn on Wafer

ZSC31010CEC ZSC31010 Die — Temperature range: -50°C to +150°C Sawn on Wafer Frame

ZSC31010CEG1 ZSC31010 SOP8 (150 mil) — Temperature range: -50°C to +150°C Tube: add “-T” to sales code

Reel: add “-R”

ZSC31010KIT ZSC31010 ZACwire™ SSC Evaluation Kit: Communication Board, SSC Board, Sensor Replacement

Board, USB Cable, 5 IC Samples

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

ZSC31010 Datasheet

January 20, 2016

Contents

List of Figures ............................................................................................................................................................. 4

List of Tables .............................................................................................................................................................. 5

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

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

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

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

1.3.1. Supply/Regulation Characteristics ......................................................................................................... 7

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

1.3.3. EEPROM Parameters ............................................................................................................................ 7

1.3.4. A/D Converter Characteristics ............................................................................................................... 7

1.3.5. Analog Output (DAC and Buffer) Characteristics .................................................................................. 7

1.3.6. ZACwire™ Serial Interface .................................................................................................................... 8

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

1.4. Analog Inputs versus Output Resolution ...................................................................................................... 9

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

2.1. Signal Flow and Block Diagram.................................................................................................................. 11

2.2. Analog Front End ........................................................................................................................................ 12

2.2.1. Bandgap/PTAT and PTAT Amplifier .................................................................................................... 12

2.2.2. Bridge Supply ....................................................................................................................................... 12

2.2.3. PREAMP Block .................................................................................................................................... 12

2.2.4. Analog-to-Digital Converter (ADC) ....................................................................................................... 12

2.3. Digital Signal Processor ............................................................................................................................. 13

2.3.1. EEPROM .............................................................................................................................................. 14

2.3.2. One-Wire Interface—ZACwire™ .......................................................................................................... 14

2.4. Output Stage............................................................................................................................................... 15

2.4.1. Digital to Analog Converter (Output DAC) ........................................................................................... 15

2.4.2. Output Buffer ........................................................................................................................................ 15

2.4.3. Voltage Reference Block ..................................................................................................................... 15

2.5. Clock Generator / Power-On Reset (CLKPOR) ......................................................................................... 16

2.5.1. Trimming the Oscillator ........................................................................................................................ 17

3 Functional Description ....................................................................................................................................... 18

3.1. General Working Mode ............................................................................................................................... 18

3.2. ZACwire™ Communication Interface ......................................................................................................... 19

3.2.1. Properties and Parameters .................................................................................................................. 19

3.2.2. Bit Encoding ......................................................................................................................................... 20

3.2.3. Write Operation from Master to ZSC31010 ......................................................................................... 20

3.2.4. ZSC31010 Read Operations ................................................................................................................ 21

3.2.5. High Level Protocol .............................................................................................................................. 24

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ZSC31010CEG1-R

Mfr. #:

Buy ZSC31010CEG1-R

Manufacturer:

IDT

Description:

Sensor Interface Sensor Signal Conditoner

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ZSC31010CEG1-R

ZSC31010CEG1-R

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