ZSSC3240CC1B datasheet(2/64 Pages) RENESAS

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ZSSC3240

Datasheet

Nov.27.20

Page 2

Physical Characteristics



Supply voltage, VDD: 2.7V to 5.5V;

with external transistor, for example

JFET: 5V to 48V



Operating temperature: -40°C to 125°C



Supported sensor elements: 0.5kΩ to 60kΩ



Available as die on wafers or 4

 4 mm2 24-QFN

with wettable flanks, allowing visual inspection of

QFN reflow quality

Typical Applications



Calibrated, continuously operating sensors with

digital interface and/or analog output: (absolute or

ratiometric) voltage or current loop output



Enables smart, digital sensors for energy-efficient

solutions



Pressure, flow, and level sensing



Industrial applications; e.g. process/factory

automation



Consumer / white goods, e.g. HVAC, weight scales



Medical applications, e.g. blood pressure,

continuous smart health monitors

Block Diagram

IC Bias Current

Generator

Power-ON

Reset

Analog

System

Control

Unit

PGA

VTP

VTN

INP

INN

VDD

VSSB

Oscillator

Clock

Generator

SCLK/SCL

MISO

MOSI/SDA

VSS

Internal

Voltage

Regulators

Power Ctr.

VDDA int

12-24Bit

ZSSC3240

LDOctrl

AOUT /

OWI1

OWI2in

RESQ

EOC

Digitial Control and

Math Core

NVM

SPI

I2C

OWI

Internal

Temp.

Sensor

Dig

DAC

13-16Bit

Ana

Sensor Supply: voltage / ratiometric

Sensor Supply:

current mode

TEXT

Sensor

Bias

Current

VDDB

AGND / CM

Generator

Chipping

Check

Sensor

Element

Sensor

Connection

Diagnostics

external

Transistor

Regulation

Typical Application Examples

Digital Half-Bridge Sensor, e.g. PT100

Sensor Half-

Bridge

PTC /

NTC

ZSSC3240

VSSB

AO UT / OWI1

VDDB

VSS

INP

INN

VDD

(2.7 to 5.5V)

Digital Interface:

I2C or SPI or OWI

Analog Sensor with Absolute Voltage Out

ZSSC3240

VSSB

AOUT / OWI1

VDDB

VSS

INP

INN

Sensor Bridge

VDD

(2.7-5.5V)

VOUT, absolute

(0 to 1V / 0 to 5V)

OWI

Sensor with Ratiometric Voltage Output and Digital Interface

ZSSC3240

VSSB

AO UT /

OWI1

VDDB

VSS

INP

INN

Sensor Bridge

VDD

(2.7 to 5.5V)

VOUT, ratiometric

(2.5% to 97.5% of VDD)

Digital Interface:

I2C or SPI or OWI

VDD

(2.7 to

5.5V)

Analog Sensor with Current Loop Output, OWI, and External JFET

ZSSC3240

VSSB

AO UT / OWI1

VDDB

VSS

INP

OWI2in

INN

Sensor Bridge

Rsens

Loop-

4 to 20mA

Loop+

(7 to 48V)

5 to

5.5V

OWI

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