Short-Form Datasheet

ZSSC4132

Automotive Resistive Sensor Signal Conditioner with LIN Interface

Jun.22.20

Page 1

19

20

22

21

23

24

LIN

GND

VBAT

BOT

1

2

3

4

5

6

18

17

16

15

14

13

12

11

9

10

8

7

BRP

TS2

ZSSC4132

TOP

VB

BRN

TS1

VSS

LIN

Bridge Sensor

with On-Chip

PN-Junction

Temperature

Sensor

LIN2

Description

The ZSSC4132 is member of the Renesas

’s family

of CMOS integrated circuits for highly accurate

amplification and sensor-specific correction of

differential bridge sensor signals. Featuring a

maximum analog pre-amplification in the range of

150 to 200, the ZSSC4132 is adjustable to nearly all

resistive bridges as well as voltage-source sensor

types.

Digital compensation of offset, sensitivity,

temperature drift, and nonlinearity is accomplished

by a 16-bit RISC microcontroller. Calibration

coefficients and configuration data are stored in the

ZSSC4132 non-volatile memory (NVM), which is

reliable in automotive applications.

Measured values are provided via a LIN interface

according to the LIN Specification Package 2.2A.

The LIN interface enables transmission of sensor

data as well as transmission of supplementary data.

End-of-line calibration is also supported through this

output pin based on the LIN protocol. The

ZSSC4132 and the calibration equipment

communicate digitally, so the noise sensitivity is

greatly reduced. Digital calibration helps keep

assembly costs low as no trimming by external

devices or lasers is needed.

The ZSSC4132 is optimized for automotive

environments by overvoltage and reverse-polarity

protection circuitry, excellent electromagnetic

compatibility, and multiple diagnostic features.

Typical Applications



Pressure and temperature sensing for automotive

applications



Main application: HVAC for vehicular

environmental comfort

Available Support



Evaluation Kit



Application Notes



Calculation Tools

Features



Differential bridge sensor input and on-chip or

external temperature sensors, selectable for

conditioning of sensor input signal and/or

temperature output



Digital compensation of offset, gain, and higher

order nonlinearity as well as temperature

coefficients of measured bridge sensor input

signal



Operating temperature range -40°C to 150°C



Accuracy ±0.5% FS at -40°C to 150°C



NVM memory for configuration and calibration

data, and for configurable measurement and

conditioning functionality



LIN interface based on LIN Specification Package

2.2A



Supports output of one or more sensor signals

and product identification via a single LIN

interface connection



Configurable for nearly all resistive bridge

sensors



One-pass end-of-line calibration algorithm

minimizes production costs



No external trimming or components required



Supply voltage: 7V to 18V



Protection up to ± 40V (with external diode at

VBAT)



Input span: 1 to 900 mV/V



Effective ADC resolution: 12 to 14 bit



Output resolution: defined by user LIN frame

specification

up to signed 16-bit for raw data acquisition



Package: 24-QFN (4

 4 mm; wettable flanks)

ZSSC4132 Basic Circuit