Automotive Resistive Sensor Signal ZSSC4169 Short-Form Datasheet Conditioner with SENT Output Description Features The ZSSC4169 is member of IDTs family of CMOS integrated Differential bridge sensor input and on-chip or external circuits for highly accurate amplification and sensor-specific temperature sensors, selectable for conditioning of the sensor correction of differential bridge sensor element signals. Featuring input signal and/or temperature output a maximum analog pre-amplification in the range of up to 200, the Digital compensation for offset, gain, and higher order ZSSC4169 is adjustable to nearly all resistive bridges. This nonlinearity as well as temperature coefficients of measured datasheet specifies the specific configuration ZSSC4169 0500 14, bridge sensor input signal which is for a single, full bridge input on pins BR1P and BR1N. Operating temperature range: -40C to 150C Digital compensation of offset, gain, sensitivity, temperature drift, Accuracy: 0.5% FS at -40C to 150C and nonlinearity is accomplished via a 16-bit RISC microcontroller. NVM memory for configuration, calibration data, and Calibration coefficients and configuration data are stored in the configurable measurement and conditioning functionality ZSSC4169 nonvolatile memory (NVM), which is reliable in auto- SENT output based on SAE J2716 Revision 3.0 standard motive applications. using Fast and Serial Data Message Channels The ZSSC4169 0500 14 configuration supports using the internal Supports output of one or more sensor signals and product PTAT or external diodes as temperature references. identification via a single SENT interface connection Measured values are provided via a digital SENT interface. The Configurable for nearly all resistive bridge sensors SENT interface enables transmission of sensor data via its Fast One-pass, end-of-line calibration algorithm minimizes Channel as well as transmission of supplementary data via its production costs Serial Data Message (SDM) Channel (also referred to as the slow No external trimming or components required channel) using only one output pin. End-of-line calibration is also supported through this output pin via a One-Wire Interface (OWI). Qualified according to AEC-Q100 Grade 0 The ZSSC4169 and the calibration equipment communicate Support for the users ASIL C safety applications digitally, so the noise sensitivity is greatly reduced. Digital calibration helps keep assembly cost low as no trimming by external devices or lasers is needed. Physical Characteristics The ZSSC4169 is optimized for automotive environments by Supply voltage: 4.75V to 5.25V overvoltage and reverse polarity protection circuitry, excellent Over-voltage and reverse polarity protection up to 18V electromagnetic compatibility, and multiple diagnostic features. Bridge sensor input span: 1 to 800 mV/V Bridge sensor signal ADC resolution: 14 bit Typical Applications Output resolution: 12-bit via SENT interface Fluid brake pressure sensing (PV) Package: 24-QFN (4 4 mm wettable flanks) Hydraulic pressure sensing (e.g., steering systems with hydraulic steering support) ZSSC4169 Basic Circuit Pneumatic pressure sensing RSENT (e.g., air brake systems pneumatic shock absorbers) SENT 12 11 10 9 8 7 C LOAD Available Support 13 BOT VSSE 6 GND C1 Evaluation Kit 14 BR1N VDDE 5 VCC Application Notes TS1 SCL 15 4 SCL Calculation Tools ZSSC4169 (Top View) TOP SDA 16 3 SDA TS2 VSSA VSSA 17 2 Bridge Sensor with Optional On-Chip C2 PN-Junction BR2P VDDA 18 1 VDDA Temperature Sensor 19 20 21 22 23 24 2018 Integrated Device Technology, Inc. 1 January 19, 2018 BR2N BR1P DOUTZSSC4169 Short-Form Datasheet Corporate Headquarters Sales Tech Support 6024 Silver Creek Valley Road 1-800-345-7015 or 408-284-8200 www.IDT.com/go/support San Jose, CA 95138 Fax: 408-284-2775 www.IDT.com www.IDT.com/go/sales DISCLAIMER Integrated Device Technology, Inc. (IDT) and its affiliated companies (herein referred to as IDT) reserve the ri ght 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, t he 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 Device Technology, Inc. All rights reserved. 2018 Integrated Device Technology, Inc. 2 January 19, 2018