Overview

Description

The ZSSC4161 is a member of IDT's ZSSC416x family of CMOS integrated circuits for highly accurate amplification and sensor-specific correction of differential resistive bridge sensor signals. The ZSSC4161 is designed for single full or half bridge sensor signals. Featuring a maximum analog pre-amplification in the range of 150 to 200, this product is adjustable to nearly all resistive bridges. Digital compensation of offset, sensitivity, temperature drift, and nonlinearity is accomplished with a 16-bit RISC microcontroller. Calibration coefficients and configuration data are stored in an integrated non-volatile memory (NVM), which is reliable in automotive applications. Measured values can be read via a digital SENT or I2C interface. The SENT interface enables transmission of sensor data via its fast channel as well as supplementary data via its Serial Data Message ("slow") channel using only one output pin. End-of-line calibration is supported via an I2C interface or via a One-Wire Interface (OWI) through the data output pin (DOUT). The ZSSC4161 and the calibration equipment communicate 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. The ZSSC4161 is optimized for automotive environments by overvoltage and reverse polarity protection circuitry, excellent electromagnetic compatibility, and multiple diagnostic features.

Features

  • Single full or half bridge input
  • Basic internal and/or external temperature measurements, which can be selected for conditioning the input signal or for temperature measurement output
  • SENT or I2C interface; OWI option for calibration
  • Digital compensation of offset, gain, and higher order nonlinearity as well as temperature coefficients of measured sensor input signals
  • Operating temperature range: -40°C to 150°C
  • Accuracy: ±0.25% FSO @ -40°C to 125°C
  • NVM memory for configuration data, user-configurable measurement and conditioning function, and user-selected data

Comparison

Applications

Documentation

Type Title Date
Datasheet - Short-form PDF 159 KB
Datasheet - Short-form PDF 192 KB
Datasheet Log in to Download PDF 536 KB
Datasheet Log in to Download PDF 607 KB
Guide 7Z 1.21 MB
5 items

Design & Development

Software & Tools

Software Downloads

Type Title Date
Software & Tools - Evaluation Software Log in to Download ZIP 10.94 MB
1 item

Boards & Kits

Boards & Kits

Models

ZSSC416x/7x Sensor Signal Conditioners Automotive Overview

Modern vehicles are filled with complex sensor systems to achieve optimal performance and lower emissions. IDT's ZSSC416x and ZSSC417x family of sensor signal conditioner ICs are ideal for use in the engine and exhaust system. Sensing differential pressure at the mass airflow intake using a single IC attached to two sensors lowers power consumption and improves accuracy compared to traditional sensing systems. Manifold pressure and temperature sensing also benefits from the use of a dual input IC, with higher accuracy measurements resulting in a more optimal fuel mix.

The IDT ZSSC416x and ZSSC417x family of sensor signal conditioners provide a platform for measurement systems with improved accuracy, reliability, and performance with lower power consumption. The family of devices provides highly accurate amplification with integrated compensation, correction, and calibration, while also sharing a common four-millimeter by four-millimeter QFN package and tool set to reduce development and assembly costs. 

For more information about IDT's sensor signal conditioner ICs visit www.IDT.com/products/sensor-products/sensor-signal-conditioners.

TRANSCRIPT

Modern vehicles are filled with complex sensor systems to achieve optimal performance and lower emissions. IDT's ZSSC416x and ZSSC417x family of sensor signal conditioner ICs are ideal for use in the engine and exhaust system. Sensing differential pressure at the mass airflow intake using a single IC attached to two sensors lowers power consumption and improves accuracy compared to traditional sensing systems. Manifold pressure and temperature sensing also benefits from the use of a dual input IC, with higher accuracy measurements resulting in a more optimal fuel mix.

High temperature sensing across the turbo-charger benefits from a simpler design and lower cost with both thermocouples connecting to the same IC. At the diesel particulate filter, IDT products enable more accurate measurements of filter saturation, resulting in less fuel waste for filter purging. Selective catalytic reduction adds urea to the exhaust to reduce harmful emissions. Improved measurement accuracy leads to better control of urea dosing, reducing urea overuse and refilling costs for the vehicle owner. By more accurately measuring temperature and pressure in the fuel line, the control unit can provide the best fuel/air mix, lowering emissions and improving engine performance.

Compared to traditional anemometers, the sensors used with IDT sensor signal conditioner products are more durable in the harsh environment of exhaust mass airflow measurements, leading to a more reliable, lower power solution. The IDT ZSSC416x and ZSSC417x family of sensor signal conditioners provide a platform for measurement systems with improved accuracy, reliability, and performance with lower power consumption. The family of devices provides highly accurate amplification with integrated compensation, correction, and calibration, while also sharing a common four-millimeter by four-millimeter QFN package and tool set to reduce development and assembly costs. For more information on IDT's ZSSC416x and ZSSC417x sensor signal conditioners, visit idt.com