New product release. SNU511 is a dual channel sensor interface IC and adjustable to nearly all resistive bridge sensor types. The product supports digital compensation of offset, sensitivity, temperature drift, and non-linearity, with calibration coefficients stored in an integrated EEPROM.

Key Features

Dual-Channel Parallel Input: Supports simultaneous connection of two resistive bridge sensors, enabling dual-channel absolute pressure output or one absolute pressure + one differential pressure output to adapt to multi-sensor coordination scenarios.

High-Precision Digital Compensation: Equipped with digital compensation for offset, sensitivity, temperature drift, and non-linearity. Calibrated accuracy reaches ±0.1%FS across the entire temperature range, ensuring excellent data stability.

Automotive-Grade High Reliability: Operates in a wide temperature range of -40°C ~ 150°C, compliant with AEC-Q100 Grade 0 standard and developed following ASIL C process. Features ±40V overvoltage and reverse connection protection, with ESD HBM protection level up to ±2000V.

Flexible Configuration & Storage: Built-in 256-byte EEPROM for repeated erasure and storage of calibration coefficients. 16-bit ADC and 12-bit DAC ensure high-resolution data conversion, with bridge input span compatible with 1~800 mV/V.

Multiple Interfaces & Low Power Consumption: Supports three output interfaces (SENT, analog voltage, I2C) to match different host systems. Operates at 4.5V~5.5V supply voltage with a typical operating current of only 4mA, balancing compatibility and energy efficiency.

Technical Specifications

Parameter	Specification
Type	Resistive
Channel	Dual channel
Supply voltage	4.5~5.5V
Supply current	4mA
Operating temperature range	-40°C~150°C
Memory	EEPROM (256Bytes)
Temperature sampling rate (Max)	4.8kHz
Pressure sampling rate (Max)	4.8kHz
ADC resolution	16-bit
Analog output resolution (DAC)	12-bit
Interface	SENT/Analog/I2C
Over-voltage and reverse polarity protection	±40V
ESD HBM	±2000V
Qualifications	AEC-Q100 Grade 0

Why Choose SNU511?

Automotive-grade reliability with AEC-Q100 Grade 0 qualification and ASIL C development process, ensuring stable operation in extreme conditions.

High-precision data output enabled by comprehensive digital compensation and high-resolution ADC/DAC.

Dual-channel design supports multi-sensor integration, reducing system complexity and cost.

Versatile output interfaces and wide input compatibility for seamless integration with diverse host systems.

Robust protection mechanisms against overvoltage, reverse connection, and ESD, enhancing long-term operational reliability.