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Automotive Sensor Signal Conditioner with Analog Output

Package Information

CAD Model: View CAD Model
Pkg. Type: VFQFPN
Pkg. Code: NLG24
Lead Count (#): 24
Pkg. Dimensions (mm): 4.0 x 4.0 x 0.9
Pitch (mm): 0.5

Environmental & Export Classifications

Moisture Sensitivity Level (MSL) 1
Pb (Lead) Free Yes
ECCN (US) EAR99
HTS (US) 8542.39.0090

Product Attributes

Lead Count (#) 24
Carrier Type Reel
Moisture Sensitivity Level (MSL) 1
Description 4x4mm 24-QFN
Pitch (mm) 0.5
Pkg. Dimensions (mm) 4.0 x 4.0 x 0.9
Qty. per Reel (#) 5000
Pb (Lead) Free Yes
Pb Free Category e3 Sn
Temp. Range (°C) -40 to +150°C
Country of Assembly THAILAND
Country of Wafer Fabrication TAIWAN
Adj. Analog Gain 3 - 912
Automotive Qual. Yes
Function Resistive SSC
Input Type Single-bridge
Interface I2C, Ratiometric Analog Voltage, ZACwire™ (OWI)
Length (mm) 4
MOQ 5000
Pkg. Type VFQFPN
Price (USD) $1.76758
Published No
Qty. per Carrier (#) 0
Qualification Level Automotive
Reel Size (in) 13
Requires Terms and Conditions Does not require acceptance of Terms and Conditions
Resolution (bits) 18
Sample Rate Max (KHz) 10
Supply Voltage (V) 4.5 - 5.5
Tape & Reel Yes
Thickness (mm) 0.9
Width (mm) 4

Description

The RAA2S4251B is a member of Renesas’ family of CMOS integrated circuits for highly accurate amplification and sensor-specific correction of differential bridge sensor signals. Featuring a maximum analog pre-amplification of 900 with analog sensor offset correction (XSOC), the RAA2S4251B is adjustable to nearly all resistive bridges.

Conditioning calculation is accomplished via a 16-bit RISC microcontroller. Calibration coefficients and configuration data are stored in the nonvolatile memory (NVM), which is reliable in automotive applications.

Measured values are provided via a ratio-metric analog output signal. End-of-line calibration is also supported through this output pin via a One-Wire Interface (OWI). Digital calibration helps keep assembly cost low as no trimming by external devices or lasers is needed. The RAA2S4251B is optimized for harsh automotive environments by over-voltage and reverse polarity protection circuitry, excellent electromagnetic compatibility, and multiple diagnostic features.