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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) FreeYes
ECCN (US)EAR99
HTS (US)8542.39.0090

Product Attributes

Lead Count (#)24
Carrier TypeReel
Moisture Sensitivity Level (MSL)1
Description4x4mm 24-QFN
Pitch (mm)0.5
Pkg. Dimensions (mm)4.0 x 4.0 x 0.9
Qty. per Reel (#)5000
Pb (Lead) FreeYes
Pb Free Categorye3 Sn
Temp. Range (°C)-40 to +150°C
Country of AssemblyTHAILAND
Country of Wafer FabricationTAIWAN
Adj. Analog Gain3 - 912
Automotive Qual.Yes
FunctionResistive SSC
Input TypeSingle-bridge
InterfaceI2C, Ratiometric Analog Voltage, ZACwire™ (OWI)
Length (mm)4
MOQ5000
Pkg. TypeVFQFPN
Price (USD)$1.76758
PublishedNo
Qty. per Carrier (#)0
Qualification LevelAutomotive
Reel Size (in)13
Requires Terms and ConditionsDoes not require acceptance of Terms and Conditions
Resolution (bits)18
Sample Rate Max (KHz)10
Supply Voltage (V)4.5 - 5.5
Tape & ReelYes
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.