ADA4432-1WBRJZ-R2

Overview

The ADA4432-1WBRJZ-R2 is a single-ended SD video filter amplifier with short-to-battery protection. It features a fifth-order low-pass filter with a -3 dB bandwidth of 10.5 MHz and 45 dB rejection at 27 MHz. The device operates on a 2.6 V to 3.6 V supply, drawing 7.6 mA quiescent current. It includes output overvoltage protection up to 18 V and an STB flag. Packaged in an 8-lead LFCSP (3 mm × 3 mm), it supports -40°C to +125°C automotive temperatures.

Feature Summary

• Integrated short-to-battery protection up to 18 V with diagnostic flag
• Fifth-order low-pass video reconstruction filter for SD applications
• Low power consumption with ultralow power-down current
• Robust ESD tolerance and short-to-ground protection

Applications

• Automotive rearview cameras
• Automotive video electronic control units (ECUs)
• Surveillance video systems

Procurement Notes

Verify the specific suffix WBRJZ-R2 against official Analog Devices documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with AEC-Q100 automotive qualification requirements if applicable to the target system environment.

Selection Notes

Select this component for single-ended SD video signal processing requiring high noise immunity and robust fault protection. Consider the fixed gain and bandwidth characteristics suitable for NTSC/PAL standards. Evaluate PCB layout constraints due to the small LFCSP footprint and thermal dissipation requirements.

Part Context

This part belongs to the ADA4432/ADA4433 family of SD video filter amplifiers. It serves as the single-ended counterpart to the differential ADA4433-1. Both variants share similar protection features and filter characteristics but differ in input/output configuration.

Replacement Considerations

The pin-compatible alternative is the ADA4433-1, which offers fully differential outputs instead of single-ended. Verify interface requirements before substitution.

FAQ

How does the short-to-battery protection function?

The device isolates internal circuitry from overvoltage events up to 18 V on the output pins. An STB flag indicates when this protection is active.

What is the purpose of the ENA pin?

The ENA pin controls the device state. Pulling it low disables the amplifier, reducing quiescent current to approximately 13.5 µA.