ADA4432-1BRJZ-R2

Overview

The ADA4432-1BRJZ-R2 is a single-channel SD video filter amplifier from Analog Devices Inc., designed for automotive environments. It features integrated short-to-battery protection up to 18 V and short-to-ground protection. The device operates on a single supply voltage ranging from 2.6 V to 3.6 V, with a typical quiescent current of 7.6 mA. It incorporates a fifth-order low-pass filter providing a -3 dB bandwidth of 10.5 MHz and 45 dB rejection at 27 MHz. The component is housed in an 8-lead LFCSP package and supports operation across a temperature range of -40°C to +125°C.

Feature Summary

• Integrated short-to-battery output flag for wire diagnostics
• Output overvoltage protection up to 18 V
• Fifth-order low-pass video filter with fixed gain
• Ultralow power-down current capability

Applications

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

Procurement Notes

Verify the specific BRJZ-R2 suffix against official documentation to confirm package type and reel specifications. Ensure compatibility with AEC-Q100 automotive qualification requirements if applicable to the target system. Cross-reference pin configurations and thermal resistance data with the manufacturer's datasheet before finalizing procurement orders.

Selection Notes

Select this component for applications requiring robust video signal filtering combined with high-voltage fault tolerance. The single-ended output configuration suits direct cable driving needs. Evaluate the 8-lead LFCSP footprint against available PCB space constraints. Consider the ultralow power-down mode for battery-sensitive automotive designs requiring efficient standby states.

Part Context

This part belongs to the ADA4432/ADA4433 family of SD video filter amplifiers. While the ADA4433-1 offers differential outputs, the ADA4432-1 variant provides single-ended functionality. Both share identical protection mechanisms and filter characteristics, differing primarily in input/output topology and quiescent current consumption levels.

Replacement Considerations

The ADA4432-1BCPZ-R7 serves as a pin-compatible alternative within the same product family. Verify that the specific ordering suffix matches the required packaging format and ensure functional equivalence regarding automotive qualification standards before substitution.

FAQ

How does the device handle short-to-battery conditions?

The device isolates internal circuitry when output voltage exceeds the supply voltage, limiting internal currents. An STB pin outputs a logic high to indicate the fault condition.

What is the purpose of the ENA pin?

The ENA pin controls the enable/disable state. Pulling it low disables the device, reducing quiescent current to approximately 13.5 µA. Floating or high enables normal operation.