ADA4830-2BCPZ-R2

Overview

The ADA4830-2BCPZ-R2 is a dual-channel high-speed difference amplifier from Analog Devices, housed in a 16-lead 3 mm × 3 mm LFCSP package. It integrates input short-to-battery protection up to 18 V and features a fixed differential gain of 0.50 V/V. Key electrical specifications include an 84 MHz bandwidth, 250 V/µs slew rate, and 73 dB SNR. The device operates on a single supply voltage ranging from 2.9 V to 5.5 V with a quiescent current of 6.8 mA per channel.

Feature Summary

• Integrates robust input overvoltage protection capable of withstanding direct short-to-battery voltages up to 18 V without external components.
• Provides a dedicated short-to-battery output flag pin for wire diagnostics and fault indication.
• Features wide input common-mode range allowing signal extension well below ground and above the positive rail.
• Includes an enable/output disable mode to reduce power consumption when the device is not in use.

Applications

• Automotive vision systems
• Automotive infotainment
• Surveillance systems

Procurement Notes

Verify the specific suffix BCPZ-R2 against the manufacturer's ordering guide to confirm the reel packaging configuration. Confirm that the automotive temperature range qualification aligns with system requirements. Ensure ESD handling protocols are followed during assembly due to the exposed paddle thermal pad design.

Selection Notes

Select this component for applications requiring differential video signal reception in harsh environments. The dual-channel architecture supports two independent video inputs within a single compact footprint. Verify that the 0.50 V/V internal gain matches the input voltage levels required by downstream analog-to-digital converters or decoders.

Part Context

This part belongs to the ADA4830 family of monolithic high-speed difference amplifiers. The dual-channel variant complements the single-channel ADA4830-1, offering identical performance characteristics across both channels. Both variants share the same automotive-grade qualification and package dimensions for consistent board layout strategies.

Replacement Considerations

ADA4830-1BCPZ-R2 (Single Channel)

FAQ

How does the device handle input overvoltage conditions?

The device employs fast switching circuitry to clamp and hold internal voltage nodes at safe levels when input voltages exceed the supply rails, protecting the chip from damage up to 18 V.

What is the function of the STB pin?

The STB pin serves as a short-to-battery indicator output. It goes logic low to signal an overvoltage condition on the inputs and remains logic high during normal operation.