ADA4830-2BCPZ-R7

Overview

The ADA4830-2BCPZ-R7 is a dual-channel high-speed difference amplifier from Analog Devices, designed for robust video signal reception in harsh environments. It integrates input short-to-battery protection up to 18 V and features an output flag for wire diagnostics. 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. Key performance metrics include a -3 dB bandwidth of 84 MHz, a slew rate of 250 V/µs, and a fixed differential gain of 0.50 V/V. It is housed in a space-saving 3 mm × 3 mm LFCSP package and qualified for automotive applications.

Feature Summary

• Integrates input overvoltage (short-to-battery) protection capable of withstanding voltages up to 18 V without external components.
• Provides a dedicated short-to-battery output flag pin to indicate fault conditions for system diagnostics.
• Features a wide input common-mode range allowing signals to extend significantly 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 that the specific ordering suffix matches the required package type and tape-and-reel configuration. Confirm that the component meets the necessary automotive qualification standards if deployed in vehicle electronics. Ensure the supply voltage and thermal dissipation requirements align with the target PCB layout and operating temperature range specifications.

Selection Notes

Select this component for applications requiring high-speed differential video processing with integrated fault protection. The dual-channel architecture allows for processing multiple video lines within a compact footprint. Consider the fixed 0.5 V/V gain when designing the interface with downstream video decoders to ensure signal levels remain within acceptable ranges.

Part Context

This part belongs to the ADA4830 family of monolithic high-speed difference amplifiers. The dual-channel variant provides two independent amplifier circuits within a single package, sharing a common power supply. It is specifically engineered to replace discrete solutions by combining amplification, attenuation, and protection functions into one integrated circuit.

Replacement Considerations

The ADA4830-1 serves as the single-channel equivalent within the same family. Automotive-grade versions are available under the ADA4830-1W and ADA4830-2W designations. Verify pin compatibility and electrical specifications before substituting with other high-speed difference amplifiers.

FAQ

How does the device handle input overvoltage conditions?

The device employs fast switching circuitry to clamp internal voltage nodes at a safe level when an input overvoltage condition is detected, allowing inputs to withstand direct short-to-battery voltages up to 18 V.

What is the function of the STB pin?

The STB pin acts as a short-to-battery indicator output. A logic low indicates an overvoltage condition, while a logic high indicates normal operation, facilitating wire diagnostics.

Can the device operate with a single power supply?

Yes, the device is designed for true single-supply capability, operating with supply voltages ranging from 2.9 V to 5.5 V.