EL4093CSZ-T7

Overview

The EL4093CSZ-T7 is a high-speed DC-restored video amplifier subsystem manufactured by Renesas Electronics Corporation. It integrates a current feedback amplifier and a sample-and-hold amplifier to stabilize video performance with low power consumption. The device features a 300MHz bandwidth, a 1500V/µs slew rate, and a typical supply current of 9.5mA. It offers high accuracy DC restoration with a maximum restored DC offset of 1.5mV. The component operates within an ambient temperature range of -40°C to +85°C and is housed in a 16-pin SOIC package.

Feature Summary

• Integrates a current feedback amplifier and a sample-and-hold amplifier for complete DC restoration.
• Features a TTL-compatible HOLD logic input for easy interfacing.
• Provides high differential gain and phase accuracy suitable for NTSC applications.
• Includes fast enable and low leakage characteristics in the sample-and-hold section.

Applications

• Input amplifier in video equipment
• Restoration amplifier in video mixers

Procurement Notes

Verify that the suffix T7 corresponds to tape and reel packaging if required for automated assembly, as standard bulk versions may differ. Confirm the specific revision level against the latest manufacturer documentation to ensure compatibility with design requirements. Check for any product change notices regarding pinout or electrical specifications before finalizing procurement plans.

Selection Notes

Select this component for designs requiring precise DC restoration in high-bandwidth video signal chains. Ensure the application utilizes ±5V power supplies to achieve specified performance metrics. Verify that the hold capacitor value meets the minimum recommendation to maintain loop stability across the operating temperature range.

Part Context

The EL4093 series is designed for high-speed video processing tasks. It serves as a subsystem combining amplification and correction functions. The CSZ variant indicates a plastic surface-mount package. This family targets professional video equipment where signal integrity and low power consumption are critical design constraints.

Replacement Considerations

The datasheet explicitly states that no recommended replacement is available for obsolete products. Contact technical support for potential alternatives.

FAQ

How does the sample-and-hold amplifier interact with the current feedback amplifier?

The sample-and-hold amplifier compares the output of the current feedback amplifier to a DC reference. Any difference generates an autozero current fed back to the inverting input to correct the DC offset during the hold period.

What is the function of the HOLD logic input?

The HOLD input controls the mode of the sample-and-hold amplifier. When low, it acts as a general-purpose op amp; when high, it stores the correction voltage on the hold capacitor to maintain DC correction during video scan lines.