EL4093CSZ

Overview

The EL4093CSZ is a DC-restored video amplifier subsystem in a 16-SOIC package. It integrates a current feedback amplifier and a sample-and-hold circuit to stabilize video performance with low power consumption. Key electrical parameters include a 300MHz -3dB bandwidth, a 1500V/µs slew rate, and a typical supply current of 9.5mA at ±5V. The device features a TTL-compatible HOLD logic input and operates within an ambient temperature range of -40°C to +85°C.

Feature Summary

• Integrates a high-speed current feedback amplifier with a sample-and-hold circuit for precise DC restoration.
• Features a high-impedance current output stage from the sample-and-hold section to simplify interfacing and preserve linearity.
• Includes a TTL-compatible HOLD logic input for straightforward control integration.

Applications

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

Procurement Notes

Verify component authenticity through authorized channels as this part is obsolete. Confirm that the 16-SOIC package matches design requirements. Ensure compatibility with existing PCB layouts due to discontinued status. Review datasheet specifications carefully before finalizing procurement decisions.

Selection Notes

Select this component for applications requiring high-bandwidth video processing with integrated DC restoration. Consider the 16-SOIC package constraints and operating temperature limits. Evaluate the need for external hold capacitors based on specific loop stability requirements.

Part Context

The EL4093CSZ belongs to the EL4093 family of video amplifiers manufactured by Renesas Electronics Corporation. It is designed for high-speed video applications such as SVGA and NTSC systems. The device combines analog signal processing capabilities with digital control interfaces.

Replacement Considerations

No recommended replacement is available. Contact technical support for potential alternatives.

FAQ

How does the sample-and-hold amplifier function during the video scan line?

When the HOLD input is low, the sample-and-hold acts as a general-purpose op amp to null the DC offset. When the HOLD input goes high, it stores the correction voltage on the hold capacitor to maintain DC correction during the subsequent video scan line.

What is the purpose of the autozero interface?

The autozero interface connects the high-impedance current output of the sample-and-hold amplifier directly to the inverting input of the current feedback amplifier. This simplifies connection and helps preserve video linearity at low supply voltages.