ADD8704ACPZ-REEL7

Overview

The ADD8704ACPZ-REEL7 is a single-supply quad operational amplifier optimized for TFT LCD applications. It operates on a 4.5 V to 16.5 V supply with a total current of 2.8 mA to 3.4 mA at 16 V. The device features four distinct amplifiers: Channels A and D provide 15 mA continuous output current, while Channels B and C deliver 35 mA continuous and up to 250 mA peak current for VCOM drive. Key electrical parameters include a typical offset voltage of 15 mV, a slew rate of 6 V/µs, and a gain bandwidth product of 5.8 MHz. It functions within a temperature range of –40°C to +85°C.

Feature Summary

• Four integrated amplifiers with specialized input/output configurations tailored for gamma correction and VCOM generation in TFT LCD panels.
• High capacitive load drive capability ensuring unity gain stability even with large parasitic capacitance loads.
• Rail-to-rail output swing across all channels, allowing operation close to the positive and negative supply rails.

Applications

• TFT LCD monitor panels
• TFT LCD notebook panels
• Gamma reference voltage generation

Procurement Notes

Verify that the component matches the specific CP-16 package option required for the design. Confirm the operating temperature range aligns with system requirements. Ensure proper ESD handling protocols are followed during installation due to the sensitivity of the CMOS input stages.

Selection Notes

Select this component when designing low-cost TFT LCD driver circuits requiring high current drive for common mode voltages. Consider the asymmetric drive capabilities of Channels A and D versus the balanced high-current outputs of Channels B and C. Verify compatibility with existing column driver architectures.

Part Context

This part belongs to the ADD8704 family of quad operational amplifiers designed specifically for display applications. It serves as a drop-in replacement for the EL5420, facilitating direct upgrades or replacements in legacy designs without requiring significant schematic modifications.

Replacement Considerations

The datasheet identifies the EL5420 as a compatible drop-in replacement for this component.