AD8143ACPZ-REEL7

Overview

The AD8143ACPZ-REEL7 is a triple differential-to-single-ended receiver with two auxiliary comparators. It features a 260 MHz small-signal bandwidth and 160 MHz large-signal bandwidth. The device offers a 1000 V/µs slew rate, 8 ns settling time to 1%, and 65 dB common-mode rejection at 10 MHz. Input offset voltage is ±3.4 mV on a 5 V supply. It operates from +5 V to ±12 V supplies, drawing approximately 44 mA quiescent current.

Feature Summary

• Triple active-feedback architecture for RGB signal reception
• Integrated dual comparators with hysteresis for sync extraction
• High input impedance of 5 MΩ with wide common-mode range
• Power-down capability for reduced standby current

Applications

• RGB video receivers over twisted pair cables
• Keyboard-video-mouse (KVM) systems
• Unshielded twisted pair (UTP) receivers
• High-speed data transmission interfaces

Procurement Notes

Verify the REEL7 suffix indicates tape-and-reel packaging when sourcing. Confirm the LFCSP-32 package variant matches the design footprint. Ensure the extended industrial temperature rating (-40°C to +85°C) aligns with environmental requirements. Cross-reference the specific Analog Devices datasheet revision for any parameter updates.

Selection Notes

Select this component for applications requiring high common-mode rejection in noisy environments without isolation transformers. The wide power supply range supports systems with ground potential differences between drive and receive ends. Consider the integrated comparators if digital or sync signal decoding is needed alongside analog video processing.

Part Context

This part belongs to the AD8143 series of high-speed differential receivers. It is designed to work with complementary drivers like the AD8133 and AD8134. The device utilizes an active-feedback architecture distinct from conventional op amps, providing balanced inputs and independent feedback paths for superior CMRR performance.

Replacement Considerations

Publicly confirmed substitutes include other members of the AD8143 family such as the AD8143ACPZ-R2. Verify pin compatibility and electrical specifications against the original design requirements before substitution.

FAQ

How does the AD8143 handle ground potential differences?

The wide common-mode input range allows the AD8143 to maintain signal integrity even when there are several volts difference in ground potential between the drive and receive ends, eliminating the need for isolation transformers.

What is the function of the REF pins?

The REF pins serve as reference inputs that can apply a DC offset to the output signal. They are part of the feedback network and allow for user-adjustable gain configurations.

Can the AD8143 be used for single-supply operation?

Yes, the device supports a wide power supply range including a single +5 V supply, provided the minimum positive supply voltage requirement is met for the internal comparator regulator.