NT20067-GRP6

Overview

The NT20067 is a 155Mbps Automatic Gain Control (AGC) Transimpedance Amplifier (TIA) designed for optical fiber applications. It operates with a supply voltage of 3.3V or 5.0V and provides a gain of 23kΩ with a bandwidth of 0.165GHz. The device features an input noise current of 11nA, making it suitable for OC-3 and Fast Ethernet systems.

Feature Summary

• Integrates automatic gain control functionality to maintain signal integrity across varying input levels
• Provides wideband, low-noise pre-amplification for photodiode signals in optical receivers
• Features fully integrated on-chip decoupling to support low-cost designs and optimal performance

Applications

• OC-3 transmission systems
• Fast Ethernet over optical fiber
• Telecom Fiber transceiver modules

Procurement Notes

Verify the specific ordering suffix and package type against the official Semtech datasheet before procurement. Confirm that the 3.3V/5.0V supply requirement aligns with your system design. Ensure compatibility with OC-3 and Fast Ethernet standards as specified in the component documentation.

Selection Notes

Select this TIA for applications requiring 155Mbps data rates with AGC capabilities. It is optimized for OC-3 and Fast Ethernet environments. Consider its 23kΩ gain and 11nA noise figure when designing the front-end receiver stage. Verify power supply constraints match the 3.3V or 5.0V operating range.

Part Context

This component belongs to Semtech’s portfolio of Transimpedance Amplifiers (TIAs), which provide wideband, low-noise pre-amplification for optical communication systems. These devices are essential for converting current signals from PIN photodiodes or APDs into usable voltage levels for subsequent processing stages in high-performance optical receivers.

Replacement Considerations

The NT20R67 is listed as a similar 155Mbps AGC TIA with comparable specifications for OC-3 and Fast Ethernet applications. Verify pin compatibility and exact gain/bandwidth requirements before substitution.