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MAX3268：+3.0V to +5.5V, 1.25Gbps/2.5Gbps Limiting Amplifiers

Limiting Amplifier with Squelch Function Generates Low Deterministic Jitter

The 1.25Gbps MAX3264/MAX3268/MAX3768 and the 2.5Gbps MAX3265/MAX3269/MAX3765 limiting amplifiers are designed for Gigabit Ethernet and Fibre Channel optical receiver systems. The amplifiers accept a wide range of input voltages and provide constant-level output voltages with controlled edge speeds. Additional features include RMS power detectors with programmable loss-of-signal (LOS) indication, an optional squelch function that mutes the data output signal when the input voltage falls below a programmable threshold, and excellent jitter performance. The MAX3264/MAX3265/MAX3765 feature current-mode logic (CML) data outputs that are tolerant of inductive connectors and a 16-pin TSSOP package, making these circuits ideal for GBIC receivers. The MAX3268/ MAX3269/MAX3768 feature standards-compliant positive-referenced emitter-coupled logic (PECL) data outputs and are available in a tiny 10-pin µMAX® package that is ideal for small-form-factor (SFF) receivers.

Key Features +3.0V to +5.5V Supply Voltage Low Deterministic Jitter 14ps (MAX3264) 11ps (MAX3265/MAX3765) 150ps (max) Edge Speed (MAX3265/MAX3765) 300ps (max) Edge Speed (MAX3264) Programmable Signal-Detect Function Choice of CML or PECL Output Interface 10-Pin µMAX or 16-Pin TSSOP Package

MAX3264, MAX3265, MAX3268, MAX3269, MAX3765, MAX3768: Typical Operating Circuit Applications/Uses ATM Optical Receivers Fibre Channel Optical Receivers Gigabit Ethernet Optical Receivers System Interconnect

DataSheet

Parametrics

Design kits & evaluation modules

• MAX3264EVKIT
• MAX3265EVKIT
• MAX3268EVKIT
• MAX3269EVKIT

Quality and Environmental Data

• MAX3268.pdf

Related Products

• MAX3275：Low-Noise, Fibre Channel Transimpedance Amplifiers
• MAX3996：+3.0V to +5.5V, 2.5Gbps VCSEL and Laser Driver

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