56 Gbaud PAM4 transimpedance amplifier (TIA)

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Coherent Introduces 100G Transimpedance Amplifiers for 400G/800G Optical Transceivers
Globenewswire· 2025-07-24 20:35
Core Insights - Coherent Corp. has introduced the 56 Gbaud PAM4 transimpedance amplifier (TIA) to its open-market ASIC portfolio, aimed at enhancing optical transceiver performance for 400G and 800G applications [2][3] Product Features - The new CHR1065 product family offers exceptional performance with a 2 µARMS input-referred noise level, which enhances receiver sensitivity for extended optical reach [3] - It features high linearity up to 2.5 mA, ensuring reliable performance across various link budgets [3] - The power efficiency of 227 mW per channel supports dense deployments in power-constrained datacenters, thereby reducing operational costs and cooling requirements [3] - The product is designed for compact DR, FR, and LR module configurations, with a 750 µm optical pitch and advanced monitoring via I2C [3] Market Strategy - Coherent is expanding its fiber-optic ASIC portfolio and plans to release 112 GBaud and 224 GBaud ASICs in the near future [4] - The CHR1065 is currently available as a wire-bondable bare die and has entered volume production, with engineering samples being shipped in 25-piece waffle packs [4] Company Overview - Coherent is recognized as a global leader in photonics, providing technology solutions for datacenter, communications, and industrial markets [5] - Established in 1971, the company operates in over 20 countries and offers a comprehensive technology stack and resilient supply chain to address complex technology challenges [6]