The MAX3825 is a quad transimpedance amplifier (TIA) intended for 2.5Gbps system interconnect applications. Each of the four channels converts a small photodiode current to a measurable differential voltage with a transimpedance gain of 3.7kohm. The circuit features 460nARMS of input-referred noise per channel corresponding to an optical input sensitivity of -22.3dBm (BER < 1 x 10-14). The quad transimpedance amplifier has 20ps of deterministic jitter and a 2.4GHz small-signal bandwidth. The MAX3825 is optimized for use with a quad PIN photodetector array with a standard fiber pitch of 250µm.

The MAX3825 operates from a single +3.3V supply over a 0°C to +85°C temperature range. With a +3.3V supply, each channel dissipates 93mW of power. A DC cancellation circuit on each channel provides a true differential output swing over a wide range of input currents.

Each channel has an independent supply and ground to allow all or any combination of channels to be connected. This device is available in dice only.
MAX3825:典型应用电路 MAX3825:典型应用电路 放大+


  • Single +3.3V Supply
  • 93mW per channel Power Dissipation
  • 460nARMS Input-Referred Noise
  • 20ps Deterministic Jitter
  • 2.4GHz Small-Signal Bandwidth
  • No External Compensation
  • 40dB Power-Supply Rejection Ratio
  • Compact Die with 250µm Channel Pitch
  • 100Ω Differential Output Impedance


  • ATM交换网络
  • 背板与互连应用
  • 密集数字交叉连接
  • 高速并行光链接
  • 系统互连
产品可靠性报告: MAX3825.pdf 
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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评估板3094MAX3825EVKIT MAX3825评估板