ASNT6123

• Two parallel broadband transimpedance amplifiers for low noise receiver side applications.
• Both amplifiers feature automatic input offset control and a peak detector.
• Independently adjustable 16-20GHz of analog bandwidth per amplifier channel.
• 80.0dBOhm of transimpedance differential gain per amplifier.
• 15.0pA/sqrtHz of input referred noise density (0.1 to 20GHz) for each amplifier.
• Two CML output interfaces with 50Ohm termination and 300mVp-p single-ended swing.
• Single +3.3V power supply.
• Power consumption: 460mW.
• Exhibits low jitter and limited temperature variation over industrial temperature range.
• Fabricated in SiGe for high performance, yield, and reliability.

The temperature stable ASNT6123 SiGe IC provides dual channel low jitter broadband current to voltage conversion and amplification between its two pair of independent input and output signal ports and is intended for use in high-speed communication systems. The low noise ASNT6123 can process two up to 25Gbps data signals and deliver two limited 600mVp-p differential signals for single ended input current levels as low as 80μA. Automatic offset control (AOC) circuitry is included for both channels to separately adjust each amplifier’s unused input signal port to compensate for the average value of the photodiode current on the used input port of each amplifier and any internal DC offsets that might occur in each channel. AOC’s low frequency corner is 10KHz with an off chip capacitor value of 300nF for both channels. Each amplifier’s analog bandwidth can be tuned independently from 16-20GHz by means of on chip bandwidth control circuitry and externally adjustable control pins. The part’s two outputs support the CML logic interface with on chip 50Ohm termination and may be used differentially, AC/DC coupled, single-ended, or in any combination. ASNT6123 operates from a single +3.3V power supply.

Pins diagram for asnt6123 is not available.

The product is unpackaged.

Full product description: PDF