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4.25Gbps Transimpedance Amplifier with AGC and RSSI


Package | PIN: Y | 0
Temp: I (-40 to 85)
Carrier: BULK
Qty Price
1-9 $3.13
10-24 $2.82
25-99 $2.63
100-249 $2.30
250-499 $2.16
500-749 $1.83
750-999 $1.55
1000+ $1.48


  • 2.8-GHz Bandwidth
  • 3.2-kΩ Differential Transimpedance
  • Automatic Gain Control (AGC)
  • 8.8-pA/√Hz Typical Input Referred Noise
  • 2-mAp-p Maximum Input Current
  • Received Signal Strength Indication (RSSI)
  • CML Data Outputs With On-Chip 50-Ω Back-Termination
  • On-Chip Supply Filter Capacitor
  • Single 3.3-V Supply
  • Die Size: 0,78 × 1,18 mm
    • SONET/SDH Transmission Systems at OC24 and OC48
    • 4.25-Gbps, 2.125-Gbps, and 1.0625-Gbps Fiber-Channel Receivers
    • Gigabit Ethernet Receivers
    • PIN Preamplifier-Receivers

Texas Instruments  ONET4291TY

The ONET4291T is a high-speed transimpedance amplifier used in optical receivers with data rates up to 4.25 Gbps.

It features a low input referred noise, 2.8-GHz bandwidth, automatic gain control (AGC), 3.2-kΩ transimpedance, and received signal strength indication (RSSI).

The ONET4291T is available in die form and is optimized for use in a TO can.

The ONET4291T requires a single 3.3-V supply, and its power-efficient design typically dissipates less than 56 mW. The device is characterized for operation from –40°C to 85°C ambient temperature.