Texas Instruments ONET2591TA Data Sheet/Manual
Summary
Engineered for high-speed optical networking, this 2.5 Gbps transimpedance amplifier features critical functions like Automatic Gain Control (AGC), Received Signal Strength Indication (RSSI), and ultra-low input noise. Ideal for designing robust receivers in telecommunication systems (SONET/SDH, Fibre Channel, Gigabit Ethernet). The manual provides complete technical specifications, detailed block diagrams of the signal path, filter circuits, and control block functionality required by electrical engineers integrating this component into demanding high-bandwidth applications.
Page 1 Text Content
查询ONET2591TA供应商
ONET2591TA
www.ti.com
SLLS669–SEPTEMBER
2.5-Gbps Transimpedance Amplifier With AGC and RSSI
FEATURES APPLICATIONS
1.8-GHz Bandwidth SONET/SDH Transmission Systems at OC24•
and OC48•
2.6-kΩ Differential Transimpedance
2.125-Gbps and 1.0625-Gbps Fibre-Channel•
Automatic Gain Control (AGC)
Receivers
6.6-p A/√Hz Typical Input Referred Noise
Gigabit Ethernet Receivers
2-m Ap-p Maximum Input Current
PIN Preamplifier-Receivers
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 mm 1,18 mm
DESCRIPTION
The ONET2591TA is high-speed transimpedance amplifier used in optical receivers with data rates up to 2.5
Gbps.
It features low input referred noise, 1.8-GHz bandwidth, automatic gain control (AGC), 2.6-kΩ transimpedance,
and received signal strength indication (RSSI).
The ONET2591TA is available in die form and is optimized for use in TO can.
The ONET2591TA requires single 3.3-V supply, and its power-efficient design typically dissipates less than
m W. The device is characterized for operation from –40°C to 85°C ambient temperature.
AVAILABLE OPTIONS
TA DIE
–40°C to 85°C ONET2591TAY
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date. Copyright 2005, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Page Summary Contents For Texas Instruments ONET2591TA Data Sheet/Manual
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 15 |
| File Size | 940.83 KB |
| Published | June 20, 2026 |
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Frequently Asked Questions
What is the maximum data rate supported by this amplifier?
The ONET2591TA supports data rates up to 2.5 Gbps.
What kind of power supply voltage does the device require?
It requires a single 3.3-V supply for operation.
How do I adjust the input filter cutoff frequency?
If a lower cutoff frequency is needed, an external capacitor can be connected to one of the FILTER pins.
What are its automatic control functions?
It features Automatic Gain Control (AGC) and Received Signal Strength Indication (RSSI).
What is the operating temperature range?
The device is characterized for operation from –40°C to 85°C ambient temperature.