Texas Instruments ONET4291TA Data Sheet
Summary
This high-speed transimpedance amplifier is designed for advanced optical receivers handling data rates up to 4.25 Gbps. Featuring automatic gain control (AGC) and received signal strength indication (RSSI), it ensures optimal performance across various connectivity standards. The manual provides comprehensive details on the circuit's functional block diagram, including the signal path, voltage amplification stages, and filtering circuits. It is ideally suited for demanding applications such as SONET/SDH Transmission Systems, Gigabit Ethernet Receivers, and Fiber-Channel links.
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查询ONET4291TA供应商
ONET4291TA
www.ti.com
SLLS670–SEPTEMBER
4.25-Gbps Transimpedance Amplifier With AGC and RSSI
FEATURES APPLICATIONS
2.8-GHz Bandwidth SONET/SDH Transmission Systems at OC24•
and OC48•
3.2-kΩ Differential Transimpedance
4.25-Gbps, 2.125-Gbps, and 1.0625-Gbps•
Automatic Gain Control (AGC)
Fiber-Channel Receivers
8.8-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 1,18 mm
DESCRIPTION
The ONET4291TA is high-speed transimpedance amplifier used in optical receivers with data rates up to 4.25
Gbps.
It features low input referred noise, 2.8-GHz bandwidth, automatic gain control (AGC), 3.2-kΩ transimpedance,
and received signal strength indication (RSSI).
The ONET4291TA is available in die form and is optimized for use in TO can.
The ONET4291TA 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 ONET4291TAY
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 ONET4291TA Data Sheet
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 16 |
| File Size | 944.35 KB |
| Published | July 12, 2026 |
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Frequently Asked Questions
What is the primary use of the ONET4291TA?
It is a high-speed transimpedance amplifier used in optical receivers with data rates up to 4.25 Gbps.
Does this device require an external power supply filter capacitor?
No, it uses an on-chip, 275-pF capacitor for the whole amplifier's supply voltage filtering.
What bandwidth and transimpedance are key specifications?
It features a 2.8-GHz bandwidth and 3.2-kΩ differential transimpedance transimpedance.
Under what temperature range is the device rated to operate?
The ONET4291TA is characterized for operation from –40°C to 85°C ambient temperature.