Year: 2026

AD8002 Datasheet PDF – Current Feedback Amplifier

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Part Number: AD8002

Function: Dual 600 MHz, 50 mW Current Feedback Amplifier

Package: DIP, SOIC 8 Pin Type

Manufacturer: Analog Devices

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AD8002 datasheet pdf

Description

The AD8002 is a dual, low-power, high-speed amplifier designed to operate on±5 V supplies. The AD-8002 features unique trans impedance linearization circuitry. This allows it to drive video loads with excellent differential gain and phase performance on only 50 mW of power per amplifier. The device is a current feedback amplifier and features gain flatness of 0.1 dB to 60 MHz while offering differential gain and phase error of 0.01% and 0.02°. This makes the AD-8002 ideal for professional video electronics such as cameras and video switchers. Additionally, the AD8002’s low distortion and fast settling make it ideal for buffer high-speed A-to-D converters.

The IC offers low power of 5.5 mA/amplifier max (VS=±5 V) and can run on a single 12 V power supply, while capable of delivering over 70 mA of load current. It is offered in an 8-lead plastic DIP, SOIC, and µSOIC package. These features make this amplifier ideal for portable and battery-powered applications where size and power are critical.

Features

  • Dual high-speed current feedback amplifier
  • Wide bandwidth with gain flatness: 0.1 dB up to 60 MHz
  • Very high slew rate: 1200 V/µs
  • Fast settling time: 16 ns (to 0.1%)
  • Low distortion performance
  • Excellent differential gain and phase accuracy (0.01% / 0.17°)
  • High output drive capability: >70 mA
  • Low power consumption: ~5.5 mA per amplifier
  • Operates on ±5V or single 12V supply
  • Available in DIP, SOIC, and µSOIC packages

Pinouts

AD8002 pinout

Architecture Insight (CFA vs VFA)

  • Bandwidth is largely independent of gain (unlike voltage feedback amplifiers)
  • Higher slew rate due to current-mode internal nodes
  • Feedback resistor (RF) value is critical for stability and performance
  • Optimized for wideband, high-speed signal paths

Design Notes

  • Carefully select feedback resistor (RF) as per datasheet for stability
  • Use controlled impedance PCB layout for high-frequency signals
  • Minimize parasitic capacitance at input nodes to preserve bandwidth
  • Proper termination (e.g., 50Ω or 75Ω) is required for video applications
  • Decoupling capacitors must be placed close to supply pins
  • Thermal considerations are minimal due to low power but important at high drive currents

Advantages

  • Excellent high-frequency linearity
  • Very fast transient response
  • Capable of driving low impedance loads directly
  • Low power consumption for portable applications
  • Dual amplifier reduces component count

Typical Applications

  • High-speed ADC driver circuits
  • Video line drivers (broadcast and professional video)
  • Differential signal drivers
  • RF front-end buffering
  • Video switchers and multiplexers
  • Imaging systems (cameras, processing units)
  • Special effects and signal processing chains

Alternative / Equivalent Products

  • AD8001 – Single version of high-speed CFA
  • AD812 – High-speed video amplifier
  • LMH6702 – TI ultra-high-speed amplifier
  • THS3202 – TI dual current feedback amplifier
  • OPA695 – Wideband current feedback amplifier

Other data sheets are available within the file:

AD8002AN, AD8002AR, AD8002AR-REEL, AD8002AR-REEL7

AD8002 Datasheet PDF Download


AD8002 pdf

3BR1565, 3BR1565JP Datasheet – SMPS Current Mode Controller

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Part Number: 3BR1565, ICE3BR1565JF

Function: SMPS Current Mode Controller

Package: TO220-6PIN

Manufacturer: Infineon Technologies

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3BR1565 datasheet pinout

Description

3BR1565 is a CoolSET-F3R FullPak off-line SMPS controller featuring a 650V avalanche-rugged CoolMOS power stage with a built-in startup cell and a wide VCC range up to 25V using BiCMOS technology. It integrates Active Burst Mode for standby power below 100mW at no load and Vin = 270VAC, along with fast load-jump response, 67kHz fixed switching frequency, built-in soft start, and comprehensive Auto Restart protection. The device targets off-line adapters and higher-power SMPS applications such as DVD R/W, DVD combi systems, set-top boxes, and other compact power supply designs, with the ICE3BR1565JF version specified with 1.5Ω RDS(on) and maximum output power of 68W/125W.

The CoolSET-F3R FullPak is the enhanced version of CoolSET-F3 and targets for the Off-Line Adapters and high power range SMPS in DVD R/W, DVD Combi, set top box, etc. It has a wide Vcc range to 25V by adopting the BiCMOS technology. With the merit of Active Burst Mode, it can achieve the lowest Standby Power Requirements (<100mW) at no load and Vin = 270VAC.

Features

  • 650V avalanche-rugged CoolMOS with built-in startup cell
  • Active Burst Mode for lowest standby power
  • Standby power below 100mW at no load and Vin = 270VAC
  • Fast load-jump response in Active Burst Mode
  • 67kHz internally fixed switching frequency
  • Wide VCC range up to 25V
  • BiCMOS technology
  • Auto Restart Protection Mode for overload, open-loop, VCC undervoltage, overtemperature, and overvoltage
  • Built-in soft start
  • Built-in blanking window with extendable function
  • RDS(on) of 1.5Ω for ICE3BR1565JF
  • Maximum output power of 68W/125W

Pinout

3BR1565 pinout

Absolute Maximum Ratings (Tc = 25 °C)

Parameter Symbol Value Unit
CoolMOS Drain Voltage Rating VDS 650 V
VCC Supply Voltage VCC 25 V
On-State Drain-Source Resistance RDS(on) 1.5 Ω
Switching Frequency fSW 67 kHz
Maximum Output Power Pout,max 68/125 W

Working Principle

  • The CoolSET-F3R combines a high-voltage 650V CoolMOS power device with the controller and built-in startup cell for off-line switching power supply operation.
  • The integrated startup cell provides the initial startup function and reduces the need for additional high-voltage startup circuitry.
  • Active Burst Mode reduces switching activity under light-load conditions to achieve very low standby power consumption.
  • The controller remains capable of responding quickly to a sudden increase in load while operating in Active Burst Mode.
  • The internally fixed 67kHz switching frequency provides a defined operating frequency for the SMPS power stage.
  • Built-in soft start controls the initial startup sequence and helps reduce excessive electrical stress during power-up.
  • The blanking window prevents short-duration switching events from unnecessarily activating the protection function and can be extended when required.
  • Auto Restart Protection Mode provides protection against overload, open-loop operation, VCC undervoltage, overtemperature, and overvoltage conditions.

ICE3BR1565JF datasheet

R dson = 1.5 Ohm, ICE3BR1565JF

P out max = 68W / 125W 

How to Choose This Part

  • Choose 3BR1565 when an off-line adapter or higher-power SMPS requires an integrated 650V CoolMOS power stage and controller.
  • It is suitable for applications where standby power below 100mW is required at no load and Vin = 270VAC.
  • The integrated startup cell is useful when minimizing the external component count on the high-voltage primary side.
  • The 67kHz internally fixed switching frequency provides a defined operating point for transformer and EMI design.
  • Consider the 1.5Ω RDS(on) specification of ICE3BR1565JF when evaluating efficiency, conduction loss, and thermal requirements.
  • For higher-power SMPS applications, the stated 68W/125W output power range should be evaluated against the actual converter topology, thermal conditions, and operating environment.

Applications

  • Off-line adapters
  • High-power SMPS
  • DVD R/W power supplies
  • DVD combi power supplies
  • Set-top box power supplies
  • Compact off-line switching power supplies
  • Low-standby-power AC-DC converters

Other data sheets are available within the file: 3BR1565JF, ICE3BR1565JF

3BR1565 Datasheet PDF Download


3BR1565 pdf

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