AD8065

PRODUCTION

High Performance, 145 MHz FastFET Op Amps

Part Models
8
1ku List Price
Starting From $2.08
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Part Details

  • Qualified for automotive applications
  • FET input amplifier
  • 1 pA input bias current
  • Low cost
  • High speed: 145 MHz, −3 dB bandwidth (G = +1)
  • 180 V/µs slew rate (G = +2)
  • Low noise
    • 7 nV/√Hz (f = 10 kHz)
    • 0.6 fA/√Hz (f = 10 kHz)
  • Wide supply voltage range: 5 V to 24 V
  • Single-supply and rail-to-rail output
  • Low offset voltage 1.5 mV maximum
  • High common-mode rejection ratio: −100 dB
  • Excellent distortion specifications
  • SFDR −88 dBc @ 1 MHz
  • Low power: 6.4 mA/amplifier typical supply current
  • No phase reversal
  • Small packaging: SOIC-8, SOT-23-5, and MSOP-8
  • Download AD8065-KGD-CHIPS Data Sheet
AD8065
High Performance, 145 MHz FastFET Op Amps
AD8065-fbl AD8065 Pin Configuration AD8065 Pin Configuration AD8065 Circuit Diagram AD8065 Circuit Diagram
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Hardware Ecosystem

Parts Product Life Cycle Description
ADA4817-1 PRODUCTION Single, Low Noise, 1 GHz FastFET Op Amplifier
ADA4817-2 PRODUCTION Dual, Low Noise, 1 GHz FastFET Op Amplifier
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Tools & Simulations

LTspice 2


Models for the following parts are available in LTspice:

  • AD8065

SPICE Model 1

Power Dissipation vs Die Temp

This tool estimates die temperature and power dissipation based on the supply voltages, ambient temperature, load characteristics, and package thermal data.

Open Tool

Signal Chain Designer - BETA

Signal Chain Designer is a web-based tool designed to create and simulate complex precision signal chains. See your circuit’s performance before you commit to your PCB: transfer function, noise, power consumption, input range, and DC error. Quickly experiment with different parts and architectures. Signal chains can be exported to LTspice for further analysis.

Open Tool

Analog Filter Wizard

Use the Analog Filter Wizard to design low-pass, high-pass, or band-pass filters with actual op amps in minutes. As you progress through the design process, you can observe the characteristics of your filter design from ideal specifications to real world circuit behavior. Quickly evaluate the tradeoffs in op amp specifications - including gain-bandwidth, noise, and supply current – to determine the best filter design for your requirements.

Open Tool

Analog Photodiode Wizard

Use Photodiode Wizard to design a transimpedance amplifier circuit to interface with a photodiode. Select a photodiode from the library included in the tool, or enter custom photodiode specifications. Quickly observe tradeoffs between Bandwidth, Peaking (Q), and ENOB/SNR. Modify circuit parameters, and immediately see results in plots for pulse response, frequency response, and noise gain.

Open Tool

VRMS/dBm/dBu/dBV calculators

A utility to convert between standard units of power measurement and signal strength.

Open Tool
LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.


Evaluation Kits

eval board
AD-PAARRAY3552R-SL

RF Front-end GaN Power Amplifier Biasing, Protection, and Control Reference Design

Features and Benefits

  • Designed to cover full Tx signal chains with integrated MCU and user-friendly GUI for faster and easier integration
  • Supports fault event protection - overvoltage (OV), overcurrent (OC), and overtemperature (OT)
  • Supports ultrafast sub-µs GaN gate voltage switching ~ (<1 µs)
  • Supports ultrafast (<10 µs) fault event protection from detection up to GaN gate pinch-off
  • Wide range of gate bias voltages from -10 V to +10 V
  • Configurable power-up and power-down sequence

Product Details

The AD-PAARRAY3552R-SL reference design provides control, protection, and proper biasing sequence for GaN power amplifier (PA) arrays. The design incorporates the AD3553R high-speed, dual-channel, 16-bit DAC to support the ultrafast sub-µs voltage settling time of GaN gates.

Key fault events, including overvoltage, overcurrent, and overtemperature, are effectively managed by the LTC7000, a static switch driver responsible for system fault protection.

The on-board MAX32666 ultralow-power ARM® Cortex®-M4 microprocessor provides essential debug and programming features for a comprehensive software development experience with the system. The system's firmware is built on ADI's open-source no-OS framework and includes a user-friendly graphical interface (GUI) for evaluation. Updates are easily applied through an SWD UART bootloader, streamlining prototyping.

The system can be powered by an external +48 V supply, requiring high current capabilities.

APPLICATIONS

  • 5G massive MIMOs
  • Macro base stations
Specifications
Fault Events
Fault Default Limit
Overvoltage +55 V
Overcurrent 3.5 A
Overtemperature 75°C
Output Ports
Port Name No. of ports
GaN gate ports 6
+48 V Gan drain ports 4
+5 V ports 5
Enable ports 2
Power Supply
External +48 V DC at 5 A
Operating Conditions
Temperature Range 45°C to +75°C

eval board
EVAL-ADMX2001

High-Performance Precision Impedance Analyzer Measurement Module

Features and Benefits

  • Complex impedance measurements
    • DC, 0.2Hz to 10MHz
  • 0.05% Basic Relative Accuracy
  • Wide measurement range
    • Resistance from 100μΩ to 20MΩ
    • Capacitance from 100aF to 160F
    • Inductance from 1nH to 1600H
  • Programmable test signal
    • 16-bit amplitude adjustment up to 2.25Vpk
    • Frequency resolution of 0.2Hz
    • 16-bit DC bias setting up to ±2.5V
  • DC resistance measurements
  • 18 impedance measurement formats for C, R, L, Z and Y
  • Automated multi-point and parametric sweeps
  • Calibration and fixture compensation functions
    • Automated calibration routines for measurement traceability
    • Calibration coefficient storage in non-volatile memory
    • Compensation eliminates the effect of fixture parasitics

For a complete evaluation solution, both boards must be purchased:

  • ADMX2001B
  • EVAL-ADMX2001EBZ

Product Details

The ADMX2001 is a measurement module that simplifies the development of impedance measurement systems or can be used to enhance the capabilities of existing test platforms. Using high-performance mixed-signal and processing algorithms, the ADMX2001 can measure changes in capacitance as small as 0.1fF and resistance values up to 20MΩ, often required to test semiconductor devices, electronic components, and sensors. Moreover, built-in measurement algorithms enable the ADMX2001 to deliver fully calibrated complex impedance or admittance measurement results in various formats, including parallel and series combinations of resistance, capacitance, and inductance.

Applications

  • Automated test equipment
  • Semiconductor characterization
  • Wafer acceptance test
  • Electrical Impedance Spectroscopy
  • Impedance network analysis
  • Battery test

EVAL-HSAMP-1

Universal Evaluation Board for Single High Speed Operational Amplifiers

Features and Benefits

  • Enables quick breadboarding/prototyping
  • User defined circuit configuration
  • Edge mounted Subminiature Version A (SMA) connector
  • provisions Easy connection to test equipment and other circuits

Product Details

The Universal Single High Speed Amplifier Evaluation Boards are bare boards that enable users to quickly prototype a variety of amplifier circuits, which minimizes risk and reduces time to market. These boards are all RoHs Compliant. See ordering guide below on what board to order by lead count and package.

Resources

AD-PAARRAY3552R-SL
RF Front-end GaN Power Amplifier Biasing, Protection, and Control Reference Design
AD-PAARRAY3552R-SL Block Diagram AD-PAARRAY3552R-SL Board Photo Angle View AD-PAARRAY3552R-SL Board Photo Top View AD-PAARRAY3552R-SL Board Photo Bottom View
EVAL-ADMX2001
High-Performance Precision Impedance Analyzer Measurement Module
EVAL-ADMX2001EBZKIT Evaluation Board EVAL-ADMX2001EBZKIT Evaluation Board - Top View ADMX2001 Evaluation Board ADMX2001 Evaluation Board - Top View ADMX2001 Evaluation Board - Bottom View EVAL-ADMX2001EBZ Evaluation Board EVAL-ADMX2001EBZ Evaluation Board - Top View EVAL-ADMX2001EBZ Evaluation Board - Bottom View
EVAL-HSAMP-1
Universal Evaluation Board for Single High Speed Operational Amplifiers

Reference Designs

Figure 1. CN0566 Simplified Block Diagram
CN0566 Circuits from the lab

Phased Array (Phaser) Development Platform

Features and Benefits

  • 10 GHz to 10.5 GHZ Beamsteering Platform
  • 360 degree Phase Shift w/ 2.8 Degree Resolution
  • 31 dB Amplitude Tuning Range w/ 0.5 dB Resolution.
  • 8-Element Linear Array Antenna
  • Digitized with PlutoSDR
  • Runs directly on a Raspberry Pi
Photodiode Preamp System with Dark Current Compensation
CN0272 Circuits from the lab

2 MHz Bandwidth PIN Photodiode Preamp with Dark Current Compensation

Features and Benefits

  • High speed photodiode signal conditioning circuit
  • 91dB dynamic range and circuit consumes only 40 mA
  • Dark current compensation
  • Spectral range from 400 nm to 1050 nm
  • Well suited for portable high speed applications
Block Diagram of ADF4159, AD8065 Active Loop Filter, and 11.4 GHz to 12.8 GHz VCO
CN0302 Circuits from the lab

Ultra-Fast Settling PLL with RF to 13 GHz

Features and Benefits

  • Up to 13GHz RF output PLL
  • 5μs settling time for 200MHz frequency jump
Block Diagram of the Translation Loop Synthesizer
CN0369 Circuits from the lab

Translation Phase Locked Loop Synthesizer with Low Phase Noise

Features and Benefits

  • Translation Loop Synthesizer 
  • 5GHz to 5.4GHz RF Output 
  • Low Phase Noise
Multichannel Data Acquisition Circuit
CN0269 Circuits from the lab

18-Bit, 1.33 MSPS, 16-Channel Data Acquisition System

Features and Benefits

  • 18-Bit, 16-Channel Data Acquisition
  • 16 single-ended, 8 differential inputs
  • 1.33MSPS sampling rate
  • 250kHz channel switching rate
CN0566
Phased Array (Phaser) Development Platform
Figure 1. CN0566 Simplified Block Diagram
EVAL-CN0566-RPIZ Phased Array Development Kit
EVAL-CN0566-RPIZ Phased Array Development Kit
EVAL-CN0566-RPIZ KIT - Angle View
EVAL-CN0566-RPIZ KIT - Angle View
CN0272
2 MHz Bandwidth PIN Photodiode Preamp with Dark Current Compensation
Photodiode Preamp System with Dark Current Compensation
CN0302
Ultra-Fast Settling PLL with RF to 13 GHz
Block Diagram of ADF4159, AD8065 Active Loop Filter, and 11.4 GHz to 12.8 GHz VCO
ADF4159 Evaluation Board
ADF4159 Evaluation Board - Top View
ADF4159 Evaluation Board - Bottom View
CN0369
Translation Phase Locked Loop Synthesizer with Low Phase Noise
Block Diagram of the Translation Loop Synthesizer
EVAL-CN0369-SDPZ PCB Photo
CN0269
18-Bit, 1.33 MSPS, 16-Channel Data Acquisition System
Multichannel Data Acquisition Circuit

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