LTC6269

RECOMMENDED FOR NEW DESIGNS

Dual 500MHz Ultra-Low Bias Current FET Input Op Amp

Data Sheet Product Selection Table
Part Models
9
1ku List Price
Starting From $5.83
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Part Details

  • Gain Bandwidth Product: 500MHz
  • –3dB Bandwidth (A = 1): 350MHz
  • Low Input Bias Current:
    • ±3fA Typ. Room Temperature
    • 4pA Max at 125°C
  • Current Noise (100kHz): 5.5fA/√Hz
  • Voltage Noise (1MHz): 4.3nV/√Hz
  • Extremely Low CIN 450fF
  • Rail-to-Rail Output
  • Slew Rate: 400V/μs
  • Supply Range: 3.1V to 5.25V
  • Quiescent Current: 16.5mA
  • Harmonic Distortion (2VP-P):
    • –100dB at 1MHz
    • –80dB at 10MHz
  • Operating Temp Range: –40°C to 125°C
  • Single in 8-Lead SO-8, 6-Lead TSOT-23 Packages
  • Dual in 8-Lead MS8, 3mm × 3mm 10-Lead DFN 10 Packages
LTC6269
Dual 500MHz Ultra-Low Bias Current FET Input Op Amp
20kΩ Gain 65MHz Trans-Impedance Amplifier 20kΩ TIA Frequency Response Product Package 1 Product Package 2 Product Package 3 Product Package 4
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Technical Articles 2

Spec Notice 1

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • LTC6269
  • LTC6269-10

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

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

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
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
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schematic 8
EVAL-ADMX1001

Ultra-low Distortion Signal Generator Measurement Module with Fully Differential Input Acquisition Channel

Buy Now View Details

Features and Benefits

  • Ultra-low distortion, high-resolution source
    • DC, 50Hz to 40kHz Frequency Range
    • Proprietary digital pre-distortion (DPD) algorithm
    • –130dBc THD @ 1kHz (typ.)
    • Arbitrary waveform generation (AWG) with on-board pattern memory
    • Differential (balanced) output up to 3.5VRMS
    • Fast pattern switching between multiple stored waveforms
  • Fully Differential input Acquisition Channel
  • Small form-factor (60mm x 40mm)
  • Low power, 1W typ. (quiescent)
  • SPI interface for integration into test and measurement systems

Product Details

The ADMX1001 is an ultra-low distortion sinewave and high-resolution arbitrary waveform generator with an acquisition channel. This high-performance module demonstrates a proprietary digital pre-distortion algorithm that reduces signal distortion below levels that can be achieved with high-performance digital-to-analog converters (DAC) and amplifiers alone. Its differential output can be set to common-mode levels often required to test high-performance analog-to-digital converters (ADC), audio codecs, and other audio ICs and systems. The signal generator and the acquisition channel can be individually controlled using separate, easy to use, SPI interfaces - combined with the module's small-form factor, the ADMX1001 can be easily embedded into test systems, or simply used on the bench for measurement and characterization.

APPLICATIONS

  • High-end audio test
  • Analog-to-digital converter characterization and test
  • Sensor and transducer test
  • Frequency response and network analysis
  • ATE

eval board
schematic 9
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schematic 13
EVAL-ADMX1002

Ultra-low Distortion Signal Generator Measurement Module

Buy Now View Details

Features and Benefits

  • Ultra-low distortion, high-resolution source
    • DC, 50Hz to 40kHz Frequency Range
    • Proprietary digital pre-distortion (DPD) algorithm
    • –130dBc THD @ 1kHz (typ.)
    • Arbitrary waveform generation (AWG) with on-board pattern memory
    • Differential (balanced) output up to 3.6VRMS
  • Fast pattern switching between multiple stored waveforms
  • Small form-factor (60mm x 40mm)
  • Low power, 1W typ. (quiescent)
  • SPI interface for integration into test and measurement systems

Product Details

The ADMX1002 is an ultra-low distortion sinewave and high-resolution arbitrary waveform generator. This high-performance module demonstrates a proprietary digital pre-distortion algorithm that reduces signal distortion below levels that can be achieved with high-performance digital-to-analog converters (DAC) and amplifiers alone. Its differential output can be set to common-mode levels often required to test high-performance analog-to-digital converters (ADC), audio codecs, and other audio ICs and systems. With an easy-to-use SPI interface and small-form factor, the ADMX1002 can be easily embedded into test systems, or simply used on the bench for measurement and characterization.

APPLICATIONS

  • High-end audio test
  • Analog-to-digital converter characterization and test
  • Sensor and transducer test
  • Frequency response and network analysis
  • ATE
EVAL-ADMX1001
Ultra-low Distortion Signal Generator Measurement Module with Fully Differential Input Acquisition Channel
ADMX1001 - Top View ADMX1001 - Bottom View ADMX1001 - Angle View ADMX1001FMCZ - Top View ADMX1001FMCZ - Bottom View ADMX1001FMCZ - Angle View EVAL-ADMX100X-FMCZKIT - Angle View EVAL-ADMX100X-FMCZKIT - Top View
EVAL-ADMX1002
Ultra-low Distortion Signal Generator Measurement Module
EVAL-ADMX100X-FMCZKIT - Angle View EVAL-ADMX100X-FMCZKIT - Top View ADMX1002 - Angle View ADMX1002 - Top View ADMX1002 - Bottom View

Latest Discussions

36 Weeks Ago
RE: What is the gain bandwidth product of the IC LTC6269/LTC6268 ?
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