Overview

Features and Benefits

  • Programmable Differential Gain via Two External Resistors
  • Adjustable Output Common Mode Voltage
  • Operates and Specified with 3V, 5V, ±5V Supplies
  • 0.5dB Ripple 4th Order Lowpass Filter with 5MHz Cutoff
  • 82dB S/N with 3V Supply and 2VP-P Output
  • Low Distortion, 2VP-P, 800Ω Load 1MHz: 93dBc 2nd, 96dBc 3rd
  • Fully Differential Inputs and Outputs
  • Compatible with Popular Differential Amplifier Pinouts
  • Available in an SO-8 Package

Product Details

The LT6600-5 combines a fully differential amplifier with a 4th order 5MHz lowpass filter approximating a Chebyshev frequency response. Most differential amplifiers require many precision external components to tailor gain and bandwidth. In contrast, with the LT6600-5, two external resistors program differential gain, and the filter's 5MHz cutoff frequency and passband ripple are internally set. The LT6600-5 also provides the necessary level shifting to set its output common mode voltage to accommodate the reference voltage requirements of A/Ds.

Using a proprietary internal architecture, the LT6600-5 integrates an antialiasing filter and a differential amplifier/driver without compromising distortion or low noise performance. At unity gain the measured in band signal-to-noise ratio is an impressive 82dB. At higher gains the input referred noise decreases so the part can process smaller input differential signals without significantly degrading the output signal-to-noise ratio.

The LT6600-5 also features low voltage operation. The differential design provides outstanding performance for a 2VP-P signal level while the part operates with a single 3V supply.

For similar devices with other cutoff frequencies, refer to the LT6600-20, LT6600-10 and LT6600-2.5.

Applications

  • High Speed ADC Antialiasing and DAC Smoothing in Networking or Cellular Base Station Applications
  • High Speed Test and Measurement Equipment
  • Medical Imaging
  • Drop-in Replacement for Differential Amplifiers

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Tools & Simulations

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.

LTspice

Models for the following parts are available in LTspice:

LT6600-10
LT6600-15
LT6600-2
LT6600-2.5
LT6600-20
LT6600-5

Sys-Parameters

Sys-Parameter Models for Keysight Genesys

Sys-Parameter models contain behavioral parameters, such as P1dB, IP3, gain, noise figure and return loss, which describe nonlinear and linear characteristics of a device.

Design Tools

ADIsimRF

ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive data base of device models for ADI’s RF and mixed signal components.

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

Support & Discussions

LT6600-5 Discussions

RE: Questions for LTC6946
1 day(s) ago in RF and Microwave
RE: EVAL-AD7292SDZ J5 pinout
1 day(s) ago in Precision ADCs
RE: hmc998apm5e
1 day(s) ago in RF and Microwave

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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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Evaluation Boards Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.