1. Products
  2. Amplifiers
  3. Differential Amplifiers and ADC Drivers
  4. Fully Differential Amplifiers
  5. LT6600-20


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 20MHz Cutoff
  • 76dB S/N with 3V Supply and 2VP-P Output
  • Low Distortion, 2VP-P, 800Ω Load
    • 2.5MHz: 83dBc 2nd, 88dBc 3rd
    • 20MHz: 63dBc 2nd, 64dBc 3rd
  • Fully Differential Inputs and Outputs
  • SO-8 Package
  • Compatible with Popular Differential Amplifier Pinouts

Product Details

The LT6600-20 combines a fully differential amplifier with a 4th order 20MHz lowpass filter approximating a Chebyshev frequency response. Most differential amplifiers require many precision external components to tailor gain and bandwidth. In contrast, with the LT6600-20, two external resistors program differential gain, and the filter’s 20MHz cutoff frequency and passband ripple are internally set. The LT6600-20 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 LT6600-20 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 76dB. 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 LT6600-20 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.

The LT6600-20 is packaged in an SO-8 and is pin compatible with stand alone differential amplifiers.

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
LT6600-2.5
LT6600-20
LT6600-5

Sys-Parameter

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 Tool

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.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
LT6600CS8-20#PBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
LT6600CS8-20#TRPBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
LT6600IS8-20#PBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
LT6600IS8-20#TRPBF Material Declaration Reliability Data 8-Lead SOIC (Narrow 0.15 Inch)
Wafer Fabrication Data R460 Reliability Data

PCN-PDN Information

Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.

Sample & Buy


Ordering FAQs


See our Ordering FAQs for answers to questions about online orders, payment options and more.

 

Buy Now Pricing


(**) Displayed Buy Now Price and Price Range is based on small quantity orders.

 

List Pricing


(*)The 1Ku 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. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

 

Lead Times


Please see the latest communication from our CCO regarding lead times.

 

Sampling


A Sample link will be shown above, next to the part, only for parts that are included in our sample program. Selecting the Sample button will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.


Price Table Help

 

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.