Signal Conditioning Operational Amplifiers (Op Amps) High Speed Amplifiers (GBW > 50MHz)
Signal Conditioning Operational Amplifiers (Op Amps) Differential Output Amplifiers
 RF & Wireless IF Amplifiers / ADC Drivers

LT6402-6 - 300MHz Low Distortion, Low Noise Differential Amplifier/ ADC Driver (AV = 6dB)

Features

  • 300 MHz –3dB Bandwidth
  • Fixed Gain of 6dB
  • Low Distortion:
      49dBm OIP3, –85dBc HD3 (20MHz, 2VP-P)
  • Low Noise:
      18.6dB NF, en = 3.8nV/√Hz (20MHz)
  • Differential Inputs and Outputs
  • Additional Filtered Outputs
  • Adjustable Output Common Mode Voltage
  • DC- or AC-Coupled Operation
  • Minimal Support Circuitry Required
  • Small 0.75mm Profile 16-Lead 3mm × 3mm QFN Package

Typical Application

LT6402-6 Typical Application
LT6402-6 Typical Application

Description

The LT6402-6 is a low distortion, low noise differential amplier/ADC driver for use in applications from DC to 300MHz. The LT6402-6 has been designed for ease of use, with minimal support circuitry required. Exceptionally low input-referred noise and low distortion (with either single-ended or differential inputs) make the LT6402-6 an excellent solution for driving high speed 12-bit and 14-bit ADCs. In addition to the normal unfiltered outputs (+OUT and –OUT), the LT6402-6 has a built-in 75MHz differential low pass filter and an additional pair of filtered outputs (+OUTFILTERED, –OUTFILTERED) to reduce external filtering components when driving high speed ADCs. The output common mode voltage is easily set via the VOCM pin, eliminating an output transformer or AC-coupling capacitors in many applications.

The LT6402-6 is designed to meet the demanding requirements of communications transceiver applications. It can be used as a differential ADC driver, a general-purpose differential gain block, or in other applications requiring differential drive. The LT6402-6 can be used in data acquisition systems required to function at frequencies down to DC.

The LT6402-6 operates on a 5V supply and consumes 30mA. It comes in a compact 16-lead 3mm × 3mm QFN package and operates over a –40°C to 85°C temperature range.

Packaging

CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
Drawing		 RoHS
LT6402CUD-6#PBF 3x3 QFN-16 UD C 05-08-1691 Yes
LT6402CUD-6#TRPBF 3x3 QFN-16 UD C 05-08-1691 Yes
LT6402IUD-6#PBF 3x3 QFN-16 UD I 05-08-1691 Yes
LT6402IUD-6#TRPBF 3x3 QFN-16 UD I 05-08-1691 Yes


LT6402-6 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
(1-99)		 Price
(1k)*		 RoHS
LT6402CUD-6#PBF 3x3 QFN-16 C $3.39 $2.39 Yes
LT6402CUD-6#TRPBF 3x3 QFN-16 C $2.45 Yes
LT6402IUD-6#PBF 3x3 QFN-16 I $3.90 $2.75 Yes
LT6402IUD-6#TRPBF 3x3 QFN-16 I $2.81 Yes
Buy Now • Request Samples
* 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 Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC954A-A LT6402-6 300MHz diff In/Out ADC Driver $50.00
Buy Now
Click here to view our complete list of demo boards

Applications

  • Differential ADC Driver for:
      Imaging
      Communications
  • Differential Driver/Receiver
  • Single Ended to Differential Conversion
  • Differential to Single Ended Conversion
  • Level Shifting
  • IF Sampling Receivers
  • SAW Filter Interfacing/Buffering

People Who Viewed This Product Also Viewed

Product Notifications

Please login to your MyLinear account for notifications of datasheet updates, new document releases and LTspice model announcements for your favorite products. If you do not have a MyLinear account you may Sign Up Now.

Forgot your password? Click here.
Need help? Email mylinear@linear.com with questions and comments.

Design Tools

LTspice

LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice

Models for the following parts are available in LTspice:
LT6402-12
LT6402-20
LT6402-6

Technical Support