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LT6411
650MHz Differential ADC Driver/Dual Selectable Gain Amplifier
Overview
Features and Benefits
- 650MHz –3dB Small-Signal Bandwidth
- 600MHz –3dB Large-Signal Bandwidth
- High Slew Rate: 3300V/µs
- Easily Configured for Single-Ended to Differential Conversion
- 200MHz ±0.1dB Bandwidth
- User Selectable Gain of +1, +2 and –1
- No External Resistors Required
- 46.5dBm Equivalent OIP3 at 30MHz When Driving an ADC
- IM3 with 2VP-P Composite, Differential Output:
- –87dBc at 30MHz
- –83dBc at 70MHz
- –77dB SFDR at 30MHz, 2VP-P Differential Output
- 6ns 0.1% Settling Time for 2V Step
- Low Supply Current: 8mA per Ampifier
- Differential Gain of 0.02%, Differential Phase of 0.01°
- 50dB Channel Separation at 100MHz
- Wide Supply Range: ±2.25V (4.5V) to ±6.3V (12.6V)
- 3mm × 3mm 16-Pin QFN Package
Product Details
The LT6411 is a dual amplifier with individually selectable gains of +1, +2 and –1. The amplifiers have excellent distortion performance for driving ADCs as well as excellent bandwidth and slew rate for video, data transmission and other high speed applications. Single-ended to differential conversion with a system gain of 2 is particularly straightforward by configuring one amplifier with a gain of +1 and the other amplifier with a gain of –1. The LT6411 can be used on split supplies as large as ±6V and on a single supply as low as 4.5V.
Each amplifier draws only 8mA of quiescent current when enabled. When disabled, the output pins become high impedance and each amplifier draws less than 350µA.
The LT6411 is manufactured on our proprietary, low voltage, complimentary, bipolar process and is available in the ultra-compact, 3mm × 3mm, 16pin QFN package.
Applications
- Differential ADC Driver
- Single-Ended to Differential Conversion
- Differential Video Line Driver
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (2)
Documentation
Reliability Data (1)
Evaluation Kit Manuals (2)
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.
Models for the following parts are available in LTspice:
Sys-Parameters
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 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.
Reference Materials
Product Selector Card (1)
Press Releases (1)
Technical Articles (2)
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.
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Sample & Buy
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.
