Overview
Features and Benefits
- 50Ω Matched 20MHz to 1400MHz
- 20.8dB Power Gain
- 46.2dBm OIP3 at 240MHz Into 50Ω
- NF = 2.6dB at 240MHz
- 0.6nV/√Hz Total Input Noise
- S11 < –10dB Up to 2.0GHz
- S22 < –10dB Up to 1.4GHz
- >2.0VP-P Linear Output Swing
- P1dB = 22.0dBm
- 50Ω Single-Ended Input/Output
- Insensitive to VCC Variation
- A-Grade 100% OIP3 Tested at 240MHz
- Input/Output Internally Matched to 50Ω
- Single 5V Supply
Product Details
The LTC6431-20 is a gain block amplifier exhibiting excellent linearity at frequencies beyond 1000MHz and with low associated output noise.
The unique combination of linearity, low noise and low power dissipation make this an ideal candidate for many signal-chain applications. The LTC6431-20 is easy to use, requiring a minimum of external components. It is internally input/output matched to 50Ω and it draws only 93mA from a single 5V supply.
On-chip bias and temperature compensation maintain performance over environmental changes.
The LTC6431-20 uses a high performance SiGe BiCMOS process for excellent repeatability compared with similar GaAs amplifiers. All A-grade LTC6431-20 devices are tested and guaranteed for OIP3 at 240MHz. The LTC6431-20 is housed in a 4mm × 4mm 24-lead QFN package with an exposed pad for thermal management and low inductance.
Applications
- Single-Ended IF Amplifier
- ADC Driver
- CATV
Product Categories
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 (1)
Documentation & Resources
-
DC2077A - Demo Manual6/4/2014
-
High Speed Amplifiers/ADC Drivers4/29/2015
-
Tuned IF Amplifier Applications10/21/2016
Tools & Simulations
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.
S-Parameter
S2P
LTC6431-20 S-Parameters
42.00K
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 |
|---|---|---|---|---|
| LTC6431AIUF-20#PBF | Material Declaration | Reliability Data | 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) | |
| LTC6431AIUF-20#TRPBF | Material Declaration | Reliability Data | 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) | |
| LTC6431BIUF-20#PBF | Material Declaration | Reliability Data | 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) | |
| LTC6431BIUF-20#TRPBF | Material Declaration | Reliability Data | 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) | |
| Wafer Fabrication Data |
Sample & Buy
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Buy Now Pricing
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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
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Sampling
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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.