Datasheet > LTC6431-15

LTC6431-15

更新时间： 2024-11-21 12:25:47

品牌	Logo	应用领域
凌特 - Linear		驱动器放大器
页数	文件大小	规格书
28页	1703K
描述
High Linearity Differential RF/IF Amplifier/ADC Driver

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LTC6431-15 数据手册

LTC6430-15

High Linearity Differential

RF/IF Amplifier/ADC Driver

FeaTures

DescripTion

The LTC^®6430-15 is a differential gain block amplifier

designed to drive high resolution, high speed ADCs with

excellent linearity beyond 1000MHz and with low associ-

atedoutputnoise. TheLTC6430-15operatesfromasingle

5V power supply and consumes only 800mW.

50.0dBm OIP3 at 240MHz into a 100Ω Diff Load

NF = 3.0dB at 240MHz

20MHz to 2000MHz Bandwidth

15.2dB Gain

A-Grade 100% OIP3 Tested at 240MHz

1.0nV/√Hz Total Input Noise

Initsdifferentialconfiguration,theLTC6430-15candirectly

drive the differential inputs of an ADC. Using 1:2 baluns,

the device makes an excellent 50Ω wideband balanced

amplifier. While using 1:1.33 baluns, the device makes

a high fidelity 50MHz to 1000MHz 75Ω CATV amplifier.

S11 < –15dB Up to 1.2GHz

S22 < –15dB Up to 1.2GHz

>2.75V Linear Output Swing

P-P

P1dB = 24.0dBm

Insensitive to V Variation

The LTC6430-15 is designed for ease of use, requiring a

minimum of support components. The device is internally

matched to 100Ω differential source/load impedance. On-

chipbiasandtemperaturecompensationensureconsistent

performance over environmental changes.

100Ω Differential Gain-Block Operation

Input/Output Internally Matched to 100Ω Diff

Single 5V Supply

DC Power = 800mW

Unconditionally Stable

4mm × 4mm, 24-Lead QFN Package

The LTC6430-15 uses a high performance SiGe BiCMOS

process for excellent repeatability compared with similar

GaAsamplifiers.AllA-gradeLTC6430-15devicesaretested

and guaranteed for OIP3 at 240MHz. The LTC6430-15 is

housed in a 4mm × 4mm, 24-lead, QFN package with an

exposedpadforthermalmanagementandlowinductance.

For a single-ended 50Ω IF gain block with similar perfor-

applicaTions

Differential ADC Driver

Differential IF Amplifier

OFDM Signal Chain Amplifier

50Ω Balanced IF Amplifier

75Ω CATV Amplifier

mance, see the related LTC6431-15.

700MHz to 800MHz LTE Amplifier

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. All other trademarks are the property of their respective owners.

OIP3 vs Frequency

Typical applicaTion

Differential 16-Bit ADC Driver

= 5V

CHOKES

1:2

BALUN

ADC

= 5V

LTC6430-15

50Ω

= 2dBm/TONE

OUT

= Z

= 100Ω DIFF.

OUT

= 25°C

= 100Ω

FILTER

LOAD

SOURCE

643015 TA01a

DIFFERENTIAL

200

400

600

800 1000 1200

FREQUENCY (MHz)

643015 TA01b

643015f

12 3 4 5 6 7...28

中文翻译

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