Datasheet > LTC6420-20

LTC6420-20

更新时间： 2024-11-22 14:57:59

品牌	Logo	应用领域
亚德诺 - ADI		放大器驱动驱动器
页数	文件大小	规格书
14页	222K
描述
双通道匹配 1.8GHz 差分放大器/ADC 驱动器

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中文翻译

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数据手册

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LTC6420-20 数据手册

LTC6420-20

Dual Matched

1.8GHz Differential

Ampliﬁers/ADC Drivers

FEATURES

DESCRIPTION

TheLTC^®6420-20isadualhigh-speeddifferentialampliﬁer

targeted at processing signals from DC to 300MHz. The

part has been speciﬁcally designed to drive 12-, 14- and

16-bitADCswithlownoiseandlowdistortion,butcanalso

be used as a general-purpose broadband gain block.

Matched Gain ±±0.dꢀ

Matched Phase ±±0.1 at .±±MꢁH

Channel Separation 8±dꢀ at .±±MꢁH

1.8GHz –3dB Bandwidth; Fixed Gain of 10V/V (20dB)

IMD3 = –84dBc at 100MHz, 2V

P-P

Equivalent OIP3 = 46dBm at 100MHz

The LTC6420-20 is easy to use, with minimal support

circuitry required. The output common mode voltage

is set using an external pin, independent of the inputs,

whicheliminatestheneedfortransformersorAC-coupling

capacitors in many applications. The gain is internally

ﬁxed at 20dB (10V/V).

1nV/√Hz Internal Op Amp Noise

6.2dB Noise Figure

Differential Inputs and Outputs

Rail-to-Rail Output Swing

80mA Supply Current (240mW) per Ampliﬁer

1.1V to 1.6V Output Common Mode Voltage,

Adjustable

DC- or AC-Coupled Operation

The LTC6420-20 saves space and power compared to

alternativesolutionsusingIFgainblocksandtransformers.

The LTC6420-20 is packaged in a compact 20-lead

3mm × 4mm QFN package and operates over the –40°C

to 85°C temperature range.

20-Lead 3mm × 4mm × 0.75mm QFN Package

APPLICATIONS

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.

Differential ADC Driver

Single Ended to Differential Conversion

IF Sampling (Diversity) Receivers

Broadband I/Q Ampliﬁers

Satellite Communications

TYPICAL APPLICATION

Distribution of Gain Match

Matched Dual Ampliﬁer with Output Common Mode ꢀiasing

0.1μF

1000pF

OCM

V+ A

ENABLEA

OCM

= 200Ω

1000Ω

0.1μF

100Ω

12.5Ω

–

–IN A

+OUT A

OCM

+IN A

V–

–OUT A

V–

1000Ω

0.1dB GAIN MATCHING

0.1° PHASE MATCHING AT 100MHz

LTC6420-20

100Ω

–0.25 –0.15 –0.05

0.05

0.15

0.25

0.1μF

CHANNEL-TO-CHANNEL GAIN MATCH (dB)

12.5Ω

642020 TA01b

+IN B

–IN B

–OUT B

+OUT B

OCM

100Ω

–

1000Ω

= 200Ω

V+ B

ENABLEB

OCM

0.1μF

1000pF

642020 TA01a

642020fb

12 3 4 5 6 7...14

中文翻译

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与LTC6420-20相关器件

型号	品牌	获取价格	描述	数据表
LTC6420CUDC-20#PBF	Linear	获取价格	LTC6420-20 - Dual Matched 1.8GHz Differential Amplifiers/ADC Drivers; Package: QFN; Pins:
LTC6420CUDC-20#TRPBF	Linear	获取价格	LTC6420-20 - Dual Matched 1.8GHz Differential Amplifiers/ADC Drivers; Package: QFN; Pins:
LTC6420CUDC-20-PBF	Linear	获取价格	Dual Matched 1.8GHz Differential Amplifi ers/ADC Drivers
LTC6420CUDC-20-TRPBF	Linear	获取价格	Dual Matched 1.8GHz Differential Amplifi ers/ADC Drivers
LTC6420IUDC-20#PBF	Linear	获取价格	LTC6420-20 - Dual Matched 1.8GHz Differential Amplifiers/ADC Drivers; Package: QFN; Pins:
LTC6420IUDC-20#TRPBF	Linear	获取价格	LTC6420-20 - Dual Matched 1.8GHz Differential Amplifiers/ADC Drivers; Package: QFN; Pins:
LTC6420IUDC-20-PBF	Linear	获取价格	Dual Matched 1.8GHz Differential Amplifi ers/ADC Drivers
LTC6420IUDC-20-TRPBF	Linear	获取价格	Dual Matched 1.8GHz Differential Amplifi ers/ADC Drivers
LTC6421-20	Linear	获取价格	Dual Matched 1.3GHz Differential Amplifi ers/ADC Drivers
LTC6421-20	ADI	获取价格	双通道匹配 1.3GHz 差分放大器/ADC 驱动器

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