Datasheet > ADA4938-1ACPZ-R2

ADA4938-1ACPZ-R2

更新时间： 2024-11-23 03:13:19

品牌	Logo	应用领域
亚德诺 - ADI		驱动器
页数	文件大小	规格书
14页	298K
描述
Ultra-Low Distortion Differential ADC Driver

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ADA4938-1ACPZ-R2 数据手册

Ultra-Low Distortion

Differential ADC Driver

Preliminary Technical Data

ADA4938-1

FEATURES

FUNCTIONAL BLOCK DIAGRAM

Extremely low harmonic distortion

−112 dBc HD2 @ 10 MHz

−79 dBc HD2 @ 50 MHz

−102 dBc HD3 @ 10 MHz

−81 dBc HD3 @ 50 MHz

Low input voltage noise: 2.2 nV/√Hz

High speed

−3 dB bandwidth of 1.5 GHz, G = 1

Slew rate: 4700 V/μs

0.1 dB gain flatness to 125 MHz

Fast overdrive recovery of 4 ns

1 mV typical offset voltage

Externally adjustable gain

–

Differential to differential or single-ended to differential

operation

Adjustable output common-mode voltage

Wide Supply Voltage Range: +5 V & 5 V

Pb-free 3 mm x 3 mm LFCSP package

Figure 1.

APPLICATIONS

ADC drivers

Single-ended-to-differential converters

IF and baseband gain blocks

Differential buffers

Line drivers

GENERAL DESCRIPTION

The ADA4938-1 is a low noise, ultra-low distortion, high speed

differential amplifier. It is an ideal choice for driving high

performance ADCs with resolutions up to 16 bits from dc to 70

MHz. The output common mode voltage is adjustable over a

wide range, allowing the ADA4938-1 to match the input of the

ADC. The internal common mode feedback loop also provides

exceptional output balance as well as suppression of even-order

harmonic distortion products.

The ADA4938-1 is fabricated using ADI’s proprietary third

generation high-voltage XFCB process, enabling it to achieve

very low levels of distortion with input voltage noise of only 2.2

nV/√Hz. The low dc offset and excellent dynamic performance

of the ADA4938-1 make it well suited for a wide variety of data

acquisition and signal processing and applications.

The ADA4938-1 is available in a Pb-free, 3 mm x 3mm lead

frame chip scale package (LFCSP). Pinout has been optimized

to facilitate layout and minimize distortion. The part is

specified to operate over the extended industrial temperature

range of −40°C to +85°C.

Full differential and single-ended to differential gain

configurations are easily realized with the ADA4938-1. A

simple external feedback network of four resistors determines

the amplifier’s closed-loop gain.

Rev. PrD

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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ADA4938-1ACPZ-R2 替代型号

型号	品牌	替代类型	描述	数据表
ADA4938-1ACPZ-R7	ADI	类似代替	Ultra-Low Distortion Differential ADC Driver
LTC6403IUD-1#PBF	Linear	功能相似	LTC6403-1 - 200MHz, Low Noise, Low Power Fully Differential Input/Output Amplifier/Driver;
ADA4938-1ACPZ-RL	ADI	功能相似	Ultra-Low Distortion Differential ADC Driver

与ADA4938-1ACPZ-R2相关器件

型号	品牌	获取价格	描述	数据表
ADA4938-1ACPZ-R7	ADI	获取价格	Ultra-Low Distortion Differential ADC Driver
ADA4938-1ACPZ-RL	ADI	获取价格	Ultra-Low Distortion Differential ADC Driver
ADA4938-1YCPZ-R2	ADI	获取价格	Ultra-Low Distortion Differential ADC Driver
ADA4938-1YCPZ-R7	ADI	获取价格	Ultra-Low Distortion Differential ADC Driver
ADA4938-1YCPZ-RL	ADI	获取价格	Ultra-Low Distortion Differential ADC Driver
ADA4938-2	ADI	获取价格	Operational Amplifiers Selection Guide
ADA4938-2_15	ADI	获取价格	Ultralow Distortion Differential ADC Driver
ADA4938-2ACPZ-R2	ADI	获取价格	Ultralow Distortion Differential ADC Driver
ADA4938-2ACPZ-R7	ADI	获取价格	Ultralow Distortion Differential ADC Driver
ADA4938-2ACPZ-RL	ADI	获取价格	Ultralow Distortion Differential ADC Driver

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