Datasheet > 驱动程序和接口 > 线路驱动器或接收器> ADA4941-1YRZ-R7

ADA4941-1YRZ-R7

更新时间： 2024-11-26 12:29:07

品牌	Logo	应用领域
亚德诺 - ADI		线路驱动器或接收器驱动程序和接口接口集成电路光电二极管
页数	文件大小	规格书
24页	500K
描述
Single-Supply, Differential 18-Bit ADC Driver

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数据手册
替代型号

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ADA4941-1YRZ-R7 数据手册

Single-Supply, Differential

18-Bit ADC Driver

ADA4941-1

FUNCTIONAL BLOCK DIAGRAM

FEATURES

Single-ended-to-differential converter

Excellent linearity

Distortion −110 dBc @100 KHz for V_O, dm = 2 V p-p

Low noise: 10.2 nV/√Hz, output-referred, G = 2

Extremely low power: 2.2 mA (3 V supply)

High input impedance: 24 MΩ

REF

V+

DIS

V–

User-adjustable gain

OUT+

OUT–

High speed: 31 MHz, −3 dB bandwidth (G = +2)

Fast settling time: 300 ns to 0.005% for a 2 V step

Low offset: 0.8 mV max, output-referred, G = 2

Rail-to-rail output

Figure 1.SOIC/LSCSP Pinout

Disable feature

Wide supply voltage range: 2.7 V to 12 V

Available in space-saving, 3 mm × 3 mm LFCSP

–60

–65

–70

–75

= 6V p-p

–80

–85

APPLICATIONS

–90

Single-supply data acquisition systems

Instrumentation

Process control

Battery-power systems

Medical instrumentation

–95

–100

–105

–110

–115

–120

–125

–130

–135

–140

= 2V p-p

HD2

HD3

HD2

HD3

0.1

FREQUENCY (kHz)

1000

100

Figure 2. Distortion vs. Frequency at Various Output Amplitudes

GENERAL DESCRIPTION

The ADA4941-1 is a low power, low noise differential driver for

ADCs up to 18 bits in systems that are sensitive to power. The

ADA4941-1 is configured in an easy-to-use, single-ended-to-

differential configuration and requires no external components

for a gain of 2 configuration. A resistive feedback network can

be added to achieve gains greater than 2. The ADA4941-1

provides essential benefits, such as low distortion and high

SNR, that are required for driving high resolution ADCs.

The ADA4941-1 is ideal for driving the 16-bit and 18-bit

PulSAR® ADCs such as the AD7687, AD7690, and AD7691.

The ADA4941-1 is manufactured on ADI’s proprietary second-

generation XFCB process, which enables the amplifier to

achieve 18-bit performance on low supply currents.

The ADA4941-1 is available in a small 8-lead LFCSP as well as a

standard 8-lead SOIC and is rated to work over the extended

industrial temperature range, −40°C to +125°C.

With a wide input voltage range (0 V to 3.9 V on a single 5 V

supply), rail-to-rail output, high input impedance, and a user-

adjustable gain, the ADA4941-1 is designed to drive single-

supply ADCs with differential inputs found in a variety of low

power applications, including battery-operated devices and

single-supply data acquisition systems.

Rev. C

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

rightsof third parties that may result fromits 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 andregisteredtrademarks are the property of their respective owners.

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

Tel: 781.329.4700

www.analog.com

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ADA4941-1YRZ-R7 替代型号

型号	品牌	替代类型	描述	数据表
ADA4941-1YRZ-RL	ADI	类似代替	Single-Supply, Differential 18-Bit ADC Driver
ADA4941-1YRZ	ADI	类似代替	Single-Supply, Differential 18-Bit ADC Driver

与ADA4941-1YRZ-R7相关器件

型号	品牌	获取价格	描述	数据表
ADA4941-1YRZ-RL	ADI	获取价格	Single-Supply, Differential 18-Bit ADC Driver
ADA4945-1	ADI	获取价格	High Speed Offset Drift Fully Differential ADC Driver
ADA4945-1ACPZ-R2	ADI	获取价格	High Speed Offset Drift Fully Differential ADC Driver
ADA4945-1ACPZ-R7	ADI	获取价格	High Speed Offset Drift Fully Differential ADC Driver
ADA4945-1ACPZ-RL	ADI	获取价格	High Speed Offset Drift Fully Differential ADC Driver
ADA4945-1CP-EBZ	ADI	获取价格	High Speed Offset Drift Fully Differential ADC Driver
ADA4950-1	ADI	获取价格	Low Power, Selectable Gain Differential ADC Driver, G = 1, 2, 3
ADA4950-1_16	ADI	获取价格	Low Power, Selectable Gain Differential ADC Driver, G = 1, 2, 3
ADA4950-1YCP-EBZ	ADI	获取价格	Low Power, Selectable Gain Differential ADC Driver, G = 1, 2, 3
ADA4950-1YCPZ-R2	ADI	获取价格	Low Power, Selectable Gain Differential ADC Driver, G = 1, 2, 3

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