OPA644

更新时间： 2024-11-23 10:22:11

品牌	Logo	应用领域
BB		运算放大器
页数	文件大小	规格书
13页	102K
描述
Low Distortion Current Feedback OPERATIONAL AMPLIFIER

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OPA644 数据手册

OPA644

Low Distortion Current Feedback

OPERATIONAL AMPLIFIER

FEATURES

● SLEW RATE: 2500V/µs

DESCRIPTION

The OPA644 is a wideband precision current feed-

back operational amplifier featuring exceptionally high

open loop transimpedance and high slew rate. The

current feedback architecture allows for excellent

large signal bandwidth, even at high gains. The high

transimpedance allows this op amp to be used in

applications requiring 16 bits or more of accuracy.

This extra transimpedance at high bandwidths gives

very low distortion and low differential gain and

phase errors. The high slew rate and well-behaved

pulse response allow for superior large signal ampli-

fication in a variety of RF, video and other signal

processing applications. Fabricated on an advanced

complementary bipolar process, the OPA644 offers

exceptional performance in monolithic form.

● VERY LOW DIFFERENTIAL GAIN/PHASE

ERROR: 0.008%/0.009°

● LOW DISTORTION AT 5MHz: –85dBc

● HIGH BANDWIDTH: 500MHz

● HIGH OPEN LOOP TRANSIMPEDANCE:

2.0MΩ

● HIGH LINEARITY

● FAST 12-BIT SETTLING: 21ns to 0.01%

● UNITY-GAIN STABLE

APPLICATIONS

+V_S

7, 8

● HIGH-SPEED SIGNAL PROCESSING

● HIGH-RESOLUTION VIDEO

● PULSE AMPLIFICATION

● COMMUNICATIONS

Gain Stage

Comp

I_BIAS

● ADC/DAC GAIN AMPLIFIER

● RF AMPLIFICATION

● MEDICAL IMAGING

● AUDIO AMPLIFICATION

In+

In–

V_OUT

Buffer

Comp

I_BIAS

Gain Stage

4, 5

–V_S

International Airport Industrial Park

•

Mailing Address: PO Box 11400, Tucson, AZ 85734

FAXLine: (800) 548-6133 (US/Canada Only)

•

Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706

•

Tel: (520) 746-1111 • Twx: 910-952-1111

Internet: http://www.burr-brown.com/

•

Cable: BBRCORP

•

Telex: 066-6491

•

FAX: (520) 889-1510

•

Immediate Product Info: (800) 548-6132

_PD1_S-1187D

1993 Burr-Brown Corporation

Printed in U.S.A. March, 1998

OPA644

12 3 4 5 6 7...13

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