Datasheet > OPA628

OPA628

更新时间： 2024-11-22 22:50:51

品牌	Logo	应用领域
BB		运算放大器
页数	文件大小	规格书
13页	175K
描述
Low Distortion Wideband OPERATIONAL AMPLIFIER

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OPA628 数据手册

OPA628

Low Distortion Wideband

OPERATIONAL AMPLIFIER

FEATURES

● EXCELLENT DIFFERENTIAL GAIN: 0.015%

● EXCELLENT DIFFERENTIAL PHASE: 0.015°

● LOW DISTORTION: 90dB SFDR

APPLICATIONS

● BROADCAST QUALITY VIDEO

● MEDICAL IMAGING

● LOW NOISE PREAMPLIFIER

● PRECISION ADC/DAC BUFFER

● TELECOMMUNICATIONS

● ANALYTICAL INSTRUMENTS

● ACTIVE FILTERS

● TWO-TONE THIRD-ORDER INTERCEPT:

60dBm

● LOW NOISE: 2.5nV/√Hz

● LOW NOISE FIGURE: 9dB

● BANDWIDTH (Gain = +1): 160MHz

● 0.1dB GAIN FLATNESS: 30MHz

● LOW OFFSET VOLTAGE: 500µV

● DC RESTORATION CIRCUITS

DESCRIPTION

The OPA628 is a low distortion, wideband operational

amplifier. It features low differential gain error of

0.015% and low differential phase error of 0.015° at

NTSC and PAL frequencies with a 150Ω load (a back-

terminated 75Ω cable). The 0.1dB gain flatness to

30MHz, and the excellent differential gain and phase

make the OPA628 ideal for broadcast quality video

applications. In addition, the spurious free dynamic

range of 90dB makes the OPA628 an excellent choice

to buffer the input of precision Analog-to-Digital con-

verters. It can also be used to provide a buffer for the

output of precision high speed Digital-to-Analog con-

verters. The two-tone third-order intercept of the

OPA628 is 60dBm.

additionally enhanced by separating the power sup-

plies to the input and output stages requiring four

power supply connections as shown in the block

diagram below. This separation of supplies eliminates

the effects of package and wire bond parasitic capaci-

tance and inductance. The OPA628 is powered with

±5VDC supplies for low power dissipation. The

OPA628 is available in 8-pin SOIC package. The

temperature range is –40°C to +85°C.

+V_CC, Input Stage

+V_CC, Output Stage

Active

Load

The OPA628 is a unity gain stable, voltage feedback

operational amplifier. It has all of the benefits asso-

ciated with voltage feedback amplifiers including

high input impedance, high common mode rejection,

and symmetrical differential input flexibility. The

unity gain bandwidth of the OPA628 is 160MHz. The

low noise of 2.5nV/√Hz and low noise figure of 9dB

(R_S= 50Ω) make the OPA628 very useful in preci-

sion applications requiring wide dynamic range.

Non-Inverting

Input

Output

Inverting

Input

The superior distortion performance of the OPA628 is

achieved by its multistage architecture which provides

high open-loop gain. The distortion performance is

–V_CC, Output Stage

–V_CC, Input Stage

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

PDS-1204B

Printed in U.S.A. March, 1998

OPA628

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与OPA628相关器件

型号	品牌	获取价格	描述	数据表
OPA628AU	BB	获取价格	Low Distortion Wideband OPERATIONAL AMPLIFIER
OPA628U	BB	获取价格	EVALUATION FIXTURE
OPA62K5	TI	获取价格	Wideband, Unity-Gain Stable, FET-Input OPERATIONAL AMPLIFIER
OPA631	TI	获取价格	200MHz, CMOS OPERATIONAL AMPLIFIER WITH SHUTDOWN
OPA631	BB	获取价格	Low Power, Single-Supply OPERATIONAL AMPLIFIERS TM
OPA631/OPA632	BB	获取价格	OPA631. OPA632 - SpeedPlus Low Power. Single-Supply OPERATIONAL AMPLIFIERS
OPA6316	KODENSHI	获取价格	Orange LED Chip
OPA6316H	KODENSHI	获取价格	Orange LED Chip
OPA631N	BB	获取价格	Low Power, Single-Supply OPERATIONAL AMPLIFIERS TM
OPA631N	TI	获取价格	OPERATIONAL AMPLIFIERS

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