Datasheet > OPA685N

OPA685N

更新时间： 2024-09-16 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
28页	284K
描述
Ultra-Wideband, Current-Feedback OPERATIONAL AMPLIFIER With Disable TM

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OPA685N 数据手册

OPA685

685

For most current data sheet and other product

information, visit www.burr-brown.com

Ultra-Wideband, Current-Feedback

OPERATIONAL AMPLIFIER With Disable

FEATURES

APPLICATIONS

●

GAIN = +2 BANDWIDTH (900MHz)

● LOW COST PRECISION IF AMPLIFIER

● CABLE MODEM UPSTREAM DRIVER

● BROADBAND VIDEO LINE DRIVER

● VERY WIDEBAND ADC BUFFER

● PORTABLE INSTRUMENTS

●

GAIN = +8 BANDWIDTH (420MHz)

● OUTPUT VOLTAGE SWING: ±3.6V

● ULTRA-HIGH SLEW RATE: 4200V/µs

● 3RD-ORDER INTERCEPT: > 40dBm (f < 50MHz)

● LOW POWER: 129mW

● ACTIVE FILTERS

● LOW DISABLED POWER: 3mW

● ARB WAVEFORM OUTPUT DRIVER

DESCRIPTION

temperature. System power may be further reduced

using the optional disable control pin. Leaving this pin

open, or holding it HIGH, gives normal operation. If

pulled LOW, the OPA685 supply current drops to less

than 320µA. This power-savings feature, along with

exceptional single +5V operation, and ultra-small

SOT23-6 packaging, make the OPA685 ideal for por-

table communications requirements.

The OPA685 is a very high bandwidth, current-feed-

back op amp that combines exceptional 4200V/µs slew

rate and low input voltage noise to deliver a precision

low cost, high dynamic range Intermediate Frequency

(IF) amplifier. Optimized for high gain operation, the

OPA685 is ideally suited to buffering Surface Acoustic

Wave (SAW) filters in an IF strip or delivering high

output power at low distortion for cable modem up-

stream line drivers. Even higher bandwidth at lower

gains gives a 900MHz video line driver for high

resolution workstation graphics.

OPA685 RELATED PRODUCTS

SINGLES

DUALS

The OPA685’s low 12.9mA supply current is pre-

cisely trimmed at +25°C. This trim, along with a low

temperature drift, guarantees low system power over-

OPA658

OPA681

OPA682

OPA2658

OPA2681

OPA2682

TWO-TONE, 3rd-ORDER

INTERMODULATION INTERCEPT

+5V

50Ω

Matching

Network

OPA685

50Ω

SAW

Filter

50Ω

Source

–5V

50Ω

400Ω

Low Distortion, 12dB Gain SAW Driver

100

150

200

250

Center Frequency (MHz)

International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • 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-1499A

Printed in U.S.A. April, 1999

12 3 4 5 6 7...28

中文翻译

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与OPA685N相关器件

型号	品牌	获取价格	描述	数据表
OPA685N/250	ETC	获取价格	Current-Feedback Operational Amplifier
OPA685N/3K	ETC	获取价格	Current-Feedback Operational Amplifier
OPA685U	BB	获取价格	Ultra-Wideband, Current-Feedback OPERATIONAL AMPLIFIER With Disable TM
OPA685U/2K5	ETC	获取价格	Current-Feedback Operational Amplifier
OPA686	BB	获取价格	Wideband, Low Noise, Voltage Feedback OPERATIONAL AMPLIFIER
OPA686N	BB	获取价格	Wideband, Low Noise, Voltage Feedback OPERATIONAL AMPLIFIER
OPA686N/250	ETC	获取价格	Voltage-Feedback Operational Amplifier
OPA686N/3K	ETC	获取价格	Voltage-Feedback Operational Amplifier
OPA686U	BB	获取价格	Wideband, Low Noise, Voltage Feedback OPERATIONAL AMPLIFIER
OPA686U/2K5	ETC	获取价格	Voltage-Feedback Operational Amplifier

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