OPA686 Burr-Brown, OPA686 Datasheet

OPA686

Manufacturer Part Number

OPA686

Description

Wideband / Low Noise / Voltage Feedback OPERATIONAL AMPLIFIER

Manufacturer

Burr-Brown

Datasheet

1.OPA686.pdf (15 pages)

Available stocks

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Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

OPA686N/250

Manufacturer:

TI/德州仪器

Quantity:

20 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

OPA686U

Manufacturer:

Quantity:

20 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

OPA686U/2K5

Manufacturer:

TI/德州仪器

Quantity:

20 000

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FEATURES

DESCRIPTION

The OPA686 combines very high gain bandwidth and large

signal performance with very low input voltage noise while

dissipating a low 12mA supply current. The classical differen-

tial input stage, along with two stages of forward gain and a

high power output stage, combine to make the OPA686 an

exceptionally low distortion amplifier with excellent DC accu-

racy and output drive. The voltage feedback architecture allows

all standard op amp applications to be implemented with very

high performance.

The combination of low input voltage and current noise, along

with a 1.6GHz gain bandwidth product, make the OPA686 an

ideal amplifier for wideband transimpedance stages. As a volt-

age gain stage, the OPA686 is optimized for a flat response at a

gain of +10 and is guaranteed stable down to a noise gain of +7.

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

information, visit www.burr-brown.com

HIGH BANDWIDTH: 250MHz (G = +10)

LOW INPUT VOLTAGE NOISE: 1.3nV/ Hz

VERY LOW DISTORTION: –90dBc (5MHz)

HIGH SLEW RATE: 600V/ s

HIGH DC ACCURACY

LOW SUPPLY CURRENT: 12mA

HIGH GAIN BANDWIDTH PRODUCT:

1600MHz

STABLE FOR GAINS

High Gain, 20MHz Transimpedance Amplifier

Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132

1997 Burr-Brown Corporation

Voltage Feedback OPERATIONAL AMPLIFIER

100pF

0.1 F

–V

Photodiode

50k

10pF

+5V

–5V

OPA686

Supply decoupling

0.2pF

50k

not shown.

Wideband, Low Noise,

PDS-1370D

A new external compensation technique can be used to give a

very flat frequency response below the minimum stable gain

for the OPA686, further improving its already exceptional

distortion performance. Using this compensation makes the

OPA686 one of the premier 12- to 14-bit analog-to-digital

converter input drivers. The supply current for the OPA686 is

precisely trimmed to 12.4mA at +25 C. This, along with

carefully defined supply current tempcos in the input and

output stages, combine to provide exceptional performance

over the full specified temperature range.

OPA686 RELATED PRODUCTS

APPLICATIONS

SINGLES

OPA643

OPA687

HIGH DYNAMIC RANGE ADC PREAMP

LOW NOISE, WIDEBAND,

TRANSIMPEDANCE AMPLIFIER

WIDEBAND, HIGH GAIN AMPLIFIER

LOW NOISE DIFFERENTIAL RECEIVER

VDSL LINE RECEIVER

ULTRASOUND CHANNEL AMPLIFIER

IMPROVED REPLACEMENT FOR THE

CLC425

100

0.1

OPA2686

DUALS

VOLTAGE (nV/ Hz)

20log (50k ) = 94dB

INPUT NOISE

Frequency (MHz)

0.95

2.3

1.3

OPA686

Printed in U.S.A. May, 2000

OPA686

GAIN BANDWIDTH

PRODUCT (MHz)

1600

3600

800

100

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