Datasheet > OPA688U

OPA688U

更新时间： 2024-09-16 22:38:55

品牌	Logo	应用领域
BB		放大器
页数	文件大小	规格书
16页	187K
描述
Unity Gain Stable, Wideband VOLTAGE LIMITING AMPLIFIER

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OPA688U 数据手册

OPA688

For most current data sheet and other product

information, visit www.burr-brown.com

Unity Gain Stable, Wideband

VOLTAGE LIMITING AMPLIFIER

FEATURES

APPLICATIONS

● HIGH LINEARITY NEAR LIMITING

● FAST RECOVERY FROM OVERDRIVE: 2.4ns

● LIMITING VOLTAGE ACCURACY: ±15mV

● –3dB BANDWIDTH (G = +1): 530MHz

● SLEW RATE: 1000V/µs

● FAST LIMITING ADC INPUT BUFFER

● CCD PIXEL CLOCK STRIPPING

● VIDEO SYNC STRIPPING

● HF MIXER

● IF LIMITING AMPLIFIER

● AM SIGNAL GENERATION

● NON-LINEAR ANALOG SIGNAL PROCESSING

● COMPARATOR

● ±5V AND 5V SUPPLY OPERATION

● HIGH GAIN VERSION: OPA689

DESCRIPTION

The OPA688 is a wideband, unity gain stable voltage

feedback op amp that offers bipolar output voltage lim-

iting. Two buffered limiting voltages take control of the

output when it attempts to drive beyond these limits.

This new output limiting architecture holds the limiter

offset error to ±15mV. The op amp operates linearly to

within 30mV of the output limit voltages.

the input, gives the specified limiting accuracy for any

gain, and allows the OPA688 to be used in all standard

op amp applications.

Non-linear analog signal processing will benefit from

the OPA688’s sharp transition from linear operation to

output limiting. The quick recovery time supports high

speed applications.

The combination of narrow nonlinear range and low

limiting offset allows the limiting voltages to be set

within 100mV of the desired linear output range. A fast

2.4ns recovery from limiting ensures that overdrive sig-

nals will be transparent to the signal channel. Imple-

menting the limiting function at the output, as opposed to

The OPA688 is available in an industry standard pinout

in PDIP-8 and SO-8 packages. For higher gain, or

transimpedance applications requiring output limiting

with fast recovery, consider the OPA689.

DETAIL OF LIMITED OUTPUT VOLTAGE

2.10

LIMITED OUTPUT RESPONSE

2.5

V_H= –V_L= 2.0V

2.05

2.00

2.0

G = +2

1.5

V_INV_O

1.95

1.0

V_O

1.90

0.5

1.85

1.80

1.75

1.70

1.65

–0.5

–1.0

–1.5

–2.0

1.60

–2.5

Time (50ns/div)

Time (200ns/div)

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-1424D

Printed in U.S.A. January, 2000

OPA688

12 3 4 5 6 7...16

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与OPA688U相关器件

型号	品牌	获取价格	描述	数据表
OPA688U/2K5	ETC	获取价格	Voltage-Feedback Operational Amplifier
OPA689	BB	获取价格	Wideband, High Gain VOLTAGE LIMITING AMPLIFIER
OPA689M	TI	获取价格	GAIN 4 STABLE WIDEBAND VOLTAGE-LIMITING AMPLIFIER
OPA689MJD	TI	获取价格	GAIN 4 STABLE WIDEBAND VOLTAGE-LIMITING AMPLIFIER
OPA689P	BB	获取价格	Wideband, High Gain VOLTAGE LIMITING AMPLIFIER
OPA689U	BB	获取价格	Wideband, High Gain VOLTAGE LIMITING AMPLIFIER
OPA689U/2K5	ETC	获取价格	Voltage-Feedback Operational Amplifier
OPA690	BB	获取价格	Low-Power, Single-Supply, Wideband Operational Amplifier
OPA690	TI	获取价格	Wideband, Voltage Feedback OPERATIONAL AMPLIFIER With Disable
OPA690ID	TI	获取价格	Wideband, Voltage Feedback OPERATIONAL AMPLIFIER With Disable

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