Datasheet > OPA655

OPA655

更新时间： 2024-10-27 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
14页	224K
描述
Wideband, Unity Gain Stable, FET-Input OPERATIONAL AMPLIFIER

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OPA655 数据手册

OPA655

Wideband, Unity Gain Stable, FET-Input

OPERATIONAL AMPLIFIER

DESCRIPTION

FEATURES

The OPA655 combines a very wideband, unity gain

stable, voltage feedback op amp with a FET input

stage to offer an ultra high dynamic range amplifier

for ADC buffering and transimpedance applications.

Extremely low harmonic distortion along with excel-

lent pulse settling characteristics will support even the

most demanding ADC input buffer requirements.

● 400MHz UNITY GAIN BANDWIDTH

● LOW INPUT BIAS CURRENT: 5pA

● HIGH INPUT IMPEDANCE: 10¹²Ω || 1.0pF

● ULTRA-LOW dG/dP: 0.006%/0.009°

● LOW DISTORTION: 90dB SFDR at 5MHz

● FAST SETTLING: 17ns (0.01%)

The broad unity gain stable bandwidth and FET input

allows exceptional performance in high speed, low

noise integrators.

● HIGH OUTPUT CURRENT: 60mA

● FAST OVERDRIVE RECOVERY

The high input impedance and low bias current pro-

vided by the FET input is further supported by the

ultra-low 6nV/√Hz input voltage noise to achieve a

very low integrated noise in wideband photodiode

transimpedance applications.

APPLICATIONS

● WIDEBAND PHOTODIODE

AMPLIFIER

● PEAK DETECTOR

● CCD OUTPUT BUFFER

Broad transimpedance bandwidths are achievable given

the OPA655’s high 240MHz gain bandwidth product.

As shown below, a –3dB bandwidth of 1MHz is

provided even for a high 1MΩ transimpedance gain

from a 47pF source capacitance.

● ADC INPUT BUFFER

● HIGH SPEED INTEGRATOR

● TEST AND MEASUREMENT FRONT END

1pF

1MΩ TRANSIMPEDANCE BANDWIDTH

130

499kΩ

1MHz Bandwidth

120

110

100

V_O

OPA655

100Ω

(47pF)

10kHz

100kHz

Frequency

1MHz

5MHz

–V_b

Wideband Photodiode Transimpedance Amplifier

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-1271D

Printed in U.S.A. May, 1997

12 3 4 5 6 7...14

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