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OPA655 PDF预览

OPA655

更新时间: 2024-10-27 22:50:51
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14页 224K
描述
Wideband, Unity Gain Stable, FET-Input OPERATIONAL AMPLIFIER

OPA655 数据手册

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OPA655  
®
OPA655  
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: 1012|| 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 1Mtransimpedance gain  
from a 47pF source capacitance.  
ADC INPUT BUFFER  
HIGH SPEED INTEGRATOR  
TEST AND MEASUREMENT FRONT END  
1pF  
1MTRANSIMPEDANCE BANDWIDTH  
130  
499kΩ  
499kΩ  
1MHz Bandwidth  
120  
110  
100  
90  
VO  
OPA655  
λ
100Ω  
(47pF)  
80  
10kHz  
100kHz  
Frequency  
1MHz  
5MHz  
–Vb  
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  
© 1994 Burr-Brown Corporation  
PDS-1271D  
Printed in U.S.A. May, 1997  

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