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參數(shù)資料
| 型號(hào)： | VCA610UA |
| 英文描述： | WIDEBAND VOLTAGE CONTROLLED AMPLIFIER |
| 中文描述： | 寬帶電壓控制放大器 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 212K |
| 代理商： | VCA610UA |
1992 Burr-Brown Corporation
PDS-1140D
Printed in U.S.A. January, 1995
DESCRIPTION
The VCA610 is a wideband, continuously variable,
voltage controlled gain amplifier. It provides linear-
dB gain control with high impedance inputs. It is
designed to be used as a flexible gain control element
in a variety of electronic systems.
The VCA610 has a gain control range of 80dB (–40dB
to +40dB) providing both gain and attenuation for
maximum flexibility in a small 8-lead SO-8 or plastic
dual-in-line package. The broad attenuation range can
be used for gradual or controlled channel turn-on and
turn-off for applications in which abrupt gain changes
can create artifacts or other errors. In addition, the
output can be disabled to provide –80dB of attenua-
tion. Group delay variation with gain is typically less
than
±
2ns across a bandwidth of 1 to 15MHz.
The VCA610 has a noise figure of 3.5dB (with an R
S
of 200
) including the effects of both current and
voltage noise. Instantaneous output dynamic range is
70dB for gains of 0dB to +40dB with 1MHz noise
bandwidth. The output is capable of driving 100
.
The high speed, 300dB/
μ
s, gain control signal is a
unipolar (0 to –2V) voltage that varies the gain lin-
early in dB/V.
VCA610
FEATURES
G
WIDE GAIN CONTROL RANGE: 80dB
G
SMALL PACKAGE: 8-pin SOIC or DIP
G
WIDE BANDWIDTH: 30MHz
G
LOW VOLTAGE NOISE: 2.2nV/
√
Hz
G
FAST GAIN SLEW RATE: 300dB/
μ
s
G
EASY TO USE
WIDEBAND
VOLTAGE CONTROLLED AMPLIFIER
APPLICATIONS
G
OPTICAL DISTANCE MEASUREMENT
G
AGC AMPLIFIER
G
ULTRASOUND
G
SONAR
G
ACTIVE FILTERS
G
LOG AMPLIFIER
G
IF CIRCUITS
G
CCD CAMERAS
The VCA610 is designed with a very fast overload
recovery time of only 200ns. This allows a large
signal transient to overload the output at high gain,
without obscuring low-level signals following closely
behind. The excellent overload recovery time and
distortion specifications optimize this device for low-
level doppler measurements.
+5V –5V
V
OUT
–In
+In
V
C
Gain
Control
VCA610
6
8
5
1
3
7
2
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/ FAXLine: (800) 548-6133 (US/Canada Only) Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132
VCA610
VCA610
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