參數(shù)資料
型號(hào)： AD8012ARM
廠商： ANALOG DEVICES INC
元件分類(lèi)： 音頻／視頻放大
英文描述： Dual 350 MHz Low Power Amplifier
中文描述： VIDEO AMPLIFIER, PDSO8
封裝： MICRO, SOIC-8
文件頁(yè)數(shù)： 1/15頁(yè)
文件大小： 414K
代理商： AD8012ARM
REV. A
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
AD8012
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 1999
Dual 350 MHz
Low Power Amplifier
FUNCTIONAL BLOCK DIAGRAM
8
7
6
5
1
2
3
4
OUT1
–IN1
+IN1
+V
S
OUT2
–IN2
+IN2
–V
S
AD8012
FEATURES
Low Power
1.7 mA/Amplifier Supply Current
Fully Specified for
6
5 V and +5 V Supplies
High Output Current, 125 mA
High Speed
350 MHz, –3 dB Bandwidth (G = +1)
150 MHz, –3 dB Bandwidth (G = +2)
2,250 V/
m
s Slew Rate
20 ns Settling Time to 0.1%
Low Distortion
–72 dBc Worst Harmonic @ 500 kHz, R
L
= 100
V
–66 dBc Worst Harmonic @ 5 MHz, R
L
= 1 k
V
Good Video Specifications (R
L
= 1 k
V
, G = +2)
0.02% Differential Gain Error
0.06
8
Differential Phase Error
Gain Flatness 0.1 dB to 40 MHz
60 ns Overdrive Recovery
Low Offset Voltage, 1.5 mV
Low Voltage Noise, 2.5 nV/
√
Hz
Available in 8-Lead SOIC and 8-Lead microSOIC
APPLICATIONS
XDSL, HDSL Line Driver
ADC Buffer
Professional Cameras
CCD Imaging System
Ultrasound Equipment
Digital Camera
PRODUCT DESCRIPTION
The AD8012 is a dual low power current feedback amplifier
capable of providing 350 MHz bandwidth while using only
1.7 mA per amplifier. It is intended for use in high frequency,
wide dynamic range systems where low distortion, high speed
are essential and low power is critical.
With only 1.7 mA of supply current, the AD8012 also offers
exceptional ac specs such as 20 ns settling time and 2,250 V/
μ
s
slew rate. The video specifications are 0.02% differential gain
and 0.06 degree differential phase, excellent for such a low power
amplifier. In addition, the AD8012 has a low offset of 1.5 mV.
The AD8012 is well suited for any application that requires high
performance with minimal power.
The product is available in standard 8-lead SOIC or micro-
SOIC packages and operates over the industrial temperature
range –40
°
C to +85
°
C.
R
L
–
V
–40
–9010
1k
100
D
–70
–80
–60
–50
G = +2
V
OUT
= 2V p-p
R
F
= 750
V
3rd
2nd
Figure 1. Distortion vs. Load Resistance, V
S
=
±
5 V,
Frequency = 500 kHz
AMP 1
V
IN
V
REF
R2
R1
R
L
= 100
V
OR
135
V
V
OUT
Np:Ns
TRANSFORMER
LINE
POWER
IN dB
+V
S
+
–
–V
S
+
–
Figure 2. Differential Drive Circuit for XDSL Applications
*
*
Protected under U.S. Patent Number 5,537,079.
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