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| 型号： | AD8012ARZ-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/17页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP CF DUAL LP 125MA 8SOIC |
| 标准包装： | 1,000 |
| 放大器类型： | 电流反馈 |
| 电路数： | 2 |
| 转换速率： | 2250 V/µs |
| -3db带宽： | 350MHz |
| 电流 - 输入偏压： | 3µA |
| 电压 - 输入偏移： | 1500µV |
| 电流 - 电源： | 1.7mA |
| 电流 - 输出 / 通道： | 125mA |
| 电压 - 电源，单路/双路(±)： | 3 V ~ 12 V，±1.5 V ~ 6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 带卷 (TR) |
REV. B
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 that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
2003 Analog Devices, Inc. All rights reserved.
AD8012*
Dual 350 MHz
Low Power Amplifier
*Protected under U.S. Patent Number 5,537,079.
FEATURES
Low Power
1.7 mA/Amplifier Supply Current
Fully Specified for
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/ s Slew Rate
20 ns Settling Time to 0.1%
Low Distortion
–72 dBc Worst Harmonic @ 500 kHz, RL = 100
–66 dBc Worst Harmonic @ 5 MHz, RL = 1 k
Good Video Specifications (RL = 1 k , G = +2)
0.02% Differential Gain Error
0.06 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 MSOP
APPLICATIONS
XDSL, HDSL Line Drivers
ADC Buffers
Professional Cameras
CCD Imaging Systems
Ultrasound Equipment
Digital Cameras
FUNCTIONAL BLOCK DIAGRAM
8
7
6
5
1
2
3
4
OUT1
–IN1
+IN1
+VS
OUT2
–IN2
+IN2
–VS
AD8012
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 and high
speed are essential and low power is critical.
With only 1.7 mA of supply current, the AD8012 also offers
exceptional ac specifications such as 20 ns settling time and
2,250 V/
s slew rate. The video specifications are 0.02% differ-
ential 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 MSOP
packages and operates over the industrial temperature range
–40
°C to +85°C.
RL –
–40
–90
10
1k
100
DISTORTION
–
dBc
–70
–80
–60
–50
G = +2
VOUT = 2V p-p
RF = 750
THIRD
SECOND
Figure 1. Distortion vs. Load Resistance, VS =
±5V,
Frequency = 500 kHz
AMP 1
VIN
VREF
R2
R1
RL = 100
OR
135
VOUT
Np:Ns
TRANSFORMER
LINE
POWER
IN dB
+VS
+
–
–VS
+
–
Figure 2. Differential Drive Circuit for XDSL Applications
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