参数资料
型号: AD8047ARZ-REEL7
厂商: Analog Devices Inc
文件页数: 1/17页
文件大小: 0K
描述: IC OPAMP VF GP LDIST 50MA 8SOIC
标准包装: 1,000
放大器类型: 电压反馈
电路数: 1
转换速率: 750 V/µs
-3db带宽: 250MHz
电流 - 输入偏压: 1µA
电压 - 输入偏移: 1000µV
电流 - 电源: 5.8mA
电流 - 输出 / 通道: 50mA
电压 - 电源,单路/双路(±): 6 V ~ 12 V,±3 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. 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 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 companies.
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.
AD8047/AD8048
250 MHz, General Purpose
Voltage Feedback Op Amps
The AD8047 and AD8048’s low distortion and cap load drive
make the AD8047/AD8048 ideal for buffering high speed ADCs.
They are suitable for 12-bit/10 MSPS or 8-bit/60 MSPS ADCs.
Additionally, the balanced high impedance inputs of the voltage
feedback architecture allow maximum flexibility when designing
active filters.
The AD8047 and AD8048 are offered in industrial (–40
°C to
+85
°C) temperature ranges and are available in 8-lead PDIP
and SOIC packages.
5ns
1V
Figure 1. AD8047 Large Signal Transient Response,
VO = 4 V p-p, G = +1
FEATURES
Wide Bandwidth
AD8047, G = +1
AD8048, G = +2
Small Signal
250 MHz
260 MHz
Large Signal (2 V p-p) 130 MHz
160 MHz
5.8 mA Typical Supply Current
Low Distortion, (SFDR) Low Noise
–66 dBc Typ @ 5 MHz
–54 dBc Typ @ 20 MHz
5.2 nV/
√Hz (AD8047), 3.8 nV/√Hz (AD8048) Noise
Drives 50 pF Capacitive Load
High Speed
Slew Rate 750 V/ s (AD8047), 1000 V/ s (AD8048)
Settling 30 ns to 0.01%, 2 V Step
3 V to
6 V Supply Operation
APPLICATIONS
Low Power ADC Input Driver
Differential Amplifiers
IF/RF Amplifiers
Pulse Amplifiers
Professional Video
DAC Current to Voltage Conversion
Baseband and Video Communications
Pin Diode Receivers
Active Filters/Integrators
PRODUCT DESCRIPTION
The AD8047 and AD8048 are very high speed and wide band-
width amplifiers. The AD8047 is unity gain stable. The AD8048 is
stable at gains of two or greater. The AD8047 and AD8048,
which utilize a voltage feedback architecture, meet the require-
ments of many applications that previously depended on current
feedback amplifiers.
A proprietary circuit has produced an amplifier that combines
many of the best characteristics of both current feedback and
voltage feedback amplifiers. For the power (6.6 mA max), the
AD8047 and AD8048 exhibit fast and accurate pulse response
(30 ns to 0.01%) as well as extremely wide small signal and large
signal bandwidth and low distortion. The AD8047 achieves
–54 dBc distortion at 20 MHz, 250 MHz small signal, and
130 MHz large signal bandwidths.
FUNCTIONAL BLOCK DIAGRAM
8-Pin Plastic PDIP (N)
and SOIC (R) Packages
1
2
3
4
8
7
6
5
NC
–INPUT
+INPUT
–V
S
NC
+V
S
OUTPUT
NC
(TOP VIEW)
NC = NO CONNECT
AD8047/
AD8048
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