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参数资料
| 型号： | AD8883B |
| 厂商： | Analog Devices, Inc. |
| 英文描述： | 60 MHz, 2000 V/us Monolithic Op Amp |
| 中文描述： | 60兆赫，2000年第V /我们单片运算放大器 |
| 文件页数： | 1/16页 |
| 文件大小： | 258K |
| 代理商： | AD8883B |
REV. D
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.
a
AD844
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
www.analog.com
Analog Devices, Inc., 2001
60 MHz, 2000 V/ s
Monolithic Op Amp
CONNECTION DIAGRAMS
PRODUCT DESCRIPTION
The AD844 is a high-speed monolithic operational amplifier
fabricated using Analog Devices’ junction isolated complemen-
tary bipolar (CB) process. It combines high bandwidth and very
fast large signal response with excellent dc performance. Although
optimized for use in current to voltage applications and as an
inverting mode amplifier, it is also suitable for use in many
noninverting applications.
The AD844 can be used in place of traditional op amps, but its
current feedback architecture results in much better ac perfor-
mance, high linearity and an exceptionally clean pulse response.
This type of op amp provides a closed-loop bandwidth which is
determined primarily by the feedback resistor and is almost inde-
pendent of the closed-loop gain. The AD844 is free from the slew
rate limitations inherent in traditional op amps and other
current-feedback op amps. Peak output rate of change can be over
2000 V/
μ
s for a full 20 V output step. Settling time is typically
100 ns to 0.1%, and essentially independent of gain. The AD844
can drive 50
loads to
±
2.5 V with low distortion and is short
circuit protected to 80 mA.
The AD844 is available in four performance grades and three
package options. In the 16-lead SOIC (R) package, the AD844J is
specified for the commercial temperature range of 0
°
C to 70
°
C.
The AD844A and AD844B are specified for the industrial tem-
perature range of –40
°
C to +85
°
C and are available in the cerdip (Q)
16-Lead SOIC
(R) Package
TOP VIEW
(Not to Scale)
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
NC = NO CONNECT
NC
OFFSETNULL
–IN
NC
+IN
NC
V–
NC
NC
OFFSETNULL
V+
NC
OUTPUT
TZ
NC
NC
AD844
8-Lead Plastic (N),
and Cerdip (Q) Packages
TOP VIEW
(Not to Scale)
8
7
6
5
1
2
3
4
NULL
–
IN
+IN
NULL
+V
S
OUTPUT
TZ
–
V
S
AD844
package. The AD844A is also available in an 8-lead plastic
mini-DIP (N). The AD844S is specified over the military tempera-
ture range of –55
°
C to +125
°
C. It is available in the 8-lead
cerdip (Q) package. “A” and “S” grade chips and devices processed
to MIL-STD-883B, REV. C are also available.
PRODUCT HIGHLIGHTS
1. The AD844 is a versatile, low cost component providing an
excellent combination of ac and dc performance.
2. It is essentially free from slew rate limitations. Rise and fall
times are essentially independent of output level.
3. The AD844 can be operated from
±
4.5 V to
±
18 V power
supplies and is capable of driving loads down to 50
, as well
as driving very large capacitive loads using an external network.
4. The offset voltage and input bias currents of the AD844 are
laser trimmed to minimize dc errors; V
OS
drift is typically
1
μ
V/
°
C and bias current drift is typically 9 nA/
°
C.
5. The AD844 exhibits excellent differential gain and differen-
tial phase characteristics, making it suitable for a variety of
video applications with bandwidths up to 60 MHz.
6. The AD844 combines low distortion, low noise and low drift
with wide bandwidth, making it outstanding as an input
amplifier for flash A/D converters.
FEATURES
Wide Bandwidth: 60 MHz at Gain of –1
Wide Bandwidth: 33 MHz at Gain of –10
Very High Output Slew Rate: Up to 2000 V/ s
20 MHz Full Power Bandwidth, 20 V p-p, R
L
= 500
Fast Settling: 100 ns to 0.1% (10 V Step)
Differential Gain Error: 0.03% at 4.4 MHz
Differential Phase Error: 0.158 at 4.4 MHz
High Output Drive: 650 mA into 50
Low Offset Voltage: 150 mV Max (B Grade)
Low Quiescent Current: 6.5 mA
Available in Tape and Reel in Accordance with
EIA-481A Standard
Load
APPLICATIONS
Flash ADC Input Amplifiers
High-Speed Current DAC Interfaces
Video Buffers and Cable Drivers
Pulse Amplifiers
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