AD9624_15 Datasheet, PDF (1/6 Pages) Analog Devices – Wideband Voltage Feedback Amplifier

a
Wideband Voltage
Feedback Amplifier
AD9624*
FEATURES
CONNECTION DIAGRAM
300 MHz Small Signal Bandwidth
200 MHz Large Signal BW (4 V p-p)
High Slew Rate: 2200 V/␮s
Low Distortion: –60 dB @ 20 MHz
Fast Settling: 15 ns to 0.01%
NC # 1
–INPUT 2
8 NC #
7 +V_S
2.2 nV/√Hz Spectral Noise Density
+INPUT 3
6 OUTPUT
OBSOLETE ؎3 V Supply Operation
APPLICATIONS
ADC Input Driver
Differential Amplifiers
IF/RF Amplifiers
Pulse Amplifiers
Professional Video
DAC Current-to-Voltage
Baseband and Video Communications
Active Filters/lntegrators/Log Amps
GENERAL DESCRIPTION
The AD9624 is one of a family of very high speed and wide
bandwidth amplifiers utilizing a voltage feedback architecture.
These amplifiers define a new level of performance for voltage
feedback amplifiers, especially in the categories of large signal
bandwidth, slew rate, settling, low distortion, and low noise.
–V_S 4
AD9624
5 NC
# OPTIONALCAPACITOR CB CONNECTED HERE
DECREASES SETTLING TIME (SEE TEXT).
Other members of the AD962X amplifier family are the
AD9621 (G = +1), AD9622 (G = +2), and the AD9623
(G = +4). A separate data sheet is available from Analog
Devices for each model. Each generic device has been designed
for a different minimum stable gain setting, allowing users flex-
ibility in optimizing system performance. Dynamic performance
specifications such as slew rate, settling time, and distortion vary
from model to model. The table below summarizes key perfor-
mance attributes for the AD962X family and can be used as a
selection guide.
Proprietary design architectures have resulted in an amplifier
family that combines the most attractive attributes of both cur-
The AD9624 is offered in industrial and military temperature
rent feedback and voltage feedback amplifiers. The AD9624
ranges. Industrial versions are available in plastic DIP, SOIC,
exhibits extraordinarily accurate and fast pulse response charac- ^{and cerdip; MIL versions are packaged in cerdips.}
teristics (8 ns settling to 0.1%) as well as extremely wide small
and large signal bandwidth previously found only in current
feedback amplifiers. When combined with balanced high imped-
ance inputs and low input noise current more common to volt-
age feedback architectures, the AD9624 offers performance not
previously available in a monolithic operational amplifier.
PRODUCT HIGHLIGHTS
1. Wide Large Signal Bandwidth
2. High Slew Rate
3. Fast Settling
4. Low Distortion
*Protected by U.S. Patent 5,150,074 and others pending.
5. Output Short-Circuit Protected
6. Low Intermodulation Distortion of High Frequencies
Parameter
Minimum Stable Gain
Harmonic Distortion (20 MHz)
Large Signal Bandwidth (4 V p-p)
SSBW (0.5 V p-p)
Slew Rate
Rise/Fall Time (0.5 V Step)
Settling Time (to 0.1%/0.01%)
Input Noise (0.1 MHz – 200 MHz)
AD9621
+1
–52
130
350
1200
2.4
7/11
80
AD9622
+2
–66
160
220
1500
1.7
8/14
49
AD9623
+4
–64
190
270
2100
1.6
8/14
36
AD9624
+6
–66
200
300
2200
1.5
8/14
32
Units
V/V
dB
MHz
MHz
V/µs
ns
ns
µV rms
REV. 0
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.
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