AD9622_15 Datasheet, PDF (1/6 Pages) Analog Devices – Wideband Voltage Feedback Amplifier

a
Wideband Voltage
Feedback Amplifier
AD9622*
FEATURES
CONNECTION DIAGRAM
220 MHz Small Signal Bandwidth
160 MHz Large Signal BW (4 V p-p)
High Slew Rate: 1500 V/␮s
NC # ¹
8 _{NC #}
Low Distortion: –66 dB @ 20 MHz
Fast Settling: 14 ns to 0.01%
3.5 nV/√Hz Spectral Noise Density
–INPUT 2
+INPUT 3
7 _+VS
6 OUTPUT
OBSOLETE ؎3 V Supply Operation
APPLICATIONS
ADC Input Signal Amplifier
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 AD9622 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
AD9622
5 NC
# OPTIONAL CAPACITOR CB CONNECTED HERE
DECREASES SETTLING TIME (SEE TEXT).
Other members of the AD962X amplifier family are the
AD9621 (G = +1), AD9623 (G = +4), and the AD9624
(G = +6). A separate data sheet is available from Analog De-
vices for each model. Each generic device has been designed for
a different minimum stable gain setting, allowing users flexibility
in optimizing system performance. Dynamic performance speci-
fications such as slew rate, settling time, and distortion vary
from model to model. The table below summarizes key perfor-
Proprietary design architectures have resulted in an amplifier
mance attributes for the AD962X family and can be used as a
family that combines the most attractive attributes of both cur-
selection guide.
rent feedback and voltage feedback amplifiers. The AD9622
exhibits extraordinarily accurate and fast pulse response charac- ^{The AD9622 is offered in industrial and military temperature}
teristics (8 ns settling to 0.1%) as well as extremely wide small
ranges. Industrial versions are available in plastic DIP, SOIC,
and large signal bandwidth previously found only in current
and cerdip; MIL versions are packaged in cerdips.
feedback amplifiers. When combined with balanced high
impedance inputs and low input noise current more common to
voltage feedback architectures, the AD9622 offers performance
not previously available in a monolithic operational amplifier.
PRODUCT HIGHLIGHTS
1. Wide Large Signal Bandwidth
2. High Slew Rate
3. Fast Settling
*Protected by U.S. Patent 5,150,074 and others pending.
4. Low Distortion
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
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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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