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PDF AD9622 Data sheet ( Hoja de datos )
| Número de pieza | AD9622 | |
| Descripción | Wideband Voltage Feedback Amplifier | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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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
؎3 V Supply Operation
APPLICATIONS
ADC Input Signal Amplifier
Differential Amplifiers
IF/RF Amplifiers
Pulse Amplifiers
OProfessional Video
DAC Current-to-Voltage
BBaseband and Video Communications
SActive Filters/lntegrators/Log Amps
OGENERAL DESCRIPTION
The AD9622 is one of a family of very high speed and wide
Lbandwidth amplifiers utilizing a voltage feedback architecture.
EThese amplifiers define a new level of performance for voltage
feedback amplifiers, especially in the categories of large signal
TEbandwidth, slew rate, settling, low distortion, and low noise.
–VS 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
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
1 page  
–Typical Performance (RL = 100 Ω; AV = +2, unless otherwise noted) AD9622
80
+90 +2
+180
+2
+180
GAIN
60
+75
+60 0
+135
+90
0
+135
+90
PHASE
40
+45
+30 –2
+15
AV = –1
+45
0 –2
–45
AV = 2,4,8
AV = 2
+45
0
–45
20
0
–20
10k
100k 1M 10M 100M
FREQUENCY – Hz
0
–15
–30
–45
–60
600M
–4
AV = –2
–6
–90
–135
–180
–8
50 100 150 200 250 300 350 400 450 500
FREQUENCY – MHz
–4
–6 AV = 4
–90
–135
–180
AV = 8
–8
50 100 150 200 250 300 350 400 450 500
FREQUENCY – MHz
Figure 3. Open-Loop Gain and Phase
–50
VOUT = 2Vp-p
–60
2nd HARMONIC
–70 RL = 100Ω
O–80 2nd HARMONIC
BRLL ==550000ΩΩ
–90
S–100
3rd HARMONIC
RL = 100 Ω
O–110
L–120
E1
2
3rd HARMONIC
RL = 500Ω
4 6 10
20
FREQUENCY – MHz
40 60
Figure 6. Harmonic Distortion
TEvs. Frequency
Figure 4. Inverting Frequency
Response
50
50
OUT
50
40
30
20
10
1 10 100
FREQUENCY – MHz
Figure 7. Third Order Intercept
Figure 5. Noninverting Frequency
Response
+20
+25
+30
+35
+40
+45
+50
CMRR
+55
+60 PSRR
+65
+70
1 10 100 1k 10k 100k 1M 10M 100M 1G
FREQUENCY – Hz
Figure 8. CMRR and PSRR vs.
Frequency
+2 +180
AV = 2
+135
RFB = 270Ω
0
RFF = 270 Ω
+90
+45
–2 0
RLOAD = 500 Ω
–45
–4 –90
–135
–6 –180
RLOAD = 50Ω
–8
50 100 150 200 250 300 350 400 450 500
FREQUENCY – MHz
Figure 9. Frequency Response vs.
RLOAD
10 10
88
66
44
VOLTAGE
CURRENT
22
+0.1
+0.08
+0.06
+0.04
+0.02
TEST CIRCUIT
100 Ω
6pF
0
–0.02
–0.04
–0.06
VOUT = 2V STEP
–0.08
–0.1
0 10 20 30 40 50
TIME – ns
Figure 10. Short-Term Settling Time
27 4
VOLTAGE
23 3
CURRENT
19 2
+0.1
+0.08
+0.06
VOUT = 2V STEP
+0.04
+0.02
0
–0.02
–0.04
–0.06
TEST CIRCUIT
100Ω
6pF
–0.08
–0.1
1 10 100 1K 10K 100K
TIME – ns
Figure 11. Long-Term Settling Time
30
26
RS
22 1k CL
270
270
RS
18
tSETTLING
14
30
26
22
18
14
1102
103 104 105
FREQUENCY – Hz
106 1
Figure 12. Input Spectral Noise
Density
3.5 4.0 4.5 5.0
SUPPLY VOLTAGE – ±Volts
5.5
Figure 13. Output Level and Supply
Current vs. Supply Voltage
10 10
1 10 100
CLOAD – pF
Figure 14. Settling Time vs.
Capacitive Load
REV. 0
–5–
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet AD9622.PDF ] | |
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