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AM-1435 Datasheet(PDF) 3 Page - DATEL, Inc.

No. de Pieza. AM-1435
Descripción  Ultra-Fast, Wideband Operational Amplifi ers
Descarga  4 Pages
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Fabricante  DATEL [DATEL, Inc.]
Página de inicio  http://www.datel.com/
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AM-1435 Datasheet(HTML) 3 Page - DATEL, Inc.

   
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(R1) x (R4)
R1 + R4
R2 =
TYPICAL CONNECTION AND COMPENSATION
The typical connection diagram (above) shows the AM-1435 in a unity-
gain inverting configuration. When used in any conventional operational-
amplifier configuration, the AM-1435 (as a non-inverting amplifier) requires
a noise gain of at least two (noise gain = 1 + R4/R1).
The 2pF compensation capacitor, C1, at pin 3 is required for stable
operation when the noise gain is less than 10. Compensation for bias
current is provided by R2 and its value is determined by the formula:
The offset adjust potentiometer R3 and the compensation capacitor C4
are optional. Note, however, that C4 should be implemented when driving
capacitive loads to prevent oscillation of the output stage.
Operation of the AM-1435 at low impedances requires careful attention to
include the feedback resistor as a part of the total output load.
Figure 2. Typical Connection Diagram
OFFSET
ADJUST
(OPT.)
+15V
–15V
+
1
2
13
14
12
7
3
8
500
W
1k
W
+
+
+
1µF
R1
C1
C2
1µF
C3
1µF
C4 (OPT.)
INPUT
R2
2pF
R3
R4
OUTPUT
AM-1435
6
5
4
1k
W
1k
W
Figure 3. Gain and Phase vs. Frequency
(Uncompensated)
-20
0
20
40
60
80
100
120
100 200 500 1k
10k
100k
1M
10M
100M
180°
140°
100°
60°
40°
FREQUENCY (Hz)
PHASE ANGLE
GAIN
Figure 4. Gain and Phase vs. Frequency
(Compensated 2pF)
-20
0
20
40
60
80
100
120
100 200 500 1k
10k
100k
1M
10M
100M
20°
60°
100°
140°
180°
FREQUENCY (Hz)
PHASE ANGLE
GAIN
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: help@datel.com
AM-1435
Ultra-Fast, Wideband Operational Amplifiers
MDA_AM-1435.C02 Page 3 of 4


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