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AMSOP-77 Datasheet(PDF) 6 Page - Advanced Monolithic Systems

Part No. AMSOP-77
Description  ULTRA LOW OFFSET VOLTAGE OPERATIONAL AMPLIFIER
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Maker  ADMOS [Advanced Monolithic Systems]
Homepage  http://www.advanced-monolithic.com
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AMSOP-77 Datasheet(HTML) 6 Page - Advanced Monolithic Systems

   
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Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMSOP-77
TYPICAL APPLICATIONS (Continued)
Precision Current Sinks
Positive Current Sink
Positive current Source
These simple high current sinks require that the load float between the power
supply and the sink. In these circuits, OP-77’s high gain, high CMRR, and
low TCVOS assure high accuracy.
Precision Absolute Value Amplifier
The high gain and low TCVOS assure accurate operation with inputs from
microvolts to volts. In this circuit, this signal always appears as a common-mode
signal to the op amps. The OP-77E CMRR of 1
µV/V assures errors of less than
2ppm.
Low Noise Precision Reference
This circuit relies upon OP-77’s low TCVOS and noise combined with very high CMRR,
to provide precision buffering of the averaged REF-01 voltage outputs.
OP-77
+
-
R
L
200
IRF520
R1
1
V+
V
IN
I
O
R1
V
I
IN
O
=
0V
VIN
FULL SCALE OF 1V,
I
O = 1A/V
OP-77
+
-
R1
200
IRF520
R
L
V
IN
I
O
V-
R1
V
I
IN
O
=
0V
VIN
OP-77E
+
-
0.1
µF
-15V
+15V
R3
2k
4
6
7
2
3
0.1
µF
1k
OP-77E
+
-
0.1
µF
-15V
+15V
4
6
7
2
3
0.1
µF
1k
V
OUT
0< V
OUT<10V
C1
30pF
D1
1N4148
2N4393
D2
2
6
4
V
O
REF-01
2
6
4
V
O
REF-01
2
6
4
V
O
REF-01
100k
100k
100k
OP-77
+
-
V
OUT
0.1
µF
+15V
10
µF
+


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