AMP01
R
S
+15V
10k⍀
0.047F
*MATCHED TO 0.1%
0V
14
*5k⍀
R
S
18
1
15
+IN
R
S
12
V+
1.5k⍀
13
10
SENSE
R
R
G
7
7
*5k⍀
2
3
9
AMP01
R
G
6
470pF
OP37
4
8
2
3
REFERENCE
G
V–
11
–IN
0.047F
0V
–15V
S
VOLTAGE GAIN, G =
(
)
R
G
R
L
MAXIMUM OUTPUT, 20V p-p INTO 600⍀
T.H.D. 0.01% @ 1kHz, 20V p-p INTO 600⍀, G = 10
+
OUTPUT
DIFFERENTIAL COMMON-MODE
OUTPUT
REFERENCE
(؎5V MAX)
Figure 40. A Differential Input Instrumentation Amplifier with Differential Output Replaces a Transformer in Many
Applications. The Output will Drive a 600 Ω Load at Low Distortion, (0.01%).
+15V
POWER BANDWIDTH (–3dB)~150kHz
TOTAL HARMONIC DISTORTION~0.006%
@1kHz, 20V p-p INTO 500⍀ // 1000pF
+
8
REF
0.047F
10F
7
18
1
SENSE
V
IN
12
V+
13
10
R
R
G
9
R1
390⍀
V
OUT
AMP01
2
3
G
V–
11
R2
4.95k⍀
R
S
C
R
L
L
15
R
S
14
0.047F
10F
+
NC
NC
–15V
R3
50⍀
CLOSED-LOOP VOLTAGE GAIN MUST BE
GREATER THAN 50 FOR STABLE OPERATION
R2
R3
VOLTAGE GAIN, G =
1 +
(
)
NC = NO CONNECT
Figure 41. Configuring the AMP01 as a Noninverting Operational Amplifier Provides Exceptional Performance. The
Output Handles Low Load Impedances at Very Low Distortion, 0.006%.
REV. D
–18–
ADI [ ADI ]
