AMP01
+15V
+
10F
0.047F
10k⍀
14
R
S
2N4921
18
1
15
+IN
R
S
12
V+
0.047F
100⍀
13
SENSE
7
R
R
G
9
V
R
OUT
AMP01
G
(؎10V INTO 10⍀)
8
2
3
REFERENCE
G
10
V–
11
–IN
2N4918
GND
–15V
0.047F
VOLTAGE GAIN, G = 100
POWER BANDWIDTH (–3dB), 60kHz
QUIESCENT CURRENT, 4mA
+
LINEARITY~0.01% @ FULL OUTPUT INTO 10⍀
Figure 38. Adding Two Transistors Increases Output Current to ±1 A Without Affecting the Quiescent Current of 4 mA.
Power Bandwidth is 60 kHz.
Q1, Q2...........J110
Q3, Q4, Q5....J107
IC1 ...............CMP-04
IC2 ...............OP15GZ
+15V
R
10k⍀
S
0.047F
18
1
+IN
–IN
14
R
S
15
S
R
G
12
V+
R
200k⍀ 20k⍀
2k⍀
196⍀
47k⍀
47k⍀
47k⍀
47k⍀
SENSE
13
Q4
7
9
Q5
Q3
AMP01
OUT
GND
V–
Q2
8
10
Q1
V
REFERENCE
OOS
NULL
+15V
11
2
3
5
3
2
V
IOS
R
7
G
4
NULL
6
IC2
4
17
16
2
1
14
+
13
+
0.047F
–15V
100k⍀
100k⍀
+
+
3
4
IC1
6
LINEARITY~0.005%, G = 10 AND 100
~0.02%, G = 1 AND 1000
8
12
27k⍀
10
GAIN ACCURACY, UNTRIMMED~0.5%
+15V
SETTLING TIME TO 0.01%, ALL GAINS,
LESS THAN 75s
5
7
9
11
G1000
TTL COMPATIBLE INPUTS
2.7k⍀
–15V
G1
G10
G100
GAIN SWITCHING TIME, LESS THAN 100s
Figure 39. The AMP01 Makes an Excellent Programmable-Gain Instrumentation Amplifier. Combined Gain-Switching
and Settling Time to 13 Bits Falls Below 100 µs. Linearity Is Better than 12 Bits over a Gain Range 1 to 1000.
REV. D
–17–
ADI [ ADI ]
