MIC863_11 Datasheet, PDF (7/16 Pages) Micrel Semiconductor – Dual Ultra Low Power Op Amp in SOT23-8

MIC863
AC Perfomance Characteristics
Gain Bandwidth
and Phase Margin
50
225
40
180
30
135
20
90
10
45
0
0
-10
-45
-20 _{Av = 11}
-30
-40
-50
V+ = +1.5V
V– = –0.5V
C_L = 2.0pF
R_F = 200kΩ
R_L = 1MΩ
1k
10k
100k
FREQUENCY
-90
-135
-180
-225
1M
Gain Bandwidth
and Phase Margin
50
225
40
180
30
135
20
90
10
45
0
0
-10 Av = 11
-20
-30
-40
-50
V±
C_L
R_F
R_L
=
=
=
=
±1.35V
2pF
200kΩ
1MΩ
1k
10k
100k
FREQUENCY (Hz)
-45
-90
-135
-180
-225
1M
Micrel
Gain Bandwidth
and Phase Margin
50
225
40
180
30
135
20
90
10
45
0
0
-10 ^{Av = 11}
-20
-30
-40
V±
C_L
R_F
R_L
=
=
=
=
±2.5V
2pF
200kΩ
1MΩ
-50
1k
10k
100k
FREQUENCY (Hz)
-45
-90
-135
-180
-225
1M
Gain Bandwidth
Frequency Response
25
225
20
180
15
135
10
90
5
45
0
0
-5 ^{Av = 2}
-10
-15
-20
V±
C_L
R_F
R_L
=
=
=
=
±1.35V
2pF
20kΩ
1MΩ
-25
1k
10k
100k
FREQUENCY (Hz)
-45
-90
-135
-180
-225
1M
Unity Gain
Frequency Response
20
225
15
180
10
135
5
90
0
45
-5
0
-10
-15 ^{Av = 1}
V± = ±1.35V
-20 _{CL = 2pF}
-25 _{RL = 1MΩ}
-30
1k
10k
100k
FREQUENCY (Hz)
-45
-90
-135
-180
-225
1M
Close Loop Unity Gain
Frequency Response
18
15
0.01µF
12
0.1µF
1000pF
1µF
9
100pF
6
3
2pF
0
-3
-6
-9
Av = 1
V± = ±1.35V
-12
100 1k 10k
100k 1M
FREQUENCY (Hz)
Gain Bandwidth
Frequency Response
25
225
20
180
15
135
10
90
5
45
0
0
-5 Av = 2
-10
-15
-20
-25
V±
C_L
R_F
R_L
=
=
=
=
±2.5V
2pF
20kΩ
1MΩ
1k
10k
100k
FREQUENCY (Hz)
-45
-90
-135
-180
-225
1M
Unity Gain
Frequency Response
20
225
15
180
10
135
5
90
0
45
-5
0
-10
-15 ^{Av = 1}
V± = ±2.5V
-20 _{CL = 2pF}
-25 _{RL = 1MΩ}
-30
1k
10k
100k
FREQUENCY (Hz)
-45
-90
-135
-180
-225
1M
Close Loop Unity Gain
Frequency Response
18
15
0.01µF
12
0.1µF
1000pF
1µF
9
100pF
6
3
2pF
0
-3
-6
-9 ^{Av = 1}
V± = ±2.5V
-12
100 1k 10k 100k 1M
FREQUENCY (Hz)
Unity Bandwidth
Frequency Response
20
180
15
135
10
90
5
45
0
0
-5
-45
-10 _{Av = 1}
-15 ^{V+ = +1.5V}
-20
-25
V– = –0.5V
C_L = 1.7pF
R_L = 1MΩ
-30
1k
10k
100k
FREQUENCY
-90
-135
-180
-225
-270
1M
V+
RF
V—
FET Probe
C_L
Gain Bandwidth and Phase
Margin vs. Capacitive Load
500
80
450
V± = ±2.5V
70
400
Gain Bandwidth
60
350
300
50
250
40
200 ^{Phase Margin}
30
150
20
100
50
10
01
10
100
10000
CAPACITIVE LOAD (pF)
January 2005
7
MIC863