OPA698M Datasheet, PDF (6/32 Pages) Texas Instruments – UNITY-GAIN STABLE WIDEBAND VOLTAGE LIMITING AMPLIFIER

OPA698M
SGLS287A – MAY 2005 – REVISED MARCH 2006
TYPICAL CHARACTERISTICS — V_S = ±5 V
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NONINVERTING SMALL-SIGNAL
FREQUENCY RESPONSE
6
V_O = 0.2V_PP
G = +1, R_F = 25Ω, R_C = ∞
3
G = +1, R_F = 25Ω, R_C = 175Ω
0
-3 ^VIN
-6
-9
-12
1
OPA698
RC
RF
RG
VO
G = +2, R_C = ∞
G = +5, R_C = ∞
10
100
Frequency (MHz)
Figure 1.
800
G001
INVERTING SMALL-SIGNAL
FREQUENCY RESPONSE
3
V_O = 0.2V_PP
R_F = 402Ω, R_G Adjusted
0
G = -1
G = -2
-3
G = -5
-6
-9
See Figure 49
-12
1
10
100
Frequency (MHz)
Figure 2.
500
G002
NONINVERTING LARGE-SIGNAL
FREQUENCY RESPONSE
9
V_O = 1V_PP
V_O =
6
2V_PP
V_O = 4V_PP
3
V_O = 7V_PP
0
-3
See Figure 47
-6
1
10
100
Frequency (MHz)
Figure 3.
400
G003
INVERTING SMALL-SIGNAL
FREQUENCY RESPONSE
9
G = -2V/V, R_F = 402Ω
6
3
0
-3
See Figure 49
-6
1
V_O = 4V_PP
V_O = 7V_PP
V_O = 1V_PP
V_O = 2V_PP
10
100
Frequency (MHz)
Figure 4.
400
G004
V_H–LIMITER SMALL-SIGNAL
FREQUENCY RESPONSE
3
G = +2
V_O = 0.02V_PP
0
0.02VPP + 2VDC
-3 2V_DC
VH
VO
OPA698
-6
402Ω
402Ω V_L Open
-9
1M
10M
100M
Frequency (Hz)
Figure 5.
1G
G005
V_l–LIMITER SMALL-SIGNAL
FREQUENCY RESPONSE
3
G = +2
V_O = 0.02V_PP
0
-2VDC
-3
VH Open
VO
OPA698
VL
0.02VPP - 2VDC
-6
402Ω
402Ω
-9
1M
10M
100M
Frequency (Hz)
Figure 6.
1G
G006
6
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