OPA698IDG4 Datasheet, PDF (13/32 Pages) Texas Instruments – Unity-Gain Stable, Wideband Voltage Limiting Amplifier

TYPICAL CHARACTERISTICS: V_S = +5V
T_A = +25°C, G = +2, R_F = 402Ω, and R_L = 500Ω to V_CM = +2.5V, V_L = V_CM – 1.2V, V_H = V_CM + 1.2V, unless otherwise noted.
NONINVERTING SMALL-SIGNAL
FREQUENCY RESPONSE
9
V_O = 0.2V_PP
6
3
G = +1, R_F = 25Ω, R_C = ∞
G = ±1, R_F = 25Ω,
R_C = 175Ω
0
–3
G = +2, R_C = ∞
–6
G = +5, R_C = ∞
–9
–12
See Figure 2
–15
1
10
100
500
Frequency (MHz)
INVERTING SMALL-SIGNAL
FREQUENCY RESPONSE
3
V_O = 0.2V_PP
0
R_F = 402Ω, R_G Adjusted
–3
G = –5
–6
G = –1
G = –2
–9
–12
–15
1
10
100
400
Frequency (MHz)
LARGE-SIGNAL FREQUENCY RESPONSE
9
V_O = 1V_PP, V_H = V_CM + 1.2V,
V_L = V_CM – 1.2V
6
V_O = 2V_PP, V_H = V_CM + 1.5V,
V_L = V_CM – 1.5V
3
0
–3
See Figure 2
–6
V_O = 3V_PP
V_H = V_CM + 2V
V_L = V_CM – 2V
1
10
100
400
Frequency (MHz)
SMALL-SIGNAL PULSE RESPONSE
2.70
G = +2
2.65
2.60
2.55
2.50
2.45
2.40
2.35
2.30
Time (5ns/div)
LARGE-SIGNAL PULSE RESPONSE
4.0
V_O = 2V_PP
3.5
V_H = V_CM + 1.2V
V_L = V_CM – 1.2V
3.0
2.5
2.0
1.5
1.0
Time (5ns/div)
V_H and V_L—LIMITED PULSE RESPONSE
4.0
V_H = V_CM + 1.2V
3.5
V_L = V_CM – 1.2V
V_IN
3.0
V_OUT
2.5
2.0
1.5
1.0
Time (5ns/div)
OPA698
13
SBOS258D
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