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OPA688U Datasheet(PDF) 10 Page - Texas Instruments

Part # OPA688U
Description  Unity Gain Stable, Wideband VOLTAGE LIMITING AMPLIFIER
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

OPA688U Datasheet(HTML) 10 Page - Texas Instruments

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OPA688
10
SBOS082A
TYPICAL PERFORMANCE CURVES : VS = +5V
G = +2, RF = 402Ω, RL = 500Ω tied to VCM = 2.5V, VL = VCM –1.2V, VH = VCM +1.2V, (Figure 2 for AC performance only), unless otherwise noted.
6
3
0
–3
–6
–9
–12
–15
–18
–21
–24
INVERTING SMALL-SIGNAL
FREQUENCY RESPONSE
Frequency (Hz)
1M
10M
100M
1G
V
O = 0.2Vp-p
G = –5
G = –2
G = –2
G = –1
12.0
9.0
6.0
3.0
0
–3.0
–6.0
–9.0
–12.0
–15.0
–18.0
LARGE-SIGNAL FREQUENCY RESPONSE
Frequency (Hz)
1M
10M
100M
1G
2.0Vp-p
≤ 0.2Vp-p
G = +2
–40
–45
–50
–55
–60
–65
–70
–75
–80
–85
–90
HARMONIC DISTORTION vs FREQUENCY
Frequency (Hz)
1M
10M
20M
V
O = 2Vp-p
R
L = 500Ω
HD2
HD3
12
9
6
3
0
–3
–6
–9
–12
–15
–18
NON-INVERTING SMALL-SIGNAL
FREQUENCY RESPONSE
Frequency (Hz)
1M
10M
100M
1G
V
O = 0.2Vp-p
G = +1, R
C = ∞, RF = 25Ω
G = +1, R
C = 175Ω, RF = 25Ω
G = +2, R
C = ∞
G = +5, R
C = ∞
R
F
R
S
150
R
G
R
C
V
O
V
IN
–40
–45
–50
–55
–60
–65
–70
–75
–80
–85
–90
HARMONIC DISTORTION NEAR LIMIT VOLTAGES
| Limit Voltages – 2.5V
DC |
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
V
O = 2.5V ±1Vp
f
1 = 5MHz
R
L = 500Ω
HD2
HD3
V
H AND VL—LIMITED PULSE RESPONSE
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
Time (20ns/div)
V
H = VCM +1.2V
V
L = VCM –1.2V
V
O
V
O
V
IN
V
IN
V
CM = 2.5V


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