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THS4531A Datasheet, PDF (11/51 Pages) Texas Instruments – Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier | |||
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THS4531A
SLOS823A â DECEMBER 2012 â REVISED JANUARY 2013
TYPICAL CHARACTERISTICS: VS = 2.7V
Test conditions unless otherwise noted: VS+ = 2.7 V, VSâ = 0V, CM = open, VOUT = 2Vpp, RF = 2kΩ, RL = 2kΩ Differential, G =
1V/V, Single-Ended Input, Differential Output, Input and Output Referenced to mid-supply unless otherwise noted.
SMALL-SIGNAL FREQUENCY RESPONSE
21
18
G = 1 V/V
15
G = 2 V/V
12
G = 5 V/V
9
G = 10 V/V
6
3
0
â3
â6 VS = 2.7 V
â9 G = 1 V/V
â12 RF = 2 kâ¦
â15 RL = 2 kâ¦
â18 VOUT = 100 mVpp
â21
100k
1M
10M
100M
Frequency (Hz)
G001
Figure 2.
LARGE-SIGNAL FREQUENCY RESPONSE
21
18
G = 1 V/V
15
G = 2 V/V
12
G = 5 V/V
9
G = 10 V/V
6
3
0
â3
â6 VS = 2.7 V
â9 G = 1 V/V
â12 RF = 2 kâ¦
â15 RL = 2 kâ¦
â18 VOUT = 2 Vpp
â21
100k
1M
10M
100M
Frequency (Hz)
G002
Figure 3.
LARGE- and SMALL-SIGNAL PULSE RESPONSE
1.5
VS = 2.7 V
0.5-V Step
1
G = 1 V/V
RF = 2 kâ¦
2-V Step
RL = 2 kâ¦
0.5
0
â0.5
â1
â1.5
0
20
40
60
80
100
Time (ns)
G003
Figure 4.
SINGLE-ENDED SLEW RATE
vs
400
VS = 2.7 V
350 G = 2 V/V
RF = 2 kâ¦
300 RL = 200 â¦
VOUT STEP
250
200
150
100
50
0
0
0.5
1
1.5
2
Differential VOUT (V)
Figure 5.
Rising
Falling
2.5
G004
DIFFERENTIAL SLEW RATE
vs
250
VS = 2.7 V
G = 2 V/V
200 RF = 2 kâ¦
RL = 200 â¦
VOUT STEP
150
100
50
Rising
Falling
0
0
1
2
3
4
5
6
Differential VOUT (V)
G053
Figure 6.
OVERDRIVE RECOVERY
2
4
VIN
1.5
VOUT 3
1
2
0.5
1
0
0
â0.5
â1
â1 VS = 2.7 V
â2
G = 2 V/V
â1.5 RF = 2 kâ¦
â3
RL = 2 kâ¦
â2
â4
0 100 200 300 400 500 600 700 800 900 1000
Time (ns)
G005
Figure 7.
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