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THS4531 Datasheet, PDF (16/55 Pages) Texas Instruments – Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier | |||
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THS4531
SLOS358B â SEPTEMBER 2011 â REVISED MARCH 2012
www.ti.com
TYPICAL CHARACTERISTICS: VS = 2.7V (continued)
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.
120
110
100
90
80
70
60
50
40
30
20
10
0
10
MAIN AMPLIFIER DIFFERENTIAL
OPEN-LOOP GAIN and PHASE
vs
FREQUENCY
0
Magnitude
Phase
â45
â90
â135
â180
100 1k 10k 100k 1M 10M 100M
Frequency (Hz)
G022
Figure 24.
OUTPUT BALANCE ERROR
vs
FREQUENCY
â30
VS = 2.7 V
G = 1 V/V
â40 RF = 2 kâ¦
RL = 2 kâ¦
â50
â60
â70
â80
100k
1M
10M
Frequency (Hz)
Figure 25.
30M
G023
VOCM SMALL-SIGNAL FREQUENCY RESPONSE
3
0
â3
â6
â9
â12 VS = 2.7 V
G = 1 V/V
â15 RF = 2 kâ¦
VOUT = 100 mVpp
â18
100k
1M
Frequency (Hz)
10M
Figure 26.
50M
G024
VOCM LARGE- and SMALL SIGNAL PULSE RESPONSE
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0
0.2-V Step
1-V Step
100 200 300 400 500 600 700 800 900 1000
Time (ns)
G025
Figure 27.
16
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