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THS4531 Datasheet, PDF (12/54 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.
10-kHz FFT ON AUDIO ANALYZER
10
0 VS = 2.7 V
â10 G = 1 V/V
â20 RF = 2 kâ¦
â30 RL = 100 kâ¦
â40 VOUT = 4 Vpp
â50
â60
â70
â80
â90
â100
â110
â120
â130
â140
â150
0
5k
10k
15k
20k
Frequency (Hz)
Figure 8.
24k
G006
HARMONIC DISTORTION
vs
FREQUENCY
â20
â30 VS = 2.7 V
â40
G = 1 V/V
RF = 2 kâ¦
â50 RL = 2 kâ¦
â60 VOUT = 2 Vpp
â70
â80
â90
â100
â110
â120
â130
â140
1k
Second Harmonic
Third Harmonic
10k
100k
1M
Frequency (Hz)
10M
G007
Figure 9.
HARMONIC DISTORTION
vs
OUTPUT VOLTAGE at 1 MHz
â10
Second Harmonic
â20
Third Harmonic
â30 VS = 2.7 V
G = 1 V/V
â40 RF = 2 kâ¦
RL = 2 kâ¦
â50 f = 1 MHz
â60
â70
â80
1
2
3
4
VOUT (Vpp)
G008
Figure 10.
HARMONIC DISTORTION
vs
GAIN at 1 MHz
â40
VS = 2.7 V
â45 RF = 2 kâ¦
RL = 2 kâ¦
â50 VOUT = 2 Vpp
f = 1 MHz
â55
â60
â65
â70
â75
â80
0
Second Harmonic
Third Harmonic
2
4
6
Gain (V/V)
Figure 11.
8
10
G009
12
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