THS4532_15 Datasheet, PDF (14/58 Pages) Texas Instruments – THS4532 Ultra Low Power, Rail-to-Rail Output, Fully-Differential Amplifier

THS4532
SLOS829A – FEBRUARY 2013 – REVISED JULY 2015
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Typical Characteristics: V_S = 2.7 V (continued)
V_S+ = 2.7 V, V_S– = 0 V, CM = open, V_OUT = 2 Vpp, R_F = 2 kΩ, R_L = 2 kΩ Differential, G = 1V/V, Single-Ended Input,
Differential Output, Input and Output Referenced to mid-supply unless otherwise noted.
10
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
−110
−120
−130
−140
−150
0
5k
V_S = 2.7 V
R_L = 100 Ω
10k
15k
Frequency (Hz)
G = 1 V/V
V_OUT = 4 V_PP
20k
24k
G006
R_F = 2 kΩ
−20
−30
−40
−50
−60
−70
−80
−90
−100
−110
−120
−130
−140
1k
10k
V_S = 2.7 V
R_L = 2 kΩ
Second Harmonic
Third Harmonic
100k
1M
Frequency (Hz)
G = 1 V/V
V_OUT =2 V_PP
10M
G007
R_F = 2 kΩ
Figure 7. 10-kHz FFT On Audio Analyzer
Figure 8. Harmonic Distortion vs Frequency
−10
Second Harmonic
−20
Third Harmonic
−30
−40
−50
−60
−70
−80
1
V_S = 2.7 V
R_L = 2 kΩ
2
3
V_OUT (V_pp)
G = 1 V/V
f = 1 MHz
4
G008
R_F = 2 kΩ
−40
−45
−50
−55
−60
−65
−70
−75
−80
0
2
V_S = 2.7 V
V_OUT = 2 V_PP
Second Harmonic
Third Harmonic
4
6
Gain (V/V)
R_F = 2 kΩ
f = 1 MHz
8
10
G009
R_L = 2 kΩ
Figure 9. Harmonic Distortion vs Output Voltage at 1 MHz
Figure 10. Harmonic Distortion vs Gain at 1 MHz
0
Second Harmonic
−10
Third Harmonic
−20
−30
−40
−50
−60
−70
−80
0 200 400 600 800 1k 1.2k 1.4k 1.6k 1.8k 2k
Load (W)
G010
V_S = 2.7 V
G = 1 V/V
R_F = 2 kΩ
V_OUT = 2 V_PP
f = 1 MHz
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
0.5
V_S = 2.7 V
R_L = 2 kΩ
Second Harmonic
Third Harmonic
1
1.5
V_OCM (V)
G = 1 V/V
V_OUT = 2 V_PP
2
G011
R_F = 2 kΩ
f = 1 MHz
Figure 11. Harmonic Distortion vs Load at 1 MHz
Figure 12. Harmonic Distortion V_OCM at 1 MHz
14
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