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THS4531A_15 Datasheet, PDF (20/59 Pages) Texas Instruments – THS4531A Ultra Low-Power, Rail-to-Rail Output, Fully Differential Amplifier | |||
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THS4531A
SLOS823B â DECEMBER 2012 â REVISED JUNE 2015
Typical Characteristics: VS = 5 V (continued)
â10
VS = 5 V
â20 G = 1 V/V
RF = 2 kâ¦
â30 RL = 2 kâ¦
VOUT = 2 Vpp Envelope
â40
â50
â60
â70
â80
â90
1
Second Intermodulation
Third Intermodulation
Frequency (MHz)
10
G038
Figure 46. Two-Tone, 2nd and 3rd Order Intermodulation
Distortion vs Frequency
1.2
VSAT High
1
VSAT Low
0.8
VS = 5 V
0.6 G = 2 V/V
RF = 2 kâ¦
0.4
0.2
0
0.1
1
10
30
Differential Load Current (mA)
G040
Figure 48. Single-Ended Output Saturation Voltage vs
Load Current
3
0
â3 VS = 5 V, G = 1 V/V
â6
RF = 2 kâ¦, RL = 2 kâ¦
VOUT = 100 mVpp
â9
â12
â15
â18
â21
100k
CL = 0 pF, RO = 0 â¦
CL = 15 pF, RO = 200 â¦
CL = 39 pF, RO = 100 â¦
CL = 120 pF, RO = 50 â¦
CL = 470 pF, RO = 20 â¦
CL = 1200 pF, RO = 12 â¦
1M
10M
Frequency (Hz)
100M
G042
Figure 50. Frequency Response vs CLOAD
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5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
50 100
VOUT MAX
VOUT MIN
VS = 5 V
G = 2 V/V
RF = 2 kâ¦
1k
Load Resistance (â¦)
10k
G039
Figure 47. Single-Ended Output Voltage Swing vs Load
Resistance
100
VS = 5 V
G = 1 V/V
RF = 2 kâ¦
10 VOUT = 100 mVpp
1
0.1
0.01
10k
100k
1M
Frequency (Hz)
10M
40M
G041
Figure 49. Main Amplifier Differential Output Impedance vs
Frequency
200
100
10
1
1
10
100
CLOAD (pF)
VS = 5 V
G = 1 V/V
RF = 2 kâ¦
RL = 2 kâ¦
1k 2k
G043
Figure 51. RO vs CLOAD
20
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