–50
VS = 5V
VOUT,dm = 2V p-p
–60
HD3 (F = 20MHz)
–70
–80
HD2 (F = 20MHz)
–90
HD2 (F = 5MHz)
–100 HD3 (F = 5MHz)
–110
200 300 400 500 600 700 800 900 1000
RLOAD – ⍀
TPC 26. Harmonic Distortion vs.
RLOAD, G = 1
–50
VS = ؎5V
VOUT,dm = 2V p-p
–60
HD3 (F = 20MHz)
–70
–80
HD2 (F = 20MHz)
HD2 (F = 5MHz)
–90
–100
HD3 (F = 5MHz)
–110
200 300 400 500 600 700 800 900 1000
RLOAD – ⍀
TPC 27. Harmonic Distortion vs.
RLOAD, G = 1
AD8132
1000⍀
499⍀
LPF
49.9⍀ 0.1F
2:1 TRANSFORMER
300⍀
HPF
ZIN = 50⍀
24.9⍀ 499⍀
1000⍀
300⍀
TPC 28. Harmonic Distortion Test Circuit, G = 2, RL,dm = 800 Ω
–40
RL,dm = 800⍀
–50 VOUT,dm = 1V p-p
HD3 (VS = 3V)
–60
–70
–80
HD2 (VS = 5V)
–90
–100
–110
0
HD2 (VS = 3V)
HD3 (VS = 5V)
10 20 30 40 50 60 70
FREQUENCY – MHz
TPC 29. Harmonic Distortion vs.
Frequency, G = 2
–20
RL,dm = 800⍀
–30 VOUT,dm = 4V p-p
–40 HD2 (VS = 5V)
HD3 (VS = 5V)
–50
HD3 (VS = ؎5V)
–60
–70
–80
HD2 (VS = ؎5V)
–90
–100
0 10 20 30 40 50 60 70 80
FREQUENCY – MHz
TPC 30. Harmonic Distortion vs.
Frequency, G = 2
–40
VS = 5V
–50 RL,dm = 800⍀
HD3 (F = 20MHz)
–60
–70
HD2 (F = 20MHz)
–80
–90
–100
HD2 (F = 5MHz)
–110
HD3 (F = 5MHz)
–120
0
1
2
3
4
DIFFERENTIAL OUTPUT VOLTAGE – V p-p
TPC 31. Harmonic Distortion vs.
Differential Output Voltage, G = 2
REV. 0
–9–