Datasheet

-
-
-
-
-
-
-
70
75
80
85
90
95
100
IMD (dBc)
2
50 100 150 200 250 300
Frequency(MHz)
R =100 W
L
R =200
R =500
R =1k
L
L
L
W
W
W
V =3V
OUT PP
F=2MHzD
Gain=+10dB
-74
76
78
80
82
84
86
88
90
92
94
96
98
100
-
-
-
-
-
-
-
-
-
-
-
-
-
IMD (dBc)
3
50 100 150 200 250 300
Frequency(MHz)
R =100 W
L
R =200
R =500
R =1k
L
L
L
W
W
W
Dashedlines:Gain= 6dB-
Solidlines:Gain=+10dB
V =3V
OUT PP
F=2MHzD
70
75
80
85
90
95
100
-
-
-
-
-
-
-
IMD (dBc)
2
50 100 150 200 250 300
Frequency(MHz)
R =100 W
L
R =200
R =500
R =1k
L
L
L
W
W
W
V =3V
OUT PP
F=2MHzD
Gain=+20dB
-74
76
78
80
82
84
86
88
90
92
94
96
98
100
-
-
-
-
-
-
-
-
-
-
-
-
-
IMD (dBc)
3
50 100 150 200 250 300
Frequency(MHz)
R =100 W
L
R =200
R =500
R =1k
L
L
L
W
W
W
Dashedlines:Gain=0dB
Solidlines:Gain=+20dB
V =3V
OUT PP
F=2MHzD
OIP (dBm)
3
50 100 150 200 250 300
Frequency(MHz)
V =3V
R =200
OUT PP
L
W
52
50
48
46
44
42
40
38
Gain=+20dB
Gain=+10dB
Gain=0dB
Gain= 6dB-
PGA870
www.ti.com SBOS436A –DECEMBER 2009–REVISED FEBRUARY 2011
TYPICAL CHARACTERISTICS (continued)
At T
A
= +25°C, V
S+
= +5 V, differential input signal, differential V
OUT
= 2 V
PP
, R
L
= 200 Ω differential, G = +20 dB, and input and
output common-mode at internal midsupply reference, unless otherwise noted.
THIRD-ORDER INTERMODULATION DISTORTION
SECOND-ORDER INTERMODULATION DISTORTION
FOR TWO GAINS AND FOUR OUTPUT LOADS (V
OUT
= 3
FOR FOUR OUTPUT LOADS (V
OUT
= 3 V
PP
) V
PP
)
Figure 18. Figure 19.
THIRD-ORDER INTERMODULATION DISTORTION
SECOND-ORDER INTERMODULATION DISTORTION
FOR TWO GAINS AND FOUR OUTPUT LOADS (V
OUT
= 3
FOR FOUR OUTPUT LOADS (V
OUT
= 3 V
PP
) V
PP
)
Figure 20. Figure 21.
OUTPUT THIRD-ORDER INTERCEPT vs FREQUENCY
(V
OUT
= 3 V
PP
)
Figure 22.
© 2009–2011, Texas Instruments Incorporated 9
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