LMH2832 Datasheet, PDF (13/46 Pages) Texas Instruments – LMH2832 Fully Differential, Dual, 1.1-GHz, Digital Variable-Gain Amplifier

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LMH2832
SBOS709A – JULY 2016 – REVISED JULY 2016
Typical Characteristics (continued)
at T_A = 25°C, V_S+ = 5 V, R_i = 75 Ω, R_L = 150 Ω, maximum gain (1:2-Ω ratio transformer plus 30-dB DVGA gain), f = 5 MHz to
300 MHz, V_O converted to single-ended (SE) measurement with transformer, and default current setting (unless otherwise
noted); upon power-up, gain is set to mid-range
-30
Gain = 30 dB
-40
Gain = 22 dB
Gain = 14 dB
-50
Gain = 6 dB
Gain = 2 dB
-60
22
V_S = 4.5 V
V_S = 5 V
20
V_S = 5.25 V
18
-70
16
-80
14
-90
12
-100
-110
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
Differential Output Swing (V_PP)
D021
10
0 50 100 150 200 250 300 350 400 450 500
Frequency (MHz)
D023
Figure 25. HD3 vs Differential Output Swing (200 MHz)
20
V_S = 4.5 V
V_S = 5 V
19
V_S = 5.25 V
18
17
16
15
14
-40 -20
0
20 40 60
Temperature (°C)
80 100 110
D024
Figure 27. Output P1dB Compression vs Temperature
0
-10
-20
-30
-40
-50
-60
-70
-80
1
10
100
Frequency (MHz)
Scd21 / Sdd21
1000
8000
D035
Figure 29. Output Balance Error vs Frequency
Figure 26. Output P1dB Compression vs Frequency
80
70
60
50
40
30
20
10
0
1
10
100
1000
8000
Frequency (MHz)
D033
Sdd21 / Scc21
Figure 28. CMRR vs Frequency
-40
Channel A to B
-50
Channel B to A
-60
-70
-80
-90
-100
-110
0
50 100 150 200 250 300 350 400 450 500
Frequency (MHz)
D037
Figure 30. Channel-to-Channel Isolation vs Frequency
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