LMH6401_16 Datasheet, PDF (10/48 Pages) Texas Instruments – LMH6401 DC to 4.5 GHz, Fully-Differential, Digital Variable-Gain Amplifier

LMH6401
SBOS730A – APRIL 2015 – REVISED MAY 2015
www.ti.com
Typical Characteristics (continued)
At T_A = 25°C, VS– = –2.5 V, VS+ = 2.5 V, VOCM = 0 V, R_LOAD = 200-Ω differential (R_{o(internal, diff)} = 20 Ω), V_O = 2 V_PPD, and A_V
= 26 dB, unless otherwise noted. Differential input and output, and input and output pins referenced to mid-supply, unless
otherwise noted. Measured using an EVM as discussed in the Parameter Measurement Information section.
50
44
-40°C
4.0 V
25°C
5.0 V
45
85°C
42
5.25 V
40
40
35
38
30
25
36
20
10
100
Frequency (MHz)
P_O = –2 dBm per tone
1000 2000
D019
Figure 7. Output IP3 vs Frequency and Temperature
60
200 MHz
55
500 MHz
1000 MHz
50
2000 MHz
45
40
35
30
25
20
15
-2 -1
012345678
Total Output Power per tone (dBm)
9 10
D022
Figure 9. Output IP3 vs Total Output Power per Tone
0
-10
Gain = 26dB
Gain = 14dB
-20
Gain = 2dB
-30
Gain = -6dB
-40
-50
-60
-70
-80
-90
-100
-110
10
100
Frequency (MHz)
1000 2000
D003
34
-45
-25
-5
15
35
55
75
Temperature (°C)
f = 500 MHz, P_O = –2 dBm per tone
90
D020
Figure 8. Output IP3 vs Supply Voltage and Temperature
-10
IMD2
-20
IMD3
-30
-40
-50
-60
-70
-80
-90
-100
10
100
Frequency (MHz)
P_O = –2 dBm per tone
1000 2000
D023
Figure 10. Intermodulation Distortion vs Frequency
0
-10
Gain = 26dB
Gain = 14dB
-20
Gain = 2dB
-30
Gain = -6dB
-40
-50
-60
-70
-80
-90
-100
-110
10
100
Frequency (MHz)
1000 2000
D004
Figure 11. Second-Order Harmonic Distortion vs Frequency
Figure 12. Third-Order Harmonic Distortion vs Frequency
10
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