LMH6518_15 Datasheet, PDF (16/41 Pages) Texas Instruments – LMH6518 900 MHz, Digitally Controlled, Variable Gain Amplifier

LMH6518
SNOSB21C – MAY 2008 – REVISED JULY 2013
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Typical Performance Characteristics (continued)
Unless otherwise specified, Input CM = 2.5V, V_CM = 1.2V, V_{CM AUX} = 1.2V, Single-ended input drive, V_CC = 5V, V_DD = 3.3V, R_L
= 100Ω differential (both Main & Auxiliary Outputs), V_OUT = 0.7 V_PP differential (both Main and Auxiliary Outputs), Main output
specification (Auxiliary is labeled “Auxiliary”), full bandwidth setting, gain = 18.8 dB (Preamp LG, 0 dB ladder attenuation), Full
Power setting ⁽¹⁾.
Output Offset Voltage (Typical Unit 3)
20
V_{OS_CM}
vs.
V_CM
5
15
HG
10
5
25°C _-40°C
3
85°C
1
-1
25°C
-3
0
LG
-5
-10
-15
85°C
-5
-7
-40°C
-9
-11
-13
-20
0
4
8
12
16
20
LADDER ATTENUATION (dB)
Figure 44.
-15
0.7 0.9 1.1 1.3 1.5 1.7
V_CM (V)
Figure 45.
Supply Current
vs.
Supply Voltage
225
Supply Current
vs.
Supply Voltage
0.22
220
0.2
215
210 85°C
205
200
25°C
-40°C
0.18
0.16
0.14
85°C
25°C
0.12
-40°C
195
4.5 4.7 4.9 5.1 5.3 5.5
V_CC (V)
Figure 46.
0.1
2.8 2.9
3 3.1 3.2 3.3 3.4 3.5 3.6
V_DD (V)
Figure 47.
Input Bias Current
vs.
Input CM
0.2
0.18
0.16
0.14
0.12
0.1
0.08 _85°C
0.06
25°C
0.04
-40°C
0.02
0
1.5
2
2.5
3
3.5
V_{I_CM} (V)
Figure 48.
Auxiliary Output Voltage (Hi-Z Mode)
2400
R_L = 100:
2200 ^VCM_Aux ^{= 1.2V}
No CM Load
2000 +OUT Aux and -OUT Aux
1800
1600
85°C
25°C
1400
1200
-40°C
1000
4.5 4.7 4.9 5.1 5.3 5.5
V_CC (V)
Figure 49.
16
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