THS40321-EP_15 Datasheet, PDF (29/38 Pages) Texas Instruments – 100-MHz LOW-NOISE HIGH-SPEED AMPLIFIERS

THS4031-EP
THS4032-EP
www.ti.com........................................................................................................................................................................................... SLOS610 – NOVEMBER 2008
always be soldered to a copper plane to fully use the heat dissipation properties of the PowerPAD™. The SOIC
package, on the other hand, is highly dependent on how it is mounted on the PCB. As more trace and copper
area is placed around the device, θ_JA decreases and the heat dissipation capability increases. The currents and
voltages shown in these graphs are for the total package. For the dual amplifier package (THS4032), the sum of
the RMS output currents and voltages should be used to choose the proper package.
MAXIMUM RMS OUTPUT CURRENT
vs
RMS OUTPUT VOLTAGE DUE TO THERMAL LIMITS
200
SO-8
180 ^q_JA ^{= 121 °C/W}
High-K Test PCB
160
Maximum Output
Current Limit Line
140
120
Package With
q_JA <= 120 °C/W
100
80
SO-8
q_JA = 167 °C/W
60
Low-K Test PCB
40
V_CC = ±5 V
20
T_J = 130 °C
T_A = 50 °C
0
0
1
2
3
4
5
|V_out| - RMS Output Voltage - V
Figure 63.
MAXIMUM RMS OUTPUT CURRENT
vs
RMS OUTPUT VOLTAGE DUE TO THERMAL LIMITS
200
Package With
180 _{qJA <= 60 °C/W}
160
Maximum Output
Current Limit Line
MAXIMUM RMS OUTPUT CURRENT
vs
RMS OUTPUT VOLTAGE DUE TO THERMAL LIMITS
1000
T_J = 130 °C
T_A = 50 °C
V_CC = ±15 V
DGN Package
q_JA = 58.4 °C/W
Maximum Output
Current Limit Line
100
10
0
SO-8 Package
q_JA = 98 °C/W
SO-8 Package ^{High-K Test PCB}
q_JA = 167 °C/W
Low-K Test PCB
3
6
9
12
15
|V_out| - RMS Output Voltage - V
Figure 64.
MAXIMUM RMS OUTPUT CURRENT
vs
RMS OUTPUT VOLTAGE DUE TO THERMAL LIMITS
1000
Both Channels
T_J = 130 °C
T_A = 50° C
Maximum Output _THS4032
Current Limits Line _{VCC = ±15 V}
140
DGN Package
120
q_JA = 58.4 °C/W
100
80
60
Safe
Operating
Area
THS4032
V_CC = ±5 V
40
20
0
0
SO-8 Package
q_JA = 167 °C/W
Low-K Test PCB
SO-8 Package
q_JA = 98 °C/W
High-K Test PCB
Both Channels
T_J = 130 °C
T_A = 50 °C
1
2
3
4
5
|V_out| - RMS Output Voltage - V
Figure 65.
100 ^{DGN Package}
q_JA = 58.4 °C/W
10
1
0
SO-8 Package
q_JA = 98 °C/W
High-K Test PCB
SO-8 Package
q_JA = 167 °C/W
Low-K Test PCB
Safe
Operating
Area
3
6
9
12
15
|V_out| - RMS Output Voltage - V
Figure 66.
Copyright © 2008, Texas Instruments Incorporated
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Product Folder Link(s): THS4031-EP THS4032-EP