THS4021 datasheet(18/22 Pages) TI

18 / 22 page

THS4021, THS4022

350-MHz LOW-NOISE HIGH-SPEED AMPLIFIERS

SLOS265B – SEPTEMBER 1999 – REVISED FEBRUARY 2000

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

APPLICATION INFORMATION

general PowerPAD design considerations (continued)

Figure 42

Package With

θJA ≤ 60°C/W

SO-8 Package

θJA = 98°C/W

High-K Test PCB

VCC = ± 5 V

TJ = 150°C

TA = 50°C

Both Channels

100

140

180

200

160

120

| VO | – RMS Output Voltage – V

Maximum Output

Current Limit Line

THS4022

MAXIMUM RMS OUTPUT CURRENT

RMS OUTPUT VOLTAGE DUE TO THERMAL LIMITS

SO-8 Package

θJA = 167°C/W

Low-K Test PCB

Safe Operating Area

Figure 43

100

1000

Maximum Output

Current Limit Line

| VO | – RMS Output Voltage – V

VCC = ± 15 V

TJ = 150°C

TA = 50°C

Both Channels

THS4022

MAXIMUM RMS OUTPUT CURRENT

RMS OUTPUT VOLTAGE DUE TO THERMAL LIMITS

SO-8 Package

θJA = 167°C/W

Low-K Test PCB

DGN Package

θJA = 58.4°C/W

Safe Operating Area

SO-8 Package

θJA = 98°C/W

High-K Test PCB

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