ISL59482_14 Datasheet, PDF (10/15 Pages) Intersil Corporation – Dual, 500MHz Triple, Multiplexing Amplifiers

ISL59482
Typical Performance Curves V_S = ±5V, R_L = 500Ω to GND, T_A = +25°C, unless otherwise specified. (Continued)
JEDEC JESD51-7 HIGH EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD - QFN EXPOSED
4 ^{DIEPAD SOLDERED TO PCB PER JESD51-5}
3 2.70W
2
QFN48
_JA = +37°C/W
1
0
0
25
50
75 85 100 125 150
AMBIENT TEMPERATURE (°C)
FIGURE 26. PACKAGE POWER DISSIPATION vs AMBIENT TEMPERATURE
Pin Equivalent Circuits
V+
IN
LOGIC PIN
V-
CIRCUIT 1
21k
+
33k ^1.2V-
CIRCUIT 2
V+
GND
V-
V+
OUT
V-
CIRCUIT 3
V1+
GNDA1
GNDB1
GNDC1
V1-
CAPACITIVELY
COUPLED
ESD CLAMP
CIRCUIT 4A
V2+
GNDA2
GNDB2
GNDC2
V2-
CAPACITIVELY
COUPLED
ESD CLAMP
CIRCUIT 4B
SUBSTRATE 1
V1-
~1M
SUBSTRATE 2
V2-
~1M
THERMAL HEAT SINK PAD
AC Test Circuits
V_IN
50Ω
or
75Ω
ISL59482
C_L
5pF
R_L
500Ω
FIGURE 27A. TEST CIRCUIT WITH OPTIMAL OUTPUT LOAD
V_IN
50Ω
OR
75Ω
ISL59482
R_S
C_L ^475Ω
5pF
50Ω
OR
75Ω
TEST
EQUIPMENT
50Ω
OR
75Ω
FIGURE 27B. TEST CIRCUIT FOR MEASURING WITH 50ΩOR 75Ω
INPUT TERMINATED EQUIPMENT
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FN6209.4
August 8, 2014