ISL59444 Datasheet, PDF (7/11 Pages) Intersil Corporation – 1GHz, 4 x 1 Multiplexing Amplifier with Synchronous Controls

ISL59444
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
1.4
1.250W
1.2
1
0.8
θ_JA^{S=O801°6C(/0W.150”)}
0.6
0.4
0.2
0
0
25
50
75 85 100 125 150
AMBIENT TEMPERATURE (°C)
JEDEC JESD51-3 LOW EFFECTIVE THERMAL
CONDUCTIVITY TEST BOARD
1
0.9
909mW
0.8
0.7
0.6
0.5
θ_{JA =S1O1106°C(0/W.150”)}
0.4
0.3
0.2
0.1
0
0
25
50
75 85 100 125 150
AMBIENT TEMPERATURE (°C)
FIGURE 19. PACKAGE POWER DISSIPATION vs AMBIENT
TEMPERATURE
FIGURE 20. PACKAGE POWER DISSIPATION vs AMBIENT
TEMPERATURE
Pin Descriptions
PIN NUMBER
1
2, 6, 8
PIN NAME
IN0
NIC
3
IN1
4
GND
5
IN2
7
IN3
9
V-
10
LE1
11
LE2
12
OUT
13
HIZ
14
S1
15
S0
16
V+
EQUIVALENT
CIRCUIT
Circuit 1
Circuit 1
Circuit 4
Circuit 1
Circuit 1
Circuit 4
Circuit 2
Circuit 2
Circuit 3
Circuit 2
Circuit 2
Circuit 2
Circuit 4
DESCRIPTION
Input for channel 0
Not Internally Connected; it is recommended this pin be tied to ground to minimize
crosstalk.
Input for channel 1
Ground pin
Input for channel 2
Input for channel 3
Negative Power Supply
Synchronized channel switching: When LE1 is low, the master control latch loads the
next switching address. The Mux Amp is configured for this address when LE2 goes low.
Synchronized operation results when LE2 is the inverse of LE1. Channel selection is
asynchronous (changes with any control signal change) if both LE1 and LE2 are both
low.
Synchronized channel switching: When LE2 is low, the newly selected channel, stored
in the master latch via LE1 is selected. Synchronized operation results when LE2 is the
inverse of LE1. Channel selection is asynchronous (changes with any control signal
change) if both LE1 and LE2 are both low.
Output
Output disable (active high); there are internal pull-down resistors, so the device will be
active with no connection; "HI" puts the output in high impedance state.
Channel selection pin MSB (binary logic code)
Channel selection pin LSB (binary logic code)
Positive power supply
7
FN7451.1
September 21, 2005