Datasheet

Caution: The absolute maximum V+ to V- differential
voltage is 13V. Typical “±6 Volt” or “12 Volt” sup-
plies with ±10% tolerances can be as high as 13.2V
from V+ to V-. This voltage can damage the
MAX4598. Even ±5% tolerance supplies may have
overshoot or noise spikes that exceed 13V.
Single-Supply Operation
The MAX4598 operates from a single supply between
+2.7V and +12V when V- is connected to GND. All of
the bipolar precautions must be observed. However,
these parts are optimized for ±5V operation, and most
AC and DC characteristics are degraded significantly
when departing from ±5V. As the overall supply voltage
(V+ to V-) is lowered, switching speed, on-resistance,
off-isolation, and distortion are degraded (see
Typical
Operating Characteristics ).
Single-supply operation also limits signal levels and
interferes with grounded signals. When V- = 0, AC sig-
nals are limited to -0.3V. Voltages below -0.3V can be
clipped by the internal ESD-protection diodes, and the
parts can be damaged if excessive current flows.
Power Off
When power to the MAX4598 is off (i.e., V+ = V- = 0),
the Absolute Maximum Ratings still apply: neither logic-
level inputs on NO_ nor signals on COM_ can exceed
±0.3V. Voltages beyond ±0.3V cause the internal ESD-
protection diodes to conduct, and the parts can be
damaged if excessive current flows.
MAX4598
Low-Voltage, Combination Single-Ended
8-to-1/Differential 4-to-1 Multiplexer
_______________________________________________________________________________________ 9
Test Circuits/Timing Diagrams
50%
50%
t
R
< 20ns
t
F
< 20ns
V
OUT
V+
0V
V
NO1
0V
V
NO8
LOGIC
INPUT
V
EN
SWITCH
OUTPUT
V+
A1
A2
A0
+5V
V
OUT
-5V
GND
V+
V-
EN
NLATCH
NO1
NO2–NO7
NO8
COMA
+3V
50Ω
MAX4598
300Ω
35pF
90%
90%
t
TRANS
t
TRANS
-3V
LATCH
A3
Figure 1. Transition Time
50% 50%
t
OPEN
t
R
< 20ns
t
F
< 20ns
V
OUT
V+
0V
LOGIC
INPUT
V
A
SWITCH
OUTPUT
V
COM
+5V
V
OUT
-5V
GND
V+NLATCH
V-
A0
A1
A2
EN
NO1–NO8
COMA
+3V
50Ω
MAX4598
300Ω
35pF
90%
0V
V
A
LATCH
A3
Figure 2. Break-Before-Make Interval