Datasheet

MAX4591/MAX4592/MAX4593
High-Speed, Single-Supply,
Quad, SPST Analog Switches
6 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V- = GND = 0, IN_ = 0 or V+, T
A
= +25°C, unless otherwise noted.)
__________Applications Information
Overvoltage Protection
Proper power-supply sequencing is recommended for
all CMOS devices. Do not exceed the absolute maxi-
mum ratings because stresses beyond the listed rat-
ings may cause permanent damage to the devices.
Always sequence V+ on first, followed by the logic
inputs. If power-supply sequencing is not possible, add
a small signal diode in series with V+ for overvoltage
protection (Figure 1). Adding a diode reduces the ana-
log signal range to 1V below V+, but low switch resis-
tance and low leakage characteristics are unaffected.
Device operation is unchanged, and the difference
between V+ and V- should not exceed 17V.
______________________________________________________________Pin Description
POSITIVE SUPPLY
COM
NO
V
g
V+
V- GND
Figure 1. Overvoltage Protection Using Two External Blocking
Diodes
0
40
20
80
60
100
120
10 12 1311 14 15 16
TURN-ON/OFF TIME
vs. POWER-SUPPLY VOLTAGE
MAX4591 toc09
POWER-SUPPLY VOLTAGE (V)
t
ON
, t
OFF
(ns)
V
COM
= 10V
t
ON
t
OFF
10
-90
0.1 10 1001 1000
FREQUENCY RESPONSE
MAX4591 toc10
FREQUENCY (MHz)
LOSS (dB)
-80
-70
-60
-50
-40
-30
-20
-10
0
V+ = 15V ON-RESPONSE
OFF-ISOLATION
Positive Supply Voltage Input. Connected to substrate.V+13
No Connection. Not internally connected.N.C.12
GroundGND5
Negative Supply Voltage Input. Normally connected to ground.V-4
PIN
Switch Inputs
NO1–NO4
or
NC1–NC4
3, 14, 11, 6
Analog Switch Common TerminalCOM1–COM42, 15, 10, 7
Switch Input Terminals. Drive ≤ 0.8V for logic “0”; drive ≥ 5V for logic “1”.IN1–IN41, 16, 9, 8
FUNCTIONNAME