Datasheet
Applications Information
Operating Considerations for
High-Voltage Supply
The MAX4731/MAX4732/MAX4733 operate to +11V
with some precautions. The absolute maximum rating
for V+ is +12V (referenced to GND). When operating
near this region, bypass V+ with a minimum 0.1µF
capacitor to ground as close to the IC as possible.
Logic Levels
The MAX4731/MAX4732/MAX4733 are TTL compatible
when powered from a single +5V supply. When pow-
ered from other supply voltages, the logic inputs should
be driven rail-to-rail. For example, with a +11V supply,
IN1 and IN2 should be driven low to 0V and high to
11V. With a +3.3V supply, IN1 and IN2 should be dri-
ven low to 0V and high to 3.3V. Driving IN1 and IN2 rail-
to-rail minimizes power consumption.
MAX4731/MAX4732/MAX4733
50
Ω,
Dual SPST Analog Switches in UCSP
_______________________________________________________________________________________ 7
Pin Description
Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted.)
TURN-ON/OFF TIME
vs. TEMPERATURE
MAX4731-33 toc10
TEMPERATURE (
°
C)
t
ON/OFF
(ns)
6040-20 0 20
10
20
30
40
50
60
70
80
0
-40 80
t
ON
,
V+ = +3.0V
t
ON
,
V+ = +5.0V
t
OFF
,
V+ = +3.0V
t
OFF
,
V+ = +5.0V
FREQUENCY RESPONSE
MAX4731-33 toc11
FREQUENCY (Hz)
LOSS (dB)
100M10M1M100k
-100
-80
-60
-40
-20
0
-120
10k 1G
ON-LOSS
V+ = +3V
OFF-ISOLATION
CROSSTALK
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
MAX4731-33 toc12
FREQUENCY (Hz)
THD (%)
10k1k100
0.001
0.01
0.1
1
0.0001
10 100k
V
COM
= 2V
P-P
BW = 30kHz
R
L
= 1k
Ω
V+ = +3.0V
R
L
= 1k
Ω
V+ = +5.0V
R
L
= 100k
Ω
V+ = +3.0V
R
L
= 100k
Ω
V+ = +5.0V
PIN
MAX4731 MAX4732 MAX4733
UCSP
µMAX/
TDFN
UCSP
µMAX/
TDFN
UCSP
µMAX/
TDFN
NAME FUNCTION
A1 1 —— A1 1 NO1 Analog-Switch Normally Open Terminal
A2 2 A2 2 A2 2 COM1 Analog-Switch Common Terminal
A3 4 A3 4 A3 4 GND Ground. Connect to digital ground.
B1 7 B1 7 B1 7 IN1 Logic-Control Digital Input
B3 3 B3 3 B3 3 IN2 Logic-Control Digital Input
C1 8 C1 8 C1 8 V+ Positive Supply Voltage Input
C2 6 C2 6 C2 6 COM2 Analog-Switch Common Terminal
C3 5 —— ——NO2 Analog-Switch Normally Open Terminal
——A1 1 ——NC1 Analog-Switch Normally Closed Terminal
——C3 5 C3 5 NC2 Analog-Switch Normally Closed Terminal
—
EP (TDFN
onl
y)
—
EP (TDFN
onl
y)
—
EP (TDFN
onl
y)
EP Exposed Pad. Connect to V+.