Datasheet

MAX354/MAX355
Fault-Protected Analog Multiplexers
______________________________________________________________________________________ 11
DECODERS / DRIVERS
COM
NO1
NO2
NO3
NO4
NO5
NO6
NO7
NO8
A0 A1 A2 EN
V+ V- GND
MAX354
A0A1A2 EN ON SWITCH
X
0
0
0
0
1
1
1
1
X
0
0
1
1
0
0
1
1
X
0
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
NONE
1
2
3
4
5
6
7
8
LOGIC "O" V
AL
≤ +0.8V, LOGIC "1" V
AH
≥ +2.4V
MAX354
__________________________________________Functional Diagrams/Truth Tables
DECODERS / DRIVERS
COMA
NO1A
NO2A
NO3A
NO4A
A0 A1 EN
V+ V- GND
MAX355
COMB
NO1B
NO2B
NO3B
NO4B
A0A1 EN ON SWITCH
X
0
0
1
1
X
0
1
0
1
0
1
1
1
1
NONE
1
2
3
4
LOGIC "O" V
AL
≤ +0.8V, LOGIC "1" V
AH
≥ +2.4V
MAX355
Table 2a. Typical Off-Isolation Rejection
Ratio
Table 2b. Typical Crosstalk Rejection Ratio
Frequency 100kHz 1MHz
One Channel Driven 100dB 80dB
Frequency 100kHz 1MHz
R
L
= 1.5kΩ 92dB 72dB
R
L
= 10kΩ 76dB 56dB
Test Conditions: Specified R
L
connected from OUT to ground,
EN = +5V, A
0
= A
1
= A
2
= +5V (Channel 1 selected). 20Vp-p
at the tabulated frequency is applied to Channel 2. All other
channels are open circuited. Similar crosstalk rejection can be
observed between any two channels.
Test Conditions: V
IN
= 20Vp-p at the tabulated frequency,
R
L
= 1.5kΩ between OUT and ground, EN = 0V.
20Vp-p
V
ISO
= 20log —————
V
OUT
(p-p)