MAX14753EUE+ Maxim Integrated Products, MAX14753EUE+ Datasheet - Page 13

• Manufacturer Part Number: MAX14753EUE+
• Description: IC MULTIPLEXER DUAL 4X1 16TSSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX14753EUE+

• Function: Multiplexer
• Circuit: 2 x 4:1
• On-state Resistance: 130 Ohm
• Voltage Supply Source: Single, Dual Supply
• Voltage - Supply, Single/dual (±): 20 V ~ 72 V, ±10 V ~ 36 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP
• Product: Multiplexer
• Number Of Lines (input / Output): 4.0 / 2.0
• Supply Voltage (max): 36 V
• Supply Voltage (min): 10 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Number Of Input Lines: 4.0
• Number Of Output Lines: 2.0
• Power Dissipation: 890 mW
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The MAX14752/MAX14753 are 8-to-1 and dual 4-to-1
high-voltage analog multiplexers. Both devices feature
60Ω (typ) on-resistance with 0.03Ω (typ) on-resistance
flatness. These low on-resistance multiplexers conduct
equally well in either direction.
The MAX14752 is an 8-to-1 multiplexer and MAX14753
is a dual 4-to-1 multiplexer. Both devices operate with
dual supplies of ±10V to ±36V or a single supply of
+20V to +72V. Both devices can also operate with
unbalanced supplies, such as +36V and -10V. These
multiplexers support rail-to-rail input and output signals.
The control logic level is defined via the EN input. These
devices do not require power-supply sequencing.
The current flowing through each on-channel of the
MAX14752/MAX14753 multiplexers must be limited to
±5mA for normal operation. If the current exceeds this
limit, an internal leakage current from that channel to
V
device if the max power dissipation is not exceeded.
For applications that require input voltages beyond the
normal operating voltages, the internal input diodes to
V
shown in Figure 11, series resistors can be employed at
the inputs to limit the currents flowing into the diodes dur-
ing undervoltage and overvoltage conditions. Choose the
Figure 11. Input Overvoltage and Undervoltage Clamping
SS
DD
appears. Larger input current does not destroy the
and V
SS
can be used to limit the input voltages. As
Applications Information
R
R
R
R
LIM
LIM
LIM
LIM
______________________________________________________________________________________
Detailed Description
Current Through the Mux
Input Voltage Clamping
R
LIM
R
R
R
LIM
LIM
LIM
V
V
DD
SS
8-Channel/Dual 4-Channel
72V Analog Multiplexers
limiting resistors such that the input currents are limited to
I
tors can be calculated as the larger of R
During an undervoltage or overvoltage condition, the
input impedance is equal to R
dissipation due to the fault currents needs to be calcu-
lated. The MAX14752/MAX14753 multiplexer operates
normally on a channel that is on during an overvoltage
or undervoltage clamping condition on a second chan-
nel that is not switched.
If input voltages are expected to go beyond the supply
voltages, but within the absolute maximum supply volt-
ages of the MAX14752/MAX14753, add two diodes in
series with the supplies as shown in Figure 12.
During undervoltage and overvoltage events, the internal
diodes pull V
this scheme is that the input impedance is high and
currents do not flow through the MAX14752/MAX14753
during overvoltage and undervoltage events. The input
voltages must be limited to the voltages specified in the
Absolute Maximum Ratings section.
IN_
(max) = 100mA. The values of the current limit resis-
DD
S0
R
R
/V
S1
LIM+
LIM -
CONTROL
SS
S2
supplies up/down. An advantage of
=
=
EN
V – V
V
SS
GND
IN_
I
IN_
I
IN_
Beyond-the-Rail Input
(max –V
(max
MAX14752
IN_
LIM
(max
(
)
m m in
. The additional power
)
)
DD
)
LIM+
OUT
and R
LIM-.
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