0

50

100

150

200

250

±20

±15

±10

±5

0

5

10

15

20

Source or Drain Voltage (V)

C001

V

DD = 15 V

V

SS = ±15 V

V

DD = 18 V

V

SS = ±18 V

V

DD = 16.5 V

V

SS = ±16.5 V

V

DD = 13.5 V

V

SS = ±13.5 V

26

MUX508, MUX509

SBAS758C – JANUARY 2016 – REVISED SEPTEMBER 2016

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Product Folder Links: MUX508 MUX509

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Copyright © 2016, Texas Instruments Incorporated

Feature Description (continued)

9.3.4 Rail-to-Rail Operation

A valid analog signal for the MUX50x ranges from VSS to VDD. The input signal to the MUX50x can swing from

VSS to VDD without any significant degradation in performance. The on-resistance of the MUX50x varies with

input signal, as shown in Figure 41.

Figure 41. On-Resistance vs Source or Drain Voltage

9.4 Device Functional Modes

When the EN pin of the MUX50x is pulled high, one of the switches is closed based on the state of the address

lines. When the EN pin is pulled low, all the switches are in an open state irrespective of the state of the address

lines. The EN pin can be connected to VDD (as high as 36 V).