Applications Information

General Operation

1) Switches are open when power is off.

2) IN_, D_, and S_ should not exceed V+ or V-, even

with the power off.

3) Switch leakage is from each analog switch terminal

to V+ or V-, not to other switch terminals.

Operation with Supply Voltages

Other than ±15V

Using supply voltages less than ±15V will reduce the

analog signal range. The MAX4613 operates with

±4.5V to ±20V bipolar supplies or with a +4.5V to +40V

single supply; connect V- to GND when operating with

a single supply. Also, all device types can operate with

be connected to +5V to be TTL compatible, or to V+ for

CMOS-logic level inputs. The Typical Operating

Characteristics graphs show typical on-resistance with

±20V, ±15V, ±10V, and ±5V supplies. (Switching times

increase by a factor of two or more for operation at ±5V.)

Overvoltage Protection

Proper power-supply sequencing is recommended

for all CMOS devices. Do not exceed the absolute

maximum ratings because stresses beyond the list-

ed ratings may cause permanent damage to the

devices. Always sequence V+ on first, followed by

is not possible, add two small, external signal

diodes in series with supply pins for overvoltage

protection (Figure 1). Adding diodes reduces the

analog signal range to 1V below V+ and 1V above

V-, but low switch resistance and low leakage char-

acteristics are unaffected. Device operation is

unchanged, and the difference between V+ and V-

should not exceed +44V.

Quad, SPST Analog Switch

6

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Pin Description

PIN

DIP/SO/TSSOP

THIN QFN

NAME

FUNCTION

1, 8, 9, 16

6, 7, 14, 15

IN1–IN4

Logic Control Input

2, 7, 10, 15

5, 8, 13, 16

D1–D4

Analog-Switch Drain Output

3, 6, 11, 14

1, 4, 9, 12

S1–S4

Analog-Switch Source Output

4

2

V-

Negative-Supply Voltage Input

5

3

GND

Ground

12

10

VL

Logic-Supply Voltage Input

13

11

V+

Positive-Supply Voltage Input—Connected to Substrate

—

EP

PAD

Exposed Pad. Connect PAD to V+.

Figure 1. Overvoltage Protection Using External Blocking Diodes

V+

D

V-

S