MAX306CSLASHD datasheet(6/12 Pages) MAXIM

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Applications Information

Operation with Supply Voltages

Other than ±15V

Using supply voltages other than ±15V will reduce the

analog signal range. The MAX306/MAX307 switches

operate with ±4.5V to ±20V bipolar supplies or with a +5V

to +30V single supply; connect V- to GND when operating

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

with unbalanced supplies such as +24V and -5V. The

Typical Operating Characteristics graphs show typical on-

resistance with 20V, 15V, 10V, and 5V supplies. (Switching

times increase for 5V operation, up to a maximum of 10µs.)

Overvoltage Protection

Proper power-supply sequencing is recommended

for all CMOS devices. Do not exceed the absolute

maximum ratings because stresses beyond the listed

ratings may cause permanent damage to the devices.

Always sequence V+ on first, then V-, followed by either

the logic inputs, NO or COM. If power-supply sequencing

is not possible, add two small-signal diodes in series with

supply pins for overvoltage protection (Figure 1). Adding

diodes reduces the analog signal range to 1V above

V+ and 1V below V-, but low switch resistance and low

leakage characteristics are unaffected. Device operation

is unchanged, and the difference between V+ and V-

should not exceed +44V.

Figure 1. Overvoltage Protection Using External Blocking

Diodes

MAX306

NAME

FUNCTION

V+

Positive Supply Voltage Input

2, 3, 13

N.C.

No Connection. Not internally

connected.

4–11

NO16–NO9

Analog Inputs–bidirectional

GND

Ground

14–17

A3–A0

Address Inputs

Enable Inputs

19–26

NO1–NO8

Analog Inputs–bidirectional

V-

Negative Supply Voltage Input

COM

Output–bidirectional

MAX307

NAME

FUNCTION

V+

Positive Supply Voltage Input

COMB

Output B–bidirectional

3, 13, 14

N.C.

No Connection. Not internally

connected.

4–11

NO8B–NO1B

Analog Inputs–bidirectional

GND

Ground

15, 16, 17

A2, A1, A0

Address Inputs

Enable Input

19–26

NO1A–NO8A

Analog Inputs–bidirectional

V-

Negative Supply Voltage Input

COMA

Output A–bidirectional

COM

MAX306

V-

V+

MAX306/MAX307

Precision, 16-Channel/Dual 8-Channel,

High-Performance, CMOS Analog Multiplexers

www.maximintegrated.com

Maxim Integrated │ 6

Pin Description

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