Precision, Quad, SPST Analog Switches

6

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____________________________Typical Operating Characteristics (continued)

CHARGE INJECTION vs.

VCOM VOLTAGE

-20

0

20

40

-14

-10

0

10

14

V+ = 15V

V- = -15V

CL = 1nF

CHARGE INJECTION vs.

VCOM VOLTAGE

-10

0

10

0

5

10

12

V+ = 12V

V- = 0V

CL = 1nF

___________Applications Information

Operation with Supply Voltages

Using supply voltages other than ±15V is reduces the

analog signal range. The MAX361/MAX362 switches

operate with bipolar supplies of ±4.5V to ±20V. Typical

operating characteristic graphs show typical on resis-

tance for ±15V, ±10V, and ±5V supplies. Switching

times increase by a factor of two or more for ±5V oper-

ation. The MAX361/MAX362 can also operate from

+10V to +30V unipolar supplies. Both parts can also

be powered from unbalanced supplies such as +24V

and -5V. Connect V- to 0V when operating with a sin-

gle supply.

Proper power-supply sequencing is recommended for

all CMOS devices. Do not exceed the absolute maxi-

mum ratings, because stresses beyond the listed rat-

ings may cause permanent damage to the devices.

Always sequence V+ on first, followed by V-, and logic

inputs. If power-supply sequencing is not possible,

add two small signal diodes in series with the supply

pins for overvoltage protection (Figure 6). Adding the

diodes reduces the analog signal range to 1V below

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

leakage characteristics are unaffected. Device opera-

tion is unchanged, and the difference from V+ to V-

should not exceed +44V.

PIN

NAME

MAX361

MAX362

FUNCTION

1, 16, 9, 8

IN1-IN4

IN1-IN4

Logic-level input

2, 15, 10, 7

COM1-COM4

COM1-COM4

Analog switch common terminal

3, 14, 11, 6

NC1-NC4

NO1-NO4

NC (normally closed, MAX361)

NO (normally open, MAX362)

Analog switch terminal

4

V-

V-

Negative supply voltage input

5

GND

GND

Ground

12

N.C.

N.C.

Not internally connected

13

V+

V+

Positive supply voltage input—connected to substrate.

______________________________________________________________Pin Description