Detailed Description

The MAX4575/MAX4576/MAX4577 are dual SPST

CMOS analog switches with circuitry providing ±15kV

ESD protection on the NO and NC pins. The CMOS

switch construction provides rail-to-rail signal handling

while consuming virtually no power. Each of the two

switches is independently controlled by a TTL/CMOS-

level-compatible digital input.

Applications Information

Do not exceed the absolute maximum ratings because

stresses beyond the listed ratings may cause perma-

nent damage to the device.

Proper power-supply sequencing is recommended for

all CMOS devices. Always sequence V+ on first, fol-

lowed by the logic inputs, NO/NC, or COM.

Operating Considerations for

High-Voltage Supply

The MAX4575/MAX4576/MAX4577 are capable of

+12V single-supply operation with some precautions.

The absolute maximum rating for V+ is +13V (refer-

enced to GND). When operating near this region,

bypass V+ with a minimum 0.1µF capacitor to ground

as close to the IC as possible.

±15kV ESD Protection

The MAX4575/MAX4576/MAX4577 are ±15kV ESD pro-

tected (according to IEC 1000-4-2) at the NC/NO termi-

nals. To accomplish this, bidirectional SCRs are

included on-chip between these terminals. When the

voltages at these terminals go Beyond-the-Rail™, the

corresponding SCRs turns on in a few nanoseconds

±15kV ESD-Protected, Low-Voltage, Dual, SPST,

CMOS Analog Switches

_______________________________________________________________________________________

7

50%

0

LOGIC

INPUT

300

Ω

NO_/NC_

GND

(

)

SWITCH

INPUT

IN

0

COM

SWITCH

OUTPUT

SWITCH

OUTPUT

LOGIC

INPUT

V+

35pF

V+

MAX4575

MAX4576

MAX4577

V+

Figure 1. Switching Time

Figure 2. Off-Isolation/On-Channel Bandwidth

IN

SIGNAL

GENERATOR 0dBm

V+

10nF

ANALYZER

NO_/NC_

GND

COM

V+

MAX4575

MAX4576

MAX4577

Beyond-the-Rail is a trademark of Maxim Integrated Products.