±15kV ESD-Protected, 32Mbps, 3V/5V,

Triple RS-422/RS-485 Receivers with Fault Detection

8

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Note 1: ALARMD indicates fault for any receiver.

Note 2: Receiver output may oscillate with this differential input condition.

Note 3: See Applications Information for conditions leading to input range fault condition.

X = Don’t care

INPUTS

OUTPUTS

(DIFFERENTIAL

INPUT VOLTAGE)

COMMON-MODE

VOLTAGE

OUT_

ALARM_

ALARMD

t

≥ DELAY

(NOTE 1)

FAULT CONDITION

≥0.475V

1

0

0

Normal Operation

<0.475V and

≥0.275V

1

Indeterminate

Indeterminate

Indeterminate

<0.275V and

≥0.2V

1

1

1

Low Input Differential Voltage

≤0.2V and ≥-0.2V

Indeterminate

(Note 2)

1

1

Low Input Differential Voltage

≤-0.2V and >-0.275V

0

1

1

Low Input Differential Voltage

≤-0.275V and

>-0.475V

0

Indeterminate

Indeterminate

≤-0.475V

≤13.2V and ≥-10V

00

0

Indeterminate

X

<-10V or >+13.2V

Indeterminate

(Note 3)

11

Outside Common-Mode

Voltage Range

INPUTS

OUTPUTS

(DIFFERENTIAL

INPUT VOLTAGE)

COMMON-MODE

VOLTAGE

OUT_

ALARM_

ALARMD

t

≥ DELAY

(NOTE 1)

FAULT CONDITION

≥0.2V

1

0

0

Normal Operation

<0.2V and

≥0.12V

Indeterminate

Indeterminate

Indeterminate

Indeterminate

<0.12V and

≥ -0.12V

Indeterminate

(Note 2)

1

1

Low Input Differential Voltage

≤-0.12V and ≥ -0.2V

Indeterminate

Indeterminate

Indeterminate

Indeterminate

≤-0.2V

≤13.2V and ≥-

10V

0

0

0

Normal Operation

X

<-10V or

>+13.2V

Indeterminate

(Note 3)

11

Outside Common-Mode Voltage

Range

Table 1. MAX3097E Alarm Function Table (Each Receiver)

Table 2. MAX3098EA Alarm Function Table (Each Receiver)

Note 1: ALARMD indicates fault for any receiver.

Note 2: Receiver output may oscillate with this differential input condition.

Note 3: See Applications Information for conditions leading to input range fault condition.