MAX3097E/MAX3098E
±15kV ESD-Protected, 32Mbps, 3V/5V,
Triple RS-422/RS-485 Receivers with Fault Detection
6 _______________________________________________________________________________________
PIN NAME FUNCTION
1 A Noninverting Receiver A Input
2 A Inverting Receiver A Input
3 B Noninverting Receiver B Input
4 B Inverting Receiver B Input
5 Z Noninverting Receiver Z Input
6 Z Inverting Receiver Z Input
7 GND Ground
8 DELAY
Programmable Delay Terminal. Connect a capacitor from DELAY to GND to set the
ALARMD output delay time. To obtain a minimum delay, leave DELAY unconnected. See
Capacitance vs. ALARMD Output Delay in the Typical Operating Characteristics.
9 ALARMD
Delayed Fault Output. This output is the logic OR of ALARMA, ALARMB, and ALARMZ.
Place a capacitor from the DELAY pin to GND to set the delay (see Setting Delay Time). A
high logic level indicates a fault condition on at least one receiver input pair. A low level on
this pin indicates no fault condition is present.
10 OUTZ
Z Receiver Output. If V
Z
- V
Z
≥ +200mV, OUTZ will be high. If V
Z
- V
Z
≤ -200mV, OUTZ will
be low. If Z or Z exceeds the receiver’s input common-mode voltage range, the ALARMZ
output will be high and OUTZ will be indeterminate.
11 ALARMZ
Z Fault Output. When ALARMZ is high, OUTZ is indeterminate. Tables 1 and 2 show all the
possible states for which an alarm is set.
12 OUTB
B Receiver Output. If V
B
- V
B
≥ +200mV, OUTB will be high. If V
B
- V
B
≤ -200mV, OUTB will
be low. If B or B exceeds the input receiver’s common-mode voltage range, the ALARMB
output will be high and OUTB will be indeterminate.
13 ALARMB
B Fault Output. When ALARMB is high, OUTB is indeterminate. Tables 1 and 2 show all the
possible states for which an alarm is set.
14 OUTA
A Receiver Output. If V
A
- V
A
≥ +200mV, OUTA will be high. If V
A
- V
A
≤ -200mV, OUTA will
be low. If A or A exceeds the receiver’s input common-mode voltage range, the ALARMA
output will be high and OUTA will be indeterminate.
15 ALARMA
A Fault Output. When ALARMA is high, OUTA is indeterminate. Tables 1 and 2 show all the
possible states for which an alarm is set.
16 V
CC
Power Supply
