±15kV ESD-Protected, 32Mbps, 3V/5V,
Triple RS-422/RS-485 Receivers with Fault Detection
Typical Operating Characteristics (continued)
(Typical values are at VCC = +5V and TA = +25°C.)
COMMON-MODE VOLTAGE FAULT
(HIGH SIDE)
COMMON-MODE VOLTAGE FAULT
(LOW SIDE)
MAX3097E
LOW DIFFERENTIAL INPUT FAULT
CH 1
GND
CH 1
GND CH 1
GND
CH 2
CH 3
2ms/div
CH1: VA + AC(60Hz), 10V/div
CH2: VOUTA, 5V/div
CH3: VALARMA, 5V/div
VCC = 3V
GND
CH 2
GND
CH 3
2ms/div
CH1: VA + AC(60Hz), 10V/div
CH2: VOUTA, 5V/div
CH3: VALARMA, 5V/div
VCC = 3V
GND CH 2
GND
GND
100µs/div
CH1: VA, 200mV/div
CH2: VALARMA, 5V/div
VA = GND
SLEW-RATE FAULT
CH 1
CH 2
CH1: VA, 5V/div
CH2: VALARMA, 5V/div
SLEW RATE = 0.05V/µs
VA = GND
FAULT-DETECTION RECEIVER DIFFERENTIAL
THRESHOLD VOLTAGE SHIFT vs.
COMMON-MODE VOLTAGE
12
GND
8
MAX3097E
4
0
GND
-4
MAX3098E
-8
-10
-5
0
5
10
COMMON-MODE VOLTAGE (V)
_______________________________________________________________________________________ 5