MAX14852 Datasheet, PDF (3/22 Pages) Maxim Integrated Products – 2.75kVRMS Isolated 500kbps/25Mbps Full-Duplex

MAX14852/MAX14854
2.75kV_RMS Isolated 500kbps/25Mbps Full-Duplex
RS-485/RS-422 Transceivers
with ±35kV ESD Protection
DC Electrical Characteristics (continued)
(V_DDA – V_GNDA = 1.71V to 5.5V, V_DDB – V_GNDB = 3.0V to 5.5V, T_A = T_MIN to T_MAX, unless otherwise noted. Typical values are at
V_DDA – V_GNDA = 3.3V, V_DDB – V_GNDB = 3.3V, V_GNDA = V_GNDB, and T_A = +25°C.) (Notes 2, 3)
PARAMETER
Load Capacitance
SYMBOL
CONDITIONS
Nominal value (Note 7)
MIN
TYP
1
LOGIC INTERFACE (TXD, RXD, DE, RE, SBA)
Input High Voltage
2.25V ≤ VDDA ≤
VIH
RE, TXD, DE to
GNDA
5.5V
1.71V ≤ VDDA ≤
1.89V
Input Low Voltage
2.25V ≤ VDDA ≤
VIL
RE, TXD, DE to
GNDA
5.5V
1.71V ≤ VDDA ≤
1.89V
Input Hysteresis
VHYS RE, TXD, DE to GNDA
0.7 x
VDDA
0.78 x
VDDA
220
Input Capacitance
Input Pullup Current
Input Pulldown Current
SBA Pullup Resistance
Output Voltage High
CIN
IPU
IPD
RSBA
VOH
RE, TXD, DE, f = 1MHz
TXD
DE, RE
RXD to GNDA, IOUT = -4mA
2
-10
-4.5
1.5
4.5
3
5
VDDA
-0.4
Output Voltage Low
VOL
RXD to GNDA, IOUT = 4mA
SBA to GNDA, IOUT = 4mA
Short-Circuit Output Pullup
Current
ISH_PU
0V ≤ V_RXD ≤ V_DDA, (VA - VB) > -10mV,
RE = low
-42
Short-Circuit Output Pulldown
Current
ISH_PD
0V ≤ V_RXD ≤ V_DDA, (VA - VB) <
-200mV, RE = low
0V ≤ V_SBA ≤ V_DDA, side B is powered
and working
MAX
10
0.8
0.6
-1.5
10
8
0.40
0.45
40
60
UNITS
µF
V
V
mV
pF
µA
µA
kΩ
V
V
mA
mA
Three-State Output Current
IOZ
0V ≤ V_RXD ≤ V_DDA, RE = high
-1
DRIVER
+1
µA
RL = 54Ω, TXD = high or low, Figure 1a
1.5
Differential Driver Output
|VOD| RL = 100Ω, TXD = high or low, Figure 1a 2.0
V
-7V ≤ VCM ≤ +12V, Figure 1b
1.5
5
Change in Magnitude of Differ-
ential Driver Output Voltage
ΔV_OD RL = 100Ω or 54Ω, Figure 1a (Note 5)
0.2
V
Driver Common-Mode Output
Voltage
VOC RL = 100Ω or 54Ω, Figure 1a (Note 5)
VDDB/
2
3
V
Change in Magnitude of
Common-Mode Voltage
ΔV_OC RL = 100Ω or 54Ω, Figure 1a (Note 5)
0.2
V
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