MAX14852GWE+ datasheet(3/22 Pages) MAXIM

Part #	MAX14852GWE+

Description	2.75kVRMS Isolated 500kbps/25Mbps Full-Duplex

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Manufacturer	MAXIM [Maxim Integrated Products]

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DC Electrical Characteristics (continued)

(VDDA – VGNDA = 1.71V to 5.5V, VDDB – VGNDB = 3.0V to 5.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at

VDDA – VGNDA = 3.3V, VDDB – VGNDB = 3.3V, VGNDA = VGNDB, and TA = +25°C.) (Notes 2, 3)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Load Capacitance

Nominal value (Note 7)

1

10

µF

LOGIC INTERFACE (TXD, RXD, DE, RE, SBA)

Input High Voltage

VIH

RE, TXD, DE to

GNDA

2.25V ≤ VDDA ≤

5.5V

0.7 x

VDDA

V

1.71V ≤ VDDA ≤

1.89V

0.78 x

VDDA

Input Low Voltage

VIL

RE, TXD, DE to

GNDA

2.25V ≤ VDDA ≤

5.5V

0.8

V

1.71V ≤ VDDA ≤

1.89V

0.6

Input Hysteresis

VHYS

RE, TXD, DE to GNDA

220

mV

Input Capacitance

CIN

RE, TXD, DE, f = 1MHz

2

pF

Input Pullup Current

IPU

TXD

-10

-4.5

-1.5

µA

Input Pulldown Current

IPD

DE, RE

1.5

4.5

10

µA

SBA Pullup Resistance

RSBA

3

5

8

kΩ

Output Voltage High

VOH

RXD to GNDA, IOUT = -4mA

VDDA

-0.4

V

Output Voltage Low

VOL

RXD to GNDA, IOUT = 4mA

0.40

V

SBA to GNDA, IOUT = 4mA

0.45

Short-Circuit Output Pullup

Current

ISH_PU

0V≤VRXD≤VDDA, (VA - VB) > -10mV,

RE = low

-42

mA

Short-Circuit Output Pulldown

Current

ISH_PD

0V≤VRXD≤VDDA, (VA - VB) <

-200mV, RE = low

40

mA

0V≤VSBA≤VDDA, side B is powered

and working

60

Three-State Output Current

IOZ

0V≤VRXD≤VDDA, RE = high

-1

+1

µA

DRIVER

Differential Driver Output

|VOD|

RL=54Ω,TXD=highorlow,Figure1a

1.5

V

RL=100Ω,TXD=highorlow,Figure1a

2.0

-7V ≤ VCM ≤+12V, Figure 1b

1.5

5

Change in Magnitude of Differ-

ential Driver Output Voltage

ΔVOD

RL = 100Ωor54Ω,Figure1a(Note5)

0.2

V

Driver Common-Mode Output

Voltage

VOC

RL = 100Ωor54Ω,Figure1a(Note5)

VDDB/

2

3

V

Change in Magnitude of

Common-Mode Voltage

ΔVOC

RL = 100Ωor54Ω,Figure1a(Note5)

0.2

V

www.maximintegrated.com

Maxim Integrated │ 3

MAX14852/MAX14854

2.75kVRMS Isolated 500kbps/25Mbps Full-Duplex

RS-485/RS-422 Transceivers

with ±35kV ESD Protection

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