ADM2490EBRWZ-REEL71 datasheet(3/16 Pages) AD

Teilenummer	ADM2490EBRWZ-REEL71

Bauteilbeschribung	High Speed, ESD-Protected, Full-Duplex, iCoupler, Isolated RS-485 Transceiver

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Hersteller	AD [Analog Devices]

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ADM2490E

Rev. 0 | Page 3 of 16

SPECIFICATIONS

All voltages are relative to their respective ground; 2.7 ≤ VDD1 ≤ 5.5 V, 4.5 V ≤ VDD2 ≤ 5.5 V. All minimum/maximum specifications apply

over the entire recommended operation range, unless otherwise noted. All typical specifications are at TA = 25°C, VDD1 = VDD2 = 5.0 V,

unless otherwise noted.

Table 1.

Parameter

Symbol

Min

Typ

Max

Unit

Test Conditions

SUPPLY CURRENT

Power-Supply Current, Logic Side

TxD/RxD Data Rate < 2 Mbps

IDD1

3.0

mA

2.7 V ≤ VDD1 ≤ 5.5 V, unloaded

TxD/RxD Data Rate = 16 Mbps

IDD1

6

mA

100 Ω load between Y and Z

Power-Supply Current, Bus Side

TxD/RxD Data Rate < 2 Mbps

IDD2

4.0

mA

2.7 V ≤ VDD1 ≤ 5.5 V, unloaded

TxD/RxD Data Rate = 16 Mbps

IDD2

60

mA

100 Ω load between Y and Z

DRIVER

Differential Outputs

Differential Output Voltage, Loaded

|VOD2|

2.0

5.0

V

RL = 50 Ω (RS-422),

see Figure 3

1.5

5.0

V

RL = 27 Ω (RS-485),

see Figure 3

|VOD4|

1.5

5.0

V

−7 V ≤ VTEST1 ≤ +12 V,

see Figure 4

∆|VOD| for Complementary Output States

∆|VOD|

0.2

V

RL = 54 Ω or 100 Ω,

see Figure 3

Common-Mode Output Voltage

VOC

3.0

V

RL = 54 Ω or 100 Ω,

see Figure 3

∆|VOC| for Complementary Output States

∆|VOC|

0.2

V

RL = 54 Ω or 100 Ω,

see Figure 3

Short-Circuit Output Current

IOS

200

mA

Logic Inputs

Input Threshold Low

VILTxD

0.25 × VDD1

V

Input Threshold High

VIHTRxD

0.7 × VDD1

V

TxD Input Current

ITxD

−10

+0.01

+10

μA

RECEIVER

Differential Inputs

Differential Input Threshold Voltage

VTH

−0.2

+0.2

V

Input Voltage Hysteresis

VHYS

70

mV

VOC = 0 V

Input Current (A, B)

II

1.0

mA

VOC = 12 V

−0.8

mA

VOC = −7 V

Line Input Resistance

RIN

12

kΩ

Logic Outputs

Output Voltage Low

VOLRxD

0.2

0.4

V

IORxD = 1.5 mA, VA − VB = −0.2 V

Output Voltage High

VOHRxD

VDD1 − 0.3

VDD1 − 0.2

V

IORxD = −1.5 mA, VA − VB = 0.2 V

Short Circuit Current

100

mA

COMMON-MODE TRANSIENT IMMUNITY1

25

kV/μs

VCM = 1 kV, transient

magnitude = 800 V

1 CM is the maximum common-mode voltage slew rate that can be sustained while maintaining specification-compliant operation. VCM is the common-mode potential

difference between the logic and bus sides. The transient magnitude is the range over which the common-mode is slewed. The common-mode voltage slew rates

apply to both rising and falling common-mode voltage edges.

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