ADM1491EBRMZ datasheet(3/16 Pages) AD

Numer części	ADM1491EBRMZ

Szczegółowy opis	16 Mbps, ESD Protected, Full-Duplex RS-485 Transceivers

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Producent	AD [Analog Devices]

Strona internetowa	http://www.analog.com

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ADM1490E/ADM1491E

Rev. B | Page 3 of 16

SPECIFICATIONS

4.75 V ≤ VCC ≤ 5.25 V; all minimum/maximum specifications apply over the entire recommended operation range, unless otherwise

noted. All typical specifications are at TA = 25°C, VCC = 5.0 V, unless otherwise noted.

Table 1.

Parameter

Symbol

Min

Typ

Max

Unit

Test Conditions

SUPPLY CURRENT

Outputs Enabled

ICC1

1.2

2.0

mA

Outputs unloaded, digital inputs = VCC or GND

Outputs Disabled

ICC2

0.8

1.5

mA

Outputs unloaded, digital inputs = VCC or GND

DRIVER

Differential Outputs

Differential Output Voltage, Loaded

|VOD2|

2.0

5.0

V

RL = 100 Ω (RS-422), see Figure 21

1.5

5.0

V

RL = 54 Ω (RS-485), see Figure 21

|VOD3|

1.5

5.0

V

−7 V ≤ VTEST ≤ +12 V, see Figure 22

∆|VOD| for Complementary Output States

∆|VOD2|

0.2

V

RL = 54 Ω or 100 Ω, see Figure 21

Common-Mode Output Voltage

VOC

3.0

V

RL = 54 Ω or 100 Ω, see Figure 21

∆|VOC| for Complementary Output States

∆|VOC|

0.2

V

RL = 54 Ω or 100 Ω, see Figure 21

Output Leakage Current (Y, Z)

IO

100

μA

DE = 0 V, VDD = 0 V or 5 V, VIN = 12 V

IO

−100

μA

DE = 0 V, VDD = 0 V or 5 V, VIN = −7 V

Output Short-Circuit Current

IOS

250

mA

−7 V < VOUT < +12 V

Logic Inputs DE, RE, DI

Input Low Voltage

VIL

0.8

V

DE, RE, DI

Input High Voltage

VIH

2.0

V

DE, RE, DI

Input Current

II

−1

+1

μA

DE, RE, DI

RECEIVER

Differential Inputs

Differential Input Threshold Voltage

VTH

−0.2

+0.2

V

−7 V < VCM < +12 V

Input Voltage Hysteresis

VHYS

30

mV

VCM = 0 V

Input Current (A, B)

II

1.0

mA

VCM = 12 V

−0.8

mA

VCM = −7 V

Line Input Resistance

RIN

12

30

kΩ

−7 V ≤ VCM ≤ +12 V

Logic Outputs

Output Voltage Low

VOL

0.4

V

IOUT = +4.0 mA, VA − VB = −0.2 V

Output Voltage High

VOH

4.0

V

IOUT = −4.0 mA, VA − VB = +0.2 V

Short-Circuit Current

85

mA

Three-State Output Leakage Current

IOZR

±1

μA

VCC = 5.25 V, 0.4 V < VOUT < 2.4 V

Podobny numer części - ADM1491EBRMZ

Producent	Numer części	Arkusz danych	Szczegółowy opis
Analog Devices	ADM1491EBRMZ	304Kb / 16P	16 Mbps, ESD Protected, Full-Duplex RS-485 Transceivers REV. 0
	ADM1491EBRMZ	346Kb / 16P	16 Mbps, ESD Protected, Full-Duplex RS-485 Transceivers Rev. D
	ADM1491EBRMZ-REEL7	304Kb / 16P	16 Mbps, ESD Protected, Full-Duplex RS-485 Transceivers REV. 0
	ADM1491EBRMZ-REEL7	346Kb / 16P	16 Mbps, ESD Protected, Full-Duplex RS-485 Transceivers Rev. D

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Podobny opis - ADM1491EBRMZ

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Analog Devices	ADM1490E	346Kb / 16P	16 Mbps, ESD Protected, Full-Duplex RS-485 Transceivers Rev. D
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