ADM2490E_VA datasheet(7/16 Pages) AD

Il numero della parte	ADM2490E_VA

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

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Produttore elettronici	AD [Analog Devices]

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ADM2490E

Rev. A | Page 7 of 16

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

VDD1 1

GND1 2

RxD 3

NC 4

VDD2

16

GND2

15

A

14

B

13

GND1 5

NC

12

TxD 6

Z

11

NC 7

Y

10

GND1 8

GND2

9

NC = NO CONNECT

ADM2490E

TOP VIEW

(Not to Scale)

Figure 2. Pin Configuration

Table 9. Pin Function Descriptions

Pin No.

Mnemonic

Description

1

VDD1

Power Supply (Logic Side). Decoupling capacitor to GND1 required; capacitor value should be between

0.01 μF and 0.1 μF.

2, 5, 8

GND1

Ground (Logic Side).

3

RxD

Receiver Output.

4, 7, 12

NC

No Connect. These pins must be left floating.

6

TxD

Transmit Data.

9, 15

GND2

Ground (Bus Side).

10

Y

Driver Noninverting Output.

11

Z

Driver Inverting Output.

13

B

Receiver Inverting Input.

14

A

Receiver Noninverting Input.

16

VDD2

Power Supply (Bus Side). Decoupling capacitor to GND2 required; capacitor value should be between

0.01 μF and 0.1 μF.

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