ADM2682E/ADM2687E

Preliminary Technical Data

Rev. PrE | Page 8 of 20

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

Figure 2. Pin Configuration

Table 10. Pin Function Description

Pin No.

Mnemonic

Description

1

Ground, Logic Side.

2

Logic Side Power Supply. It is recommended that a 0.1 µF and a 0.01 µF decoupling capacitor be fitted between

Pin 2 and Pin 1.

3

RxD

Receiver Output Data. This output is high when (A − B) ≥ -30 mV and low when (A − B) ≤ –200 mV.

The output is tristated when the receiver is disabled, that is, when RE

���isdrivenhigh.

4

RE

��� ReceiverEnableInput.Thisisanactive-lowinput.Drivingthisinputlowenablesthereceiver;drivingit

high disables the receiver.

5

DE

Driver Enable Input. Driving this input high enables the driver; driving it low disables the driver.

6

TxD

Driver Input. Data to be transmitted by the driver is applied to this input.

7

Logic Side Power Supply. It is recommended that a 0.1 µF and a 10 µF decoupling capacitor be fitted between

Pin 7 and Pin 8.

8

Ground, Logic Side.

9

Ground, Bus Side.

10

capacitor of 10 µF and a decoupling capacitor of 0.1 µF be fitted between Pin 10 and Pin 9.

11

Y

Driver Noninverting Output

12

Z

Driver Inverting Output

13

B

Receiver Inverting Input.

14

A

Receiver Noninverting Input.

15

0.1 µF and a 0.01 µF decoupling capacitor be fitted between Pin 15 and Pin 16.

16

Ground, Bus Side.

RxD

3

RE

4

16

15

A

14

B

13

DE

5

Z

12

TxD

6

Y

11

10

9

NOTES:

1. PIN 10 AND PIN 15 MUST BE

CONNECTED EXTERNALLY

ADM2682E

ADM2687E

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