ADM3061E/ADM3062E/ADM3063E/ADM3065E/ADM3066E/ADM3067E/ADM3068E

Data Sheet

Rev. F | Page 4 of 28

GENERAL DESCRIPTION

The ADM3061E/ADM3062E/ADM3063E/ADM3065E/

ADM3066E/ADM3067E/ADM3068E are 3.0 V to 5.5 V, IEC

electrostatic discharge (ESD) protected RS-485 transceivers,

allowing the devices to withstand ±12 kV contact discharges on

the transceiver bus pins without latch-up or damage. The

pin that allow a flexible digital interface capable of operating as

low as 1.62 V.

The ADM3065E/ADM3066E/ADM3067E/ADM3068E are

suitable for high speed, 50 Mbps, bidirectional data commu-

nication on multipoint bus transmission lines. The ADM3061E/

ADM3062E/ADM3063E/ADM3065E/ADM3066E/ADM3067E/

ADM3068E feature a 1/4 unit load input impedance that allows

up to 128 transceivers on a bus. The ADM3061E/ADM3062E/

ADM3063E models offer all of the same features as the

ADM3065E/ADM3066E/ADM3067E/ADM3068E models at a

low 500 kbps data rate that is suitable for operation over long

cable runs.

The ADM3061E/ADM3062E/ADM3065E/ADM3066E are half-

duplex RS-485 transceivers, fully compliant to the PROFIBUS®

4.5 V. The ADM3063E/ADM3067E/ADM3068E are full duplex

RS-485 transceiver options.

The RS-485 transceivers are available in a number of space-

saving packages, such as the 10-lead, 3 mm × 3 mm lead frame

chip-scale package (LFCSP), the 8-lead or 10-lead, 3 mm × 3 mm

mini small outline package (MSOP), and the 8-lead or 14-lead,

narrow body standard small outline packages (SOIC_N).

Models with operating temperature ranges of −40°C to +125°C

and −40°C to +85°C are available.

Excessive power dissipation caused by bus contention or by

output shorting is prevented by a thermal shutdown circuit. If a

significant temperature increase is detected in the internal driver

circuitry during fault conditions, this feature forces the driver

output into a high impedance state.

The ADM3061E/ADM3062E/ADM3063E/ADM3065E/

ADM3066E/ADM3067E/ADM3068E guarantee a logic high

receiver output when the receiver inputs are shorted, open, or

connected to a terminated transmission line with all drivers

disabled.

Table 1 presents an overview of the ADM3061E/ADM3062E/

ADM3063E/ADM3065E/ADM3066E/ADM3067E/ADM3068E

data rate capability across temperature, power supply, and package

options. Refer to the Ordering Guide for model numbering.

Table 1. Summary of the ADM3061E/ADM3062E/ADM3063E/ADM3065E/ADM3066E/ADM3067E/ADM3068E Operating

Conditions—Data Rate Capability Across Temperature, Power Supply, and Package

Maximum Temperature Package Description

50 Mbps

5.5

−40°C to +125°C

10-lead LFCSP

50 Mbps

5.5

−40°C to +105°C

8-lead SOIC_N, 8-lead MSOP, 10-lead MSOP, and 14-lead SOIC_N

50 Mbps

3.6

−40°C to +125°C

8-lead SOIC_N, 8-lead MSOP, 10-lead MSOP, and 14-lead SOIC_N

500 kbps

5.5

−40°C to +125°C

8-lead SOIC_N, 8-lead MSOP, 10-lead MSOP, 10-lead LFCSP, and

14-lead SOIC_N

1

The ADM3065E/ADM3066E/ADM3067E/ADM3068E data input (DI) is transmitting 50 Mbps (or 500 kbps for the ADM3061E/ADM3062E/ADM3063E) clock data, and the

ADM3061E/ADM3062E/ADM3063E/ADM3065E/ADM3066E/ADM3067E/ADM3068E driver enable (DE) is enabled for 50% of the DI transmit time