ADM3061E/ADM3062E/ADM3063E/ADM3064E/ADM3065E/ADM3066E/ADM3067E/ADM3068E

Data Sheet

Rev. G | Page 4 of 27

GENERAL DESCRIPTION

The ADM3061E/ADM3062E/ADM3063E/ADM3064E/

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 ADM3062E/ADM3064E/ADM3066E/ADM3068E

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/ADM3064E/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/ADM3064E 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/ADM3064E/ADM3067E/ADM3068E

are full duplex RS-485 transceiver options.

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

saving packages, including 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/ADM3064E/

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 2 presents an overview of the ADM3061E/ADM3062E/

ADM3063E/ADM3064E/ADM3065E/ADM3066E/ADM3067E/

ADM3068E data rate capability across temperature, power supply,

and package options. Refer to the Ordering Guide section for

model numbering.

Table 1. Generic Description Table

Device No.

Duplex

Maximum Data Rate

Temperature Range

Packages Available

ADM3061E

Half

No

A grade: −40°C to +85°C

B grade: −40°C to +125°C

8-lead SOIC_N, 8-lead MSOP

ADM3062E

Half

Yes

10-lead MSOP, 10-lead LFCSP

ADM3063E

Full

No

14-lead SOIC_N

ADM3064E

Full

Yes

14-lead SOIC_N

ADM3065E

Half

50 Mbps

No

8-lead SOIC_N, 8-lead MSOP

ADM3066E

Half

50 Mbps

Yes

10-lead MSOP, 10-lead LFCSP

ADM3067E

Full

50 Mbps

No

14-lead SOIC_N

ADM3068E

Full

50 Mbps

Yes

14-lead SOIC_N

Table 2. Summary of the ADM3061E/ADM3062E/ADM3063E/ADM3064E/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

the ADM3061E/ADM3062E/ADM3063E/ADM3064E/ADM3065E/ADM3066E/ADM3067E/ADM3068E driver enable (DE) is enabled for 50% of the DI transmit time.