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DESCRIPTION (CONTINUED)

GND2

1

2

3

4

8

7

6

5

V

CC1

IN

V

CC1

GND1

V

CC2

OUT

GND2

EN

1

2

3

4

8

7

6

5

V

CC1

IN

V

CC1

GND1

V

CC2

OUT

GND2

ISO721, ISO721M

ISO722, ISO722M

SLLS629B – JANUARY 2006 – REVISED MAY 2006

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

The symmetry of the dielectric and capacitor within the integrated circuitry provides for close capacitive

matching, and allows fast transient voltage changes between the input and output grounds without corrupting the

Mbps (dc) to 100 Mbps for the ISO721/ISO722, and 0 Mbps to 150 Mbps with the ISO721M/ISO722M.

These devices require two supply voltages of 3.3-V, 5-V, or any combination. All inputs are 5-V tolerant when

supplied from a 3.3-V supply and all outputs are 4-mA CMOS.

The ISO722 and ISO722M devices includes an active-low output enable that when driven to a high-logic level,

places the output in a high-impedance state, and turns off internal bias circuitry to conserve power.

Both the ISO721 and ISO722 have TTL input thresholds and a noise-filter at the input that prevents transient

pulses of up to 2 ns in duration from being passed to the output of the device.

additional propagation delay. These features of the ISO721M also provide for reduced jitter operation.

The ISO721, ISO721M, ISO722, and ISO722M are characterized for operation over the ambient temperature

range of –40°C to 125°C.

(1) The signaling rate of a line is the number of voltage transitions that are made per second expressed in

the units bps (bits per second).

PACKAGE PIN ASSIGMENTS

PACKAGE PIN ASSIGMENTS

ISO721D, ISO721MD

ISO722D, ISO722MD

(TOP VIEW)

(TOP VIEW)

AVAILABLE OPTIONS

OUTPUT

INPUT

NOISE

MARKED

PRODUCT

ORDERING NUMBER

GREEN

ENABLED

THRESHOLDS

FILTER

AS

ISO721D (rail)

ISO721

NO

TTL

YES

SOIC-8

ISO721

ISO721DR (reel)

ISO721MD (rail)

ISO721M

NO

CMOS

NO

SOIC-8

IS721M

ISO721MDR (reel)

Pb Free

Sb/Br Free

ISO722D (rail)

ISO722

YES

TTL

YES

SOIC-8

ISO722

ISO722DR (reel)

ISO722MD (rail)

ISO722M

YES

CMOS

NO

SOIC-8

IS722M

ISO722MDR (reel)

(1)

For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

Web site at www.ti.com.

REGULATORY INFORMATION

VDE

CSA

UL

Approved under CSA Component

Recognized under 1577

Certified according to IEC 60747-5-2

Acceptance Notice: CA-5A

File Number: 40014131

File Number: 1698195

File Number: E181974

(1)

Production tested

≥ 3000 V

2

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