ISO7420FEDR

Caratteristiche：

FEATURES

2• Signaling Rate > 50 Mbps

• For Devices with Suffix F, Output is Low in

Default Mode

• Low Power Consumption: Typical ICC per

Channel (3.3V Supplies):

– ISO7420: 1.4 mA at 1 Mbps, 2.5 mA at

25 Mbps

– ISO7421: 1.8 mA at 1 Mbps, 2.8 mA at

25 Mbps

• Low Propagation Delay: 7 ns Typical (E-Grade)

• Low Pulse Skew: 200 ps Typical (E-Grade)

• Wide TA Range Specified: –40°C to 125°C • 50 KV/μs Transient Immunity, Typical

• Isolation Barrier Life: > 25 Years

• Operates from 3V to 5.5V Supply Levels

• Narrow Body SOIC-8 Package

APPLICATIONS

• Opto-Coupler Replacement in:

– Industrial FieldBus

– ProfiBus

– ModBus

– DeviceNet™ Data Buses

– Servo Control Interface

– Motor Control

– Power Supplies

– Battery Packs

DESCRIPTION

ISO7420x and ISO7421x provide galvanic isolation up to 2500 VRMS for 1 minute per UL and 4242 VPK per VDE. These devices have two isolated channels. Each channel has a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuit from entering the local ground and interfering with or damaging sensitive circuitry. The suffix F indicates low-output option in fail-safe conditions (see Table 1). E-grade devices have no integrated noise filter and thus have fast propagation delays. CC-grade devices have integrated 10nsfilters for harsh environments where short noise pulses may be present at the device input pins.

These devices have TTL input thresholds and operate from 3V to 5.5V supplies. All inputs are 5V tolerant when supplied from a 3.3V supply

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