Product Summary

The ISO7221ADR is a dual-channel digital isolator. To facilitate PCB layout, the channels are oriented in the same direction in the device. The ISO7221ADR has a logic input and output buffer separated by TI’s silicon-dioxide (SiO2) isolation barrier, providing galvanic isolation of up to 4000 V. Used in conjunction with isolated power supplies, the device block high voltage, isolate grounds, and prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. The applications of the ISO7221ADR include industrial fieldbus, computer peripheral interface, servo control interface and data acquisition.

Parametrics

ISO7221ADR absolute maximum ratings: (1)VCC Supply voltage, VCC1, VCC2: -0.5 to 6V; (2)VI Voltage at IN, OUT: -0.5 to 6V; (3)IO Output current: ±15mA; (4)Electrostatic kV ESD discharge, Human Body Model, Electrostatic ischarge JEDEC Standard 22, Test Method A114-C.01: ±4kV; (5)Electrostatic kV ESD discharge, Field-Induced-Charged Device Model, JEDEC Standard 22, Test Method C101: ±1kV; (6)Electrostatic kV ESD discharge, Machine Model, ANSI/ESDS5.2-1996: ±200V; (7)Maximum junction temperature, TJ: 170℃.

Features

ISO7221ADR features: (1)1, 5, 25, and 150-Mbps Signaling Rate Options ; (2)Typical 25-Year Life at Rated Voltage; (3)4000-Vpeak Isolation, 560 V peak VIORM; (4)Operates with 3.3-V or 5-V Supplies; (5)4 kV ESD Protection; (6)High Electromagnetic Immunity; (7)-40℃ to 125℃ Operating Range.

Diagrams

ISO7221ADR function diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
ISO7221ADR
ISO7221ADR

Texas Instruments

Isolator Interface IC Dual CH 1/1 1Mbps Dig Iso

Data Sheet

0-1: $1.55
1-25: $1.21
25-100: $1.10
100-250: $0.98
ISO7221ADRG4
ISO7221ADRG4

Texas Instruments

Isolator Interface IC Dual Ch 1/1 1Mbps Dig Iso

Data Sheet

0-1970: $0.65
1970-2500: $0.65
2500-10000: $0.63