Product Summary

The ISO721D is a dual-channel digital isolator. To facilitate PCB layout, the channel is oriented in the same direction in opposite directions in the ISO721D. The ISO721D has a logic input and output buffer separated by TI’s silicon-dioxide (SiO2) isolation barrier, providing galvanic isolation of up to 4000 VPK. Used in conjunction with isolated power supplies, the ISO721D blocks high voltage, isolates grounds, and prevents noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry.

Parametrics

ISO721D absolute maximum ratings: (1)VCC Supply voltage, VCC1, VCC2: –0.5 V to 6 V; (2)VI Voltage at IN, OUT: –0.5 V to 6 V; (3)IO Output current: ±15 mA; (4)TJ Maximum junction temperature: 170℃.

Features

ISO721D features: (1)Low Channel-to-Channel Output Skew; 1 ns max; (2)Low Pulse-Width Distortion (PWD); 1 ns max; (3)Low Jitter Content; 1 ns Typ at 150 Mbps; (4)Typical 25-Year Life at Rated Voltage; (5)UL 1577, IEC 61010-1, IEC 60950-1 and CSA Approved; (6)50 kV/μs Typical Transient Immunity; (7)Operates with 2.8-V (C-Grade), 3.3-V or 5-V Supplies; (8)4 kV ESD Protection; (9)High Electromagnetic Immunity.

Diagrams

ISO721D block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
ISO721D
ISO721D
Texas Instruments
Isolator Interface IC 3.3V/5V High-Speed Digital
Data Sheet
0-1: $2.14
1-25: $1.96
25-100: $1.57
100-250: $1.36
ISO721DG4
ISO721DG4
Texas Instruments
Isolator Interface IC 3.3V/5V High-Speed Digital
Data Sheet
0-1: $2.51
1-25: $2.29
25-100: $1.57
100-250: $1.52
ISO721DUB
ISO721DUB
Texas Instruments
Isolator Interface IC Sgl 100Mbps Dig Iso
Data Sheet
0-1: $2.51
1-25: $2.09
25-100: $1.84
100-250: $1.60
ISO721DRG4
ISO721DRG4
Texas Instruments
Isolator Interface IC 3.3V/5V High-Speed Digital
Data Sheet
0-1860: $0.97
1860-2000: $0.94
2000-2500: $0.94
2500-5000: $0.90
ISO721DR
ISO721DR
Texas Instruments
Isolator Interface IC 3.3V/5V High-Speed Digital
Data Sheet
0-1860: $0.97
1860-2000: $0.94
2000-2500: $0.94
2500-5000: $0.90
ISO721DUBR
ISO721DUBR
Texas Instruments
Isolator Interface IC Sgl 100Mbps Dig Iso
Data Sheet
0-190: $1.61
190-250: $1.48
250-350: $1.48
350-500: $1.35