The ISO7220 and ISO7221 are dual-channel digital isolators

ISO7221B

Manufacturer Part NumberISO7221B
DescriptionThe ISO7220 and ISO7221 are dual-channel digital isolators
ManufacturerTexas Instruments
ISO7221B datasheet
 


Specifications of ISO7221B

Number Of Channels2Channel Configuration2/0
Insulation Rating(vrms)2500Supply Voltage(s)(v)3.3, 5
Datarate(mbps)5Input Noise FilterYes
Ttl/cmos Input ThresholdTTLFootprintADuM1201
Operating Temperature Range(c)-40 to 125Pin/package8SOIC
Thermal ShutdownNo  
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Check for Samples: ISO7220A, ISO7220B, ISO7220C, ISO7220M, ISO7221A, ISO7221B, ISO7221C,
FEATURES
1
1, 5, 25, and 150-Mbps Signaling Rate Options
2
– Low Channel-to-Channel Output Skew;
1 ns max
– Low Pulse-Width Distortion (PWD);
1 ns max
– Low Jitter Content; 1 ns Typ at 150 Mbps
Typical 25-Year Life at Rated Voltage
(see app. note
SLLA197
and
4000-V
V
, 560 V
V
PK
IOTM
PK
IORM
60747-5-2 (VDE 0884, Rev2)
UL 1577, IEC 61010-1, IEC 60950-1 and CSA
Approved
50 kV/μs Typical Transient Immunity
Operates with 2.8-V (C-Grade), 3.3-V or 5-V
Supplies
DESCRIPTION
The ISO7220 and ISO7221 are dual-channel digital isolators. To facilitate PCB layout, the channels are oriented
in the same direction in the ISO7220 and in opposite directions in the ISO7221. These devices have a logic input
and output buffer separated by TI’s silicon-dioxide (SiO
4000 V
. Used in conjunction with isolated power supplies, these devices block high voltage, isolate grounds,
PK
and prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or
damaging sensitive circuitry.
A binary input signal is conditioned, translated to a balanced signal, then differentiated by the capacitive isolation
barrier. Across the isolation barrier, a differential comparator receives the logic transition information, then sets or
resets a flip-flop and the output circuit accordingly. A periodic update pulse is sent across the barrier to ensure
the proper dc level of the output. If this dc-refresh pulse is not received every 4 μs, the input is assumed to be
unpowered or not being actively driven, and the failsafe circuit drives the output to a logic high state.
The small capacitance and resulting time constant provide fast operation with signaling rates available from 0
Mbps (dc) to 150 Mbps.
(1)
The A-, B- and C-option devices have TTL input thresholds and a noise filter at the
input that prevents transient pulses from being passed to the output of the device. The M-option devices have
CMOS V
/2 input thresholds and do not have the input noise-filter and the additional propagation delay.
CC
ISO7220xD
V
1
CC1
INA
2
INB
3
GND1
4
(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).
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
DeviceNet is a trademark of Open DeviceNet Vendors Association.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
ISO7220A, ISO7220B, ISO7220C, ISO7220M
ISO7221A, ISO7221B, ISO7221C, ISO7221M
DUAL DIGITAL ISOLATORS
4 kV ESD Protection
High Electromagnetic Immunity
–40°C to 125°C Operating Range
APPLICATIONS
Industrial Fieldbus
– Modbus
Figure
20)
– Profibus™
per IEC
– DeviceNet™ Data Buses
Computer Peripheral Interface
Servo Control Interface
Data Acquisition
) isolation barrier, providing galvanic isolation of up to
2
V
V
8
CC1
CC2
OUTA
7
OUTA
INB
6
OUTB
GND1
GND2
5
SLLS755L – JULY 2006 – REVISED JANUARY 2012
ISO7221M
ISO7221xD
V
1
8
CC2
2
7
INA
OUTB
3
6
GND2
4
5
Copyright © 2006–2012, Texas Instruments Incorporated

ISO7221B Summary of contents

  • Page 1

    ... Check for Samples: ISO7220A, ISO7220B, ISO7220C, ISO7220M, ISO7221A, ISO7221B, ISO7221C, FEATURES 1 • 25, and 150-Mbps Signaling Rate Options 2 – Low Channel-to-Channel Output Skew max – Low Pulse-Width Distortion (PWD max – Low Jitter Content Typ at 150 Mbps • ...

  • Page 2

    ... ISO7220A, ISO7220B, ISO7220C, ISO7220M ISO7221A, ISO7221B, ISO7221C, ISO7221M SLLS755L – JULY 2006 – REVISED JANUARY 2012 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. ...

  • Page 3

    ... CC1 CC2 (2) Typical signaling rate and Input pulse width are measured at ideal conditions at 25°C. Copyright © 2006–2012, Texas Instruments Incorporated ISO7220A, ISO7220B, ISO7220C, ISO7220M ISO7221A, ISO7221B, ISO7221C, ISO7221M REGULATORY INFORMATION CSA Approved under CSA Component Acceptance Notice 5A Evaluated to CSA 60950-1-07 and IEC 60950-1 (2nd Ed.) for products with working voltages ≤ ...

  • Page 4

    ... ISO7220A, ISO7220B, ISO7220C, ISO7220M ISO7221A, ISO7221B, ISO7221C, ISO7221M SLLS755L – JULY 2006 – REVISED JANUARY 2012 ELECTRICAL CHARACTERISTICS: V over recommended operating conditions (unless otherwise noted) PARAMETER SUPPLY CURRENT ISO7220x ISO7221 ISO7220A, ISO7220B I CC1 ISO7221A, ISO7221B ISO7220C, ISO7220M ISO7221C, ISO7221M ISO7220x ISO7221x ...

  • Page 5

    ... V to 5.5 V. CC1 CC2 For the 3.3-V operation specified from 3.6 V. CC1 CC2 Copyright © 2006–2012, Texas Instruments Incorporated ISO7220A, ISO7220B, ISO7220C, ISO7220M ISO7221A, ISO7221B, ISO7221C, ISO7221M and V at 5-V OPERATION (continued) CC1 CC2 TEST CONDITIONS ISO722xA ISO722xB ISO722xC/M See ...

  • Page 6

    ... ISO7220A, ISO7220B, ISO7220C, ISO7220M ISO7221A, ISO7221B, ISO7221C, ISO7221M SLLS755L – JULY 2006 – REVISED JANUARY 2012 SWITCHING CHARACTERISTICS: V over recommended operating conditions (unless otherwise noted) PARAMETER t , pLH Propagation delay t pHL (1) PWD Pulse-width distortion |t – pHL pLH t , pLH Propagation delay t pHL (1) PWD Pulse-width distortion |t – ...

  • Page 7

    ... V is specified from 4 5.5 V. CC1 CC2 For the 3.3-V operation specified from 3.6 V. CC1 CC2 Copyright © 2006–2012, Texas Instruments Incorporated ISO7220A, ISO7220B, ISO7220C, ISO7220M ISO7221A, ISO7221B, ISO7221C, ISO7221M ( OPERATION CC1 CC2 TEST CONDITIONS Quiescent ...

  • Page 8

    ... ISO7220A, ISO7220B, ISO7220C, ISO7220M ISO7221A, ISO7221B, ISO7221C, ISO7221M SLLS755L – JULY 2006 – REVISED JANUARY 2012 SWITCHING CHARACTERISTICS: V over recommended operating conditions (unless otherwise noted) PARAMETER t , pLH Propagation delay t pHL (1) PWD Pulse-width distortion |t – pHL pLH t , pLH Propagation delay t pHL (1) PWD Pulse-width distortion |t – ...

  • Page 9

    ... Input capacitance to ground I CMTI Common-mode transient immunity (1) For the 3.3-V operation specified from 3.6 V. CC1 CC2 Copyright © 2006–2012, Texas Instruments Incorporated ISO7220A, ISO7220B, ISO7220C, ISO7220M ISO7221A, ISO7221B, ISO7221C, ISO7221M (1) and V at 3.3 V OPERATION CC1 CC2 TEST CONDITIONS Quiescent ...

  • Page 10

    ... ISO7220A, ISO7220B, ISO7220C, ISO7220M ISO7221A, ISO7221B, ISO7221C, ISO7221M SLLS755L – JULY 2006 – REVISED JANUARY 2012 SWITCHING CHARACTERISTICS V and V at 3.3 V operation, over recommended operating conditions (unless otherwise noted) CC1 CC2 PARAMETER t , pLH Propagation delay t pHL (1) PWD Pulse-width distortion |t – pHL pLH ...

  • Page 11

    ... ISO722xC with production screening starting in January 2012. The first two digits of the Lot Trace Code (YMSLLLLG4) written on top of each device can be used to identify year and month of production respectively. Copyright © 2006–2012, Texas Instruments Incorporated ISO7220A, ISO7220B, ISO7220C, ISO7220M ISO7221A, ISO7221B, ISO7221C, ISO7221M and V at 2.8 V (ISO722xC-only) CC1 ...

  • Page 12

    ... ISO7220A, ISO7220B, ISO7220C, ISO7220M ISO7221A, ISO7221B, ISO7221C, ISO7221M SLLS755L – JULY 2006 – REVISED JANUARY 2012 SWITCHING CHARACTERISTICS V and V at 2.8 V operation, over recommended operating conditions (unless otherwise noted) CC1 CC2 PARAMETER t , pLH Propagation delay t pHL (1) PWD Pulse-width distortion |t – pHL pLH ...

  • Page 13

    ... DUT Tektronix IN HFS9009 PATTERN GENERATOR NOTE: PRBS bit pattern run length is 2 Figure 4. Peak-to-Peak Eye-Pattern Jitter Test Circuit and Voltage Waveform Copyright © 2006–2012, Texas Instruments Incorporated ISO7220A, ISO7220B, ISO7220C, ISO7220M ISO7221A, ISO7221B, ISO7221C, ISO7221M V I OUT ...

  • Page 14

    ... ISO7220A, ISO7220B, ISO7220C, ISO7220M ISO7221A, ISO7221B, ISO7221C, ISO7221M SLLS755L – JULY 2006 – REVISED JANUARY 2012 IEC PACKAGE CHARACTERISTICS PARAMETER L(I01) Minimum air gap (Clearance) L(I02) Minimum external tracking (Creepage) CTI Tracking resistance (Comparative Tracking Index) Minimum Internal Gap (Internal Clearance) ...

  • Page 15

    ... Test Board for Leaded Surface Mount Packages and is conservative. The power is the recommended maximum input voltage times the current. The junction temperature is then the ambient temperature plus the power times the junction-to-air thermal resistance. Copyright © 2006–2012, Texas Instruments Incorporated ISO7220A, ISO7220B, ISO7220C, ISO7220M ISO7221A, ISO7221B, ISO7221C, ISO7221M Input ...

  • Page 16

    ... ISO7220A, ISO7220B, ISO7220C, ISO7220M ISO7221A, ISO7221B, ISO7221C, ISO7221M SLLS755L – JULY 2006 – REVISED JANUARY 2012 SOIC-8 PACKAGE THERMAL CHARACTERISTICS over recommended operating conditions (unless otherwise noted) PARAMETER θ Junction-to-air JA θ Junction-to-Board Thermal Resistance JB θ Junction-to-Case Thermal Resistance ...

  • Page 17

    ... V CC 390 t & t pLH pHL 380 370 360 350 -40 - Temperature - °C Figure 8. Copyright © 2006–2012, Texas Instruments Incorporated ISO7220A, ISO7220B, ISO7220C, ISO7220M ISO7221A, ISO7221B, ISO7221C, ISO7221M 25° Load ...

  • Page 18

    ... ISO7220A, ISO7220B, ISO7220C, ISO7220M ISO7221A, ISO7221B, ISO7221C, ISO7221M SLLS755L – JULY 2006 – REVISED JANUARY 2012 TYPICAL CHARACTERISTIC CURVES (continued) PROPAGATION DELAY vs FREE-AIR TEMPERATURE, ISO722xC 3 & t pLH pHL & t pLH pHL -40 - Temperature - °C Figure 10 ...

  • Page 19

    ... LOW-LEVEL OUTPUT VOLTAGE Load T = 25° OUT Figure 16. Copyright © 2006–2012, Texas Instruments Incorporated ISO7220A, ISO7220B, ISO7220C, ISO7220M ISO7221A, ISO7221B, ISO7221C, ISO7221M -80 -70 -60 V Rising CC -50 -40 -30 V Falling CC V -20 - 110 125 ...

  • Page 20

    ... ISO7220A, ISO7220B, ISO7220C, ISO7220M ISO7221A, ISO7221B, ISO7221C, ISO7221M SLLS755L – JULY 2006 – REVISED JANUARY 2012 Typical Applications 0 INPUT INPUT GND 1 Figure 18. Typical ISO7220 Application Circuit 0 OUTPUT INPUT GND 1 Figure 19. Typical ISO7221 Application Circuit 100 120 Figure 20 ...

  • Page 21

    ... These sparks often cause carbonization on insulation material and lead to a carbon track between points of different potential. This process is known as tracking. Copyright © 2006–2012, Texas Instruments Incorporated ISO7220A, ISO7220B, ISO7220C, ISO7220M ISO7221A, ISO7221B, ISO7221C, ISO7221M SLLS755L – JULY 2006 – REVISED JANUARY 2012 ISOLATION GLOSSARY 21 ...

  • Page 22

    ... ISO7220A, ISO7220B, ISO7220C, ISO7220M ISO7221A, ISO7221B, ISO7221C, ISO7221M SLLS755L – JULY 2006 – REVISED JANUARY 2012 Insulation: Operational insulation — Insulation needed for the correct operation of the equipment. Basic insulation — Insulation to provide basic protection against electric shock. Supplementary insulation — Independent insulation applied in addition to basic insulation in order to ensure protection against electric shock in the event of a failure of the basic insulation. Double insulation — ...

  • Page 23

    ... Added Part Numbers ISO7220B and ISO7221B to the data sheet ...................................................................................... • Added 5-Mbps Signaling rate to the FEATURES list ............................................................................................................ • Added Part Numbers ISO720B and ISO7221B to the AVAILABLE OPTIONS table ........................................................... • Added Part Numbers ISO720B and ISO7221B to the ELECTRICAL CHARACTERISTICS: V table ...................................................................................................................................................................................... • ...

  • Page 24

    ... ISO7220A, ISO7220B, ISO7220C, ISO7220M ISO7221A, ISO7221B, ISO7221C, ISO7221M SLLS755L – JULY 2006 – REVISED JANUARY 2012 Changes from Revision G (March 2008) to Revision H • Added Note: (1) to the RECOMMENDED OPERATING CONDITIONS table ..................................................................... • Added Note: (1) to the ELECTRICAL CHARACTERISTICS: V • Added Note: (1) to the ELECTRICAL CHARACTERISTICS: V • ...

  • Page 25

    PACKAGING INFORMATION Orderable Device (1) Package Type Package Status ISO7220AD ACTIVE SOIC ISO7220ADG4 ACTIVE SOIC ISO7220ADR ACTIVE SOIC ISO7220ADRG4 ACTIVE SOIC ISO7220BD ACTIVE SOIC ISO7220BDG4 ACTIVE SOIC ISO7220BDR ACTIVE SOIC ISO7220BDRG4 ACTIVE SOIC ISO7220CD ACTIVE SOIC ISO7220CDG4 ACTIVE SOIC ...

  • Page 26

    ... Package Type Package Status ISO7221ADG4 ACTIVE SOIC ISO7221ADR ACTIVE SOIC ISO7221ADRG4 ACTIVE SOIC ISO7221BD ACTIVE SOIC ISO7221BDG4 ACTIVE SOIC ISO7221BDR ACTIVE SOIC ISO7221BDRG4 ACTIVE SOIC ISO7221CD ACTIVE SOIC ISO7221CDG4 ACTIVE SOIC ISO7221CDR ACTIVE SOIC ISO7221CDRG4 ACTIVE SOIC ISO7221MD ACTIVE SOIC ISO7221MDG4 ACTIVE ...

  • Page 27

    Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): ...

  • Page 28

    ... TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing ISO7220ADR SOIC ISO7220BDR SOIC ISO7220CDR SOIC ISO7220MDR SOIC ISO7221ADR SOIC ISO7221BDR SOIC ISO7221CDR SOIC ISO7221MDR SOIC PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel Diameter Width (mm) W1 (mm 2500 330 ...

  • Page 29

    ... Device Package Type ISO7220ADR SOIC ISO7220BDR SOIC ISO7220CDR SOIC ISO7220MDR SOIC ISO7221ADR SOIC ISO7221BDR SOIC ISO7221CDR SOIC ISO7221MDR SOIC PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm 2500 D 8 2500 D 8 2500 D 8 2500 ...

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  • Page 32

    ... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’ ...