ISO7240CF_15 Datasheet, PDF (1/46 Pages) Texas Instruments – High-Speed, Quad-Channel Digital Isolators

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ISO7240CF, ISO7240C, ISO7240M
ISO7241C, ISO7241M, ISO7242C, ISO7242M
SLLS868R – SEPTEMBER 2007 – REVISED SEPTEMBER 2015
ISO724x High-Speed, Quad-Channel Digital Isolators
1 Features
•1 25 and 150-Mbps Signaling Rate Options
– Low Channel-to-Channel Output Skew;
1 ns Max
– Low Pulse-Width Distortion (PWD);
2 ns Max
– Low Jitter Content; 1 ns Typ at 150 Mbps
• Selectable Default Output (ISO7240CF)
• > 25-Year Life at Rated Working Voltage
(See Application Note SLLA197 and Figure 16)
• 4 kV ESD Protection
• Operates With 3.3-V or 5-V Supplies
• High Electromagnetic Immunity
(See Application Report SLLA181)
• –40°C to 125°C Operating Temperature Range
• Safety and Regulatory Approvals:
– VDE 4000 V_PK Basic Insulation per DIN V VDE
V 0884-10 (VDE V 0884-10):2006-12
– 2.5 kV_RMS Isulation for 1 minute per UL 1577
– CSA Component Acceptance Notice #5A and
IEC 60950-1 End Equipment Standard
2 Applications
• Industrial Fieldbus
• Computer Peripheral Interface
• Servo Control Interface
• Data Acquisition
3 Description
The ISO7240, ISO7241 and ISO7242 are quad-
channel digital isolators with multiple channel
configurations and output enable functions. These
devices have logic input and output buffers separated
by TI’s silicon dioxide (SiO₂) isolation barrier. Used in
conjunction with isolated power supplies, these
devices block high voltage, isolate grounds, and
prevent noise currents from entering the local ground
and interfering with or damaging sensitive circuitry.
The ISO7240 has all four channels in the same
direction while the ISO7241 has three channels in the
same direction and one channel in opposition. The
ISO7242 has two channels in each direction.
Device Information⁽¹⁾
PART NUMBER PACKAGE
BODY SIZE (NOM)
ISO7240CF
ISO7240C
ISO7240M
ISO7241C
SOIC (16)
10.30 mm x 7.50 mm
ISO7241M
ISO7242C
ISO7242M
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Simplified Schematic
V_CCI
V_CCO
Isolation
Capacitor
INx
OUTx
DISABLE
(ISO7240CF-only)
GNDI
GNDO
(1) V_CCI and GNDI are supply and ground connections respectively for the input channels.
(2) V_CCO and GNDO are supply and ground connections respectively for the output channels.
ENx
or
CTRL (ISO7240CF-only)
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.