HCMOS Compatible High CMR integrated circuit ic 10 MBd Optocouplers HCNW2611
chip in electronics
,small scale integrated circuits
HCMOS Compatible, High CMR,
10 MBd Optocouplers
Technical Data
Features Functional Diagram
• HCMOS/LSTTL/TTL
Performance Compatible
• 1000 V/µs Minimum
Common Mode Rejection
(CMR) at VCM = 50 V (HCPL-
261A Family) and 15 kV/µs
Minimum CMR at VCM =
1000 V (HCPL-261N Family)
• High Speed: 10 MBd Typical
• AC and DC Performance
Specified over Industrial
Temperature Range -40°C to TRUTH TABLE (POSITIVE LOGIC)
+85°C
LED | ENABLE | OUTPUT |
ON | H | L |
OFF | H | H |
ON | L | H |
OFF | L | H |
ON | NC | L |
OFF | NC | H |
• Available in 8 Pin DIP,
SOIC-8 Packages
• Safety Approval
UL Recognized per UL1577
2500 V rms for 1 minute and
5000 V rms for 1 minute
(Option 020)
CSA Approved
VDE 0884 Approved with
VIORM = 630 V peak for
HCPL-261A/261N TRUTH TABLE (POSITIVE LOGIC)
Option 060
LED | OUTPUT |
ON | L |
OFF | H |
Applications
• Low Input Current (3.0 mA)
HCMOS Compatible Version
of 6N137 Optocoupler Schematic
• Isolated Line Receiver
• Simplex/Multiplex Data
Transmission
• Computer-Peripheral Interface
• Digital Isolation for A/D,
D/A Conversion
• Switching Power Supplies
• Instrumentation
Input/Output Isolation
• Ground Loop Elimination
• Pulse Transformer Replacement
Description
The HCPL-261A family of optically
coupled gates shown on this data
sheet provide all the benefits of the
industry standard 6N137 family
with the added benefit of HCMOS
compatible input current. This
allows direct interface to all
common circuit topologies without
additional LED buffer or drive
components. The AlGaAs LED
used allows lower drive currents
and reduces degradation by using
the latest LED technology. On the
single channel parts, an enable
output allows the detector to be
strobed. The output of the detector
IC is an open collector schottky-
clamped transistor. The internal
shield provides a minimum
common mode transient immunity
of 1000 V/µs for the HCPL-261A
family and 15000 V/µs for the
HCPL-261N family.
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