ISO121x Isolated Digital Input Receivers

Texas Instruments ISO121x Isolated Digital Input Receivers are isolated 24V to 60V digital input receivers, compliant with IEC 61131-2 Type 1, 2, and 3 characteristics. These devices are suitable for programmable logic controllers (PLCs) and motor-control digital input modules. Unlike traditional optocoupler solutions with discrete, imprecise current limiting circuitry, the ISO121x devices provide a simple, low-power solution with an accurate current limit. This feature allows for the design of compact and high-density I/O modules. These devices do not require a field-side power supply and are configurable as sourcing or sinking inputs.

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Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Mounting Style
Package / Case
Number of Channels
Polarity
Data Rate
Isolation Voltage
Isolation Type
Supply Voltage - Max
Supply Voltage - Min
Operating Supply Current
Propagation Delay Time
Minimum Operating Temperature
Maximum Operating Temperature
Packaging
Texas Instruments Digital Isolators Dual-channel Isolate d 24-V to 60-V digi
Datasheet
38,112In Stock
Min.: 1
Mult.: 1

ISO1212 SMD/SMT SSOP-16 2 Channel Unidirectional 4 Mb/s 2500 Vrms Capacitive Coupling 5.5 V 2.25 V 1.2 mA 10 ns - 55 C + 125 C Tube
Texas Instruments Digital Isolators Single-channel Isola ted 24-V to 60-V di A 595-ISO1211DR
Datasheet
138,721In Stock
Min.: 1
Mult.: 1

ISO1211 SMD/SMT SOIC-8 1 Channel Unidirectional 4 Mb/s 2500 Vrms Capacitive Coupling 5.5 V 2.25 V 600 uA 10 ns - 55 C + 125 C Tube
Texas Instruments Digital Isolators Single-channel Isola ted 24-V to 60-V dig
Datasheet
2,183In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

ISO1211 SMD/SMT SOIC-8 1 Channel Unidirectional 4 Mb/s 2500 Vrms Capacitive Coupling 5.5 V 2.25 V 600 uA 10 ns - 55 C + 125 C Reel, Cut Tape, MouseReel
Texas Instruments Digital Isolators Dual-channel Isolate d 24-V to 60-V digit
Datasheet
2,213In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

ISO1212 SMD/SMT SSOP-16 2 Channel Unidirectional 4 Mb/s 2500 Vrms Capacitive Coupling 5.5 V 2.25 V 1.2 mA 10 ns - 55 C + 125 C Reel, Cut Tape, MouseReel
Texas Instruments Digital Isolators Single-channel Isola ted 24-V to 60-V di A 595-ISO1211D
Datasheet
5,090In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

ISO1211 SMD/SMT SOIC-8 1 Channel Unidirectional 4 Mb/s 2500 Vrms Capacitive Coupling 5.5 V 2.25 V 600 uA 10 ns - 55 C + 125 C Reel, Cut Tape, MouseReel
Texas Instruments Digital Isolators Dual-channel Isolate d 24-V to 60-V digi
Datasheet
6,230In Stock
5,000Expected 2026-02-19
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,500

ISO1212 SMD/SMT SSOP-16 2 Channel Unidirectional 4 Mb/s 2500 Vrms Capacitive Coupling 5.5 V 2.25 V 1.2 mA 10 ns - 55 C + 125 C Reel, Cut Tape, MouseReel