Texas Instruments ISO7220CDR
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- ISO7220CDR
- Texas Instruments
- DGTL ISO 2.5KV GEN PURP 8SOIC
- Digital Isolators
- ISO7220CDR Datasheet
- 8-SOIC (0.154", 3.90mm Width)
- 8-SOIC (0.154", 3.90mm Width)
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Lead free / RoHS Compliant - 4743
- Spot Inventory / Athorized Dstributor / Factory Excess Stock
- 1 year quality assurance 》
- Click to get rates
What is ISO7220CDR
Texas Instruments Part Number ISO7220CDR（Digital Isolators）, developed and manufactured by Texas Instruments, distributed globally by Jinftry. We distribute various electronic components from world-renowned brands and provide one-stop services, making us a trusted global electronic component distributor.
ISO7220CDR is one of the part numbers distributed by Jinftry, and you can learn about its specifications/configurations, package/case, Datasheet, and other information here. Electronic components are affected by supply and demand, and prices fluctuate frequently. If you have a demand, please do not hesitate to send us an RFQ or email us immediately [email protected] Please inquire about the real-time unit price, Data Code, Lead time, payment terms, and any other information you would like to know. We will do our best to provide you with a quotation and reply as soon as possible.
ISO7220CDR Specifications
- Part NumberISO7220CDR
- CategoryDigital Isolators
- ManufacturerTexas Instruments
- DescriptionDGTL ISO 2.5KV GEN PURP 8SOIC
- Package8-SOIC (0.154", 3.90mm Width)
- Series-
- TypeGeneral Purpose
- Voltage - Supply2.8 V ~ 5.5 V
- Operating Temperature-40°C ~ 125°C
- Package / Case8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package8-SOIC
- Number of Channels2
- Data Rate25Mbps
- TechnologyCapacitive Coupling
- Voltage - Isolation2500Vrms
- Isolated PowerNo
- Inputs - Side 1/Side 22/0
- Channel TypeUnidirectional
- Common Mode Transient Immunity (Min)25kV/µs
- Propagation Delay tpLH / tpHL (Max)42ns, 42ns
- Pulse Width Distortion (Max)2ns
- Rise / Fall Time (Typ)1ns, 1ns
Application of ISO7220CDR
ISO7220CDR Datasheet
ISO7220CDR Datasheet , 8-SOIC (0.154", 3.90mm Width),General Purpose,2.8 V ~ 5.5 V,-40°C ~ 125°C,8-SOIC (0.154", 3.90mm Width),8-SOIC,2,25Mbps,Capacitive Coupling,2500Vrms,No,2/0,Unidirectional,25kV/µs,42ns, 42ns,2ns,1ns, 1ns
ISO7220CDR Classification
Digital Isolators
FAQ about Digital Isolators
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1. What is a digital isolator?
A digital isolator is a device that realizes signal transmission under electrical isolation. It is widely used in various electronic system equipment such as industrial control, power energy, communication networks, instrumentation, consumer electronics, etc. Its core function is to isolate different circuits at the electrical level, effectively preventing high voltage or noise signals from interfering with low voltage circuits, thereby improving the overall reliability, anti-interference ability and safety of the system.
Basic concepts and functions of digital isolators
Digital isolators transmit signals through light, electromagnetic or other means, while ensuring that there is no direct electrical connection between the two circuits, thereby providing electrical isolation. Its main functions include:
Signal isolation: prevent high voltage or noise signals from interfering with low voltage circuits.
Anti-interference ability: isolate electromagnetic interference (EMI) and radio frequency interference (RFI), and improve the stability of data transmission.
Safety: protect low voltage circuits and microcontrollers in high voltage or potentially dangerous working environments to prevent accidents.
Signal conversion: convert signals between different levels and voltage domains, and be compatible with multiple power supply voltages.
Data integrity: reduce the impact of ground loops and other potential interference sources, and improve the integrity and accuracy of data transmission.
Working principle of digital isolator
The working principle of digital isolator is mainly based on the following technologies:
Optical coupling mechanism: Use light-emitting diodes and photosensitive elements (such as photodiodes or phototransistors) to convert optical signals. The design is simple and low-cost, suitable for low-speed signal transmission, but the transmission speed is slow.
Electromagnetic coupling: Signal transmission through transformers or electromagnetic waves, suitable for high-bandwidth applications, but the design is complex and may be affected by the magnetic field environment.
Capacitive coupling: Electrical isolation of signals is achieved through capacitors, suitable for high-speed signal transmission, but the performance of low-frequency signal transmission is poor.
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2. What is an electronic isolator?
An electronic isolator is an electronic component used to achieve electrical isolation in a circuit. It is mainly used to prevent the flow of current while allowing electrical signals or energy to be transmitted in some way. It ensures the safety of equipment and people by isolating the electrical connections between different circuits.
Definition and function
Electronic isolators effectively isolate the electrical connections between two circuits by using components with special structures to prevent current, signals or interfering substances from being transmitted between the two circuits. Its main functions and effects include:
Safety isolation: prevent high voltage or high power circuits from affecting low voltage or low power circuits, and protect the safety of equipment and personnel.
Electrical isolation: prevent noise, surges and interference in the power supply from propagating to other circuits, and improve the stability and reliability of the circuit.
Signal isolation: isolate the ground loop during signal transmission to avoid signal interference and signal loss.
Baud isolation: in digital communication or data transmission, isolate the data transmission loop to protect the receiver from potential electrical interference and attacks.
Types and application areas
There are many types of electronic isolators, including:
Air isolator: uses air as a medium, with a simple structure and high reliability.
Gas isolator: uses gas medium to achieve circuit isolation, suitable for high voltage environments and high power circuits.
Liquid isolator: uses insulating liquid as a medium, suitable for high voltage scenarios, with good insulation performance and heat dissipation effect. -
3. What are the methods of digital isolation?
The methods of digital isolation mainly include the following:
Optocoupler isolation: Optocoupler isolator is the earliest isolation device. It uses optical signals to transmit electrical signals. It isolates the input signal from the internal circuit through the photoelectric coupler, or isolates the internal output signal from the external circuit. Optocoupler isolator has a higher isolation voltage and is suitable for the isolation needs of various digital signals.
Pulse transformer isolation: The pulse transformer transmits pulse signals without transmitting DC components through its smaller distributed capacitance characteristics, and is often used in the control isolation of controllable devices. The signal transmission frequency of the pulse transformer is generally between 1kHz and 1MHz, and the transmission frequency of the new high-frequency pulse transformer can reach 10MHz.
Relay isolation: Relays are simple, practical and inexpensive as isolation elements. Relays are used to isolate low-voltage DC from high-voltage AC to prevent interference from the high-voltage side from entering the low-voltage side.
Digital isolator: Digital isolator uses capacitor or electromagnetic isolation technology to transmit signals, which has the advantages of optimizing system BOM material cost, reducing PCB area, accurate timing characteristics, low power consumption, and enhanced common-mode transient immunity. Digital isolators have become the first choice for many applications in recent years.
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