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ISO7220CDR

TI ISO7220CDR Digital Isolator, 25 Mbps, 2500 Vrms, 8-SOIC

MPNISO7220CDR
Active

Texas Instruments ISO7220CDR, General Purpose digital isolator, capacitive coupling, 2 unidirectional channels, 25 Mbps data rate, 2500 Vrms isolation, 2.8V~5.5V supply, -40°C~125°C, 8-SOIC package, Tape & Reel.

$3.4300Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

ISO7220CDR specifications
ParameterValue
TypeGeneral Purpose
Channel typeUnidirectional
MountingSurface Mount
Supply voltage2.8V ~ 5.5V
Voltage - isolation2500Vrms
Isolated powerNo
Operating temperature-40°C~125°C
Pulse width distortion2ns
PackageTape & Reel (TR); Cut Tape (CT)
Data rate25Mbps
TechnologyCapacitive Coupling
Case8-SOIC (0.154\", 3.90mm Width)
Channels2
Inputs - side 1/Side 22/0
Rise (Fall time)1ns, 1ns
Propagation delay tpLH (tpHL)42ns, 42ns
Common mode transient immunity25kV/µs

Product details

It supports a data rate of 25 Mbps with typical rise/fall times of 1 ns, making it suitable for isolating SPI, UART, or general-purpose digital signals in industrial environments.

The 2 ns maximum pulse-width distortion keeps the duty cycle intact, which matters when you are passing PWM signals for motor control or encoder feedback. If you need to push past 25 Mbps, you would step up to a higher-speed isolator family; for most industrial sensor interfaces and PLC digital inputs, this is the sweet spot.

Isolation and immunity — 2500 Vrms and 25 kV/µs CMTI

Rated for 2500 Vrms isolation, this part covers basic insulation for mains-connected equipment in overvoltage category II environments. The 25 kV/µs minimum common-mode transient immunity means it will not glitch when a motor drive switches a high-voltage rail — a common failure point in optocoupler-based designs. Capacitive coupling gives it better long-term stability than optocouplers, with no LED degradation over temperature or time.

Housed in a standard 8-SOIC package (3.90 mm width), it is a drop-in footprint for many existing designs. No isolated power on chip, so you still need a separate DC-DC converter or an isolated module if the two sides do not share a common ground reference.

Frequently asked questions

What is the difference between ISO7220 and ISO7220C?

The ISO7220C variant typically offers a wider operating temperature range or different isolation rating; the ISO7220CDR is the standard industrial-temperature (-40°C to 125°C) version in Tape & Reel. Check the TI datasheet for the exact suffix table.

Is ISO7220CDR compatible with 3.3V systems?

Yes.