ISO7240C
Every spec below is cited to the manufacturer datasheet. Compare the closest alternatives, then ask the assistant what it means for your design.
What the ISO7240C does
The ISO7240, ISO7241, and ISO7242 are quad-channel digital isolators featuring silicon dioxide barriers that block high voltage and isolate grounds. These devices support 25-Mbps or 150-Mbps signaling rates with 4kV ESD protection and operate across a -40°C to 125°C temperature range. The ISO7240CF variant includes a selectable failsafe output and input disable function. Variants offer TTL or CMOS input thresholds, with the C option providing noise filtering. Engineers typically use these components in industrial fieldbus systems, computer peripheral interfaces, servo control applications, and data acquisition systems to prevent noise currents from damaging sensitive circuitry.
Datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current (abs max) | — | — | 239 mA | SOIC-8; is | TI datasheet, p. 18 — IEC SAFETY LIMITING VALUES |
| output current | — | — | 4 mA | iol; RECOMMENDED OPERATING CONDITIONS | TI datasheet, p. 3 — RECOMMENDED OPERATING CONDITIONS |
| supply voltage range | 3.15 V | — | 5.5 V | ISO7240C/CF, ISO7242C, ISO724xM,; vcc; RECOMMENDED OPERATING CONDITIONS | TI datasheet, p. 3 — RECOMMENDED OPERATING CONDITIONS |
| operating temperature | -40 °C | — | 125 °C | TI datasheet, p. 1 | |
| power dissipation | — | — | 220 mW | VCC1 = VCC2 = 5.5 V, TJ = 150°C, CL = 15 pF, Input a 50% duty cycle square wave; pd; THERMAL CHARACTERISTICS | TI datasheet, p. 18 — THERMAL CHARACTERISTICS |
| input capacitance | — | 2 pF | — | ci(4e6πt); ELECTRICAL CHARACTERISTICS | TI datasheet, p. 4 — IEC 60747-5-2 INSULATION CHARACTERISTICS |
| isolation voltage | — | — | 560 V | viorm; over recommended operating conditions (unless otherwise noted) | TI datasheet, p. 3 — over recommended operating conditions (unless otherwise noted) |
| propagation delay | — | 15 ns | 20 ns | See Figure 2; propagation; Performance under normal operating conditions (unless otherwise noted) | TI datasheet, p. 11 — over recommended operating conditions (unless otherwise noted) |
| rise time | — | 2 ns | — | See Figure 1; Performance under normal operating conditions (unless otherwise noted) | TI datasheet, p. 11 — over recommended operating conditions (unless otherwise noted) |
| fall time | — | 2 ns | — | Performance under normal operating conditions (unless otherwise noted) | TI datasheet, p. 11 — over recommended operating conditions (unless otherwise noted) |
| output voltage low | — | — | 100 mV | vol; ELECTRICAL CHARACTERISTICS | TI datasheet, p. 4 — IEC 60747-5-2 INSULATION CHARACTERISTICS |
| cmti | 25 GV/s | 50 GV/s | — | cmti; ELECTRICAL CHARACTERISTICS | TI datasheet, p. 4 — IEC 60747-5-2 INSULATION CHARACTERISTICS |
| output count | — | 4 | — | TI datasheet, p. 1 — APPLICATIONS | |
| channel count | — | 4 | — | TI datasheet, p. 2 — AVAILABLE OPTIONS |
Closest matches to ISO7240C
Frequently asked questions
What is the channel count of the ISO7240C?
The channel count is 4.
What is the common-mode transient immunity (cmti) specified in the ELECTRICAL CHARACTERISTICS?
The common-mode transient immunity (cmti) is 50 GV/s.
What is the fall time of the ISO7240C under normal operating conditions?
The fall time is 2 ns.
What is the input capacitance under the condition ci(4e6πt) in the ELECTRICAL CHARACTERISTICS?
The input capacitance is 2 pF.
What is the isolation voltage under viorm over recommended operating conditions?
The isolation voltage is 560 V under viorm over recommended operating conditions.
What is the maximum operating temperature for the ISO7240C?
The maximum operating temperature is 125 °C.
What is the output count of the ISO7240C?
The output count is 4.
What is the output current (iol) under RECOMMENDED OPERATING CONDITIONS?
The output current (iol) is 4 mA under RECOMMENDED OPERATING CONDITIONS.
What is the output voltage low (VOL) specified in the ELECTRICAL CHARACTERISTICS?
The output voltage low (VOL) is 100 mV.
What is the power dissipation under the conditions VCC1 = VCC2 = 5.5 V, TJ = 150°C, CL = 15 pF, and Input a 50% duty cycle square wave?
The power dissipation is 220 mW.
What is the propagation delay of the ISO7240C under normal operating conditions as shown in Figure 2?
The propagation delay is 15 ns.
What is the quiescent current for the ISO7240C in an SOIC-8 package?
The quiescent current is 239 mA.