ISOM8710: What's the IQ quiscent current of ISOM8710?

Cheng Zhang

Part Number: ISOM8710

HI team,

Could you pls kindly let me know the IQ of the ISOM8710 when there is no input signal and output is low? Will it be uA level?

I have a project requires very low IQ signal isolators.

Thanks

0 Cheng Zhang 11 months ago

Further clarify, IQ I mean the supply quiscent current when no signal present. If it's relatively high, may I know why the IQ will be so high?

Seems no much logic that will consume the supply current here ,thanks

0 Andrew Jackiw 11 months ago in reply to Cheng Zhang

Hello Cheng,

Based on your description the IQ parameter will match to Icch and IccL in the datasheet. Please see below highlighted section.

Let me know if this answers your question or if it is low enough for your application.

Best,
Andrew

0 Cheng Zhang 11 months ago in reply to Andrew Jackiw

No, it's very high. May I understand why the IQ so high, even when there is no signal transimission?

0 Andrew Jackiw 11 months ago in reply to Cheng Zhang

Hi Cheng,

ISOM8710 was designed to be drop in replace with the industry's most common option-couplers. Currently there is no lower current opto-emulator. We do have a digital isolator designed for low current applications (ISO7021 Ultra-low power consumption – 4.8 μA per channel quiescent current at 3.3 V)

Please let me know if there is a specific opto-coupler solution that you are trying to drop in replace.

Best,
Andrew

Isolation forum