LMV604: LMV604 Supply Current is too high.

Terry Tseng

Expert 1075 points

Part Number: LMV604
Other Parts Discussed in Thread: TLV6004, TLV4379, TLV8544, LMC6044

My customer had used LMV604.

Due ti LMV604 Supply Current is too high, he would like to search another one to instead of LMV604.

Could you recommend TI part to instead of LMV604.

over 6 years ago

0 Ron Michallick over 6 years ago

TI__Guru*** 142746 points

Terry,

TLV6004 is less supply current. How much lower is needed?
There are lower current devices, but bandwidth and slew rate will be lower.

0 Terry Tseng over 6 years ago in reply to Ron Michallick

Expert 1075 points

Hi

I have asked my customer, but he don't tell me how lower is needed.
Could you recommend the lower current devices.
I and my customer will check datasheet frist.

0 Ron Michallick over 6 years ago in reply to Terry Tseng

TI__Guru*** 142746 points

Terry,

For lowest IQ with 1ku price cost in mind, there is the TLV4379

For a search URL there is : www.ti.com/.../products.html
This is 131 device list, so sort the list by "supply current per channel". Feel free to add more qualifiers like gain bandwidth or slew rate.

0 Chuck Sins over 6 years ago in reply to Ron Michallick

TI__Mastermind 23970 points

Terry

we actually have an entire family of low quiescent current devices where the quiescent current is less than 10uA and even less than 1uA. As Ron was mentioning, the more information you can share about the application, the better we can help meet the needs. An additional device for you to consider depending on supply voltage range and bandwidth requirement is the TLV8544 which has 8kHz bandwidth and 500nA quiescent current. If any additional information becomes available, please reach out.

Thanks,

Chuck

0 Terry Tseng over 6 years ago in reply to Chuck Sins

Expert 1075 points

Dear TI Sir

My customer had used LMV604.
Due to LMV604 Supply Current is too high, he would like to search another one to instead of LMV604.

Topic spec.
Supply voltage(V+) – (V–) : Vmax = 5.5 V
Input bias current : IBmax = 1 pA
Supply current : ISmax < 170uA

I recommended LMC6044 and my customer checked OK.
But LMC6044 is expensive.
Have a better one to instead of LMC6044 ?

0 Ron Michallick over 6 years ago in reply to Terry Tseng

TI__Guru*** 142746 points

Terry,

The 1pA input current is the toughest requirement. That parameter comes at a premium price.

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LMV604: LMV604 Supply Current is too high.