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Low power OP AMP

Yonatan Ohana
Prodigy 50 points
Other Parts Discussed in Thread: LMP2234, LPV324-N, OPA4379, TLC27L4, TLV2244, TLV2324, TLV2404

Hi,

Need some help to locate

Low power (up to 80 uA Quiescent current ) 4 Channel OP AMP (TSSOP 14) .

Supply Voltage 2.7 < V+  (Rail to Rail output voltage)  to use as Buffer 

Thanks  a lot.

  • 0
    TI__Prodigy 575 points

    Hello Yonatan,

    There are a several devices from the Precision Amplifier portfolio we can recommend that may meet your needs. Here are a few highlights:

    TLV2404 if you want the lowest possible quiescent current (0.88 µA per channel).

    OPA4330 if low offset is also a priority (Max Vos = 50 µV).

    OPA4317 if you need additional bandwidth (1 MHz at G=1).

    OPA4244 if a wider supply range is necessary (2.2 < Vs < 36).

    If you want to explore all TI Precision Amplifiers that meet your design needs (20 devices)  please see the following custom parametric search link:

    Low Power TSSOP-14 Amplifiers

    Please let us know if you have any additional questions or have additional selection criteria we can utilize to find you the best possible part for your application. 

    -Chris

  • 0
    TI__Guru 52336 points

    Hello Yonatan,

    I am assuming the 80uA is for all four amplifiers (20uA max per amplifier) in a "PW' (TSSOP-14) package:

    GPN VosRoomMax (mV) IsMaxCh (mA) GbwTyp (MHz) 1kPrice ($)
    LMP2234 0.15 0.009 0.13 1.86
    LPV324-N 7 0.01 0.152 0.48
    OPA4379 1.5 0.0055 0.09 0.8
    TLC27L4 10 0.017 0.085 0.42
    TLV2244 3 0.00125 0.0055 1.57
    TLV2324 10 0.017 0.085 1.46
    TLV2404 1.2 0.00095 0.0055 1.91

    Beware that microamp level Iq devices have difficulty driving loads less than 100k - so be mindful of max sink/source currents if using for a buffer.

    Regards,