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Source measure unit & power analyzer

Former Member

Looking for recommendations for a DC power analyzer and source measure unit in the under $1000 range.  Current range: few uA to few amps, voltage range: under 30V, dynamic current measurement very desirable.

What do people use currently? 

Tx

  • 0

    Can you be  a bit more specific - I can't help you re. the power analyzer (if it's mains power you mean bu perhaps you don't) but I know a bit about SMUs - if you means stuff like this:

     

    image

     

     

    or

    image

     

    but I don't think you'll get one new for anything less than $3500.

     

    MK

  • 0 in reply to michaelkellett

    Thank you Michael.  I have updated the question with more specifics.

  • 0

    Well Nick, there is still nothing like enough information but I can give some answers.

     

    There are nice SMUs from Keysight (and  a really nice modular dc power analyser from Keysight at $20k ++) and Keithley but way outside your budget - so we'll forget them.

    A variety of people make devices intended for debugging.measuring micros (IAR and Hitex to name two)  - these are cheaper but limited in application :

    here's one of them:

    ISCOPE-ARM IAR Systems | Mouser

     

    I would use a scope and a meter with a decent lab power supply:

    You can buy a Keysight DMM with quite fast response  34465A34465A would be ideal but is outside your budget

    You could buy a Keysight data logger like  U2352AU2352A but it's nearly all your budget I have one(or a similar one but I never use it for this kind of thing

     

    What I do is put  a small resistor in series with the DUT (Device Under Test) and look at the voltage drop with the scope - sometimes you'll need to knock up a little amplifier to boost the signal.

    If you need to modulate the power supply voltage or current you are into big money again.

    You can measure the current with a current transducer but the dynamic range of the cheap ones is poor.

     

    Making one is an option but will eat a lot of time.

     

    MK