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LMV358: VOL change by temp. and Load

Hiroshi Doi35
Expert 2845 points
Part Number: LMV358
Other Parts Discussed in Thread: TLV9062, , LMV612

Hi all,

LMV358IDR

Specsheet P11 Figure 23 shows Vo vs Vcc.

My customer want another plot.
Vertical axis is same.
need 1. Horizontal axis TEMP.
need 2. Horizontal axis RL (Load)

Lo level of Vo : VoL is important for him.

If anyone have data like this., please provide me.
If it is secret data, I will ask from another way.

  • 0
    TI__Mastermind 25865 points
    Hiroshi-san,

    For output swing vs. load, please look at Figures 13-15. These figures show how much current the device and source and sink versus output voltage. I am still working on a response for output swing vs. temperature.
  • 0
    TI__Guru**** 167306 points

    Hiroshi-san,

    LMV358 has a anti saturation circuit for the output NPN to keep bias current as low as possible. Therefor VOL will never be zero. Becuase VOL is a critical performance specification then I would suggest using a different op amp. LMV612 is a very similar device with better VOL and rail to rail input.  TLV9062 also gives higher bandwidth and slew rate.

    Here is VOL char data for 2.7V supply and 10k load to 1.35V (about 135uA) (-40C to 85C)

    LotID.Tmp        Mean     StdDev Mean-3s  LowRead  HiRead   Mean+3s   Reads
    --------------+--------------------------------------------------------------
    A. LMV358.-40 | 72.714mV 7.727mV 49.533mV 64.453mV 81.055mV 95.895mV  50
    B. LMV358.0C  | 72.714mV 7.946mV 48.876mV 64.453mV 81.055mV 96.552mV  50
    C. LMV358.25C | 76.210mV 6.919mV 55.453mV 64.453mV 81.055mV 96.967mV  50
    D. LMV358.70C | 79.707mV 3.174mV 70.185mV 64.453mV 81.055mV 89.229mV  50
    E. LMV358.85C | 85.234mV 7.246mV 63.496mV 80.078mV 96.680mV 106.972mV 50
    --------------+----------------------------------------------------------------