This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

  • TI Thinks Resolved

TL074A: Load Resistance = 100K Ohm

Expert 5400 points

Replies: 1

Views: 52

Part Number: TL074A

Hello, In the SPEC of the Figure 6. Maximum Peak Output Voltage vs Load Resistance, it shows the VOM vs. RL.

However, the max. RL is 10K Ohm. What happens if the RL goes up to 100K Ohm? Very thanks. 

Application: Industrial Motor

Regards

Brian Wang

  • Brian,

    Almost nothing happens. As the curve approaches 10k it is flattening out. Going to 100k and beyond, the curve continues to flatten. 100k only gains a little voltage that would be hard to see on figure 6 chart.

    Here is TL082 at +/-5V chart where it is easier to see voltage and gets closer to 100k. This chart also separates VOL and VOH. The lower supply voltage makes lower load current which emulates  a higher resistance at +/-15V. TL074 will be similar to this.

    Do you need a low cost rail to rail output alternative?

    Regards,
    Ronald Michallick
    Linear Applications

    TI assumes no liability for applications assistance or customer product design. Customer is fully responsible for all design decisions and engineering with regard to its products, including decisions relating to application of TI products. By providing technical information, TI does not intend to offer or provide engineering services or advice concerning Customer's design. If Customer desires engineering services, the Customer should rely on its retained employees and consultants and/or procure engineering services from a licensed professional engineer (LPE).

     

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.