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  • TIPD107: This circuit is suitable at 100 Hz. Is there a way this can be modified to work at around 400 Hz?

    Part Number: TIPD107 Other Parts Discussed in Thread: INA326 , I want to be able to sense a voltage signal from a photomultiplier tube (in Volts... nominally it would be around 1 V). The voltage signal itself is around 360 Hz. I would like to be able to…
    • Answered

  • RE: TIPD107: Can TI suggest something to have 300uA current source

    Resolved
    Thanks for the feedback :-) Kai
    • Answered

  • RE: TIPD107: Need to modify the circuit for 12V compliance voltage

    Resolved
    Hi Krishna, It sounds like you want VIN = 0-12V, IOUT=0-1024uA. I followed TIPD107 and changed the components to work for VIN=0-10V and IOUT=0-1024uA. This was your initial request. Please follow the design to get your design requirements. You may still…

  • TIPD107: Need to modify the circuit for 12V compliance voltage

    TI Thinks Resolved
    Part Number: TIPD107 Other Parts Discussed in Thread: INA128 , INA326 , OPA735 , OPA725 , , OPA191 Hi, My application is to convert voltage to current with below details Input Range availability: 0 to 10V Step voltage- 2mV Current Output- 0 to 1024uA with 1uA…
    • Answered

  • RE: INA326: Volt In/Current Out

    Resolved
    Hi Miguel, Thanks for your post. I can help. It looks like you are referring to TIPD107: http://www.ti.com/lit/ug/slau507/slau507.pdf What is your expected input range? What is your desired output range? This design is for 0-5V in, 0-5µA out but we can…
    • Answered

  • RE: Cuurent Source Topology

    Resolved
    Hello, So we can see what circuit you've been using please share the circuit schematic for your existing design. Without knowing what circuit you're working with one option would be a circuit similar to the one shown in TIPD107 . To meet your goals…
    • Answered

  • RE: voltage to current converter

    Resolved
    There are several circuits that use op amps and BJT or MOS pass devices to create current sources with high output impedance. Take a look at the following reference designs: TIPD101 , TIPD102 , TIPD107 and also the XTR110 and XTR111 integrated circuits…

  • RE: Op Amps suitable for Adjustable Current Source Circuit

    Sainer, I suspect your stability issues are more related to the feedback loop of the switching regulator as opposed to the op amp itself. In general, capacitive load or capacitance on the inverting feedback node causes stability issues. Also, the output…

  • Null detector; current sense 1nA-300mA; multiple sense IC

    TI Thinks Resolved
    Other Parts Discussed in Thread: INA121 , INA116 , PGA280 , INA111 , INA110 , TIPD135 , REF200 , TIPD101 , TIPD107 , ADS1248 , THS4521 Problem : 1. I have to make a null detector with MCU. 2. Input voltage maximum is 30V dc. 3. Current to detect is 1nA to 300mA. 4. Galvanometer…

  • Current generator

    Other Parts Discussed in Thread: XTR110 , TIPD101 , TIPD107 , TIPD102 , TIPD103 , LMC6001 , OPA170 , TINA-TI I need a current generator of 1-2mA to supply an NTC. The power supply has to be 10 or 15 V. I wanted to use an XTR110, but it seems to me a little too…

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