• LT1054 +2V and -1V with single chip

    Can you give me the circuit for for generate 

    Vin=14V

    Vout=28 and -14. Ignore the voltage drop. 

    I assume if I I remove those components, it will give me the +2v and -1V output? 

  • Whether can keep use LT1054 for new design

    Hello,

    Several years ago, my original design use LT1054 to generate -15V voltage from +15V supply.(provide +15V to LT1054, use it to generate -15V).

    The, total current used is about 60mA for -15V.

    Now, I need re-design my board, and I want to know whether…

  • LT1054 Voltage Inverter fails to start up with no load

    Hello,

    I'm using LT1054 to produce -12V from +12V using the "Basic Voltage Inverter" circuit from "Typical Applications" on the data sheet.

    I have disconnected the load from the -12V output from the LT1054.

    The issue I have is…

  • RE: Current Sense with LT6370

    Hi TranE,

    I'm glad you're making progress.

    As far as converting a 5V supply to +/-9V? or higher, I'm not an expert on Power products. However, if you only need less than 25mA or so, you may be able to use a switched capacitor design like LT1054…

  • RE: LTC3261 load regulation problem

    Hi Ken,

    In burst mode the LTC3261 regulates at 94%VIN at light loads. In continuous frequency the LTC3261 operates open loop to create -(VIN-VLoss) where the voltage loss is primarily do to IOUT multiplied by the equivalent open loop resistance (ROL…

  • AD633 offset and supply

    Hello,

    I need some help with my circuit. 2 sine waves are generated with 2 AD9833's, then are amplifier and filtered with 2 1st order low pass filters, and then connected to the AD633. As the sine wave have about 200 mV offset, I'm using 2 coupling capacitors…

  • AD620 and pH probe (spice vs reality)

    Hi,

    I had some experience in past using AD620 for current measurement with a shunt on high side of a small DC motor. Now I'd like to make the same thing with a pH probe. I use a LT1054 chip to produce the inverse voltage with recommended capacitors…

  • pH probe with an AD620, possible or not possible? Check my results

    Hi,

    I had some experience in past using AD620 for current measurement with a shunt on high side of a small DC motor. Now I'd like to make the same thing with a pH probe. I use a LT1054 chip to produce the inverse voltage with recommended capacitors sizes…

  • RE: LT1054L

    Hello, For the S8 package CIN, (C4 in this case) should be about equal to COUT (C5). This is explained on page 8 of the datasheet but it does not specifically specify the "L" version. 

    The LT1054 basically connects C4 across VIN and GND to charge…

  • Extra power supplies for Active Learning Modules (M2k , M1k)

    Extra power supplies for Active Learning Modules (M2k , M1k)

    We have over the years gotten many questions with regard to the limited current and voltages available from the built in user power supplies provided by the Active Learning Modules ADALM1000…