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  • VCA822: VCA822

    Resolved
    Part Number: VCA822 I want to design programmable gain block with VCA822. The IC has 100V/V gain range but at simulation, the recommended resistor values for 100V/V (Rf = 845 ohm, Rg = 16.9 ohm) do not provide 100V/V at VG = 1V. The result has big offset…
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  • VCA822: Low Pass filter

    Resolved
    Part Number: VCA822 Other Parts Discussed in Thread: TINA-TI Hello, I'm using VCA822 into an AGC system in the configuration of Gmax = 10 (Rf = 1K, Rg =200) from a single-ended source. VCA822 has quite big bandwidth (> 100MHz), and i need to filter…
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  • RE: VCA810: VCA810

    Resolved
    Hi Betul, VCA822 is the more accurate device. You may also look into the VCA821, LMH6505, and LMH6503 as they have better accuracy as well. Since these devices have internal gain adjust circuitry, there is no way to improve the accuracy of the gain unfortunately…
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  • VCA822: supply voltage

    Resolved
    Part Number: VCA822 Other Parts Discussed in Thread: VCA820 , , LMH6502 , LMH6503 Hi On the datasheet, it is defined as the below. And, The maximum operating voltage is not defined. However, VCA820 it is defined as +/-6V on the datasheet, Can we refer…
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  • VCA822: VCA822 Over-heating

    Part Number: VCA822 Hi, I'm implementing a Voltage Controlled Amp using a VCA822. I have got two ICs, each time I connect and power them up to +/- 5V and GND the ICs over-heat to the point I am afraid they will be destroyed. There is no mention of…

  • VCA822 calculations

    hello does anyone know the specs needed for the Rg and Rf to achieve an absolute max gain of 100?
    • Answered

  • LMH6505: AGC circuits at V+/V- = 7V/0V

    Resolved
    Part Number: LMH6505 Other Parts Discussed in Thread: VCA822 , VCA820 , VCA821 , VCA824 , LMH6714 , LMH6609 Hello, My customer would like to use LMH6505 as an AGC described in the figure 49 in the datasheet. However, they would like to use LMH6505 with V…
    • Resolved

  • vca822

    Other Parts Discussed in Thread: LMH6503 , VCA822 , LMH6502 Does any one know of a single rail ( 5V) VCA that I can use to control the gain to an adc.

  • Interfacing VCA822 as singled ended input from an OpAmp

    Other Parts Discussed in Thread: VCA822 , OPA378 Hello, I'm having trouble configuring the input of the VCA822, I am using it as a single ended input and feeding it from a OPA378 OpAmp. My problem is the signal coming out of the OPA378 was riding on a 2…

  • LMH6503: LMH6503

    TI Thinks Resolved
    Part Number: LMH6503 Other Parts Discussed in Thread: VCA822 , VCA820 , VCA824 Hello, on page 19 of LMH6503 daatasheet, Figure 61 shows how to adjust (on pin 12) the output offset of the LMH6503 IC. Can this adjustment be useful to adjust the offset from…

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