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Loop Antenna at ~60 kHz
On 10/29/2014 7:05 AM, Lostgallifreyan wrote:
rickman wrote in : The entire power budget is a couple hundred microwatts. There's a tiny Texas Instruments one that might do it, very cheap too. TLV2341, uses as little as 17A single rail supply at up to 8V. I didn't use it because it wasn't fast enough for what I bought it for, but it might be worth trying for MSF signals. GBW is only 0.79 MHz @ 3V Vdd, so I could only get a gain of... well not much at 60 kHz. For an opamp to work as an opamp it needs to have significant gain over the BW in use. I suppose I could use it open loop, but then it would act as a low pass filter with a high gain and a very low corner frequency. -- Rick |
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