Part Number: VFC110 Other Parts Discussed in Thread: VFC320 , VFC32 Hello,
I have a question regarding to VFC 110AP that is produced by Texas Instrument. In my research experiment, I've been using this for voltage-frequency sensor. So, I connect the input…
Hi Aki,
Thank you for reaching out. The competitor device requires an external clock source to operate and TI currently only offers asynchronous voltage-to-frequency converters such as the VFC320 with high linearity at 1MHz. Rather than utilizing a clock…
Hi Andrew,
There isn't a pin-for-pin LM2907 replacement that covers the wide temperature range you are requesting. There is a different V-to-F converter, the VFC320 that is available with wider specified temperature ranges. The VFC320 is quite different…
Hello Matteo,
Based on some benchmark tests, a response time of 1ms is possible. However, these results were inconsistent and varied upon different tests and devices. Because of this, one of the devices on our VFC product line may be more suitable to…
Hi Gage,
You indicate that you had no luck with the LM2907-N minimum component tachometer circuit. Did you find that to be the case over the entire RPM range of your application, or just in the range of 50,000 RPM? All indications in the LM2907-N datasheet…
Hello James,
Please see the TI.com cross reference tool located here http://www.ti.com/sitesearch/docs/crossreferencesearch.tsp
It shows the following devices as functionally equivalent devices (not pin/package compatible).
All manufacturers
Analog…
Hi,
Take a look at the VFC32, VFC320 and VFC110 voltage-to-frequency converters. They can be configured for frequency-to-voltage conversion (F-V):
http://www.ti.com/lit/ds/symlink/vfc32.pdf
http://www.ti.com/lit/ds/symlink/vfc320.pdf
http://www.ti.com…
Other Parts Discussed in Thread: VFC320 , VFC32 , LM331 I have a circuit that produces square wave 50% duty cycle of frequency range 1-10Khz , 3.4v peak-to-peak signal. I need to convert this to a pure DC signal ranging from 0-3.4 v corresponding to the input…
Terry,
Yes, both the VFC32 and VFC320 require dual (+/-) power supplies. The VFC320 is higher performance and is a different chip design.
Regards, Bruce.
Hello Dongkyu,
First, I would like to direct you to a TI (Burr-Brown) applications bulletin (sbva005) that provides detailed information about applying a VFC, such as the VFC320, in frequency-to-voltage conversion (F-to-V). The information in the bulletin…