Forum Post: REF5030 - Current Source 20uA
Hi, The idea is to use the REF5030 to make a precision current source of 20uA to use with a NTC. Some data: Vcc = 3.3V Precision Current = 20uA. Questions: Can I use the REF5030 on this configuration?...
View ArticleForum Post: RE: REF5030 - Current Source 20uA
Bypass Cap (C1), Trim Cap(C2) and Vout Cap(C3)
View ArticleForum Post: RE: Connecting 4 3-wire RTD sensors in one ADS1248
Dear Mo, Thank you very much for your support! Indeed my design is very close with TIDU145 which includes a resistor in one of the input channels for hardware compensation. I was wondering for...
View ArticleForum Post: RE: Connecting 4 3-wire RTD sensors in one ADS1248
Dear Joseph, Thank you very much for your support! I was wondering about the use of the two compensation resistors from the very beginning of the design and your advice really helps me to decide about...
View ArticleForum Post: RE: Connecting 4 3-wire RTD sensors in one ADS1248
Nikos, Since it's in the TI design, I would leave them in for the time being. I'm just concerned that with digital currents, you might see more supply spiking. You can still test it to see if it poses...
View ArticleForum Post: DRV2605 Drive AC motor?
Hi Team, The customer uses DRV2605EVM-CT . DRV2605 can drive LRA motor and ERM motor. Q1: Are both LRA motor and ERM motor DC motor? Q2: Are the LRA motor and ERM motor driven through PWM controling?...
View ArticleForum Post: RE: DRV2605 Drive AC motor?
Hi Mickey, Q1: No. The ERM is a DC motor, whereas the LRA is drven with an AC signal (biphasic square pulses). Q2: Yes, both types of actuators can be driven with a PWM signal through the IN/TRIG pin....
View ArticleForum Post: RE: DRV2605 Drive AC motor?
Hi Leo, Thanks for your reply. Q1: You mean LAR is a AC motor,right? Q2: The customer wants to use DRV2605EVM-CT to drive his vibration motor. And the customer's vibration motor is driven by AC sine....
View ArticleForum Post: RE: Connecting 4 3-wire RTD sensors in one ADS1248
Dear Joseph, I wll keep it mind during the prototype testing. Thank you very much for yur support! Nikos
View ArticleForum Post: DRV2605LEVM-CT connect with Haptic control Console
Dears, Can I connect ' DRV2605LEVM-CT ' with laptop and Haptic control Console? When checking the schematic, only power pins of USB is connected Thank you
View ArticleForum Post: RE: Connecting 4 3-wire RTD sensors in one ADS1248
Hi Nikos, [quote user="Nikolaos Piliouras"]I am planning to use 1mA IDAC currents (taking into consideration the temperature range 0-50oC). For this reason in the upd2 schematic the REF resistor...
View ArticleForum Post: RE: DRV2605 Drive AC motor?
Hi Mickey, Q1: Yes, the LRA is an AC motor. However, the output of the DRV2605 is not a purely sinusoidal signal. It drives the LRA using biphasic square pulses at a center frequency equal to the...
View ArticleForum Post: RE: DRV2605LEVM-CT connect with Haptic control Console
Hi Hayden, In order to connect the DRV2605LEVM-CT to Haptics Control Console, you will need the DRV-USBCOM-EVM . When powering up the DRV2605LEVM-CT , the 5V LED (top left corner) should turn on. In...
View ArticleForum Post: RE: DRV2605 Drive AC motor?
Hi Mickey, If you want to drive a pure sine wave, the DRV2625 can do this in open loop mode at a set frequency.
View ArticleForum Post: RE: Connecting 4 3-wire RTD sensors in one ADS1248
Nikos, There are two things that I wanted to point out about Mo's comments. First, he is correct that you should watch the compliance of the output voltage of the IDAC current to AVDD. If you get to...
View ArticleForum Post: Does DRV2605L support Broadcast mode?
Hi team, Does DRV2605L support Broadcast mode? Thanks
View ArticleForum Post: RE: DRV2605 Drive AC motor?
Hi Kelly, Thanks for your reply. How to set the frequency in open loop? How much is the frequency when the customer wants to drive a pure sine wave?
View ArticleForum Post: RE: DRV2605 Drive AC motor?
Hi, Mickey: for open loop mode, DRV2605 needs an external PWM signal input, which the signal frequency should be 128 times of the frequency you want. DRV2605 cannot output pure sine wave.
View ArticleForum Post: RE: Does DRV2605L support Broadcast mode?
Hi, Daniel: may I know your use case? DRV2605L can respond to 0x58.
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