Part Number:INA2128
Hi,
Could you tell me about INA2128 supply current?
I want to know the maximum current consumption to choose the power supply for INA2128.
The following contents are described in the data sheet.
May I consider 1.5mA the worst case?
Use condition is
Supply voltage : ±6V
Gain : 1.4
Input voltage : ±2.5V
Could you give me your advice?
Best regards,
Yusuke
Part Number:THS3062
Hi TI expert,
The schematic I'm talking about is as Fig1.
My PCB is 4-layer. The trace,which is 10mil wide, is on top layer and about 50mm . Below is ground plane, power plane and bottom layer. I've removed all copper on gorund plane under this 50mm trace due to parasitic capacitances issue. Due to the connectivity of my power plane, I've removed most of the copper on power plane under this trace except the yellow-marked region, about 6mm long. I wonder if such a 6mm unetched copper area will degrade the performance severely?
Fig1
Regards
Yatao
Looking for op-amp,as a replacement to ADI,p/n AD8691AUJZ-REEL7
Main requirements:
1. Voffset = 3 mV MAX
2. Ib = 260nA MAX
3. Slew Rate = 2.2V/µs and above
4. Gain = 3Mhz and above
5 Vcc=3.3V
6. Low cost
Part Number:AMC1302-Q1
Hi,
may I ask what the sample rate of the internal delta.sigma ADC of the AMC1302-Q1 is?
Thank you
Christian
I am looking for a hight side current sense amplifier with a 500V common mode voltage. Most of the parts are less than 80V.
My main concern is measuring high resistance ( >2Mohms). I am using a DC/DC converter to produce a 500V for isolation testing.
I need to measure the current and the voltage to estimate the resistance.
Can you please advice which part will be suitable?
Thanks
Part Number:OPA2333-HT
I would like to calculate the unity gain closed loop output impedance at low frequencies (less than 10Hz). The data sheet seems to only have open loop output impedance for one frequency (350 KHz). Is it possible to provide a open loop vs frequency output impedance graph?
Kind Regards
Martin
Part Number:THS3062
Hi TI expert,
I'm instructed to use microstrip technology to handle long-distance connections between high-speed op amps. That is, use ground fills on signal layers and leave the ground copper intact below the corresponding traces.
Then I need to drive 4 op amps by one op amp, as shown below.
I wonder if this configuration is correct for the microstrip application here? Or 4 isolation resistors for each op, not single one, are needed for op2 through op5?
Regards
Yatao
Part Number:OPA4342
Hi,
Please find the attached schematic of OPA4342EA/250 amplifier for ADC lines CC3220MODSF12MOBR Wi-Fi module.
Kindly review the schematics and share your comments to improve the design.
Regards,
Manjunath
Hardware Design Engineer
Part Number:TLV271
Hi,
I'm using TLV271 Op-Amp as a transimpedence amplifier. Connecting a photodiode (current source) to convert current to voltage. There i'm successful.
But my problem is, I made a hand calculation on noise error. I'm getting a peak to peak noise as 18v. This is a MISTAKE. I have attached the calculation excel sheet. Please identify where i have done the mistake.
(Please visit the site to view this file)
Part Number:OPA2313
TIDU675 The circuit diagram is shown in the figure.Does the bias voltage affect the current on the main road?How do you handle this bias voltage?
Part Number:INA128
Tool/software:TINA-TI or Spice Models
Hi dear supporting team,
i have a problem with my circuit which you can see below. I already read that i can use the INA128 in single supply. My problem is that the INA128 don't gain my Signal from DMS like i expect and want it (gain = 100). After trying a couple of things and still no better result, i hope you can help me. Thanks a lot!
Part Number:AMC1311-Q1
Hi Team,
For AMC1311-Q1, I notice that the common-mode output voltage is1.44V, what is the defination of this? Does this mean zero input, the output drift?
Can I connect the negative output with GND, for this common-mode output voltgae would it influence the positive output into MCU?
Best Regards,
Gene
Part Number:LMH6881
Dear experts,
how much is the group delay from INxD to OUTx? Could you maybe provide a step response plot containing input and output signal?
Thank you in advance!
Part Number:TL3472
Dear all:
We have used TL3472 op amp to make frequency converter products. At present, it is found that 5 boards are damaged when TL3472 is powered on.The circuit diagram is as follows.
Under normal circumstances, when S1 is 0V, the first leg of TL3472 is also 0V.But now we have 5 plates, S1 is 0V, TL3472 first leg 5 v.After replacing TL3472, the first pin output 0V is normal.
Please help me check whether there are any defects in my schematic diagram.Or can you give me some Suggestions for change
Thank you!
Part Number:OPA843
Tool/software:TINA-TI or Spice Models
Hello;
I have a 1 photodiode and 1 Avalanche photodiode.
I have tried OPA857 before but I need to design new pcb for my application.
First I want to build TIA and second stage amplifier for 0-200mhz signal
For the Photodiode(FGA01-Thorlabs) I am unable to choose even though I almost memorize the Opamp specs.
First of all I am in between OPA656-OPA843-OPA847- Opa381(I prefer msop package) and for second stage THS4504 Seems fine to me but I am not sure. After the second Stage I will use Microcontroller for Signal processing.
For the Avalanche Photodiode(G8931-10 Hamamatsu)
I though I can use same opamps but Still I am not sure. The bandwith is the same as photodiode. I also used Opa857 before for this application.
But I am open to any suggestion about my design.
The light I am trying to detect has really low illumination.
Thanks in advance.
Best regards
Part Number:DRV110EVM
In reply to Costin Cazana:
I'm using the DRV110EVM setup above with a TTL signal generator (1 Hz) into the Enable pin. I'm trying to drive a bank of six 12vdc solenoid valves (29 ohm each) connected in parallel (4.8 ohm to the DRV110). I can barely drive one valve with 14vdc supply. I tried using a Solid State Relay (SSR) but its turn-on and turn-off speed is too slow to effectively pass the PWM pulses.
What must I do to drive at least two or three of my solenoid valves? I have attached images of my setup. Please let me know if you cannot see them.
Is it possible to use a faster SSR to drive the bank of six valves?
Thanks for your help,
Ken
Part Number:LM2904
I'd like to use LM2904D with linear optocoupler. Please, see my circuit in attach. I need 12 mA output current (marked "IF" on the circuit) , temperature from minus 40 to plus 50 C. Can I set 12 mA output current for LM2904D?
TIA
Sincerely,
Vladimir Naumenkov
www.agat.by
(Please visit the site to view this file)(Please visit the site to view this file)
Part Number:INA169
Hello,
We have a few boards that use two INA169 chips per board. We seem to get different offset errors for each of the chips on the board, but they remain the same across the boards. For exampe, board 1 has chip1 and chip 2. Chip 1 on all the boards seems to have a similar voltage offset at low currents and chip 2 on all the boards seems to have a similar voltage offset at low currents, but the voltage offset of chip 1 and chip 2 is very different. Here is a schematic of what I am using:
From reading other forum posts I was expecting to have a maximum offset of 22mV (0.2mv x 1000uA/V x 110K), but in reality, I am seeing an offset of ~280mV on one of the ICs and ~124mV(and that is consistent across all the boards). We expect max peak current to be about 30A. Do you think we should just add an offset to our software that handles what we are seeing? What do you recommend?
Thanks,
Felipe
Part Number:LMP2234
I have a customer designing with the LMP2234. They are interested in measuring the input bias current for the part. Do we have any recommendations?
In addition, they are interested in additional ESD protection on the amplifier inputs. How will this affect the input impedance?
Thanks.