ADC Spikes on MCP391X (NMP)
Im facing some spikes with this the ADC. After a random amount of seconds i register some spikes with it... I based my board on the EVM, was carefull on ground loops... Anyone facing this problem or...
View Article4-20mA current loop Designing for multiple Receivers (snaca43)
Hi As I am new to 4-20mA areaHow can I design a system that would allow me to put multiple receivers on a single 4-20mA current loop?Is HART protocol is suitable for multi-drop communications over...
View ArticleMCP16251 Voltage Issues (DuarteDias)
Hello to all, I am using the MCP16251 step-up voltage regulator to increase the voltage from a 3.7V (980mAh) Lithium Polymer battery to 5V. I am using the same schematic provide in the MCP16251...
View ArticleMCP39F511 Power-Monitor Auto Calibrate not working - logged steps attached...
OK, I have a MCP39F511, and I'm trying to use the auto calibration commands, yet my device is still not calculating the right results. I have attached the log stream of the Arduino "Writing" and the...
View ArticleDoes MCP3002 need an input buffer op amp to read from pots and sensors? (GBTech)
I am wanting to use the MCP3002 ADC in my project. The data sheet recommends putting an op amp on the analog input. I understand the the performance can be affected by varying input impedance. But if I...
View ArticleMicrochip MCP25625 Simulink Block (jackn)
Hi, I want to buy ZedBoard, because i have to use it in simulink environment (in ARM mode and FPGA mode) with AXI4. I need to comunicate outside with CAN (Controller Area Network). I found a Pmode CAN...
View ArticleMIC4609 (MTRGURU)
Hello All I have designed an evaluation board with various modules. On one of the modules for the mosfet drivers I am using the MIC4609 IC. Now the IC seems to work OK until I put any sort of load on...
View ArticleE2PROMAPP.exe utility has no USB2512B listed (alps)
Hi, I need to configure USB2512B, but it is not listed in E2PROMAPP.exe utility. The nearest ICs are 2512A and 2513b-36pins. I thought to use 2513b-36pins.How can I solve this problem? Thanks!..
View ArticleHelp Calibrating MCP39F521 (sridhar_rajagopal)
Hi, I have a custom board with the MCP39F521, and it mirrors the MCP39F521 Demonstration Board architecture. I'm trying to calibrate the chip based on the instructions in the datasheet - 1. Temperature...
View Articlecalibration of mcp39f511. (ashutoshpradhan)
Hi, I have a custom board with the MCP39F511 . I'm trying to calibrate the chip according to the instructions in the datasheet - 1. Temperature Calibration (optional) 2. Line Frequency Calibration...
View Article3DTouchPad doesn't find device (Mark81)
I hope I'm writing into the right section of the forum.I'm running Rasbian Stretch Lite on a Raspberry Pi 3B+ and I have a MTCH6303 connected: usb 1-1.3: new full-speed USB device number 10 using...
View ArticleDo I need an op amp on the input of the MCP3002 ADC? (GBTech)
Hello, I am wanting to use the MCP3002 ADC for some simple projects. The data sheet recommends putting an op amp on the input. I want to read the outputs of some sensors and variable pots. Is it...
View ArticleMCP4726 - INL (corvanrij)
Hello all, I am new to this forum so I hope I am posting this in the right section. For an upcoming project (expecting sales volume 1-5k annually) we are planning to use the MCP4726 12 bit DAC. On page...
View ArticleHow to enable serialized LVDS mode for MCP37231/21-200 ADC (dahand)
I have a custom board with an MCP37231/21-200 ADC connected to an Altera Cyclone V FPGA. I'm attempting to configure the ADC to run in serialized LVDS mode as in Fig 2-4 of the datasheet. I...
View ArticleTouch keypad design using MTCH102/5/8 on a metal surface (electrotwelve)
I’m planning to build a keypad for an industrial equipment that will most likely be encased in a powder coated or painted metal box - either aluminium or steel. Will the keypad work if I stick the PCB...
View ArticleMCP23008 GPIO Extender getting super hot (rava)
Hi everyone, I am using the MCP23008 (I2C to GPIO extender) to drive 8 relays. I attached the circuit at each output of the MCP23008, the relay coil is between 12V and O4A. It is the typical circuit I...
View ArticleHV2601 Analog Switch (kr narendra)
Hello everyone,We use a HV2601 from microchip that works on the recommended +100v &-100v supply.Can it be used with +75v and -75V ?.Do help us.Regards...
View ArticleMCP3428 Are I2C IO pins 5-V tolerant? (Matt Bruensteiner)
For future searches, this question probably applies to MCP3426, MCP3427, and MCP3428. The datasheet for these parts gives an absolute maximum for "all inputs and outputs" of Vdd + 0.4 V. A spec like...
View ArticleATM90E32AS Energy Meter Calibration (REMILELIJOUR)
Good morning, We have been using the ATM90E32AS on a series of 50 boards, made a couple of years ago, all behaving the same way with no variation on the measurements, meaning all components were fitted...
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