https://e2e.ti.com/support/data-converters-group/data-converters/<p style="display:none;">blank</p>en-USTelligent Community 13https://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1656559/dac39rfs10ef-pll-to-use-for-dac39rfs10ef-subclass0-system/6393473Wed, 24 Jun 2026 10:55:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:e6449b61-0633-4a1c-a567-2d28d783cf02Adrian GeigerHi All, any update on this? thanks, Adrianhttps://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1655436/ads7128-how-to-convert-hardware-rms-register-count-back-to-ac-voltage-for-a-level-shifted-input/6393468Wed, 24 Jun 2026 10:49:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:dfd8a25f-20f6-46b1-b043-81a64ff59c20Prathamesh KulkarniDear Joel, As per your suggestion, I reviewed the ADS7x28 True Root-Mean-Square Module document and found that, since our input signal frequency is 50 Hz, the required ƒCYCLE for 65,535 samples should be 333.33 kSPS . I implemented this change in my code by setting the OPMODE register value to 0x23 . However, even after this modification, we are still observing RMS values in the range of 62,000 to 63,000 . One more point for clarification: As you mentioned above an expected value of approximately 19,900 codes . Is this value calculated based on Vpk-pk (1.518 Vac) or RMS voltage (1.073 Vrms) ? If calculated using the RMS voltage, the expected ADC code would be approximately 14,064 for 1.073 Vrms . I have attached a table showing the RMS values observed for the corresponding AC input voltages. I have also attached a text file containing multiple RMS measurement results captured during testing. In that file, you can find the register settings along with the corresponding MSB and LSB values. Additionally, I have attached the ADC circuit diagram, which shows how the VREF is generated. Note: DC subtraction is enabled in the current configuration. I would appreciate your feedback on these observations. Best regards, Prathamesh Input AC Voltage RMS CODE 360 62792-62842 380 62936-62997 400 63080-63153 420 63226-63299 440 63395-63473 e2e.ti.com/.../RMS-Results-Observed.txthttps://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1658094/afe20408-inquiry-regarding-ti-s-pa-controller-icsWed, 24 Jun 2026 09:12:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:47988066-d0b5-481e-87bf-e7688032ac88JH ShinPart Number: AFE20408 Other Parts Discussed in Thread: AMC7908 , Hello, My customer has a few questions regarding TI&#39;s PA controller ICs. Q1. Please explain the differences between AMC7908 and AFE20408. Q2. Do the AMC7908 and AFE20408 have a history of being applied in the field and mass-produced? Q3. What do the multicolored lines below mean? Q4. Could you possibly recommend ICs with similar features, such as 8 or more DACs, 4 or more AMUX inputs, and a built-in current sensor amplifier? Thank you.AMC7908AFE20408https://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1658083/ads5404-inquiry-regarding-the-difference-between-ads5404-and-ads54t04Wed, 24 Jun 2026 08:55:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:94201e4e-aae9-4669-b85e-45407878bd04JH ShinPart Number: ADS5404 Other Parts Discussed in Thread: ADS54T04 Hello, Could you explain the difference between the ADS5404 and the ADS54T04? Thank you.ADS5404ADS54T04https://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1658066/afe882h1-sleep-mode-currentWed, 24 Jun 2026 08:16:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:f3da5db5-a621-478e-b5f7-3f8667b7b2f6ANURAG LOKHANDEPart Number: AFE882H1 Hi, Datasheet mentioned: Low quiescent current: 180 &#181;A (typical) With no communication, we get 300uA current. Can we put AFE chip to sleep through software. OR It(180uA/300uA) is what we can achieve lowest. /AnuragIndustrial AutomationAFE882H1https://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1658049/ads124s08-ads124s18-cannot-access-to-secure-resourcesWed, 24 Jun 2026 07:53:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:449800aa-439f-4943-91e2-20f76347e8baMuhammad AbdullahOther Parts Discussed in Thread: ADS124S18 What is the expected release date for ADS124S18 and How can we access to example codes related to ADS124S18?ADS124S18power deliveryADS124S08https://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1658045/ads1299eegfe-pdk-ads1299eegfe-pdk-softwareWed, 24 Jun 2026 07:45:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:320886d8-8370-4b8b-bb99-47de2fa0c30edapeng zhangPart Number: ADS1299EEGFE-PDK The ADS1299EEGFE-PDK software tester can acquire signals, but the acquired human body signal is a straight line. It&#39;s unclear if this is a configuration issue. We imported the configuration file with 8 channels (INxN) as input signals, SRB2 as the reference signal, and BIAS as the bias electrode, and retested to rule out configuration errors.ADS1299EEGFE-PDKWearables (non-medical)https://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1658027/ads122s14evm-pdk-connection-and-register-settings-for-thermocoupleWed, 24 Jun 2026 07:05:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:4633e221-e291-49b1-a85a-f59b6fd92c76ttdPart Number: ADS122S14EVM-PDK Dear Technical Support Team, I have related questions about following previous post. ADS122S14EVM-PDK: Register settings for 3-wire RTD - Data converters forum - Data converters - TI E2E support forums I&#39;d like to use thermocouple with EVM. Q1 Figure 2-6 dosen&#39;t have clear connections with TC. Is my understanding correct for adding red? Q2 According to schematic, R25 and R29 are DNP. Is it OK to use only R25 and no pull down(R29) like Figure 2-6? Q3 Userguide describes R25=10Mohm. Can I use 1Mohm instead which I have ? Q4 Could you share the register settings for TC with GUI I should set? Are there any different settings between 1Mohm and 10Mohm? Best Regards, ttdADS122S14EVM-PDKTest &amp; Measurementhttps://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1655436/ads7128-how-to-convert-hardware-rms-register-count-back-to-ac-voltage-for-a-level-shifted-input/6393082Wed, 24 Jun 2026 06:07:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:a6d91f48-d8b8-443c-8af0-cd4cd771221dPrathamesh KulkarniDear Joel, Thank you for your detailed response. As per my understanding Vref is 5v ( Avdd is also 5v, I am not sure if both are same thing or not). Regarding the clocking configuration, I reviewed our current settings where CLK_DIV[3:0] = 0000b and OSC_SEL = 0 . Based on the application note you shared, to properly measure an input frequency below 80 Hz using 65,536 RMS samples, the conversion rate should be targeted at ƒCYCLE = 333.3 kHz . Our current configuration deviates from this guideline, which likely explains the sampling window issues we are seeing. To fix this, I am going to update the clock divider to CLK_DIV[3:0] = 0011b to bring the internal clock speed down to the recommended specification. I will run a series of tests with this value and report back on whether it stabilizes our readings. For reference, I have attached our firmware source code along with a copy of our raw observation log. I have also attached a clean oscilloscope capture of the input waveform at ADC Channel 0 under 400 V AC load. Could you please verify if the implementation guidelines detailed in the following TI E2E article match our use case? Reference Link: FAQ] ADS7128: Using the RMS module - Data converters forum - Data converters - TI E2E support forums Please let me know if you need any additional diagnostic logs or register dumps from our end. Best regards, Prathamesh Kulkarni Code : S16 s16ADS7128_GetChannelRMS(const C_ADS7128_DEVICE* const pcDev, E_ADS7128_CHAN eChannel, U16 *pu16Data) { //******************************** Function scope data ************************************* S16 s16Result = eADS7128_RET_ERROR; U8 u8RmsCfgVal = 0U; //U8 rmscfgvalafterread; U8 u8Status = 0U; U8 u8Lsb = 0U; U8 u8Msb = 0U; //*********************************** Function code **************************************** // Direct parameters safety tracking check if ((pcDev != KB_NULL_PTR) &amp;&amp; (pu16Data != KB_NULL_PTR) &amp;&amp; ((U8)eChannel 1 toggle rule) // --------------------------------------------------------------------------------- // First ensure it is completely cleared out s16Result = s16ADS7128_SingleRegWrite(pcDev, ADS7128_GENERAL_CFG_ADDR, 0x20U); // STATS_EN only if (s16Result != eADS7128_RET_OK) return s16Result; // Drive RMS_EN high (Bit 7 = 1) -&gt; 0x20 | 0x80 = 0xA0 s16Result = s16ADS7128_SingleRegWrite(pcDev, ADS7128_GENERAL_CFG_ADDR, 0xA0U); if (s16Result != eADS7128_RET_OK) return s16Result; // --------------------------------------------------------------------------------- // STEP 4: Set up Sequencer Topology &amp; Kick-off Conversions // --------------------------------------------------------------------------------- // 4a. Stop any ongoing conversion framework before changing routing masks s16Result = s16ADS7128_SingleRegWrite(pcDev, ADS7128_SEQUENCE_CFG_ADDR, 0x00U); // Idle Mode if (s16Result != eADS7128_RET_OK) return s16Result; // 4b. Clear GPIO pin behavior configurations to prevent functional cross-talk s16Result = s16ADS7128_SingleRegWrite(pcDev, ADS7128_PIN_CFG_ADDR, 0x00U); if (s16Result != eADS7128_RET_OK) return s16Result; // 4c. Enable target channel as the ONLY monitored analog node in the sequence string s16Result = s16ADS7128_SingleRegWrite(pcDev, ADS7128_AUTO_SEQ_CH_SEL_ADDR, (U8)(1U 0x20 s16Result = s16ADS7128_SingleRegWrite(pcDev, ADS7128_OPMODE_CFG_ADDR, 0x20U); if (s16Result != eADS7128_RET_OK) return s16Result; // 4f. Assert Sequence Processing Loop (SEQ_START = 1b) -&gt; 0x01 | 0x10 = 0x11 s16Result = s16ADS7128_SingleRegWrite(pcDev, ADS7128_SEQUENCE_CFG_ADDR, 0x11U); if (s16Result != eADS7128_RET_OK) return s16Result; // --------------------------------------------------------------------------------- // STEP 5: Poll for Math Accumulation Block Completion Flag // --------------------------------------------------------------------------------- do { s16Result = s16ADS7128_SingleRegRead(pcDev, ADS7128_SYSTEM_STATUS_ADDR, &amp;u8Status); if (s16Result != eADS7128_RET_OK) { // Safety rollback recovery block out of infinite loop on physical bus error (void)s16ADS7128_SingleRegWrite(pcDev, ADS7128_SEQUENCE_CFG_ADDR, 0x01U); (void)s16ADS7128_SingleRegWrite(pcDev, ADS7128_GENERAL_CFG_ADDR, 0x20U); return s16Result; } } while ((u8Status &amp; ADS7128_RMS_DONE_MASK) == 0U); // Check for Bit 4 (0x10) // 4g. Freeze internal continuous sampler frame execution (SEQ_START = 0) s16Result = s16ADS7128_SingleRegWrite(pcDev, ADS7128_SEQUENCE_CFG_ADDR, 0x01U); if (s16Result != eADS7128_RET_OK) return s16Result; // --------------------------------------------------------------------------------- // STEP 6: Extract metrics, clear tracking status, disable RMS Module context // --------------------------------------------------------------------------------- // Read out raw calculating steps sequentially from internal registers s16Result = s16ADS7128_SingleRegRead(pcDev, RMS_LSB_ADDRESS, &amp;u8Lsb); if (s16Result != eADS7128_RET_OK) return s16Result; printf(&quot; RMS Value LSB : %d\n&quot;, u8Lsb); s16Result = s16ADS7128_SingleRegRead(pcDev, RMS_MSB_ADDRESS, &amp;u8Msb); if (s16Result != eADS7128_RET_OK) return s16Result; printf(&quot; RMS Value MSB : %d\n&quot;, u8Msb); // Combine to 16-bit payload output pointer assignment *pu16Data = (U16)(((U16)u8Msb &lt;&lt; 8U) | (U16)u8Lsb); // Clear the completion bit by writing a 1 to it (0x10) s16Result = s16ADS7128_SingleRegWrite(pcDev, ADS7128_SYSTEM_STATUS_ADDR, 0x10U); if (s16Result != eADS7128_RET_OK) return s16Result; // Disable the RMS module block to save power and reset silicon state (RMS_EN = 0) s16Result = s16ADS7128_SingleRegWrite(pcDev, ADS7128_GENERAL_CFG_ADDR, 0x20U); if (s16Result != eADS7128_RET_OK) return s16Result; s16Result = eADS7128_RET_OK; } return s16Result; } Note: I have remove printf and read register part from code for your better understanding.https://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1657997/afe4960p-spi-example-code-for-the-afe4960pWed, 24 Jun 2026 05:58:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:68155649-3fcc-43cf-a645-8d391b66bad1honglin liuPart Number: AFE4960P We are using the CC340R53 to connect to the AFE4960P for PPG data acquisition via SPI, but the connection is not working. Could you provide any SPI example code for the AFE4960P?Medical &amp; healthcareAFE4960Phttps://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1656452/dac3151-inquiry-regarding-dac3100-output-noise/6393033Wed, 24 Jun 2026 05:22:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:9a6046a9-1e9c-4dd2-8f41-fca296a56c3cshigeyuki adachiI would greatly appreciate it if anyone has any information on this. Best regardshttps://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1657986/dac53608evm-dac53608evm-programming-for-waveform-generationWed, 24 Jun 2026 05:18:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:121fcbf5-ee53-4cf4-b293-862ea282fb17Chandan ThakurPart Number: DAC53608EVM Other Parts Discussed in Thread: BOOSTXL-DAC-PORT , MSP-EXP432E401Y , I have the following modules: DAC53608EVM, BOOSTXL-DAC-PORT &amp; MSP-EXP432E401Y Launchpad. My aim is to generate a sine/distorted sine wave using DAC outputs. For the same, I tried 2 methods: 1. Using TI GUI , there is a scripting feature where I wrote a block code first to write the 8 DAC outputs, however I received a prompt that for using scripting feature &quot;SharedArrayBuffer&quot; needed to be enabled in the Chrome browser. I tried although, I found in newer versions of chrome this feature is discarded, thus I am stuck with the same. 2. The other method I tried was using Code Composer Studio (CCS) to write the DAC outputs , however, I2C is seem to be non communicating. I checked through oscilloscope on the SCL &amp; SDA pins, the pins are pulled high at 3.3V but no pulses, thus I am unable to write the DAC outputs. Kindly help me with either way, so that I can program DAC outputs to generate a Sine or distorted Sine wave. Also, if there is a way to upload a csv or hex file to achieve the same, then let me know. Thanks and regards ChandanBOOSTXL-DAC-PORTMSP-EXP432E401YDAC53608EVMTest &amp; Measurementhttps://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1657976/afe4432evm-request-for-schematic-review-custom-afe4432-board-connected-to-stm32Wed, 24 Jun 2026 04:52:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:4ffcfee3-4f91-4748-8ca1-e5baea312fc5Itzel AvilaPart Number: AFE4432EVM Other Parts Discussed in Thread: AFE4432 Hello TI Support Team, I am designing a custom board based on the AFE4432 hardware reference/EVM architecture , and I would like to request a schematic-level review before PCB fabrication. As an initial validation step, I already tested the AFE4432 EVM connected through a TXU level-translator EVM to an STM32 board , and SPI communication with the AFE4432 worked correctly. My custom board is intended to integrate this same validated architecture into a smaller custom design. I would appreciate your confirmation on the following points. 1. LED and photodiode wiring 2. AFE4432 power rails: RX_SUP and TX_SUP 3. SPI interface and level translation 4. USB-C and ESD protection 5. General schematic/layout review request My goal is to confirm that this custom implementation follows the AFE4432 reference design closely enough before moving to final PCB layout/fabrication. Thank you so much for your help. Best regards, Itzel AvilaAFE4432EVMMedical &amp; healthcareAFE4432https://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1649311/afe7920evm-request-for-access-to-afe7920evm-design-resources/6392942Wed, 24 Jun 2026 03:38:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:37e2dd21-5bf9-43cc-a581-abae3ffa9344Minho ChoiThe issue has not been resolved yet. Access has been enabled for TI204C-IP, but I still cannot access AFE79XX-WI-DESIGN. Please enable access for AFE79XX-WI-DESIGN as well.https://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1657953/adc3641-clk-input-range-and-sampling-rate-rangeWed, 24 Jun 2026 03:14:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:7d821d90-f245-4c2a-a69c-5e4699c2b2d2JAE-HONG LIMPart Number: ADC3641 hello As shown in the table below, the sampling speed varies for each part. However, the input frequency range is different. If I use a high input frequency while using only a low sampling rate, will there be any problems? ADC3641 20MHz CLK Input freq. -&gt; 10MSPS SamplingIndustrial AutomationADC3641https://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1657377/amc0306m05-q1-amc0306m05-q1-get-maximum-and-minimum-wrong-current-only-power-on-auxiliary-power/6392818Wed, 24 Jun 2026 01:23:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:60969db4-d157-484b-9391-d2497e661027Alexander SmithHi Tianmei, Looks like the device is initializing OK. I would look for the timeout trigger function in your oscilloscope, then trigger on a data timeout. Either low or high since you have one of each in your output waveform. You can test the trigger by toggling your supply voltage and make sure you catch it OK. Once we can start to reliably catch this behavior, then we can start to see if something is happening to the power supply or clock input which could help explain this issue. Do you know anything else in your application turning on or off around these time stamps? Does it happen every time you initialize the system?https://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1657922/dac7612-dac7612ub-2k5-consulting-markingWed, 24 Jun 2026 00:53:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:cfb923d2-819e-4ddc-8486-c1efa0ef6ae2yingjiao LIPart Number: DAC7612 Dear TI Support Team The physical marking of this product is shown in the following picture. Could you please help confirm if it is correct and whether it meets your company&#39;s specification requirements? Thank you.Industrial AutomationDAC7612https://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1657381/ads125h18-connecting-resp-to-refout-for-single-supply-operation-with-bipolar-inputs/6392721Tue, 23 Jun 2026 22:55:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:6e711d91-134d-4d6e-b2a4-2a21743c64e6Bryan Lizon86Hi Leo Ahlin, Yes all measurements are effectively differential through the resistor dividers, it&#39;s just that the &quot;single-ended&quot; measurements are always with respect to the RESN resistor divider. Again, note that the RESP / RESN pins just set the bias point of the resistor divider, so changing the voltage on these pins does not change how the input signal is scaled, it just shifts the min and max absolute input voltage. Even if the voltage on RESP fluctuates this should be seen approximately equally on all pins and cancel out. I am not sure you need to worry about it so much, but maybe I am misunderstanding what you are actually trying to accomplish -Bryanhttps://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1657222/ads8689-io-max-for-voh-vol-of-sdo/6392719Tue, 23 Jun 2026 22:49:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:7652bd0d-008f-4466-b872-2778a96b3bacYolanda GonzalezHello ttd, Those are the max values &#177;500μA For driving a photocoupler or something that requires higher current to drive, I would agree with the buffer/driver addition. We typically recommend a resistor in series, something like a 22Ω or 33 Ω, but if a capacitor is preferred I would recommend something small, ideally something less than 22pF. Best regards, Yolandahttps://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/1655436/ads7128-how-to-convert-hardware-rms-register-count-back-to-ac-voltage-for-a-level-shifted-input/6392717Tue, 23 Jun 2026 22:47:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:c9db6943-d0f8-4adb-888d-0cc6447245e1Joel MerazHi Prathamesh, My apologies for the delayed response to this thread. I am now reviewing this. I am missing one parameter to validate the RMS readings. What is the reference voltage to the ADC, and how is it being generated and supplied? I need this to calculate the full-scale input range of the ADC. The amplitude (Vpk) of the signal is 1.518V AC, which turns into 1.073Vrms. Assuming a 5V reference voltage, and 16-bit output, I would expect a result near 19,900 codes with RMS_DC_SUB enabled. Are you able to share the results of the RMS_MSB and RMS_LSB registers? Additionally, what is the frequency of the input signal being measured? If the ADC sampling rate is not being adjusted through the CLK_DIV and OSC_SEL register fields, it is possible the observation window is not long enough to compute an accurate result given the AC signal frequency. Quickly review the below document, and please let me know if you find any immediate discrepancies between your configuration and what is recommended in the document. https://www.ti.com/lit/ab/sbaa399/sbaa399.pdf Regards, Joel