https://e2e.ti.com/support/amplifiers-group/amplifiers/Find answers, share knowledge, solve problems with fellow engineers.en-USTelligent Community 13https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1655759/lmv324-discrepancies-found-in-the-body-marking-forma-and-x-ray-patternTue, 16 Jun 2026 10:04:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:e5a7259f-599c-4e48-8e8d-8a1ee3934f05NURUL BINTI BORHANODINPart Number: LMV324 From Subject Received Nur Hazirah Abdul Rahman RE: Urgent Clarification Required – LMV324MTX/NOPB Marking & Date Code Discrepancy 5:45 PM RE_ Urgent Clarification Required – LMV324MTX_NOPB Marking & Date Code Discrepancy.msg Hi Support Team We require the manufacturer’s update regarding the LMV324MTX/NOPB discrepancies found in the body marking forma and X-ray pattern (attached) , which have caused test failures during our production testing.lmv324https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1655682/lmp7721maevalmf_nopb-lmp7721-evm-wiring-for-0-5v-ion-selective-electrode-single-supply/6384010Tue, 16 Jun 2026 08:23:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:d5bce960-a606-4acf-91c7-fb5c1dce6423user4637774In a non-inverting summing amplifier, when R2 = R4 and R1 = R8, the circuit performs direct summation. Will this configuration affect the electrode?https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1655703/ina240-technical-clarification-on-ina240-usage-across-hv-lv-isolation-boundary-in-ev-dc-dc-converterTue, 16 Jun 2026 08:04:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:f0ae4a94-6a4c-4f63-ae61-221356868dafprabhu kPart Number: INA240 Dear TI Applications Team, We are evaluating a current-sensing architecture for a high-voltage EV DC-DC converter and would appreciate your technical guidance. System Details: Topology: Two-phase interleaved synchronous buck converter Input Voltage: 800 VDC to 2000 VDC traction battery Output Voltage: 650 VDC/46A Output Power: 30 kW/ 47kW peak Converter switching Freq: 50KHZ Control Supply: 12 V auxiliary battery with MCU and control electronics Current Measurement Location: Shunt resistor in the HV battery negative return path Current Sensing configuration Proposal: Pl find image below, INA240 powered from the LV / 5V with LV ground. INA240 input sensing pins connected across the low side Shunt resistor in the HV battery negative return path HV and LV domains are intended to remain galvanically isolated We would like clarification on the following points: Is it acceptable to use INA240 in this architecture when the shunt is located in the HV domain and the amplifier is referenced to the LV domain? If, HV− and LV Ground are galvanically isolated, how should the common-mode voltage between these domains be evaluated? Can parasitic capacitances, EMI filter components, insulation-monitoring circuits, or other coupling mechanisms cause significant common-mode voltage between HV− and LV Ground? Does connecting a non-isolated current-sense amplifier across the HV/LV isolation boundary compromise the intended isolation architecture? Are there TI application notes or reference designs discussing current sensing in isolated EV high-voltage systems and the impact of floating HV battery domains on common-mode voltage? Thank you for your support. Best Regards, Prabhu KHybridelectric & powertrain systemsINA240https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1655507/ths4031-ths4031idgnr/6383981Tue, 16 Jun 2026 07:59:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:a2f1c4ab-0e2c-4b91-ad5e-d42a462f7156ace jojoMouser has stock available. Here is their contact information: +85259975614. Please contact them privately to estimate and confirm which year's stock you need. Hope this helps.https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1654842/opa2187-offset-voltage-varies-non-linearly-with-input-common-mode-voltage-within-the-specification/6383977Tue, 16 Jun 2026 07:57:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:6b6ea2cb-a88c-4266-a88a-8af846d7d374Shinichi InoueHi Chris, Thank you for your reply. I sent additional questions to private message. Could you please see and advise? I appreciate your great help and cooperation. Best regards, Shinichihttps://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1655608/lmc7211-n-difference-between-lmc7211bim5-nopb-and-lmc7211bim5x-nopb/6383975Tue, 16 Jun 2026 07:56:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:5be8bf63-193c-4cf7-82ce-a9d3f15afb67Wei De HengHi Clemens, Thank you for the prompt reply on the questionhttps://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1655592/tle2064-tle2064idr-part-marking-pcn-and-part-performance-question/6383971Tue, 16 Jun 2026 07:53:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:6a4e7280-d3d3-4c39-b337-c7afc4db2867Clemens LadischThe Revision History (section 9 of the datasheet) lists quite a lot of changes …https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1655608/lmc7211-n-difference-between-lmc7211bim5-nopb-and-lmc7211bim5x-nopb/6383967Tue, 16 Jun 2026 07:49:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:638868d3-30a0-4423-98d4-b804012a6b4cClemens LadischIt's the same chips packaged on a small or large reel.https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1655561/lmv358-we-are-experiencing-a-high-failure-rate-with-the-component-lmv358mmx-nopb/6383959Tue, 16 Jun 2026 07:46:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:9d514b56-18dd-4f1b-88ba-a50624f44096Clemens LadischThe guaranteed datasheet limits of these devices are the same; it is likely that your circuit tries to exceed them. As a quick fix, try a CMOS opamp (LM358LV‍IDGKR or LMV358A‍IDGKT) or an opamp with rail-to-rail inputs (TLV9002‍IDGKR).https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1655668/ina228-q1-ina228-pcb-layout-review/6383942Tue, 16 Jun 2026 07:34:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:48067e54-d40f-401c-9ebb-0bcbd9371169wujun lihttps://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1655668/ina228-q1-ina228-pcb-layout-review/6383937Tue, 16 Jun 2026 07:32:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:80c33b26-7e31-4047-9b01-53f638bf4d40wujun li...https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1655682/lmp7721maevalmf_nopb-lmp7721-evm-wiring-for-0-5v-ion-selective-electrode-single-supplyTue, 16 Jun 2026 07:30:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:fd6d8afa-d37a-40d5-b40a-6de78480e99euser4637774Part Number: LMP7721MAEVALMF_NOPB Other Parts Discussed in Thread: LMP7721 We have purchased TI’s LMP7721 Multi-Function Evaluation Board. Without modifying the original board layout, I wired 5V to the V+ terminal and directly shorted GND to V-. Is this setup safe to use? We are measuring the output voltage of an ion-selective combination electrode with a BNC interface — I’ve already soldered the included BNC receptacle onto the board. The electrode’s output voltage ranges from -0.5V to +0.5V. What is the correct wiring scheme for the evaluation board?LMP7721MAEVALMF_NOPBLMP7721Medical & healthcarehttps://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1655668/ina228-q1-ina228-pcb-layout-reviewTue, 16 Jun 2026 07:11:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:323b6efd-f9a5-497d-bddc-e8f56691b6b8wujun liPart Number: INA228-Q1 Other Parts Discussed in Thread: INA228 Hi Team, When I conducted a low-range test using INA228, the actual test reading was 8mA for a current of 0.36mA. I have confirmed that there are no issues with the schematic or the RSHUNT resistor. Could you please help me check if there are any issues with the PCB Layout?INA228-Q1INA228Test & Measurementhttps://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1655664/ina700-need-better-alternate-with-higher-vol-for-ina700aywfrTue, 16 Jun 2026 07:00:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:57434df0-2f06-4d48-8b0e-cd3c3a47b773Aswin SPart Number: INA700 We are currently using the INA700AYWFR power monitor and the TCA9517ADGKR I²C repeater in our design. However, we have identified a voltage compatibility issue between these devices. Specifically, the VOL of the TCA9517ADGKR is 0.6 V, while the VIL of the INA700AYWFR is 0.4 V, resulting in a negative noise margin of 0.2 V. This mismatch raises concerns regarding reliable logic-level recognition on the I²C bus. We would like to request recommendations for alternative components—either a compatible power monitor or an I²C repeater—that meet the required voltage-level specifications and ensure proper interoperability without violating the voltage compatibility marginINA700https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1654999/tas6684-q1-maximum-power-output-of-tas6684-q1/6383739Tue, 16 Jun 2026 05:16:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:4a6a498a-5a29-41b1-b9a6-62d0103d711dAdarsh MadhusoodananHi Shadow Thanks. Could you please confirm whether, at a 14.4 V PVDD RMS , the output power would be limited to approximately 30 W per channel without clipping ? In that case, am I correct in understanding that 45 W per channel cannot be achieved without clipping at 14.4 V and would require a higher supply voltage ?\ Regards, Adarshhttps://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1655608/lmc7211-n-difference-between-lmc7211bim5-nopb-and-lmc7211bim5x-nopbTue, 16 Jun 2026 02:36:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:112fe3dc-4e33-4ab9-b1ed-fce59f21e85eWei De HengPart Number: LMC7211-N Hi, I would like to ask what are the differences in specifications between LMC7211BIM5/NOPB and LMC7211BIM5X/NOPB? Thank you.LMC7211-Nhttps://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1650535/ina180-ina180-with-inductor-dcr-current-sensing/6383593Tue, 16 Jun 2026 02:04:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:8ed41e1c-e832-40ea-ab69-8a88e1f32073Savit tipprechaActually for this sense we just need dc level information for monitoring propose.https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1654999/tas6684-q1-maximum-power-output-of-tas6684-q1/6383540Tue, 16 Jun 2026 00:56:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:a0a3e773-58a4-40bd-b5e9-aa1478b61a7eShadow HeHi Adarsh Yes, could use this curve. 1%THD is slightly clipping, and 10% THD is serious clipping.https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1655530/opa211-ht-e2e-engineer-tech-stopped-responding-to-my-text-despite-i-announced-that-my-issue-has-not-been-resolved/6383499Mon, 15 Jun 2026 23:51:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:52755407-cb94-4be4-9b1b-f64476a06574Ignacio Vazquez Lam1Hi Nader, Were you able to adjust the circuit to the recommendations highlighted by Ron? Offset voltage seen at the output is caused by many factors, many of the ones already mentioned in the previous thread. These are not trivial measurements so their could be many reasons you are seeing such a large error. Best Regards, Ignaciohttps://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1655592/tle2064-tle2064idr-part-marking-pcn-and-part-performance-questionMon, 15 Jun 2026 22:51:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:e4e1a934-5b15-4733-8f1a-150f9c83f894Landon OglesbyPart Number: TLE2064 My company has products that have been using the TLE2064ID component for over a decade and our suppliers are likely using the TLE2064IDR at this point. We are using the TLE2064ID componentas a Schmitt trigger / threshold comparator with output clamping to control a mosfet gate. This year, we have, all of a sudden, a lot of over 50 units that are failing our standard testing identically. This number does not include the number of untested materials with our supplier. The fault has been isolated to improper TLE2064IDR output. Specifically, all materials failing our standard functional test have the following part marking: TI 51CKJ6K TLE2064I I inspected other older materials and components with the following marking (among other markings) are not causing our functional test to fail: TI 38C0KDT TLE2064I Could you please explain to me all the details portrayed by "51CKJ6K" and "38C0KDT"? It is important to me to understand the root cause of this sudden fallout centered around this TLE2064ID component Although PCN#202311300041.1 states "No changes to form, fit, or function", Do you think the changes made to your Assembly location, Assembly process, Die, and Wafers in the PCN affects output offset or output stage drive shift? I am seeing a change of 400mV between the two components and all I can see is that the part marking is different and significant changes were recently made on the PCN around the same time we are noticing performance differences. Thank you in advance for your responseTLE2064