The REF2930AIDBZR is a Texas Instruments 3.0 V, 100 ppm\/\u00b0C, 50 \u00b5A CMOS series voltage reference in a 3-pin SOT-23 package. It features 1 mV dropout voltage, 25 mA output current, 2% initial accuracy, and stable operation with any capacitive load. The device operates from -40\u00b0C to +125\u00b0C.<\/p>\n
| Output Voltage<\/td>\n | 3.0 V (fixed)<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||
| Initial Accuracy<\/td>\n | 2%<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||
| Temperature Drift<\/td>\n | 100 ppm\/\u00b0C (max)<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||
| Dropout Voltage<\/td>\n | 1 mV (typical)<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||
| Corriente de salida<\/td>\n | 25 mA<\/td>\n<\/tr>\n | |||||||||||||||||||||||||||
| Corriente de reposo<\/td>\n | 50 \u00b5A (max)<\/td>\n<\/tr>\n<\/table>\nCaracter\u00edsticas<\/h2>\nAplicaciones<\/h2>\nProduct Overview The REF2930AIDBZR is a Texas Instruments 3.0 V, 100 ppm\/\u00b0C, 50 \u00b5A CMOS series voltage reference in a 3-pin SOT-23 package. It features 1 mV dropout voltage, 25 mA output current, 2% initial accuracy, and stable operation with any capacitive load. The device operates from -40\u00b0C to +125\u00b0C. Key Specifications Output Voltage 3.0 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19,13],"tags":[],"chip_brand":[138],"class_list":["post-8727","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"3.0V precision voltage reference, 0.05% accuracy, 8ppm\/C tempco, SOT-23-3","date_code":"","package_case":"3-SOT-23 (2.92 x 1.30 mm)","in_stock":8000,"datasheet":"https:\/\/www.ti.com\/product\/REF2930","price":"$0.65 @ 1ku","product_introduction":"The Texas Instruments REF2930AIDBZR is a 3.0V precision voltage reference featuring 0.05% initial accuracy and 8 ppm\/C temperature coefficient in a tiny SOT-23-3 package. The device uses a bandgap reference architecture with trimmed resistors and curvature correction to achieve its low drift specification, providing a stable 3.0V output over the -40C to +85C industrial temperature range. The REF2930A supports supply voltages from 3.05V to 5.5V with a maximum quiescent current of 95 uA, making it suitable for battery-powered and always-on applications. The output can source up to 25 mA and sink up to 10 mA, sufficient to directly drive ADC\/DAC reference inputs without external buffering. The 25 uVp-p (0.1-10 Hz) output noise is low enough for 16-bit and higher resolution converter systems. The device is stable with any output capacitor value (including no capacitor), simplifying PCB layout in space-constrained designs.","working_principle":"The REF2930A uses a bandgap voltage reference core that generates a stable voltage based on the predictable relationship between the base-emitter voltage of bipolar transistors (which has a negative temperature coefficient) and the thermal voltage kT\/q (which has a positive temperature coefficient). By summing these two complementary temperature-dependent voltages in the correct ratio, the output achieves near-zero temperature drift. During manufacturing, laser-trimmed resistors set the output to 3.000V with 0.05% accuracy, and curvature correction circuits compensate for higher-order temperature effects to achieve the 8 ppm\/C specification. The output stage is a class-AB buffer capable of both sourcing and sinking current, maintaining stable output impedance under varying load conditions. The wide supply range (3.05-5.5V) and low Iq (95 uA max) make the device practical for systems where the reference must operate from the same supply rail as the ADC or DAC it serves.","pin_description":"
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