Overview
The MAX6126B25+ is a precision voltage reference integrated circuit (IC) manufactured by Maxim Integrated (now part of Analog Devices). It provides a highly stable 2.5V output with ultra-low noise characteristics, making it particularly valuable in precision measurement systems. The device belongs to Maxim's family of buried Zener voltage references, which are known for their exceptional long-term stability and low temperature coefficient. The 'B' in the part number indicates its best-grade performance specification, with a maximum initial accuracy of ±0.04%.
Structure and Working Principle
The MAX6126B25+ utilizes a buried Zener diode architecture, which provides better noise performance and long-term stability compared to surface Zeners. The reference core is combined with precision analog circuitry to maintain stable output despite variations in input voltage and temperature. The device operates with an input voltage range of 4.5V to 40V and can source or sink up to 30mA of load current. Internal circuitry includes thermal protection and current limiting features to prevent damage under fault conditions.
Key Features
The MAX6126B25+ stands out for its ultra-low noise performance of just 1.5μVp-p (0.1Hz to 10Hz), which is critical for high-resolution data acquisition systems. Its low temperature coefficient of 3ppm/°C (max) ensures stable performance across industrial temperature ranges. Other notable features include low dropout operation (the input can be as low as 2.7V above the output), low quiescent current (800μA typical), and excellent line regulation (2μV/V typical). The device is available in an 8-pin SOIC package suitable for surface-mount assembly.
Application Areas
This voltage reference is widely used in precision instrumentation including digital multimeters, data acquisition systems, and medical equipment. Its stability makes it suitable for high-resolution analog-to-digital converters (ADCs) and digital-to-analog converters (DACs) in industrial control systems. Other applications include precision power supplies, calibration equipment, and automotive electronics where stable voltage references are required despite varying environmental conditions. The device's radiation-hardened version is also used in aerospace applications.
Maintenance and Precautions
While the MAX6126B25+ is a robust component, proper handling is essential for optimal performance. ESD precautions should be observed during handling and installation. The device should be stored in anti-static packaging when not in use. For best performance, the PCB layout should minimize thermal gradients across the package and keep noise-sensitive traces away from switching components. Input bypass capacitors (typically 0.1μF ceramic) should be placed as close as possible to the input pin.
B2B Procurement Guide
When procuring MAX6126B25+ ICs, verify the authenticity of components through authorized distributors, as counterfeit parts are a known issue in the semiconductor market. Consider purchasing from franchised distributors of Analog Devices (Maxim's parent company) for guaranteed authenticity. For volume purchases, negotiate pricing based on projected annual usage. Lead times can vary (typically 8-12 weeks), so plan procurement accordingly. Evaluate alternative part numbers (like MAX6126A25+ with slightly relaxed specifications) if cost sensitivity outweighs performance requirements.
Related Manufacturers
- 主营：smaj6.0ca、hef4040bt、ld7750rgr、max485esa、max660esa、gl850g-37、锂电池、stn1hnk60、hef4046bt、sy7201abc、fds4435bz、nce60p04y、aw8145csr、ika15n60t、iso7721dr、stp20nm60、nce01p13k、hef4081bt、lm3150mhx、sy7203dbc、irf840pbf、fdms6681z、1318183-1、bq32000dr、74hc123pw
- 主营：监视器、irf1010ns、lt1815cs8、max351ese、max204cwe、max708scsa、lt1522cs8、三极管、mc33274ad、zxfv202e5ta、lt1359cn#pbf、微控制器、lt1377cs8#tr、集成电路、sp705cn-l/tr、lt3572euf#pbf、lt1191cs8#pbf、lt3686edd#pbf、ltc660cs8#pbf、ltc1485is8#tr、ltm4604ev#pbf、lt1635in8#pbf、ltc1274isw#pbf、ltc6602iuf#pbf、ltc4282iuh#pbf
- 主营：恩智浦、英飞凌、德州仪器、电子元器件、集成电路、Ic芯片、ST
- 主营：Diodes美台、ST、THINE、A DI、Ti
- 主营：单片机、二极管、以太网、microchip、收发器、处理器、控制器、触摸屏、apt22f80b、apt42f50b、稳压器、lan9116-mt、lan9215-mt、lan9217-mt、lan9117-mt、lan9118-mt、lan9115-mt、lan9218-mt、tl972idgkr、as358mtr-g1、lan9215i-mt、usb3450-fzg、lan8187i-jt、lan8742a-cz、ksz8873mmli
- 主营：ST、ADI、恩智浦、ELMOS、xilinx
- 主营：Gscoolink、Chrontel昆泰、Norelsys、航顺MCU
- 主营：pj-608-5a、sot-9x3-3、hvssop-10、to-220-7c、聚丙烯、sot-363-6、pg-dso-12、mpx5010dp、电阻smd、sod-323he、htssop-20、tdfn2x2-8、es1g-tr3g、sk310br5g、缓冲器、继电器、smf3w10rj、数码管、mpx5100dp、74hc4538d、es1d-tr3g、14d621k-b、byg20jr3g、连接器、rs1m-tr3g
- 主营：h8210kbda、74hc4017d、h8124rbca、amc80aipw、sm6t100ah、h4p10kfda、sn7407nsr、stef12pur、cb7jbr200、aev14024w、adm207anz、cfr16j56r、sqpw715rj、rtd34024f、smcj64ahe、复用器、el8302iuz、cfr16j4k7、tssop-8-b、h495k3bda、sgp1610n2、h8432kbya、ww1ft54r9、h812r1dca、8403615ja
- 主营：bzt52c10s、ba45f6730、6098-0516、max998esa、ee-sx872a、i5-6300hq、ki2048-mr、74hc4051d、aons62602、lm324dr2g、cm32m101a、锂电池、upc1237ha、ee-sx1042、bzx55c5v1、lrs-35-24、2sc1162-c、ee-sx673a、tcd1304dg、bs45f3833、afb0812sh、swsw3516h、op2177arz、合成赢、ucc27323p
- 主营：FDC6312P、SI2333DS-T1-E3、CY8C27443-24PVXI、ATSAM3X8EA-AU
- 主营：dzta42qta、39100-1.8、st232ecdr、st3232ebt、st202ecdr、st232actr、mpc8280vra、irfz48npbf、irfz34npbf、irf9630pbf、irlz34npbf、irf3205pbf、irfb4321pbf、irfp150npbf、ir3475mtrpb、kp40102btld、irfb4229pbf、fgh40n60ufd、irfb7537pbf、63cpq100pbf、irl3705npbf、adl5310acpz、tlv271idbvr、ir3802mtrpbf、ir3537mtrpbf