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Analog Devices Inc./Maxim Integrated MAX6078AMWT50+
- Part No.:
- MAX6078AMWT50+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 6-WFBGA, WLBGA
- Datasheet:
-
MAX6078AMWT50+.pdf
- Description:
- LOW-POWER, LOW-DRIFT, LOW-NOISE
- Quantity:
- Payment:
- Shipping:
Inventory:4,977
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Product details
Overview
The MAX6078AMWT50+ from Analog Devices is a precision 5.0V voltage reference IC with ±0.04% initial accuracy, <10ppm/°C temperature drift, and 27µVP-P (0.1Hz–10Hz) low-frequency noise. It sources/sinks ±3mA load current, operates from 5.2V to 5.5V input, and features force-sense output architecture for high-accuracy remote sensing in industrial ADCs and instrumentation.
For engineers reviewing the MAX6078AMWT50+ datasheet, MAX6078AMWT50+ pinout, MAX6078AMWT50+ application, or MAX6078AMWT50+ equivalent, this device delivers verified low-drift, low-noise performance across –55°C to +125°C with integrated enable control, noise reduction filtering, and 100mV dropout - critical for high-resolution data acquisition and portable precision systems.
Technical Context
The MAX6078AMWT50+ implements a bandgap-based reference core with independent force (OUTF) and sense (OUTS) outputs to eliminate PCB trace IR drop errors. Its NR pin accepts a 0.01µF capacitor to reduce wideband noise spectral density from 1100nV/√Hz to 660nV/√Hz at 100Hz.
It supports shutdown via EN pin (logic-high enable), achieving <2µA shutdown current, and maintains stability with 0.1µF–4.7µF output capacitance. The 6-bump WLP package (1.5mm × 1.3mm, 0.5mm pitch) enables ultra-compact placement in space-constrained industrial and portable designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±0.04% (±2mV) - ensures absolute accuracy for 16-bit+ ADC/DAC biasing without calibration. |
| Temp Coefficient | <10ppm/°C (–55°C to +125°C) - guarantees ≤0.5mV total drift over full industrial range. |
| Low-Freq Noise | 27µVP-P (0.1Hz–10Hz) - minimizes quantization uncertainty in precision measurement front-ends. |
| Supply Current | 15µA max (at +25°C) - enables multi-year battery life in handheld instrumentation. |
| Load Current | ±3mA sourcing/sinking - drives ADC reference inputs, op-amp bias networks, and precision current sources directly. |
| Dropout Voltage | 100mV at 3mA load - allows operation from 5.2V supply with margin for LDO ripple or aging. |
| Long-Term Drift | 16ppm (4000hrs) - supports 10+ year system calibration intervals in process control hardware. |
Pinout & Package
MAX6078AMWT50+ uses a 1.5mm × 1.3mm, 0.5mm-pitch, 6-bump Wafer-Level Package (WLP) with exposed die attach pad (non-connected). Pin assignment follows standard 6-WLP layout per Analog Devices Package Code W61L1+1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | OUTS | Sense output - connects directly at load point to cancel PCB trace resistance error in force-sense topology. |
| A2 | OUTF | Force output - supplies regulated 5.0V to load; bypassed with 0.1µF capacitor to GND for stability. |
| A3 | NR | Noise reduction input - accepts 0.01µF capacitor to GND to cut wideband noise by ~40% at 100Hz. |
| B1 | GND | Analog ground reference - must be low-impedance, star-connected to minimize ground bounce. |
| B2 | IN | Supply input - accepts 5.2V–5.5V; requires local 0.1µF bypass capacitor to suppress supply ripple. |
| B3 | EN | Enable control - logic-high (>0.7×VIN) enables output; logic-low disables output and reduces IQ to <2µA. |
Key Features
| Feature | Design Value |
|---|---|
| Force-sense output architecture | Eliminates voltage drop error on PCB traces up to 1Ω, enabling true 5.0V accuracy at remote ADC REF pins. |
| Wideband noise reduction (NR) pin | Reduces 100Hz noise spectral density from 1100nV/√Hz to 660nV/√Hz using only a 0.01µF capacitor. |
| Ultra-low quiescent current | 15µA max enables integration into always-on sensor nodes powered by coin cells or energy harvesters. |
| Extended temperature operation | Specified from –55°C to +125°C supports deployment in oil/gas downhole tools and automotive engine compartments. |
| Shutdown with fast wake-up | EN pin disables output in <3ms and restores regulation within 30ms (with NR cap), ideal for duty-cycled precision systems. |
Applications
| High-Resolution ADC Reference | Precision Portable Instrumentation |
|---|---|
Use Scenario: Providing stable 5.0V reference to 18-bit SAR ADCs in handheld multimeters and portable DMMs. IC Role / Device Role / Timing Role: Primary voltage reference source with force-sense correction ensuring <0.01% linearity error across temperature. Use Value: Enables 100ppm absolute accuracy without factory calibration, extending battery life via 15µA supply current. |
Use Scenario: Biasing low-power op-amps and analog front-ends in battery-powered gas analyzers and environmental sensors. IC Role / Device Role / Timing Role: Precision DC reference for signal conditioning chains requiring sub-10ppm/°C drift stability. Use Value: Delivers 27µVP-P low-frequency noise and 16ppm long-term drift, reducing measurement uncertainty over 5-year field deployments. |
| Industrial Process Control Transmitters | High-Accuracy Current Sources |
Use Scenario: Generating 4–20mA loop reference voltages in smart pressure/flow transmitters operating in harsh environments. IC Role / Device Role / Timing Role: Core reference for DAC-controlled current sinks, maintaining accuracy across –40°C to +85°C ambient. Use Value: <10ppm/°C drift and 100mV dropout ensure stable 5.0V output even with aging 24V loop supplies and thermal cycling. |
Use Scenario: Building programmable current sources for calibration equipment and sensor excitation circuits. IC Role / Device Role / Timing Role: Force-sense reference driving BJT base-emitter junctions to generate precise, temperature-compensated currents. Use Value: OUTF/OUTS separation enables current accuracy better than 0.1% over –55°C to +125°C without external trimming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5050IDR | 5.0V, 3ppm/°C max drift, 10µVP-P noise, SO-8 package, 950µA IQ | Higher accuracy and lower noise but 63× higher supply current; requires larger PCB area. | Select when ultimate drift/noise performance justifies power and size penalty - not suitable for battery operation. |
| ADR4550BRZ | 5.0V, 3ppm/°C max drift, 12µVP-P noise, SO-8 package, 950µA IQ, no EN/NR pins | Superior drift/noise specs but lacks enable and noise-reduction features; fixed SO-8 footprint. | Choose for lab-grade instrumentation where lowest possible drift dominates over power and feature set. |
Compared with REF5050IDR and ADR4550BRZ, the MAX6078AMWT50+ trades minor drift/noise margin for 63× lower quiescent current, integrated enable/shutdown, noise filtering, and ultra-small WLP packaging - making it optimal for space- and power-constrained industrial edge devices.
Availability
MAX6078AMWT50+ is available at Aetrix Electronics and suitable for high-accuracy industrial and process control, precision instrumentation, and portable and handheld systems requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MAX6078AMWT50+ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, communications, automotive, and consumer markets.
The MAX6078 family is designed for ultra-low-power, high-accuracy voltage referencing in space-constrained, battery-operated, and extended-temperature industrial systems - emphasizing drift, noise, and supply efficiency over raw speed.
FAQ
What is the output voltage tolerance of the MAX6078AMWT50+ at +25°C?
The MAX6078AMWT50+ has an initial output voltage accuracy of ±0.04% at +25°C, corresponding to ±2mV around its nominal 5.000V output. This specification is 100% tested and guaranteed, enabling direct use in 16-bit+ data converters without post-manufacturing trimming.
How does the force-sense architecture of the MAX6078AMWT50+ improve system accuracy?
The MAX6078AMWT50+ uses separate OUTF (force) and OUTS (sense) pins to eliminate voltage drop errors caused by PCB trace resistance. By connecting OUTS directly at the load, the internal regulator corrects for IR loss - delivering true 5.000V accuracy at the point of use, critical for high-linearity ADC references.
Can the MAX6078AMWT50+ operate from a 5.0V supply?
No - the MAX6078AMWT50+ requires a minimum input voltage of 5.2V (per Electrical Characteristics table for 5.0V output) due to its 100mV dropout at 3mA load. Operating below 5.2V risks output regulation failure, especially under full load or elevated temperature.
What capacitor value is recommended for the NR pin on the MAX6078AMWT50+?
A 0.01µF capacitor connected from the NR pin to GND is specified to reduce wideband noise. Larger values provide negligible additional benefit; the 0.01µF value cuts 100Hz noise spectral density from 1100nV/√Hz to 660nV/√Hz for the 5.0V version, as verified in the datasheet's Electrical Characteristics tables.
Is the exposed pad (EP) on the MAX6078AMWT50+ WLP package required to be grounded?
No - the exposed pad on the MAX6078AMWT50+ WLP package is not internally connected and must remain electrically and mechanically isolated. Per Analog Devices' Pin Description, EP should have no copper, solder mask, or mechanical contact to avoid die stress and ground current redistribution that degrade accuracy and long-term stability.
MAX6078AMWT50+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 6-WFBGA, WLBGA
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 3 mA
- Tolerance:
- ±0.04%
- Temperature Coefficient:
- 10ppm/°C
- Noise - 0.1Hz to 10Hz:
- 12µVp-p
- Noise - 10Hz to 10kHz:
- 30µVrms
- Voltage - Input:
- 2.7V ~ 5.5V
- Current - Supply:
- 18µA
- Current - Cathode:
- -
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WLP (1.46x1.29)
MAX6078AMWT50+ FAQ
1.How can I place an order for MAX6078AMWT50+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6078AMWT50+ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX6078AMWT50+ reliable?
The price and inventory of MAX6078AMWT50+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6078AMWT50+ is usually 5 days.
3.What payment methods are accepted for MAX6078AMWT50+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6078AMWT50+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6078AMWT50+?
MAX6078AMWT50+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6078AMWT50+ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX6078AMWT50+?
For technical support, including MAX6078AMWT50+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6078AMWT50+ requirements.
6.How does Aetrix verify that MAX6078AMWT50+ is sourced from the original manufacturer or authorized distributors?
All MAX6078AMWT50+ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX6078AMWT50+ meets industry standards.
7.What is the process for return or replacement of MAX6078AMWT50+?
All MAX6078AMWT50+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6078AMWT50+, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX6078AMWT50+ part is unused and in its original packaging.
Return procedure for MAX6078AMWT50+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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