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Analog Devices Inc./Maxim Integrated MAX6078AMWT25+T
- Part No.:
- MAX6078AMWT25+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 6-WFBGA, WLBGA
- Datasheet:
-
MAX6078AMWT25+T.pdf
- Description:
- IC VREF SERIES 0.04% 6WLP
- Quantity:
- Payment:
- Shipping:
Inventory:3,057
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Product details
Overview
The MAX6078AMWT25+T from Analog Devices is a precision 2.5V voltage reference IC with ±0.04% initial accuracy, <10ppm/°C temperature drift, and 12µVP-P (0.1Hz–10Hz) low-frequency noise. It sources/sinks up to ±3mA load current, operates from 2.7V to 5.5V input, and features force-sense output architecture for high-accuracy biasing in precision ADCs and industrial sensor interfaces.
For engineers reviewing the MAX6078AMWT25+T datasheet, MAX6078AMWT25+T pinout, MAX6078AMWT25+T application, or MAX6078AMWT25+T equivalent, this device delivers ultra-low drift and noise performance in a 1.5mm × 1.3mm 6-bump WLP package-critical for space-constrained, high-stability analog signal chains requiring long-term stability (16ppm typical over 4000 hours) and wideband noise reduction via NR pin.
Technical Context
The MAX6078AMWT25+T implements a bandgap-based reference core with independent force (OUTF) and sense (OUTS) outputs to eliminate PCB trace IR drop errors. Its enable-controlled shutdown reduces supply current to ≤2µA, while the NR pin accepts a 0.01µF capacitor to reduce 100Hz spectral noise density from 580nV/√Hz to 385nV/√Hz.
It supports operation across –55°C to +125°C with 100mV dropout at 3mA load and maintains 0.1% settling in 5ms (no NR cap) or 50ms (with 0.01µF NR cap), enabling fast wake-up in battery-powered instrumentation and portable test equipment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.500V ±0.04% (±1mV) at +25°C - ensures direct compatibility with 2.5V ADC/DAC reference rails without calibration. |
| Temp Coefficient | <10ppm/°C (–55°C to +125°C) - enables ≤250µV total drift over full industrial range, critical for process control transmitters. |
| Low-Freq Noise | 12µVP-P (0.1Hz–10Hz) - minimizes quantization uncertainty in 24-bit delta-sigma ADCs used in precision weigh scales. |
| Supply Current | 15µA max (at +25°C, VIN = 5V) - allows multi-year operation from coin-cell batteries in wireless sensor nodes. |
| Load Drive | ±3mA sourcing/sinking - supports driving 800Ω loads directly, eliminating need for external buffer in low-power DAC reference paths. |
| Dropout Voltage | 100mV at 3mA load - permits operation from 2.7V supply while maintaining 2.5V output, ideal for single-cell Li-ion systems. |
| Long-Term Drift | 16ppm typical (4000hrs at +35°C) - guarantees stable calibration over product lifetime in medical diagnostic equipment. |
Pinout & Package
MAX6078AMWT25+T uses a 1.5mm × 1.3mm, 0.5mm pitch, 6-bump Wafer-Level Package (WLP) optimized for minimal board area and thermal performance. The exposed die attach pad (EP) must remain unconnected for optimal stress-free operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | OUTS | Sense feedback input - connects directly at load point to cancel PCB trace resistance error in precision current sources or remote sensing. |
| A2 | OUTF | Force output - delivers regulated 2.5V to load; bypassed with 0.1µF capacitor to GND for stability and noise filtering. |
| A3 | NR | Noise reduction input - accepts 0.01µF capacitor to GND to lower wideband noise spectral density by ~34% at 100Hz. |
| B1 | GND | Analog ground reference - must be connected to clean, low-impedance system ground plane to minimize PSRR degradation. |
| B2 | IN | Power supply input - operates from 2.7V to 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 (<0.3×VIN) disables output and reduces IQ to ≤2µA. |
Key Features
| Feature | Design Value |
|---|---|
| Force-sense output architecture | Eliminates voltage drop errors on PCB traces up to 100mΩ, preserving 2.5V accuracy at remote load points. |
| Wideband noise reduction (NR) pin | Reduces 100Hz noise spectral density from 580nV/√Hz to 385nV/√Hz using only a 0.01µF capacitor-no active filtering required. |
| Ultra-low quiescent current | 15µA max enables integration into always-on sensor nodes powered by energy-harvesting circuits or microampere battery supplies. |
| Extended temperature operation | Specified from –55°C to +125°C supports deployment in automotive under-hood modules and industrial motor drives. |
| High PSRR and ripple rejection | 50dB rejection at 60Hz allows direct use from noisy switch-mode power supplies without additional LDO filtering. |
Applications
| High-Accuracy Industrial Transmitters | Precision Portable Multimeters |
|---|---|
|
Use Scenario: 4–20mA loop-powered pressure/temperature transmitter operating in oil & gas field environments. IC Role / Device Role / Timing Role: Primary 2.5V reference for 24-bit ΣΔ ADC and DAC, providing excitation for RTD/bridge sensors and setting current-loop scaling. Use Value: <10ppm/°C drift ensures ≤0.05% full-scale error over –40°C to +85°C ambient, meeting SIL-2 functional safety requirements. |
Use Scenario: Handheld digital multimeter with autoranging, true RMS conversion, and battery life >500 hours. IC Role / Device Role / Timing Role: Stable 2.5V reference for dual-slope and ΣΔ ADC front-end, enabling 6½-digit resolution and <10ppm linearity. Use Value: 12µVP-P low-frequency noise prevents flicker-induced digit instability during slow sampling, improving readability. |
| High-Resolution Data Acquisition Systems | Medical Diagnostic Instrumentation |
|
Use Scenario: 32-channel, 24-bit isolated data acquisition module for vibration monitoring in wind turbines. IC Role / Device Role / Timing Role: Per-channel 2.5V reference for simultaneous-sampling SAR ADCs, minimizing channel-to-channel gain mismatch. Use Value: ±0.04% initial accuracy and 16ppm long-term drift ensure calibrated measurement integrity over 10-year service life without recalibration. |
Use Scenario: Portable ECG monitor with 5µV input-referred noise specification and 7-day battery runtime. IC Role / Device Role / Timing Role: Low-noise 2.5V reference for PGA and ADC biasing, enabling sub-microvolt baseline stability in differential lead measurements. Use Value: 15µA supply current and shutdown mode extend battery life; force-sense topology rejects PCB layout-induced offset in compact flex PCB assemblies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR4525BRZ-R7 | 2.5V, ±0.02% initial accuracy, 3ppm/°C drift, 1.8µA supply current, SOIC-8 package (4.9mm × 6.0mm) | Higher accuracy and lower drift, but larger footprint and no force-sense outputs - unsuitable for remote-sensing layouts. | Select when ultimate initial accuracy outweighs board space and remote sensing needs; verify SOIC-8 thermal derating in sealed enclosures. |
| REF5025IDR | 2.5V, ±0.05% initial accuracy, 3ppm/°C drift, 950µA supply current, SOIC-8 package | Higher power consumption and no enable/shutdown - incompatible with ultra-low-power or duty-cycled systems. | Choose only if higher drive strength (±10mA) is required and continuous operation is acceptable; avoid for battery-powered designs. |
Compared with ADR4525BRZ-R7 and REF5025IDR, the MAX6078AMWT25+T uniquely combines ultra-low power (15µA), force-sense architecture, and WLP packaging-making it the only option for miniaturized, battery-operated, high-accuracy sensor nodes requiring remote voltage regulation without added components.
Availability
MAX6078AMWT25+T is available at Aetrix Electronics and suitable for high-accuracy industrial transmitters, precision portable multimeters, and medical diagnostic instrumentation requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MAX6078AMWT25+T 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, automotive, communications, and healthcare markets.
The MAX6078 family was designed specifically for ultra-low-power, high-accuracy voltage reference applications in space-constrained, battery-operated, and extended-temperature industrial systems-emphasizing long-term stability, low noise, and force-sense topology.
FAQ
What is the output voltage tolerance of the MAX6078AMWT25+T at room temperature?
The MAX6078AMWT25+T has an initial output voltage tolerance of ±0.04% (±1mV) at +25°C, verified by 100% production testing. This tight accuracy eliminates the need for post-assembly trimming in precision data acquisition systems and ensures consistent performance across production batches of the MAX6078AMWT25+T.
How does the force-sense (OUTF/OUTS) architecture improve accuracy in the MAX6078AMWT25+T?
The MAX6078AMWT25+T uses separate OUTF (force) and OUTS (sense) pins to regulate voltage at the load point rather than at the IC output pad. By routing OUTS directly to the load, the MAX6078AMWT25+T cancels voltage drops across PCB traces and interconnects-enabling sub-0.01% gain error even with 100mΩ series resistance in remote-sensing applications.
What capacitor value should be used on the NR pin of the MAX6078AMWT25+T for optimal noise reduction?
A 0.01µF capacitor connected between the NR pin and GND provides optimal wideband noise reduction for the MAX6078AMWT25+T, lowering 100Hz spectral noise density from 580nV/√Hz to 385nV/√Hz. Larger values yield diminishing returns; smaller values provide less attenuation. The capacitor must be placed close to the NR pin with short, low-inductance traces.
Can the MAX6078AMWT25+T operate from a 2.7V supply while delivering full 2.5V output?
Yes-the MAX6078AMWT25+T supports input voltages from 2.7V to 5.5V and maintains full 2.5V output with only 100mV dropout at 3mA load. At 2.7V input, it delivers regulated 2.5V output with sufficient headroom, making the MAX6078AMWT25+T suitable for single-cell Li-ion (2.7–4.2V) and 3V primary battery applications.
What is the long-term stability specification for the MAX6078AMWT25+T, and how is it measured?
The MAX6078AMWT25+T exhibits 16ppm typical long-term drift over 4000 hours at +35°C, measured as cumulative change in output voltage at +25°C before and after accelerated aging. This metric reflects real-world calibration stability in medical and industrial equipment, ensuring the MAX6078AMWT25+T maintains accuracy without field recalibration for multi-year deployments.
MAX6078AMWT25+T 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):
- 2.5V
- 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:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WLP (1.46x1.29)
MAX6078AMWT25+T FAQ
1.How can I place an order for MAX6078AMWT25+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6078AMWT25+T 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 MAX6078AMWT25+T reliable?
The price and inventory of MAX6078AMWT25+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6078AMWT25+T is usually 5 days.
3.What payment methods are accepted for MAX6078AMWT25+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6078AMWT25+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6078AMWT25+T?
MAX6078AMWT25+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6078AMWT25+T 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 MAX6078AMWT25+T?
For technical support, including MAX6078AMWT25+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6078AMWT25+T requirements.
6.How does Aetrix verify that MAX6078AMWT25+T is sourced from the original manufacturer or authorized distributors?
All MAX6078AMWT25+T 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 MAX6078AMWT25+T meets industry standards.
7.What is the process for return or replacement of MAX6078AMWT25+T?
All MAX6078AMWT25+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6078AMWT25+T, 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 MAX6078AMWT25+T part is unused and in its original packaging.
Return procedure for MAX6078AMWT25+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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