My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6072AAUB25+
- Part No.:
- MAX6072AAUB25+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX6072AAUB25+.pdf
- Description:
- IC VREF SERIES 0.05% 10UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:162
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6072AAUB25+ from Maxim Integrated is a dual-output precision series voltage reference delivering 2.5V and 1.25V outputs with ±0.05% initial accuracy, 6ppm/°C max temperature drift over –40°C to +125°C, and 4.8µVP-P (0.1–10Hz) 1/f noise. It sources/sinks ±10mA per output with independent force/sense pins and enables precision ADC common-mode biasing in high-accuracy data acquisition systems.
For engineers reviewing the MAX6072AAUB25+ datasheet, MAX6072AAUB25+ pinout, MAX6072AAUB25+ application, or MAX6072AAUB25+ equivalent, key selection criteria include dual-rail tracking stability, thermal hysteresis matching (2.5ppm), low quiescent current (150µA/ref), and µMAX package compatibility for space-constrained industrial sensor front-ends.
Technical Context
The MAX6072AAUB25+ integrates two independent BiCMOS bandgap references with Kelvin force/sense architecture per output, enabling cancellation of PCB trace IR drop. Each reference features separate enable control (EN1/EN2), dedicated supply inputs (IN1/IN2), and operates down to 2.75V on IN2 and 2.8V on IN1 - supporting rail-to-rail operation across its 2.8V–5.5V input range.
Its dual-output topology provides inherent VREF/2 tracking without external dividers, with measured output voltage temperature drift tracking of 0.4ppm/°C and long-term drift matching of 7ppm over 1000 hours - critical for maintaining signal chain integrity in portable medical and ATE equipment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltages | 2.500V (OUT1F/OUT1S) and 1.250V (OUT2F/OUT2S) - precisely ratio-matched for differential ADC common-mode biasing |
| Initial Accuracy | ±0.05% at +25°C - ensures <±1.25mV absolute error on 2.5V rail without calibration |
| Temp Drift (max) | 6ppm/°C over –40°C to +125°C - contributes ≤±0.9mV error across full industrial range |
| 1/f Noise (0.1–10Hz) | 4.8µVP-P on OUT2F, 4.8µVP-P on OUT1F - minimizes low-frequency quantization uncertainty in precision digitization |
| Load Current | ±10mA per output - supports direct driving of SAR ADC reference inputs and op-amp bias networks |
| Quiescent Current | 150µA per reference (typ) - enables battery-powered sensor nodes with multi-year runtime |
| Thermal Hysteresis | 85ppm per output, 2.5ppm tracking - guarantees repeatable voltage after thermal cycling in field-deployed systems |
Pinout & Package
The MAX6072AAUB25+ is housed in a 10-pin µMAX® package (3mm × 3mm, 0.8mm height) with exposed pad for thermal enhancement. Pin 3 and Pin 8 are both GND and must be connected to a solid ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1F) | VREF1 Force Output | Delivers 2.5V to load; connect directly to load and bypass with 0.1–10µF capacitor to GND |
| 2 (OUT1S) | VREF1 Sense Input | Feedback node for regulation; short to OUT1F at load point to eliminate trace resistance error |
| 3, 8 (GND) | Ground Reference | Dual GND pins require low-impedance connection to PCB ground plane for noise immunity |
| 4 (EN2) | VREF2 Enable Control | Logic-high (>0.7×VIN2) enables 1.25V output; logic-low disables with 0.6–28µA shutdown current |
| 5 (IN2) | VREF2 Supply Input | Accepts 2.75–5.5V; powers 1.25V reference independently of IN1 |
| 6 (OUT2F) | VREF2 Force Output | Delivers 1.25V to load; requires local bypass and Kelvin sense routing |
| 7 (OUT2S) | VREF2 Sense Input | Regulation feedback path; short to OUT2F at load to maintain 1.25V accuracy under load |
| 9 (EN1) | VREF1 Enable Control | Independent enable for 2.5V rail; supports power sequencing and dynamic reference activation |
| 10 (IN1) | VREF1 Supply Input | Accepts 2.8–5.5V; may be tied to IN2 for single-supply operation |
Key Features
| Feature | Design Value |
|---|---|
| Dual Kelvin force/sense outputs | Eliminates voltage drop error from PCB traces - maintains ±0.05% accuracy at load point |
| Independent enable control (EN1/EN2) | Enables selective powering of 2.5V and 1.25V rails to reduce system standby current |
| 0.4ppm/°C output drift tracking | Ensures stable VREF/VREF2 ratio across temperature - critical for ratiometric ADC performance |
| 85ppm thermal hysteresis (per output) | Guarantees repeatability after thermal cycling in harsh environments like industrial process control |
| Capacitive-load stability (0.1–10µF) | Supports ceramic or tantalum output capacitors without oscillation - simplifies layout |
Applications
| High-Accuracy Industrial Process Control | Portable Medical Instrumentation |
|---|---|
Use Scenario: Precision analog front-end for 24-bit sigma-delta ADC measuring pressure, flow, or temperature in PLC I/O modules. IC Role / Device Role / Timing Role: Provides matched 2.5V reference and 1.25V common-mode bias for fully differential amplifier driving ADC - eliminating resistor divider drift. Use Value: Enables <±0.001% total unadjusted error (TUE) over –40°C to +85°C without recalibration. | Use Scenario: Battery-powered ECG or glucose meter requiring ultra-low-noise, low-power reference for analog signal conditioning. IC Role / Device Role / Timing Role: Supplies stable 2.5V excitation for sensor bridge and 1.25V bias for instrumentation amplifier - minimizing 1/f noise contribution to signal path. Use Value: Achieves <4.8µVP-P low-frequency noise and 150µA quiescent current per rail - extending battery life >3 years. |
| Test and Measurement Equipment (ATE) | ADC/DAC Reference and Common-Mode Set-Point |
Use Scenario: Modular PXI chassis card generating calibrated voltage stimuli and measurement references for semiconductor parametric testing. IC Role / Device Role / Timing Role: Dual-rail reference source for DAC output buffering and ADC input scaling - with independent EN1/EN2 for channel-specific power gating. Use Value: Delivers 6ppm/°C drift and 7ppm long-term drift matching - ensuring <1LSB error over 1000-hour test sequences. | Use Scenario: High-resolution data acquisition system using 18-bit SAR ADC with pseudo-differential input configuration. IC Role / Device Role / Timing Role: Generates precise 2.5V full-scale reference and 1.25V common-mode voltage simultaneously - replacing discrete op-amp + divider solution. Use Value: Reduces board area by 40% and improves thermal tracking vs. discrete alternatives - critical for compact DAQ modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6072BAUB25+ | 0.08% initial accuracy (vs. 0.05%), 8ppm/°C max drift (vs. 6ppm/°C) | Suitable where cost sensitivity outweighs sub-0.03% accuracy requirement | Select when budget constraints permit relaxed initial tolerance and thermal drift |
| ADR4525BRZ | Single 2.5V output, no VREF/2 rail; 0.02% accuracy, 3ppm/°C drift; SOIC-8 package | Requires external divider or second reference for 1.25V generation - increases component count and mismatch risk | Choose only if dual-rail integration is unnecessary and lowest possible drift is mandatory |
Compared with MAX6072BAUB25+, the MAX6072AAUB25+ delivers tighter initial accuracy and lower drift for demanding metrology-grade applications; compared with ADR4525BRZ, it eliminates external components needed for VREF/2 generation but trades off ultimate drift performance for integrated functionality.
Availability
MAX6072AAUB25+ is available at Aetrix Electronics and suitable for high-accuracy industrial process control, portable medical instrumentation, and automated test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6072AAUB25+ 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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for industrial, medical, and communications applications.
The MAX6072 product line delivers dual-output, high-stability voltage references optimized for ratiometric data acquisition systems where matched drift, low noise, and Kelvin sensing are essential for sub-LSB accuracy.
FAQ
What is the maximum load current supported by each output of the MAX6072AAUB25+?
The MAX6072AAUB25+ supports ±10mA load current on both OUT1F (2.5V) and OUT2F (1.25V) outputs. This allows direct interfacing with high-input-impedance ADC reference inputs and op-amp bias networks without external buffers. Sourcing and sinking capability ensures stable regulation under dynamic load conditions typical in precision data acquisition.
How does the Kelvin force/sense architecture improve accuracy in the MAX6072AAUB25+?
The MAX6072AAUB25+ uses separate force (OUTxF) and sense (OUTxS) pins for each output to eliminate voltage drop errors caused by PCB trace resistance. By routing OUTxS directly to the load point and feeding it back to the internal regulator, the device maintains ±0.05% accuracy at the load - not just at the die. This is critical for maintaining precision in systems with long interconnects or high-current paths.
What is the thermal hysteresis specification for the MAX6072AAUB25+ and why does it matter?
The MAX6072AAUB25+ exhibits 85ppm thermal hysteresis per output and 2.5ppm hysteresis tracking between outputs. Thermal hysteresis measures output voltage shift after cycling from –40°C to +125°C and back to +25°C. Low hysteresis ensures repeatable voltage values in field-deployed equipment subject to ambient temperature swings - essential for calibration-critical applications like portable medical devices.
Can the MAX6072AAUB25+ operate from a single supply voltage?
Yes, the MAX6072AAUB25+ supports single-supply operation: IN1 and IN2 can be tied together to a common 2.8V–5.5V rail. Each reference remains independently controllable via EN1 and EN2, allowing dynamic power sequencing. When powered from a single source, the device maintains full 2.5V/1.25V output accuracy and tracking performance - simplifying power architecture in space-constrained designs.
What output capacitor value is recommended for stable operation of the MAX6072AAUB25+?
The MAX6072AAUB25+ requires an output capacitor between 0.1µF and 10µF on both OUT1F and OUT2F. A 0.1µF ceramic capacitor placed as close as possible to each output pin is sufficient for most applications. For systems with rapidly changing loads or switching noise, use a 10µF tantalum or aluminum electrolytic capacitor in parallel with the 0.1µF ceramic to suppress transients while maintaining stability.
MAX6072AAUB25+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 1.25V, 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.05%
- Temperature Coefficient:
- 6ppm/°C
- Noise - 0.1Hz to 10Hz:
- 3.6µVp-p, 4.8µVp-p
- Noise - 10Hz to 10kHz:
- 5µVrms, 6µVrms
- Voltage - Input:
- 2.75V ~ 5.5V
- Current - Supply:
- 260µA, 320µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-uMAX/uSOP
MAX6072AAUB25+ FAQ
1.How can I place an order for MAX6072AAUB25+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6072AAUB25+ 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 MAX6072AAUB25+ reliable?
The price and inventory of MAX6072AAUB25+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6072AAUB25+ is usually 5 days.
3.What payment methods are accepted for MAX6072AAUB25+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6072AAUB25+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6072AAUB25+?
MAX6072AAUB25+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6072AAUB25+ 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 MAX6072AAUB25+?
For technical support, including MAX6072AAUB25+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6072AAUB25+ requirements.
6.How does Aetrix verify that MAX6072AAUB25+ is sourced from the original manufacturer or authorized distributors?
All MAX6072AAUB25+ 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 MAX6072AAUB25+ meets industry standards.
7.What is the process for return or replacement of MAX6072AAUB25+?
All MAX6072AAUB25+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6072AAUB25+, 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 MAX6072AAUB25+ part is unused and in its original packaging.
Return procedure for MAX6072AAUB25+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6072AAUB25+ Tags
-
TL431AIDBZR
Texas Instruments
-
TL431BQDBZR
Texas Instruments
-
AN431AN-ATRG1
Diodes Incorporated
-
LM4040CYM3-2.5-TR
Microchip Technology
-
LM4040CYM3-4.1-TR
Microchip Technology
-
LM4040EIM3-2.5/NOPB
Texas Instruments
-
AZ431LBNTR-G1
Diodes Incorporated
-
LM4040D20IDBZR
Texas Instruments
-
LM4041DIM3-ADJ/NOPB
Texas Instruments
-
LM4040DIM3X-2.5/NOPB
Texas Instruments
-
LM4040DIM3-2.5/NOPB
Texas Instruments
-
AZ431LANTR-G1
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
