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Analog Devices Inc./Maxim Integrated MAX6072AAUB41+
- Part No.:
- MAX6072AAUB41+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX6072AAUB41+.pdf
- Description:
- IC VREF SERIES 0.05% 10UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:120
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Product details
Overview
The MAX6072AAUB41+ from Maxim Integrated is a high-precision dual-output series voltage reference delivering 4.096V and 2.048V outputs with ±0.05% initial accuracy, 6ppm/°C max temperature drift over -40°C to +125°C, and 9.6μVP-P (0.1Hz–10Hz) 1/f noise. It sources/sinks ±10mA per output with independent force/sense pins and enables precision ADC common-mode biasing in industrial data acquisition systems.
For engineers reviewing the MAX6072AAUB41+ datasheet, MAX6072AAUB41+ pinout, MAX6072AAUB41+ application, or MAX6072AAUB41+ equivalent, key selection criteria include dual-rail tracking stability (0.4ppm/°C drift matching), low 150μA quiescent current per reference, thermal hysteresis of 85ppm, and μMAX-10 package compatibility with space-constrained PCB layouts.
Technical Context
The MAX6072AAUB41+ integrates two independent BiCMOS bandgap references with Kelvin force/sense architecture for each output-OUT1F/OUT1S for 4.096V and OUT2F/OUT2S for 2.048V-enabling cancellation of trace resistance errors. Each reference features separate enable inputs (EN1/EN2) and supply inputs (IN1/IN2), allowing independent power sequencing and noise isolation.
Its design supports precision signal chains requiring matched temperature coefficients and long-term stability: 15ppm drift over 1000 hours, 2.5ppm thermal hysteresis tracking between outputs, and 80dB/86dB ripple rejection at 60Hz for VREF1/VREF2 respectively-critical for high-resolution SAR and delta-sigma ADCs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltages | 4.096V (VREF1) and 2.048V (VREF2), enabling precise 16-bit ADC full-scale and common-mode referencing |
| Initial Accuracy | ±0.05% at +25°C, reducing calibration burden in factory-trimmed instrumentation systems |
| Temp Drift (max) | 6ppm/°C over -40°C to +125°C, ensuring <±0.5mV total error across industrial temperature range |
| 1/f Noise (0.1–10Hz) | 9.6μVP-P on VREF1, limiting quantization noise floor in 20-bit+ measurement applications |
| Quiescent Current | 150μA per reference at +25°C, supporting battery-powered portable medical devices |
| Output Drive | ±10mA sourcing/sinking capability per rail, sufficient to drive ADC reference inputs and op-amp bias networks |
| Ripple Rejection | 80dB (VREF1) / 86dB (VREF2) at 60Hz, rejecting power-supply coupling in noisy industrial environments |
Pinout & Package
The MAX6072AAUB41+ is housed in a 10-pin μMAX® package (U10M+5 outline, 3mm × 3mm footprint) with exposed pad for thermal dissipation. Pin 3 and Pin 8 are both GND and must connect to a solid ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1F) | VREF1 Force Output | Delivers 4.096V to load; must be shorted to OUT1S near load to eliminate trace IR drop |
| 2 (OUT1S) | VREF1 Sense Input | Feedback node for internal regulation; connects to OUT1F at load point for Kelvin sensing |
| 3, 8 (GND) | Ground Reference | Dual ground pins require low-impedance connection to PCB ground plane for noise immunity |
| 4 (EN2) | VREF2 Enable Control | Active-high logic input; disables VREF2 (2.048V) to reduce system power during idle cycles |
| 5 (IN2) | VREF2 Supply Input | Independent 2.7V–5.5V supply for second reference; allows separate LDO feeding for PSRR optimization |
| 6 (OUT2F) | VREF2 Force Output | Delivers 2.048V to load; shorted to OUT2S at load for accurate common-mode bias generation |
| 7 (OUT2S) | VREF2 Sense Input | Sense feedback for VREF2 regulation; critical for maintaining VREF2/VREF1 ratio accuracy |
| 9 (EN1) | VREF1 Enable Control | Active-high logic input; enables/disables 4.096V output independently for power sequencing |
| 10 (IN1) | VREF1 Supply Input | Independent 4.3V–5.5V supply for primary reference; supports headroom for 4.096V output |
Key Features
| Feature | Design Value |
|---|---|
| Dual Kelvin Outputs | Separate force/sense pairs (OUT1F/OUT1S and OUT2F/OUT2S) eliminate PCB trace resistance errors in precision ADC reference paths |
| Matched Temperature Drift | 0.4ppm/°C tracking between VREF1 and VREF2 ensures stable 2:1 ratio across -40°C to +125°C for differential amplifier biasing |
| Low Thermal Hysteresis | 85ppm absolute hysteresis and 2.5ppm hysteresis tracking maintain repeatability after thermal cycling in field-deployed equipment |
| Independent Enable Control | EN1 and EN2 allow staggered power-up of reference rails to prevent supply rail collapse during system boot |
| Capacitive-Load Stability | Stable with 0.1μF–10μF output capacitors, accommodating ceramic or tantalum bypassing for EMI suppression |
Applications
| Industrial Process Monitoring | Portable Medical Instrumentation |
|---|---|
Use Scenario: High-accuracy 4–20mA loop-powered transmitters measuring pressure, flow, or temperature in chemical plants. IC Role / Device Role / Timing Role: Provides dual-rail reference for 24-bit sigma-delta ADC and DAC in analog front-end, with VREF2 (2.048V) setting common-mode voltage for differential input stages. Use Value: 6ppm/°C drift and 15ppm/1000h long-term stability ensure <0.1% total error over 10-year field deployment without recalibration. | Use Scenario: Battery-operated ECG and EEG monitors requiring ultra-low-noise analog signal conditioning. IC Role / Device Role / Timing Role: Supplies 4.096V reference to 16-bit SAR ADC and 2.048V common-mode bias to fully differential amplifiers driving the ADC inputs. Use Value: 9.6μVP-P 1/f noise and 150μA quiescent current per reference extend battery life while preserving diagnostic-grade signal fidelity. |
| Automated Test Equipment (ATE) | High-Accuracy Data Loggers |
Use Scenario: Modular PXI-based ATE systems performing DC parametric testing of ICs and sensors. IC Role / Device Role / Timing Role: Delivers calibrated 4.096V/2.048V rails to multi-channel precision DACs and ADCs in stimulus/response measurement modules. Use Value: Independent IN1/IN2 supplies and EN1/EN2 enables allow channel-by-channel power control, minimizing crosstalk and self-heating during parallel testing. | Use Scenario: Environmental monitoring nodes logging temperature, humidity, and gas concentration in remote locations. IC Role / Device Role / Timing Role: Serves as master reference for low-power microcontroller-integrated ADCs and external sensor signal chains. Use Value: 0.05% initial accuracy and 80dB PSRR suppress supply ripple from solar-charged batteries, ensuring <±1LSB error in 16-bit measurements. |
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 |
|---|---|---|---|
| MAX6072AAUB50+ | Outputs 5.000V/2.500V instead of 4.096V/2.048V; identical accuracy (±0.05%), drift (6ppm/°C), and package | Targeted at 5V-system ADCs and legacy designs using 5V full-scale references | Select when system ADC resolution requires exact 5V reference (e.g., 5V/65536 = 76.3μV/LSB vs. 4.096V/65536 = 62.5μV/LSB) |
| LT6657IMS8-4.096#PBF | Single 4.096V output with 2ppm/°C drift, 0.025% accuracy, and 1.8μVP-P noise; 8-pin MSOP package | Lacks VREF/2 output, requiring external resistor divider or second reference for common-mode bias | Choose when ultra-low drift/noise outweighs need for integrated dual-rail solution and board space permits discrete bias network |
Compared with MAX6072AAUB50+, the MAX6072AAUB41+ provides optimized 4.096V/2.048V outputs for 16-bit systems where LSB size must match standard binary scaling; versus LT6657, it trades marginal noise/drift improvement for integrated dual-rail functionality, eliminating layout complexity and matching errors from external components.
Availability
The MAX6072AAUB41+ is available at Aetrix Electronics and suitable for industrial process monitoring, portable medical instrumentation, and automated test equipment requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6072AAUB41+ 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 demanding industrial, medical, and communications applications.
The MAX6072 series was engineered specifically for high-accuracy data acquisition systems needing tightly matched dual-reference rails-enabling single-chip solutions for ADC/DAC reference and common-mode bias without external dividers or trimming.
FAQ
What is the maximum load current supported by each output of the MAX6072AAUB41+?
The MAX6072AAUB41+ supports ±10mA sourcing and sinking capability on both the 4.096V (OUT1F/OUT1S) and 2.048V (OUT2F/OUT2S) outputs. This is sufficient to drive typical ADC reference inputs, op-amp bias networks, and small-signal conditioning circuits without external buffers. The device maintains specified accuracy and noise performance across this full current range.
How does the Kelvin force/sense architecture improve accuracy in the MAX6072AAUB41+?
The MAX6072AAUB41+ uses separate force (OUTxF) and sense (OUTxS) pins for each output to eliminate voltage drop errors caused by PCB trace resistance. By routing the sense line directly to the load's reference input point-and shorting it to the force pin there-the internal regulator corrects for IR losses. This ensures the actual voltage delivered to the load matches the specified 4.096V/2.048V within ±0.05% accuracy, even with 100mΩ trace resistance.
Can the MAX6072AAUB41+ operate from a single supply rail, or do IN1 and IN2 require separate voltages?
The MAX6072AAUB41+ supports both configurations: IN1 and IN2 may be tied together to a single supply (e.g., +5V), or powered independently. For optimal PSRR, IN2 can be supplied from a cleaner LDO than IN1. The required ranges differ-IN1 needs ≥4.3V for 4.096V output, while IN2 only requires ≥2.7V for 2.048V-allowing flexible power architecture design in the MAX6072AAUB41+.
What is the thermal hysteresis specification for the MAX6072AAUB41+, and why does it matter in field applications?
The MAX6072AAUB41+ exhibits 85ppm absolute thermal hysteresis on each output and 2.5ppm hysteresis tracking between outputs. This means that after cycling from -40°C to +125°C and back to +25°C, the output voltage shifts by ≤85ppm from its original +25°C value. In field-deployed equipment subject to daily thermal cycles (e.g., outdoor sensors), low hysteresis ensures repeatable measurements without recalibration drift.
Is the MAX6072AAUB41+ compatible with ceramic output capacitors, and what is the recommended range?
Yes, the MAX6072AAUB41+ is stable with ceramic output capacitors ranging from 0.1μF to 10μF on both outputs. A 0.1μF X7R ceramic capacitor placed close to each OUTxF pin is the minimum recommended for high-frequency noise suppression. For applications with rapidly changing loads (e.g., multiplexed ADC sampling), a 10μF tantalum or aluminum electrolytic in parallel with 0.1μF ceramic is advised to maintain transient response and stability in the MAX6072AAUB41+.
MAX6072AAUB41+ 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):
- 2.048V, 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.05%
- Temperature Coefficient:
- 6ppm/°C
- Noise - 0.1Hz to 10Hz:
- 6.4µVp-p, 9.6µVp-p
- Noise - 10Hz to 10kHz:
- 8.6µVrms, 12µVrms
- Voltage - Input:
- 2.7V ~ 5.5V
- Current - Supply:
- 280µA, 350µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-uMAX/uSOP
MAX6072AAUB41+ FAQ
1.How can I place an order for MAX6072AAUB41+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6072AAUB41+ 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 MAX6072AAUB41+ reliable?
The price and inventory of MAX6072AAUB41+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6072AAUB41+ is usually 5 days.
3.What payment methods are accepted for MAX6072AAUB41+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6072AAUB41+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6072AAUB41+?
MAX6072AAUB41+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6072AAUB41+ 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 MAX6072AAUB41+?
For technical support, including MAX6072AAUB41+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6072AAUB41+ requirements.
6.How does Aetrix verify that MAX6072AAUB41+ is sourced from the original manufacturer or authorized distributors?
All MAX6072AAUB41+ 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 MAX6072AAUB41+ meets industry standards.
7.What is the process for return or replacement of MAX6072AAUB41+?
All MAX6072AAUB41+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6072AAUB41+, 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 MAX6072AAUB41+ part is unused and in its original packaging.
Return procedure for MAX6072AAUB41+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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