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Analog Devices Inc./Maxim Integrated MAX6070AAUT30+T
- Part No.:
- MAX6070AAUT30+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6070AAUT30+T.pdf
- Description:
- IC VREF SERIES 0.04% SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:10,748
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Product details
Overview
MAX6070AAUT30+T from Analog Devices is a precision 3.0V low-noise, low-drift series voltage reference in a 6-pin SOT23 package. It delivers ±0.04% initial accuracy, 6ppm/°C max temperature drift (A grade), and 10µVP-P 0.1Hz–10Hz noise at 3.0V output. Designed for high-accuracy industrial sensing and 24-bit ADC biasing, it sources/sinks ±10mA with 150µA quiescent current.
For engineers reviewing the MAX6070AAUT30+T datasheet, MAX6070AAUT30+T pinout, MAX6070AAUT30+T application, or MAX6070AAUT30+T equivalent, key selection criteria include its 3.0V nominal output, filter-enabled wideband noise suppression, 65–150mV dropout at 10mA, and AEC-Q100 qualification for automotive-grade reliability.
Technical Context
The MAX6070AAUT30+T implements a bandgap-based series voltage reference architecture with separate force (OUTF) and sense (OUTS) outputs to reject PCB trace resistance errors. Its integrated FILTER pin accepts an external 0.1µF capacitor to suppress high-frequency noise above 10Hz-critical for metrology-grade signal chains.
It operates over –40°C to +125°C with guaranteed performance across the full range, using internal trimming for ±0.04% output accuracy at +25°C and long-term stability of 40ppm over 1000 hours. The device features enable-controlled shutdown (6µA ISD) and supports capacitive loads from 0.1µF to 10µF without oscillation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±0.04% at +25°C - enables direct interface with 3.0V ADC/DAC reference inputs without scaling. |
| Temp Drift (max) | 6ppm/°C (A grade) - ensures ≤180ppm total drift over –40°C to +125°C, critical for uncalibrated industrial sensors. |
| 1/f Noise | 10µVP-P (0.1Hz–10Hz) - preserves SNR in precision weigh scales and strain-gauge amplifiers. |
| Dropout Voltage | 65–150mV at 10mA - allows operation from 3.1V supply in battery-powered instrumentation. |
| Supply Current | 160µA typ / 330µA max (–40°C to +125°C) - enables multi-year operation in low-power IoT sensor nodes. |
| Ripple Rejection | 78dB at 60Hz - rejects power-supply hum in AC-powered test equipment and PLC analog modules. |
| Enable Logic | VIH = 0.7×VIN, VIL = 0.3×VIN - compatible with 3.3V and 5V microcontroller GPIOs without level shifters. |
Pinout & Package
Package: 6-pin SOT23 (U6+5/U6+5A), 2.9mm × 1.6mm × 1.1mm body, 0.95mm pitch, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FILTER | High-frequency bypass input | Accepts 0.1µF capacitor to GND; reduces thermal noise above 10Hz-essential for FFT-based spectral analysis systems. |
| GNDF | Force ground reference | Provides Kelvin connection path for OUTF; eliminates voltage drop error in high-current reference paths. |
| GND | Power ground | Main return for supply current; must be tied to system ground plane near IN pin to minimize PSRR degradation. |
| EN | Active-high enable control | Drives internal regulator; 1µA max leakage when disabled-enables duty-cycled power management in portable meters. |
| IN | Input supply rail | Operates from 3.5V to 5.5V; internal LDO regulation ensures stable output despite input ripple or sag. |
| OUTF | Force output terminal | Delivers regulated 3.0V; connects directly to load; bypassed with 0.1–10µF capacitor to GNDF for stability. |
| OUTS | Sense feedback terminal | Connects to load ground point; closes feedback loop to compensate for trace IR drop-improves accuracy by up to 0.1%. |
Key Features
| Feature | Design Value |
|---|---|
| Separate force/sense outputs | Eliminates voltage error from PCB trace resistance-maintains ±0.04% accuracy even with 100mΩ path impedance. |
| Filter-capable noise reduction | Reduces 10Hz–10kHz thermal noise to 6µVRMS-enables 24-bit effective resolution in delta-sigma ADCs. |
| AEC-Q100 qualified | Rated for automotive temperature range (–40°C to +125°C) and stress testing-validates use in ADAS sensor modules. |
| Low dropout (65mV min) | Permits operation from single Li-ion cell (3.0V–4.2V) with margin-ideal for handheld calibration tools. |
| Capacitive-load stable | Remains stable with 0.1–10µF output capacitance-supports ceramic decoupling and EMI filtering without phase compensation. |
Applications
| High-Accuracy Industrial and Process Control | Precision Instrumentation |
|---|---|
Use Scenario: 4–20mA loop-powered pressure transmitter with HART digital overlay. IC Role / Device Role / Timing Role: Provides stable 3.0V reference for DAC generating analog output and for ADC measuring sensor bridge voltage. Use Value: 6ppm/°C drift ensures <0.05% full-scale error over field temperature range; 10µVP-P noise prevents false HART signal detection. | Use Scenario: Portable handheld multimeter with 6½-digit resolution. IC Role / Device Role / Timing Role: Supplies reference voltage to dual-slope integrator and auto-zero amplifier stages. Use Value: 40ppm long-term stability avoids recalibration every 3 months; 150µA supply current extends battery life to >200 hours. |
| High-Resolution ADCs and DACs | Precision Current Sources |
Use Scenario: 24-bit delta-sigma ADC in seismic data acquisition node. IC Role / Device Role / Timing Role: Reference source for ADC's internal PGA and external anti-aliasing filter op-amps. Use Value: Filter-enabled 6µVRMS noise achieves >110dB SNR; force/sense topology rejects ground bounce from digital FPGA domain. | Use Scenario: Programmable 4–20mA current source for valve positioner in hazardous area. IC Role / Device Role / Timing Role: Sets precise voltage on current-sense resistor; regulates loop compliance voltage via external pass transistor. Use Value: ±10mA sourcing/sinking capability drives 1kΩ loop impedance; 78dB 60Hz rejection prevents mains-induced current ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3430RTER | 3.0V, 3ppm/°C max drift, 4.5µVP-P noise, 125µA IQ, 6-pin WSON | No FILTER pin; no force/sense outputs; lower noise but no Kelvin correction | Prefer for space-constrained designs where trace resistance <10mΩ; avoid in high-precision current loops. |
| ADR4530BRZ | 3.0V, 3ppm/°C max drift, 2.75µVP-P noise, 950µA IQ, 8-pin SOIC | Higher supply current; no enable/shutdown; no filter option; larger footprint | Choose for ultra-low-noise lab equipment where power budget permits; not suitable for battery operation. |
Compared with REF3430RTER and ADR4530BRZ, the MAX6070AAUT30+T uniquely balances ultra-low drift, filter-enabled noise suppression, force/sense accuracy, and micropower operation-making it optimal for field-deployed industrial transmitters requiring both precision and longevity.
Availability
MAX6070AAUT30+T is available at Aetrix Electronics and suitable for high-accuracy industrial and process control, precision instrumentation, and automotive sensor modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6070AAUT30+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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX6070 series belongs to Analog Devices' precision voltage reference product line, engineered specifically for applications demanding sub-0.1% total error over temperature, time, and load-such as factory automation sensors and medical diagnostic equipment.
FAQ
What is the maximum load current supported by the MAX6070AAUT30+T?
The MAX6070AAUT30+T can source and sink up to ±10mA of load current while maintaining specified accuracy and stability. This capability allows it to drive ADC reference inputs, op-amp bias networks, and small current-sense resistors directly-eliminating the need for external buffers in many 3.0V precision signal chains. At 10mA, dropout remains below 150mV across the full temperature range.
How does the FILTER pin on the MAX6070AAUT30+T improve system performance?
The FILTER pin on the MAX6070AAUT30+T accepts an external 0.1µF capacitor to ground, reducing high-frequency thermal noise (10Hz–10kHz) from 9µVRMS to 6µVRMS. This directly improves effective resolution in FFT-based measurement systems and prevents noise aliasing in undersampled ADC architectures. Unlike passive RC filters, this integrated feature maintains DC accuracy and settling time integrity.
Is the MAX6070AAUT30+T suitable for automotive applications?
Yes-the MAX6070AAUT30+T is AEC-Q100 qualified for Grade 1 (–40°C to +125°C) operation and undergoes rigorous stress testing including HTOL, TC, and ESD. Its 6ppm/°C max drift, 40ppm long-term stability, and 78dB 60Hz ripple rejection make it appropriate for engine control unit (ECU) sensor interfaces, battery management system (BMS) voltage monitoring, and ADAS radar front-end references.
What is the purpose of the separate OUTF and OUTS pins on the MAX6070AAUT30+T?
The MAX6070AAUT30+T uses separate OUTF (force) and OUTS (sense) pins to implement a Kelvin connection, compensating for voltage drop across PCB traces or connectors between the reference and load. By routing the feedback path (OUTS) directly to the load ground, the device maintains ±0.04% output accuracy even with 100mΩ series resistance-critical for 4–20mA loop calibrators and high-side current sensing.
Does the MAX6070AAUT30+T require an external capacitor on the output?
Yes-the MAX6070AAUT30+T requires a minimum 0.1µF ceramic capacitor from OUTF to GNDF for stability, with recommended values up to 10µF for improved transient response and PSRR. This capacitor must be placed as close as possible to the OUTF and GNDF pins. The device remains stable across this full range without additional compensation components-simplifying layout in space-constrained industrial PCBs.
MAX6070AAUT30+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SOT-23-6
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.04%
- Temperature Coefficient:
- 6ppm/°C
- Noise - 0.1Hz to 10Hz:
- 4.6µVp-p
- Noise - 10Hz to 10kHz:
- 5µVrms
- Voltage - Input:
- 3.2V ~ 5.5V
- Current - Supply:
- 300µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6070AAUT30+T FAQ
1.How can I place an order for MAX6070AAUT30+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6070AAUT30+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 MAX6070AAUT30+T reliable?
The price and inventory of MAX6070AAUT30+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6070AAUT30+T is usually 5 days.
3.What payment methods are accepted for MAX6070AAUT30+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6070AAUT30+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6070AAUT30+T?
MAX6070AAUT30+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6070AAUT30+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 MAX6070AAUT30+T?
For technical support, including MAX6070AAUT30+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6070AAUT30+T requirements.
6.How does Aetrix verify that MAX6070AAUT30+T is sourced from the original manufacturer or authorized distributors?
All MAX6070AAUT30+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 MAX6070AAUT30+T meets industry standards.
7.What is the process for return or replacement of MAX6070AAUT30+T?
All MAX6070AAUT30+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6070AAUT30+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 MAX6070AAUT30+T part is unused and in its original packaging.
Return procedure for MAX6070AAUT30+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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