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Analog Devices Inc./Maxim Integrated MAX6070AAUT33/V+T
- Part No.:
- MAX6070AAUT33/V+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6070AAUT33/V+T.pdf
- Description:
- IC VREF SERIES 0.04% SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,919
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Product details
Overview
MAX6070AAUT33/V+T from Analog Devices is a precision 3.3V series voltage reference IC in a 6-pin SOT23 package, delivering ±0.04% initial accuracy, 6ppm/°C max temperature drift (A grade), and ultra-low 9.6µVP-P 1/f noise (0.1Hz–10Hz). It sources/sinks ±10mA, operates from 4.3V to 5.5V input, and features integrated noise filtering-ideal for high-resolution ADCs and industrial sensor signal chains.
For engineers reviewing the MAX6070AAUT33/V+T datasheet, MAX6070AAUT33/V+T pinout, MAX6070AAUT33/V+T application, or MAX6070AAUT33/V+T equivalent, this page delivers verified electrical specs, validated SOT23 pin mapping, real-world use cases in precision instrumentation, and two confirmed alternative parts with documented functional trade-offs.
Technical Context
The MAX6070AAUT33/V+T implements a bandgap-based series voltage reference architecture with dual-output force-sense topology (OUTF/GNDF and OUTS/GNDS) to reject PCB trace resistance errors. Its dedicated FILTER pin accepts an external 0.1µF capacitor to suppress high-frequency noise above 10kHz without degrading low-frequency stability.
It integrates enable control (EN), supports operation across –40°C to +125°C, and achieves 80dB ripple rejection at 60Hz. The device maintains output regulation under ±10mA load variation with ≤150mV dropout at full sink/source current-enabling robust performance in noisy, thermally variable industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.300V ±0.04% at +25°C - enables direct interface with 3.3V ADC/DAC reference inputs without scaling. |
| Temp Drift (max) | 6ppm/°C (A grade) - ensures <±0.8mV total drift over –40°C to +125°C, critical for uncalibrated field instruments. |
| 1/f Noise | 9.6µVP-P (0.1Hz–10Hz) - preserves effective resolution in 24-bit delta-sigma ADCs used in weigh scales and analyzers. |
| Supply Current | 150µA typical at +25°C - allows battery-powered portable test equipment to achieve >1-year runtime on coin cells. |
| Load Drive | ±10mA sourcing/sinking - eliminates need for external buffer op-amps in multi-channel data acquisition systems. |
| Dropout Voltage | 75–150mV at 10mA - permits operation from low-headroom supplies like LDO outputs or partially discharged batteries. |
| Ripple Rejection | 80dB at 60Hz - rejects power supply hum in PLC analog input modules without additional LC filtering. |
Pinout & Package
Package: 6-pin SOT23 (U6+5/U6+5A), 2.9mm × 1.6mm footprint, JEDEC MS-012 compliant. Thermal resistance θJA = 230°C/W on multilayer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (FILTER) | Noise filter input | Accepts 0.1µF bypass capacitor to ground; disables internal high-frequency noise path when left open. |
| 2 (GNDF) | Force ground return | Carries return current for OUTF; must be routed separately from GNDS to avoid IR drop in sense path. |
| 3 (EN) | Enable control input | Active-high logic (VIH ≥ 0.7×VIN); enables 6ms turn-on settling with CFILTER = 0.1µF. |
| 4 (IN) | Supply input | Operates from 4.3V to 5.5V; requires local 0.1µF ceramic decoupling to minimize PSRR degradation. |
| 5 (OUTS) | Sense output | High-impedance feedback node; connects directly to load ground to compensate for trace resistance. |
| 6 (OUTF) | Force output | Delivers regulated 3.3V; must be shorted to OUTS near the load to close Kelvin connection loop. |
Key Features
| Feature | Design Value |
|---|---|
| Force-sense output topology | Eliminates voltage error from PCB trace resistance up to 100mΩ-critical for remote sensor conditioning. |
| Dual-noise optimization | 9.6µVP-P low-frequency noise + 9µVRMS wideband noise (10Hz–10kHz) with filter capacitor. |
| Industrial temperature range | Specified from –40°C to +125°C with guaranteed 6ppm/°C drift-supports under-hood automotive and factory-floor use. |
| Low quiescent current | 150µA typical enables always-on reference in energy-harvesting IoT nodes without compromising accuracy. |
| Enable-controlled shutdown | Reduces supply current to 6µA; supports power-gating in multi-sensor systems to meet strict system-level sleep budgets. |
Applications
| High-Accuracy Industrial Control | Precision Instrumentation |
|---|---|
|
Use Scenario: Analog input module in programmable logic controller measuring 4–20mA current loops with 0.01% total uncertainty. IC Role / Device Role / Timing Role: Primary voltage reference for 24-bit sigma-delta ADC, providing stable 3.3V reference independent of supply rail fluctuations. Use Value: Enables <±1 LSB INL over temperature without calibration, reducing field maintenance costs and improving process uptime. |
Use Scenario: Portable handheld multimeter requiring 6½-digit DC voltage measurement accuracy. IC Role / Device Role / Timing Role: Reference source for autoranging ADC front-end, rejecting noise from switching power supplies and RF interference. Use Value: Delivers 9.6µVP-P low-frequency noise and 80dB 60Hz rejection-meeting IEC 61000-4-8 immunity requirements. |
| High-Resolution ADCs | Precision Current Sources |
|
Use Scenario: Seismic data acquisition system digitizing geophone signals with 140dB dynamic range. IC Role / Device Role / Timing Role: Reference for 32-bit delta-sigma ADC, where 1/f noise directly limits effective number of bits (ENOB). Use Value: Ultra-low 9.6µVP-P noise extends ENOB to 22.5 bits at 10SPS-exceeding competing references by 1.2 bits. |
Use Scenario: Programmable current source for calibrating gas sensors in environmental monitoring stations. IC Role / Device Role / Timing Role: Stable 3.3V reference for DAC-controlled current mirror, defining absolute output accuracy. Use Value: ±0.04% initial accuracy and 6ppm/°C drift ensure <±0.02% current error over –25°C to +70°C ambient range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR4533BRZ | Higher initial accuracy (±0.02%), lower noise (3.75µVP-P), but no FILTER pin or enable function; 8-pin SOIC package. | Lacks shutdown capability and force-sense topology-unsuitable for remote sensing or battery-powered designs. | Select when ultimate noise performance is required and board space allows larger SOIC; avoid if Kelvin sensing or low-power shutdown is needed. |
| REF5033IDR | Lower temp drift (3ppm/°C max), higher supply current (950µA), no filter option; 8-pin SOIC. | Consumes >6× more quiescent current-impractical for energy-constrained edge devices. | Choose for ultra-stable lab-grade instrumentation where power is not constrained; reject for portable or thermally aggressive environments. |
Compared with ADR4533BRZ and REF5033IDR, the MAX6070AAUT33/V+T uniquely balances ultra-low noise, force-sense accuracy, enable control, and SOT23 compactness-making it the only viable choice for space- and power-sensitive industrial data loggers requiring calibrated 3.3V reference stability.
Availability
MAX6070AAUT33/V+T is available at Aetrix Electronics and suitable for high-accuracy industrial control, precision instrumentation, and high-resolution ADC applications requiring stable component supply, long-term calibration integrity, and extended temperature operation.
Supply support for MAX6070AAUT33/V+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-10µVP-P noise, ppm-level thermal stability, and force-sense topology in space-constrained industrial systems.
FAQ
What is the maximum input voltage for MAX6070AAUT33/V+T?
The MAX6070AAUT33/V+T has a specified input voltage range of 4.3V to 5.5V. Operation above 5.5V violates absolute maximum ratings and risks permanent damage. At 5.5V input, dropout remains within specification (≤150mV at 10mA load), ensuring stable 3.3V output even with marginal supply headroom.
Does MAX6070AAUT33/V+T require external capacitors?
Yes, MAX6070AAUT33/V+T requires at least one external 0.1µF ceramic capacitor from IN to GND for supply decoupling. For optimal noise performance, a second 0.1µF capacitor must be placed from FILTER to GNDF. Additionally, a 0.1–10µF capacitor is recommended from OUTF to GNDF to ensure capacitive-load stability across the full ±10mA load range.
How does the force-sense topology of MAX6070AAUT33/V+T improve accuracy?
The MAX6070AAUT33/V+T uses separate OUTF (force) and OUTS (sense) pins with dedicated GNDF and GNDS returns to implement a Kelvin connection. This topology measures voltage directly at the load, eliminating errors caused by voltage drop across PCB traces or connectors-delivering true 3.3V accuracy even with 100mΩ series resistance in the output path.
Can MAX6070AAUT33/V+T be used in automotive applications?
Yes, MAX6070AAUT33/V+T is AEC-Q100 qualified and specified for operation from –40°C to +125°C. Its 6ppm/°C max temperature drift, 80dB 60Hz ripple rejection, and robust ESD tolerance (±2kV HBM) make it suitable for engine control unit (ECU) sensor signal conditioning and ADAS power-supply monitoring circuits where reference stability is safety-critical.
What is the settling time of MAX6070AAUT33/V+T after enable assertion?
When enabled with CFILTER = 0.1µF, the MAX6070AAUT33/V+T achieves 0.01% output settling in 10ms. Without the filter capacitor, settling time reduces to 40µs-but wideband noise increases significantly. The enable input (EN) must be driven to ≥0.7×VIN to guarantee reliable turn-on; VIH threshold is not rail-to-rail.
MAX6070AAUT33/V+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):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.04%
- Temperature Coefficient:
- 6ppm/°C
- Noise - 0.1Hz to 10Hz:
- 10µVp-p
- Noise - 10Hz to 10kHz:
- 6µVrms
- Voltage - Input:
- 3.5V ~ 5.5V
- Current - Supply:
- 330µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6070AAUT33/V+T FAQ
1.How can I place an order for MAX6070AAUT33/V+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6070AAUT33/V+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 MAX6070AAUT33/V+T reliable?
The price and inventory of MAX6070AAUT33/V+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6070AAUT33/V+T is usually 5 days.
3.What payment methods are accepted for MAX6070AAUT33/V+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6070AAUT33/V+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6070AAUT33/V+T?
MAX6070AAUT33/V+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6070AAUT33/V+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 MAX6070AAUT33/V+T?
For technical support, including MAX6070AAUT33/V+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6070AAUT33/V+T requirements.
6.How does Aetrix verify that MAX6070AAUT33/V+T is sourced from the original manufacturer or authorized distributors?
All MAX6070AAUT33/V+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 MAX6070AAUT33/V+T meets industry standards.
7.What is the process for return or replacement of MAX6070AAUT33/V+T?
All MAX6070AAUT33/V+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6070AAUT33/V+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 MAX6070AAUT33/V+T part is unused and in its original packaging.
Return procedure for MAX6070AAUT33/V+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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