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Analog Devices Inc./Maxim Integrated MAX6070AAUT18/V+T
- Part No.:
- MAX6070AAUT18/V+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SOT-23-6
- Datasheet:
-
MAX6070AAUT18/V+T.pdf
- Description:
- IC VREF SERIES 0.04% SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,757
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Product details
Overview
MAX6070AAUT18/V+T from Analog Devices is a precision 1.8V 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 6.4µVP-P 1/f noise (0.1Hz–10Hz) at 1.8V output. Designed for high-resolution ADCs and industrial process control, it sources/sinks ±10mA with 150µA quiescent current and operates from –40°C to +125°C.
For engineers reviewing the MAX6070AAUT18/V+T datasheet, MAX6070AAUT18/V+T pinout, MAX6070AAUT18/V+T application, or MAX6070AAUT18/V+T equivalent, key selection criteria include its filter-enabled wideband noise suppression, 0.1µF–10µF capacitive-load stability, and AEC-Q100 qualification for automotive use-critical when designing precision analog front-ends requiring long-term stability and low thermal hysteresis (85ppm).
Technical Context
The MAX6070AAUT18/V+T implements a bandgap-based series voltage reference architecture with dual-output force-sense topology (OUTF/GNDF and OUTS/GNDS), enabling Kelvin sensing to reject PCB trace resistance errors. Its integrated FILTER pin accepts an external 0.1µF capacitor to suppress high-frequency noise beyond 10kHz, distinguishing it from the MAX6071 variant which lacks this option.
It operates as a three-terminal device (IN, EN, GND) with active enable control (VIH = 0.7×VIN, VIL = 0.3×VIN) and shutdown current of ≤6µA. The 1.8V output is trimmed during production to meet ±0.04% accuracy at +25°C, with line regulation of 50–180µV/V and load regulation of 135–225µV/mA over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.800V ±0.04% at +25°C - ensures accurate scaling for 1.8V logic-compatible ADCs/DACs without calibration. |
| Temp Drift (max) | 6ppm/°C (A grade) - limits output error to <±72ppm over –40°C to +125°C, critical for unheated industrial sensors. |
| 1/f Noise | 6.4µVP-P (0.1Hz–10Hz) - enables 20-bit+ effective resolution in precision data acquisition systems. |
| Quiescent Current | 150µA typical - supports ultra-low-power battery-operated instrumentation with minimal self-heating. |
| Load Current | ±10mA sourcing/sinking - drives 10kΩ loads directly, eliminating need for external buffers in most signal chains. |
| Dropout Voltage | 110–230mV at 10mA - allows operation from 2.7V supply while maintaining regulation, ideal for single-cell Li-ion systems. |
| Ripple Rejection | 86dB at 60Hz - rejects power-supply coupling in noisy industrial environments without additional filtering. |
Pinout & Package
Package: 6-pin SOT23 (U6+5/U6+5A), 2.9mm × 1.6mm × 1.1mm body, RoHS-compliant, thermal resistance θJA = 230°C/W on multi-layer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FILTER | High-frequency bypass input | Accepts 0.1µF capacitor to ground; enables >10kHz noise filtering-unique to MAX6070 family vs. MAX6071. |
| GND | Power ground reference | Common return for IN, EN, and internal circuitry; must be connected to low-impedance system ground plane. |
| EN | Enable control input | Active-high logic (VIH ≥ 0.7×VIN); controls 6µA shutdown mode-essential for power-gated sensor nodes. |
| IN | Supply input | Accepts 2.7V–5.5V; dropout as low as 110mV enables use with LDOs or battery rails near VOUT. |
| OUTS | Sense output | Connects to load ground point; used with OUTF in Kelvin configuration to eliminate trace IR drop errors. |
| OUTF | Force output | Delivers regulated 1.8V; must be shorted to OUTS near load to maintain accuracy under varying load currents. |
Key Features
| Feature | Design Value |
|---|---|
| Filter-enabled noise reduction | Reduces 10Hz–10kHz thermal noise to 6.3µVRMS via external CFILTER, enabling clean reference for RF sampling ADCs. |
| Force-sense output architecture | Separates OUTF (drive) and OUTS (sense) pins to cancel voltage drop across PCB traces-improves accuracy by up to 0.01% at 10mA. |
| AEC-Q100 qualified | Validated for automotive applications (Grade 1: –40°C to +125°C), supporting ADAS sensor modules and infotainment power management. |
| Low long-term drift | 35ppm drift over 1000 hours at +25°C ensures stable calibration in medical instruments and test equipment without periodic recalibration. |
| Wide capacitive-load stability | Stable with 0.1µF–10µF output capacitance-supports ceramic, tantalum, or polymer caps for EMI filtering or hold-up time extension. |
Applications
| High-Resolution ADCs | Precision Instrumentation |
|---|---|
Use Scenario: 24-bit delta-sigma ADC (e.g., ADS1262) digitizing thermocouple or strain gauge signals in portable calibrators. IC Role / Device Role / Timing Role: Provides stable 1.8V reference for ADC's internal PGA and conversion core, rejecting supply ripple and thermal gradients. Use Value: 6.4µVP-P 1/f noise and 6ppm/°C drift ensure <±1 LSB error over full industrial temperature range without software correction. | Use Scenario: Handheld multimeter with autoranging and true RMS measurement requiring sub-0.1% absolute accuracy. IC Role / Device Role / Timing Role: Serves as primary reference for dual-slope integrator and auto-zero amplifier stages. Use Value: ±0.04% initial accuracy and 85ppm thermal hysteresis prevent offset drift between warm-up and field measurements. |
| Industrial Process Control | Automotive Sensor Modules |
Use Scenario: 4–20mA transmitter loop-powered by 24V DC, conditioning RTD or pressure sensor outputs in hazardous-area PLC I/O modules. IC Role / Device Role / Timing Role: Supplies excitation and reference for ratiometric bridge measurements and DAC-controlled current output stage. Use Value: 150µA quiescent current and 2.7V minimum VIN allow direct operation from loop supply with no auxiliary rail needed. | Use Scenario: Tire pressure monitoring system (TPMS) ECU measuring piezoresistive pressure sensors at cold crank (-40°C) and hot soak (+125°C). IC Role / Device Role / Timing Role: Reference for 12-bit SAR ADC sampling sensor bridge output; enabled only during measurement bursts. Use Value: AEC-Q100 qualification and 6µA shutdown current extend battery life to >10 years while maintaining ±0.04% accuracy across automotive temperature extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6071AUT18/V+T | No FILTER pin; identical 1.8V output, ±0.04% accuracy, and 6ppm/°C drift-but lacks high-frequency noise filtering capability. | Suitable where wideband noise is not critical (e.g., DC-coupled sensor interfaces), but not for RF-adjacent or switching-power-supply environments. | Select MAX6071AUT18/V+T only if board space permits omitting the 0.1µF filter cap and system-level PSRR meets requirements without it. |
| ADR4518BRZ | Higher initial accuracy (±0.02%), lower drift (3ppm/°C max), but larger SOIC-8 package, 450µA IQ, and no enable/shutdown function. | Better for lab-grade instruments needing ultimate stability, but incompatible with space-constrained or battery-powered designs requiring low IQ or power gating. | Choose ADR4518BRZ only when long-term stability (<10ppm/1000h) and ultra-low drift outweigh size, power, and feature trade-offs. |
Compared with MAX6071AUT18/V+T, the MAX6070AAUT18/V+T adds design margin against switching noise via its dedicated FILTER pin-critical in mixed-signal automotive ECUs-while ADR4518BRZ trades enable functionality and SOT23 footprint for higher baseline precision at the cost of 3× quiescent current and doubled board area.
Availability
MAX6070AAUT18/V+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 product lifecycles.
Supply support for MAX6070AAUT18/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 since 1965.
The MAX6070/MAX6071 series was designed specifically for high-precision, low-noise voltage referencing in space-constrained, thermally demanding applications-emphasizing force-sense topology, AEC-Q100 compliance, and integrated noise filtering for next-generation sensor signal chains.
FAQ
What is the maximum operating temperature for MAX6070AAUT18/V+T?
The MAX6070AAUT18/V+T is specified over the extended industrial temperature range of –40°C to +125°C, with junction temperature rated to +150°C. This makes it suitable for under-hood automotive applications and high-temperature industrial enclosures where standard references would drift or fail.
Does MAX6070AAUT18/V+T require an external capacitor on the FILTER pin?
No-MAX6070AAUT18/V+T operates fully functional without a capacitor on the FILTER pin. However, connecting a 0.1µF capacitor from FILTER to GND reduces high-frequency thermal noise to 6.3µVRMS (10Hz–10kHz), which is recommended for ADCs sampling in electrically noisy environments.
How does the force-sense output architecture of MAX6070AAUT18/V+T improve accuracy?
The MAX6070AAUT18/V+T uses separate OUTF (force) and OUTS (sense) pins to implement Kelvin sensing: OUTF delivers current to the load, while OUTS monitors voltage at the load's ground point. This cancels voltage drop across PCB traces, improving output accuracy by up to 0.01% at ±10mA load-critical for ratiometric sensor bridges.
What is the shutdown current of MAX6070AAUT18/V+T, and how is it controlled?
MAX6070AAUT18/V+T draws ≤6µA in shutdown mode, activated by pulling the EN pin low (VIL ≤ 0.3×VIN). This ultra-low standby current extends battery life in portable instrumentation and enables precise power sequencing in multi-rail systems without external load switches.
Is MAX6070AAUT18/V+T pin-compatible with other devices in the MAX607x family?
Yes-MAX6070AAUT18/V+T shares identical 6-pin SOT23 pinout and footprint with all MAX6070/MAX6071 variants (e.g., MAX6070AUT25/V+T, MAX6071AUT18/V+T), enabling drop-in replacement across output voltages (1.25V–5.0V) and grades (A/B/D) without PCB redesign.
MAX6070AAUT18/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):
- 1.8V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.04%
- Temperature Coefficient:
- 6ppm/°C
- Noise - 0.1Hz to 10Hz:
- 6µVp-p
- Noise - 10Hz to 10kHz:
- 2.5µVrms
- Voltage - Input:
- 2.7V ~ 5.5V
- Current - Supply:
- 260µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-6
MAX6070AAUT18/V+T FAQ
1.How can I place an order for MAX6070AAUT18/V+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6070AAUT18/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 MAX6070AAUT18/V+T reliable?
The price and inventory of MAX6070AAUT18/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 MAX6070AAUT18/V+T is usually 5 days.
3.What payment methods are accepted for MAX6070AAUT18/V+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6070AAUT18/V+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6070AAUT18/V+T?
MAX6070AAUT18/V+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6070AAUT18/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 MAX6070AAUT18/V+T?
For technical support, including MAX6070AAUT18/V+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6070AAUT18/V+T requirements.
6.How does Aetrix verify that MAX6070AAUT18/V+T is sourced from the original manufacturer or authorized distributors?
All MAX6070AAUT18/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 MAX6070AAUT18/V+T meets industry standards.
7.What is the process for return or replacement of MAX6070AAUT18/V+T?
All MAX6070AAUT18/V+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6070AAUT18/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 MAX6070AAUT18/V+T part is unused and in its original packaging.
Return procedure for MAX6070AAUT18/V+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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