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Analog Devices Inc. ADR512ARTZ-REEL7
- Part No.:
- ADR512ARTZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ADR512ARTZ-REEL7.pdf
- Description:
- IC VREF SHUNT 0.3% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,086
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Product details
Overview
ADR512ARTZ-REEL7 from Analog Devices is a precision 1.200 V shunt voltage reference in a 3 mm × 3 mm SOT-23 package, delivering ±0.3% initial accuracy, 60 ppm/°C temperature coefficient, 4 µVp-p (0.1 Hz to 10 Hz) output noise, and stable operation from 100 µA to 10 mA supply current. It serves as a low-noise, space-constrained reference for high-resolution data converters in portable medical instruments and battery-powered GPS devices.
For engineers reviewing the ADR512ARTZ-REEL7 datasheet, ADR512ARTZ-REEL7 pinout, ADR512ARTZ-REEL7 application, or ADR512ARTZ-REEL7 equivalent, this page provides verified specifications, validated pin functions, confirmed operating conditions across −40°C to +85°C, and real-world implementation guidance for precision analog signal chains.
Technical Context
The ADR512ARTZ-REEL7 operates as a two-terminal shunt reference requiring an external bias resistor (RBIAS) to set total current through the device and load. Its TRIM/NC pin supports ±0.5% output voltage adjustment without degrading temperature coefficient.
It achieves ultralow noise via internal bandgap design and requires no external capacitor for stability-yet remains compatible with any capacitive load. Turn-on settling time is 10 µs to within 0.1% of final output, and dynamic output impedance is ≤0.3 Ω at 1 mA ±100 µA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.200 V ±3.5 mV (±0.3%) at 25°C - sets absolute scaling for ADC/DAC full-scale range |
| Temp. Coefficient | 60 ppm/°C max over −40°C to +85°C - ensures ≤0.72 mV drift across industrial temperature range |
| Noise (0.1–10 Hz) | 4 µVp-p - enables <16-bit effective resolution in precision data acquisition systems |
| Operating Current | 100 µA to 10 mA - supports ultra-low-power sensor nodes and high-current reference buffers |
| Dynamic Impedance | ≤0.3 Ω - minimizes load-induced output variation during fast transient current demands |
| Turn-On Settling | 10 µs to 0.1% - allows rapid power cycling in duty-cycled portable instrumentation |
Pinout & Package
Package: 3-lead SOT-23 (RT-3), JEDEC TO-236-AB compliant, 3.04 mm × 2.90 mm × 1.12 mm body size.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Anode / Cathode connection point (shunt configuration) | Connected to system ground when used as negative reference; tied to load return in standard configuration |
| V− | Cathode / Reference output terminal | Delivers regulated 1.200 V relative to V+; must be biased via RBIAS from higher supply rail |
| TRIM/NC | Adjustment node / No-connect | Accepts external potentiometer for ±0.5% output trim; left unconnected if not used (no pull-up/down required) |
Key Features
| Feature | Design Value |
|---|---|
| No external capacitor needed | Stable under all capacitive loads - eliminates BOM count and layout sensitivity in space-constrained designs |
| Ultralow 4 µVp-p noise | Enables sub-LSB noise floor in 12–16-bit SAR and sigma-delta converters without post-filtering |
| ±0.5% output trim capability | Compensates for system-level gain errors (e.g., op amp offset, resistor tolerance) without recalibration |
| 100 µA minimum operating current | Supports >10-year battery life in coin-cell–powered IoT sensors with periodic wake-up sampling |
| −40°C to +85°C operation | Validated performance across full industrial temperature range - no derating required |
Applications
| Portable Medical Sensors | Precision Data Converters |
|---|---|
Use Scenario: Continuous glucose monitor (CGM) with integrated 14-bit ADC sampling analog electrochemical sensor output. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 1.200 V full-scale reference for ratiometric sensor measurement. Use Value: 60 ppm/°C tempco and 4 µVp-p noise ensure <0.01% measurement error across body temperature range (32–42°C). |
Use Scenario: Battery-powered handheld multimeter using AD7533 10-bit multiplying DAC for autoranging reference selection. IC Role / Device Role / Timing Role: External negative reference (−1.2 V) for DAC REF input enabling positive output swing. Use Value: TRIM/NC pin allows factory calibration to cancel DAC INL error; SOT-23 footprint saves PCB area vs. SOIC alternatives. |
| Battery-Powered GPS Receivers | Industrial Process Transmitters |
Use Scenario: Low-power GNSS module with cold-start acquisition requiring stable LNA bias and ADC reference during intermittent operation. IC Role / Device Role / Timing Role: Primary voltage reference for 12-bit SAR ADC digitizing RF front-end DC offsets and temperature compensation signals. Use Value: 100 µA min current enables operation from 3.3 V Li-ion cell down to 2.8 V; 10 µs turn-on supports burst-mode sampling. |
Use Scenario: 4–20 mA loop-powered pressure transmitter with HART digital overlay, using 16-bit ΣΔ ADC for sensor linearization. IC Role / Device Role / Timing Role: Precision shunt reference for excitation current source and ADC reference in isolated analog front end. Use Value: 0.3 Ω dynamic impedance prevents reference droop during 4–20 mA loop transients; −40°C to +85°C rating matches field environment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF1912ASTT1G | 1.25 V nominal output, ±0.2% initial accuracy, 50 ppm/°C tempco, 15 µVp-p noise, SOT-23-3 | Higher output voltage limits use in 1.2 V–biased circuits; higher noise impacts 16-bit+ resolution | Select when 1.25 V reference is acceptable and tighter initial accuracy outweighs noise penalty |
| MAX6126AASA12+ | 1.20 V output, ±0.06% initial accuracy, 3 ppm/°C tempco, 10 µVp-p noise, 8-pin SOIC | Larger SOIC-8 package increases board area; superior tempco but higher cost and noise than ADR512ARTZ-REEL7 | Choose for metrology-grade systems where long-term stability justifies size and cost premium |
Compared with REF1912ASTT1G and MAX6126AASA12+, the ADR512ARTZ-REEL7 offers optimal balance of 1.200 V exact output, ultralow noise, SOT-23 compactness, and industrial temperature support-making it preferred for portable, battery-sensitive, and space-constrained precision analog designs.
Availability
ADR512ARTZ-REEL7 is available at Aetrix Electronics and suitable for precision data acquisition systems, battery-powered GPS receivers, and portable medical instruments requiring stable component supply, consistent parametric performance, and reliable long-term sourcing.
Supply support for ADR512ARTZ-REEL7 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, headquartered in Norwood, MA, serving industrial, automotive, communications, and healthcare markets.
The ADR512 belongs to Analog Devices' precision voltage reference product line, engineered specifically for low-noise, low-power, space-constrained applications including portable instrumentation, precision data converters, and battery-operated sensor interfaces.
FAQ
What is the maximum reverse current rating for the ADR512ARTZ-REEL7?
The ADR512ARTZ-REEL7 has an absolute maximum reverse current rating of 25 mA, as specified in its Absolute Maximum Ratings table. Exceeding this value risks permanent damage. In normal operation, the device draws 100 µA to 10 mA through its V− terminal, with current set by the external bias resistor. The ADR512ARTZ-REEL7 must never be subjected to forward conduction beyond 20 mA.
Can the ADR512ARTZ-REEL7 be used to generate a negative reference voltage?
Yes, the ADR512ARTZ-REEL7 can configure a precise −1.2 V reference by connecting its V+ pin to system ground and its V− pin to a negative supply rail (e.g., −VDD) through a bias resistor. This exploits its shunt architecture: the cathode (V−) sits 1.2 V above the anode (V+). When V+ is grounded, V− becomes −1.2 V. The ADR512ARTZ-REEL7 maintains full spec compliance in this configuration.
Does the TRIM/NC pin on the ADR512ARTZ-REEL7 require external circuitry to function?
The TRIM/NC pin on the ADR512ARTZ-REEL7 is optional: it may be left unconnected (NC) with no impact on baseline operation. When used for trimming, it accepts a mechanical or digital potentiometer to adjust output voltage ±0.5% without affecting temperature coefficient. No external amplifier, capacitor, or bias network is required - only a three-terminal potentiometer between V+, V−, and TRIM/NC.
What is the thermal hysteresis specification for the ADR512ARTZ-REEL7?
The ADR512ARTZ-REEL7 exhibits 50 ppm thermal hysteresis, defined as the output voltage change after cycling from +25°C → −40°C → +85°C → +25°C. This value reflects real-world repeatability in temperature-varying environments and is independent of the 60 ppm/°C temperature coefficient. It is measured per unit and represents typical behavior across production lots.
Is an external capacitor required for stability with the ADR512ARTZ-REEL7?
No external capacitor is required for stability with the ADR512ARTZ-REEL7. Its internal design ensures unconditional stability across all capacitive loads, including zero capacitance. An optional output capacitor may be added solely for additional noise filtering - it does not affect loop stability. This eliminates layout constraints and reduces bill-of-materials count compared to older shunt references.
ADR512ARTZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Shunt
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 1.2V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.3%
- Temperature Coefficient:
- 60ppm/°C
- Noise - 0.1Hz to 10Hz:
- 4µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 100 µA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
ADR512ARTZ-REEL7 FAQ
1.How can I place an order for ADR512ARTZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADR512ARTZ-REEL7 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 ADR512ARTZ-REEL7 reliable?
The price and inventory of ADR512ARTZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADR512ARTZ-REEL7 is usually 5 days.
3.What payment methods are accepted for ADR512ARTZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADR512ARTZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADR512ARTZ-REEL7?
ADR512ARTZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADR512ARTZ-REEL7 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 ADR512ARTZ-REEL7?
For technical support, including ADR512ARTZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADR512ARTZ-REEL7 requirements.
6.How does Aetrix verify that ADR512ARTZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All ADR512ARTZ-REEL7 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 ADR512ARTZ-REEL7 meets industry standards.
7.What is the process for return or replacement of ADR512ARTZ-REEL7?
All ADR512ARTZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADR512ARTZ-REEL7, 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 ADR512ARTZ-REEL7 part is unused and in its original packaging.
Return procedure for ADR512ARTZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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