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Analog Devices Inc. AD586KR
- Part No.:
- AD586KR
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD586KR.pdf
- Description:
- IC VREF SERIES 0.1% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,219
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Product details
Overview
AD586KR from Analog Devices is a precision 5.000 V ±5 mV buried Zener voltage reference IC in an 8-lead SOIC package, featuring 15 ppm/°C max temperature coefficient over 0°C to 70°C, 100 nV/√Hz noise spectral density, and ±100 µV/V line regulation - deployed as the primary reference for 12- to 16-bit DACs and high-accuracy ADCs in test instrumentation and data acquisition systems.
For engineers reviewing the AD586KR datasheet, AD586KR pinout, AD586KR application, or AD586KR equivalent, key selection considerations include initial accuracy (±5 mV), low-drift performance across industrial temperature range, noise reduction capability via external capacitor on Pin 8, output sourcing/sinking up to ±10 mA, and compatibility with standard 5 V reference layouts requiring no PCB redesign.
Technical Context
The AD586KR implements a proprietary ion-implanted buried Zener diode combined with laser-trimmed thin-film resistors to achieve superior long-term stability (15 ppm/1000 hr) and low thermal drift versus bandgap alternatives. Its internal buffer amplifier enables bidirectional load drive while maintaining <4 µV p-p (0.1 Hz–10 Hz) output noise.
Pin 8 provides dedicated noise reduction functionality via external 1 µF capacitor to ground, forming a low-pass filter that reduces broadband noise to ~160 µV p-p (1 MHz). Pin 5 supports optional fine trim to adjust output by ±6% for system-level calibration or binary-scaled references like 5.12 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000 V ±5 mV at 25°C - ensures direct replacement of legacy 5 V references without recalibration in existing 12-bit+ converter designs. |
| Temp Coefficient | 15 ppm/°C max (0°C to 70°C) - guarantees total error ≤ ±0.525 mV across full operating range, critical for metrology-grade measurements. |
| Noise Density | 100 nV/√Hz at 100 Hz - enables high-resolution digitization without added filtering in 16-bit SAR ADC front-ends. |
| Load Regulation | 100 µV/mA (sourcing, 0–10 mA) - maintains reference integrity under dynamic DAC current draw without output sag. |
| Line Regulation | ±100 µV/V (10.8–36 V input) - rejects supply ripple in unregulated or battery-derived power rails. |
| Quiescent Current | 2–3 mA - supports low-power portable instrumentation with minimal thermal loading on PCB. |
| Short-Circuit Current | 45–60 mA - provides robust fault tolerance during board bring-up or transient overload conditions. |
Pinout & Package
AD586KR is housed in an 8-lead SOIC (R-8) package per JEDEC MS-012AA, with 1.27 mm pitch, 5.00 mm × 4.00 mm body size, and 1.75 mm maximum height. Pin 1 is marked by notch or dot; pins 1, 3, and 7 are factory test points - no external connection permitted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | TP1 | Internal factory trim pad - must remain unconnected; dummy PCB pad only. |
| 2 | VIN | Positive supply input (10.8–36 V); powers buried Zener and buffer amplifier. |
| 3 | TP1 | Internal factory trim pad - must remain unconnected; dummy PCB pad only. |
| 4 | GND | Analog ground reference; return path for Zener bias and output load current. |
| 5 | TRIM | Fine-adjust node for ±6% output scaling using external resistor divider; enables 5.12 V binary reference. |
| 6 | VOUT | Regulated 5.000 V output; capable of sourcing or sinking up to ±10 mA with <100 µV/mA regulation. |
| 7 | TP1 | Internal factory trim pad - must remain unconnected; dummy PCB pad only. |
| 8 | NOISE REDUCTION | Filter node for 1 µF capacitor to ground; reduces 1 MHz noise from 200 µV p-p to 160 µV p-p. |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed accuracy | ±5 mV initial error (K grade) - eliminates need for post-assembly trimming in production test flows. |
| Buried Zener architecture | Lower drift and noise vs. bandgap - delivers 2× better 0.1–10 Hz noise (4 µV p-p) than comparable CMOS references. |
| Noise reduction pin | Dedicated Pin 8 with 1 µF cap cuts high-frequency noise - avoids complex external RC filters in sensitive analog signal chains. |
| Output trim capability | ±6% gain adjustment via Pin 5 - supports system-level calibration and non-standard reference voltages (e.g., 5.12 V). |
| Source/sink current | ±10 mA output drive - directly interfaces with multiple DACs or op-amp buffers without external transistors. |
Applications
| High-Accuracy Data Acquisition | Automated Test Equipment (ATE) |
|---|---|
Use Scenario: 16-bit SAR ADC in benchtop DMM measuring sub-millivolt signals with 10 ppm absolute accuracy requirement. IC Role / Device Role / Timing Role: Primary voltage reference supplying stable 5.000 V to ADC VREF pin; defines full-scale range and LSB weight. Use Value: 15 ppm/°C drift ensures <±0.525 mV error over 0–70°C ambient, meeting EN 61000-4-3 immunity testing margins without recalibration. |
Use Scenario: Multi-channel digital I/O card generating precise 5 V logic thresholds and analog stimulus levels. IC Role / Device Role / Timing Role: Reference for both DAC-based analog output generation and comparator threshold setting. Use Value: Single AD586KR supplies identical 5 V to all channels, eliminating inter-channel gain mismatch caused by discrete references. |
| Precision Instrumentation | Calibration Standards |
Use Scenario: Portable oscilloscope vertical amplifier requiring stable DC offset and gain calibration across temperature. IC Role / Device Role / Timing Role: Reference for programmable gain amplifier (PGA) calibration DAC and offset nulling circuitry. Use Value: 100 nV/√Hz noise floor prevents reference-induced noise folding into 100 MHz bandwidth signal path. |
Use Scenario: Field-deployable calibrator verifying 12-bit sensor transmitter outputs in oil & gas monitoring. IC Role / Device Role / Timing Role: Traceable 5.000 V source used to validate transmitter zero/span against NIST-traceable standards. Use Value: 15 ppm/°C tempco and 15 ppm/1000 hr long-term stability enable 6-month calibration intervals without drift compensation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR441BRZ | 2.5 V output, 1 ppm/°C max drift, 3.5 µV p-p (0.1–10 Hz) noise - lower drift but incompatible voltage level. | Requires level-shifting circuitry for 5 V systems; unsuitable for direct AD586KR drop-in replacement. | Select when ultra-low drift (<1 ppm/°C) justifies redesigning reference distribution network and recalibrating DAC full-scale. |
| REF5050AID | 5.000 V output, 3 ppm/°C max drift, 12 µV p-p (0.1–10 Hz) noise - tighter spec but higher quiescent current (4.5 mA). | Higher power dissipation limits use in thermally constrained portable instruments. | Choose for lab-grade equipment where 3 ppm/°C drift is mandatory and 1.5 mA extra supply current is acceptable. |
Compared with ADR441BRZ and REF5050AID, AD586KR offers optimal balance of 5 V compatibility, 15 ppm/°C drift, sub-5 µV p-p noise, and 2.5 mA quiescent current - making it the preferred choice for cost-sensitive, space-constrained industrial DAQ systems requiring proven field reliability.
Availability
AD586KR is available at Aetrix Electronics and suitable for high-accuracy data acquisition, automated test equipment, and precision instrumentation requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for AD586KR 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, communications, automotive, and consumer markets since 1965.
AD586KR belongs to the AD586 family of buried Zener voltage references engineered specifically for metrology-grade measurement systems, high-resolution converters, and calibration-critical applications demanding low drift, low noise, and long-term stability.
FAQ
What is the maximum input voltage rating for AD586KR?
The AD586KR has an absolute maximum VIN rating of 36 V relative to GND. Operation above 36 V risks permanent damage. For reliable long-term performance, Analog Devices specifies 10.8 V to 36 V as the functional input range, with line regulation tested across this span. The AD586KR draws only 2–3 mA quiescent current, so power dissipation remains well below the 500 mW package limit even at 36 V input.
Can AD586KR be used as a negative reference voltage source?
Yes, AD586KR can generate a precision −5.000 V output by connecting VIN to +6 V to +30 V, grounding VOUT, and tying GND (Pin 4) through a current-limiting resistor to a −15 V supply. This configuration maintains the same 15 ppm/°C temperature coefficient and 15 ppm/1000 hr long-term stability as the standard +5 V mode. Net current through the AD586KR must stay between 2.5 mA and 10.0 mA for proper operation.
Does AD586KR require external components to function?
No, AD586KR operates as a complete 5 V reference with only VIN (Pin 2) and GND (Pin 4) connections required. All trimming, temperature compensation, and buffering are integrated. External components are optional: a 1 µF capacitor on Pin 8 reduces broadband noise, and a resistor divider on Pin 5 enables fine output adjustment. These additions do not affect basic functionality or specification compliance.
What is the turn-on settling time of AD586KR?
AD586KR achieves 0.01% output accuracy in approximately 60 µs with no external capacitor. When a 1 µF noise reduction capacitor is used on Pin 8, turn-on time extends to ~400 ms due to additional RC time constant loading the internal Zener current source. This delay is deterministic and does not impact steady-state accuracy or long-term stability of the AD586KR output.
Is AD586KR compatible with MIL-STD-883 requirements?
AD586KR itself is not a MIL-STD-883-compliant variant; however, Analog Devices offers MIL-STD-883 versions under part numbers such as AD586KR-883B (SOIC) and AD586KQ-883B (CERDIP). These variants undergo screening per Method 5005 and include extended temperature testing, hermetic packaging options, and radiation hardness assurance - all documented in the AD586/883B data sheet separate from the commercial AD586KR specification.
AD586KR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 15ppm/°C
- Noise - 0.1Hz to 10Hz:
- 4µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 10.8V ~ 36V
- Current - Supply:
- 3mA
- Current - Cathode:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD586KR FAQ
1.How can I place an order for AD586KR through Aetrix?
Please submit a Request for Quotation (RFQ) for AD586KR 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 AD586KR reliable?
The price and inventory of AD586KR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD586KR is usually 5 days.
3.What payment methods are accepted for AD586KR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD586KR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD586KR?
AD586KR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD586KR 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 AD586KR?
For technical support, including AD586KR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD586KR requirements.
6.How does Aetrix verify that AD586KR is sourced from the original manufacturer or authorized distributors?
All AD586KR 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 AD586KR meets industry standards.
7.What is the process for return or replacement of AD586KR?
All AD586KR units undergo pre-shipment inspection (PSI). If there is an issue with AD586KR, 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 AD586KR part is unused and in its original packaging.
Return procedure for AD586KR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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