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Analog Devices Inc. AD587KR-REEL
- Part No.:
- AD587KR-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD587KR-REEL.pdf
- Description:
- IC VREF SERIES 0.05% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,578
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Product details
Overview
AD587KR-REEL from Analog Devices is a precision monolithic 10 V voltage reference IC using a buried Zener diode architecture, laser-trimmed for ±5 mV initial accuracy and 10 ppm/°C max temperature coefficient over 0°C to 70°C. It delivers 4 μV p-p (0.1 Hz–10 Hz) output noise, supports up to 10 mA load current, and features dedicated TRIM and NOISE REDUCTION pins for system-level calibration and filtering. It serves as a primary reference in high-resolution data converters.
For engineers reviewing the AD587KR-REEL datasheet, AD587KR-REEL pinout, AD587KR-REEL application, or AD587KR-REEL equivalent, key selection criteria include its SOIC_N (R-8) package compatibility, fine-trim capability for system calibration, low-drift performance across industrial temperature range, and proven use with 12-bit to 16-bit DACs and ADCs requiring stable 10 V excitation.
Technical Context
The AD587KR-REEL integrates a proprietary ion-implanted buried Zener diode, high-stability thin-film resistors, and a precision buffer amplifier in a single monolithic die. Its temperature compensation circuitry achieves ≤10 ppm/°C drift without external components, and its internal architecture separates noise-sensitive Zener biasing from output buffering to preserve low-noise integrity.
It operates from +13.5 V to +36 V input, draws ≤4 mA quiescent current, and provides output trim via an external 10 kΩ potentiometer. The NOISE REDUCTION pin (Pin 8) enables configurable low-pass filtering using an external capacitor-e.g., 1 μF reduces broadband noise to ~160 μV p-p while extending turn-on time to ~400 ms.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 10.000 V ±5 mV at 25°C - ensures direct compatibility with 10 V full-scale converter architectures without recalibration. |
| Tempco (0°C to 70°C) | ≤10 ppm/°C - guarantees ≤0.7 mV total drift over industrial temperature range, critical for metrology-grade systems. |
| Output Noise (0.1–10 Hz) | 4 μV p-p - enables sub-16-bit effective resolution in low-frequency precision measurement applications. |
| Quiescent Current | ≤4 mA - allows operation from standard 15 V supplies with minimal thermal loading and power budget impact. |
| Load Regulation | ±100 μV/mA (sourcing) - maintains stability under dynamic converter reference current demands up to 10 mA. |
| Line Regulation | ±100 μV/V (13.5–36 V) - rejects supply ripple without external regulation, simplifying front-end design. |
| Long-Term Stability | ±15 ppm/1000 hr - supports calibration intervals >1 year in test equipment and automated instrumentation. |
Pinout & Package
AD587KR-REEL is housed in an 8-lead SOIC_N (R-8) package per JEDEC MS-012-AA, with 1.27 mm lead pitch, 5.00 mm × 4.00 mm body, and 1.75 mm maximum height. Pin 1 is marked by a beveled corner; pins 1, 3, and 7 are internal test points and must remain unconnected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 2: +VIN | Positive Supply Input | Accepts 13.5 V to 36 V DC; powers internal Zener and amplifier; requires local 0.1 μF bypass to GND. |
| Pin 4: GND | Analog Ground Reference | Return path for all internal circuits; must connect to clean system AGND plane with low-impedance trace. |
| Pin 5: TRIM | Fine Output Adjustment Node | Connects to external 10 kΩ potentiometer wiper; enables ±300 mV offset for binary-scaled references (e.g., 10.24 V). |
| Pin 6: VOUT | Precision 10 V Output | Buffered, low-impedance source capable of sourcing/sinking ±10 mA; drives DAC reference inputs directly. |
| Pin 8: NOISE REDUCTION | Zener Noise Filtering Node | Connects external capacitor (e.g., 1 μF) to GND to form RC filter; reduces high-frequency noise but increases turn-on time. |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed initial accuracy & tempco | Eliminates need for external trimming resistors or compensation networks in production systems. |
| Dedicated noise-reduction pin | Enables user-configurable 10 Hz–100 kHz noise filtering without modifying core reference topology. |
| Industry-standard 8-lead SOIC pinout | Allows drop-in replacement of legacy 10 V references (e.g., REF02, LM399) without PCB redesign. |
| Output trim capability | Supports system-level calibration to exact voltage targets (e.g., 10.24 V for 12-bit binary scaling) with <0.01% gain error impact. |
| Buried Zener architecture | Delivers lower long-term drift and 1/f noise than bandgap alternatives, essential for calibration standards. |
Applications
| High-Resolution Data Acquisition | Automated Test Equipment (ATE) |
|---|---|
Use Scenario: 16-bit successive-approximation ADC digitizing sensor signals in environmental monitoring stations. IC Role / Device Role / Timing Role: Primary 10 V reference for ADC's VREF input, establishing absolute voltage scale for analog-to-digital conversion. Use Value: ±5 mV initial error and ≤10 ppm/°C drift ensure <0.01% full-scale accuracy across operating temperature, meeting IEC 61000-4-30 Class A requirements. |
Use Scenario: Modular PXI chassis calibrating multichannel DMMs and source-measure units. IC Role / Device Role / Timing Role: Stable reference for programmable voltage sources and precision DACs generating stimulus waveforms. Use Value: 4 μV p-p low-frequency noise prevents measurement floor elevation, enabling true 7½-digit resolution in DC voltage measurements. |
| Medical Imaging Signal Chain | Industrial Process Control Transmitters |
Use Scenario: CT scanner front-end digitizing photodiode array outputs with 14-bit linearity. IC Role / Device Role / Timing Role: Reference for dual-slope integrating ADCs converting analog X-ray intensity signals. Use Value: Long-term stability of ±15 ppm/1000 hr minimizes recalibration frequency, reducing downtime in clinical environments. |
Use Scenario: 4–20 mA HART-enabled pressure transmitter with onboard digital diagnostics. IC Role / Device Role / Timing Role: Excitation source for precision bridge sensors and reference for 12-bit SAR ADC measuring ratiometric outputs. Use Value: Load regulation of ±100 μV/mA ensures consistent ADC reference despite varying sensor excitation current and microcontroller activity. |
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 | Bandgap-based, 10.000 V ±3 mV, 3 ppm/°C, 1.8 μV p-p noise, SOIC-8 | Lower noise and drift, but higher sensitivity to supply ripple and load transients | Preferred for battery-powered portable instruments where ultra-low noise dominates over thermal stability. |
| REF5010AID | Series-mode, 10.000 V ±1 mV, 3 ppm/°C, 2.2 μV p-p noise, SOIC-8 | Requires ≥12 V input, higher quiescent current (10 mA), no noise-reduction pin | Chosen when highest initial accuracy and lowest drift are mandatory, and board space permits larger input decoupling. |
Compared with ADR441BRZ and REF5010AID, the AD587KR-REEL offers superior thermal hysteresis performance and built-in noise filtering flexibility at the cost of slightly higher drift and noise-making it optimal for industrial systems prioritizing long-term calibration stability over peak spec-sheet metrics.
Availability
AD587KR-REEL is available at Aetrix Electronics and suitable for high-resolution data acquisition, automated test equipment, medical imaging signal chains, and industrial process control transmitters requiring stable component supply and guaranteed long-term availability.
Supply support for AD587KR-REEL 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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with design centers worldwide.
The AD587 belongs to Analog Devices' precision voltage reference product line, engineered specifically for metrology-grade instrumentation, calibration standards, and high-bit-depth converter applications demanding low drift, low noise, and field-proven reliability.
FAQ
What is the operating temperature range specified for the AD587KR-REEL?
The AD587KR-REEL is specified for operation from 0°C to +70°C, with guaranteed performance including ±5 mV initial accuracy and ≤10 ppm/°C temperature coefficient across that range. Its operating range extends to −40°C to +85°C, though specifications may deviate outside the 0°C to +70°C specified range.
Can the AD587KR-REEL be used to generate a negative reference voltage?
Yes, the AD587KR-REEL can be configured as a −10.000 V reference by grounding the VOUT pin (Pin 6), connecting the GND pin (Pin 4) to a negative supply via a current-limiting resistor, and tying +VIN (Pin 2) to a positive supply ≥+3.5 V. This configuration maintains the same temperature stability and long-term drift as the standard 10 V mode.
Does the AD587KR-REEL require external capacitors for stability?
The AD587KR-REEL does not require external capacitors for basic stability, but a 0.1 μF ceramic capacitor between +VIN and GND is recommended for supply decoupling. For noise reduction, a capacitor (e.g., 1 μF) between the NOISE REDUCTION pin (Pin 8) and GND is optional and improves broadband noise at the expense of increased turn-on time (~400 ms).
What is the maximum load current the AD587KR-REEL can source or sink?
The AD587KR-REEL is rated to source or sink up to ±10 mA while maintaining specified load regulation of ±100 μV/mA. Short-circuit current to ground or +VIN is limited to 30–70 mA, providing inherent protection against moderate fault conditions without external current limiting.
How does the TRIM pin (Pin 5) function in the AD587KR-REEL?
The TRIM pin (Pin 5) connects to an external 10 kΩ potentiometer to adjust the output voltage by up to ±300 mV-enabling precise calibration to system-specific targets like 10.24 V for binary-scaled DACs. Adjustment has minimal effect on temperature coefficient or long-term stability, preserving core reference integrity.
AD587KR-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 10V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.05%
- Temperature Coefficient:
- 10ppm/°C
- Noise - 0.1Hz to 10Hz:
- 4µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 13.5V ~ 36V
- Current - Supply:
- 4mA
- Current - Cathode:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD587KR-REEL FAQ
1.How can I place an order for AD587KR-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD587KR-REEL 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 AD587KR-REEL reliable?
The price and inventory of AD587KR-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD587KR-REEL is usually 5 days.
3.What payment methods are accepted for AD587KR-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD587KR-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD587KR-REEL?
AD587KR-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD587KR-REEL 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 AD587KR-REEL?
For technical support, including AD587KR-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD587KR-REEL requirements.
6.How does Aetrix verify that AD587KR-REEL is sourced from the original manufacturer or authorized distributors?
All AD587KR-REEL 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 AD587KR-REEL meets industry standards.
7.What is the process for return or replacement of AD587KR-REEL?
All AD587KR-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD587KR-REEL, 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 AD587KR-REEL part is unused and in its original packaging.
Return procedure for AD587KR-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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