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Analog Devices Inc. AD580LH
- Part No.:
- AD580LH
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- TO-206AC, TO-52-3 Metal Can
- Datasheet:
-
AD580LH.pdf
- Description:
- IC VREF SERIES 0.4% TO52-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,026
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Product details
Overview
AD580LH from Analog Devices is a 3-terminal, laser-trimmed bandgap voltage reference delivering a precise 2.500 V ±10 mV output over –55°C to +125°C, with 25 ppm/°C temperature coefficient, 10 mV load regulation (ΔI = 10 mA), and 1.5 mA max quiescent current - used as a stable external reference for 12-bit DACs such as AD7542 in single 5 V supply systems.
For engineers reviewing the AD580LH datasheet, AD580LH pinout, AD580LH application, or AD580LH equivalent, key selection criteria include output tolerance at extended temperature, low-noise 0.1 Hz–10 Hz performance (8 µV p-p), TO-52 hermetic package reliability, and compatibility with precision data acquisition systems requiring minimal external components.
Technical Context
The AD580LH implements a bandgap reference architecture using two transistors biased at different current densities to generate a ΔVBE with positive TC, summed with VBE to yield a near-zero TC composite voltage extrapolated to 1.205 V at 0 K, then amplified to 2.5 V. Its three-terminal configuration requires no external resistors or capacitors for basic operation.
It operates across 4.5 V to 30 V input while maintaining regulation, supports load currents up to 10 mA, and exhibits quasi-parabolic output vs. temperature behavior - enabling guaranteed maximum deviation (±10 mV) over full –55°C to +125°C range rather than discrete-point characterization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.500 V ±10 mV (guaranteed initial accuracy at 25°C) |
| Tempco | 25 ppm/°C (max output drift over –55°C to +125°C) |
| Input Range | 4.5 V to 30 V (enables direct use with 5 V logic rails) |
| Quiescent Current | ≤1.5 mA (supports low-power CMOS data converter systems) |
| Long-Term Stability | 250 µV (total drift over lifetime; 25 µV/month typical) |
| 0.1 Hz–10 Hz Noise | 8 µV p-p (critical for high-resolution ADC/DAC reference integrity) |
| Load Regulation | 10 mV (ΔVOUT for 10 mA load change; defines output impedance) |
Pinout & Package
AD580LH is housed in a hermetic TO-52 metal can package (H-03A), rated for military-grade reliability and MIL-STD-883 compliance. The package features a 3-pin bottom-view layout with axial leads, designed for through-hole mounting and high-temperature stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +E | Positive Input Supply | Accepts 4.5 V–30 V; powers internal bandgap core and output buffer |
| –E | Ground Reference | Return path for supply current and load current; must be low-impedance |
| EOUT | Precision Output | Regulated 2.500 V source; connects directly to DAC REF pin or ADC reference input |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed thin-film resistors | Enables ±10 mV initial output tolerance without user calibration |
| Three-terminal operation | Eliminates need for external biasing components - reduces BOM count and layout area |
| Wide input voltage range | Supports direct operation from 5 V logic supplies, avoiding dedicated ±15 V rails |
| Hermetic TO-52 package | Ensures long-term parameter stability and moisture resistance in harsh environments |
| Low 0.1 Hz–10 Hz noise | Preserves effective resolution in 16+ bit data acquisition systems |
Applications
| Digital Panel Meters | 12-Bit Microprocessor DAC Systems |
|---|---|
Use Scenario: Portable handheld DPMs powered by single 5 V supply with limited board space and thermal budget. IC Role / Device Role / Timing Role: Primary voltage reference for ADC front-end, setting full-scale range with minimal drift. Use Value: Enables accurate 4½-digit measurement without trimming or dual-supply design; ±10 mV tolerance ensures <0.4% FS error at 25°C. |
Use Scenario: Industrial control modules using AD7542 12-bit DAC interfaced to 8-bit microcontrollers. IC Role / Device Role / Timing Role: Stable 2.5 V reference for DAC VREF input, defining analog output span (0–2.5 V). Use Value: Guarantees monotonicity and ±1/2 LSB linearity per AD7542 spec; 25 ppm/°C tempco maintains accuracy across operating environment. |
| Avionics Sensor Signal Conditioning | Test & Measurement Calibration Sources |
Use Scenario: Ruggedized flight-critical sensors requiring MIL-qualified references with wide temperature operation. IC Role / Device Role / Timing Role: Precision reference for sigma-delta ADCs digitizing pressure/temperature transducer outputs. Use Value: TO-52 hermetic package and –55°C to +125°C rating ensure reliability under thermal cycling and vibration; 250 µV long-term drift minimizes recalibration frequency. |
Use Scenario: Benchtop calibrators generating traceable DC voltage standards for field instrument verification. IC Role / Device Role / Timing Role: Low-noise, low-drift reference element in programmable voltage source feedback loop. Use Value: 8 µV p-p 0.1 Hz–10 Hz noise and 25 ppm/°C tempco support sub-100 ppm accuracy; ±10 mV initial tolerance simplifies factory calibration setup. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF02CP | 2.5 V ±15 mV initial tolerance; 25 ppm/°C tempco; DIP-8 package | Requires external decoupling capacitor; higher quiescent current (2.5 mA) | Preferred when through-hole DIP layout is fixed and TO-52 mounting is impractical |
| ADR3425ARJZ | 2.5 V ±3 mV initial tolerance; 10 ppm/°C tempco; SOT-23-5 package | Lower noise (4.8 µV p-p), but not hermetic; limited to –40°C to +125°C | Selected for higher accuracy and smaller footprint where MIL-qualification is not required |
Compared with REF02CP and ADR3425ARJZ, the AD580LH offers superior long-term stability (250 µV vs. 500 µV) and hermetic reliability for mission-critical systems, while trading off initial accuracy and package size - making it optimal for avionics, industrial calibration, and legacy designs prioritizing proven ruggedness over miniaturization.
Availability
AD580LH is available at Aetrix Electronics and suitable for digital panel meters, 12-bit DAC systems, avionics signal conditioning, and test & measurement calibration sources requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for AD580LH 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 defense markets since 1965.
The AD580 family was engineered as a cost-effective, hermetically sealed bandgap reference for precision data acquisition systems demanding robustness, low power, and minimal external components - especially where 5 V-only operation and extended temperature range are mandatory.
FAQ
What is the guaranteed initial output voltage tolerance of the AD580LH?
The AD580LH is laser-trimmed to guarantee an output voltage of 2.500 V ±10 mV at 25°C, corresponding to ±0.4% accuracy. This specification is tested on all production units and applies across the full –55°C to +125°C operating range as a maximum deviation bound, not just at discrete temperatures.
Does the AD580LH require external components to function as a voltage reference?
No, the AD580LH operates as a true 3-terminal device: connect +E to supply (4.5 V–30 V), –E to ground, and EOUT delivers regulated 2.500 V. No external resistors, capacitors, or trimming components are needed - its internal bandgap core and buffer eliminate dependency on external circuitry for basic reference operation.
Can the AD580LH be used with a 5 V supply in low-power systems?
Yes, the AD580LH functions reliably with a 5 V input (within its 4.5 V–30 V range) and draws ≤1.5 mA quiescent current, making it ideal for CMOS-based data converters like the AD7542 DAC. Its low power consumption and single-supply operation eliminate the need for ±15 V rails in microprocessor-compatible analog subsystems.
What is the temperature coefficient and operating range of the AD580LH?
The AD580LH has a guaranteed temperature coefficient of 25 ppm/°C over its full specified operating range of –55°C to +125°C. This means maximum output variation is bounded within ±10 mV across that entire range - enabled by its quasi-parabolic VOUT vs. T characteristic, unlike nonlinear Zener-based references.
Is the AD580LH suitable for use in MIL-STD-883 qualified applications?
Yes, the AD580LH is offered in a TO-52 metal can package compliant with MIL-STD-883, meeting requirements for hermetic sealing, temperature cycling, and long-term reliability in defense and aerospace applications. Its construction and testing align with Class B screening per MIL-STD-883 Method 5005.
AD580LH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- TO-206AC, TO-52-3 Metal Can
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.4%
- Temperature Coefficient:
- 25ppm/°C
- Noise - 0.1Hz to 10Hz:
- 8µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 4.5V ~ 30V
- Current - Supply:
- 1.5mA
- Current - Cathode:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-52-3
AD580LH FAQ
1.How can I place an order for AD580LH through Aetrix?
Please submit a Request for Quotation (RFQ) for AD580LH 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 AD580LH reliable?
The price and inventory of AD580LH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD580LH is usually 5 days.
3.What payment methods are accepted for AD580LH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD580LH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD580LH?
AD580LH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD580LH 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 AD580LH?
For technical support, including AD580LH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD580LH requirements.
6.How does Aetrix verify that AD580LH is sourced from the original manufacturer or authorized distributors?
All AD580LH 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 AD580LH meets industry standards.
7.What is the process for return or replacement of AD580LH?
All AD580LH units undergo pre-shipment inspection (PSI). If there is an issue with AD580LH, 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 AD580LH part is unused and in its original packaging.
Return procedure for AD580LH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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