Overview
The AD580KH is a high-precision, 2.5 V IC voltage reference produced by Analog Devices Inc. This three-terminal, temperature-compensated, bandgap voltage reference is designed to provide a stable 2.5 V output voltage for input voltages ranging from 4.5 V to 30 V. The AD580KH is known for its low cost, advanced circuit design, and the use of laser-wafer trimmed thin-film resistors, which ensure high accuracy and stability.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Output Voltage Tolerance | ±25 | ±10 | ±10 | mV |
| Output Voltage Change (TMIN to TMAX) | 7 | 4.3 | 1.75 | mV |
| Line Regulation (7 V ≤ VIN ≤ 30 V) | 1.5 | 4 | 2 | mV |
| Line Regulation (4.5 V ≤ VIN ≤ 7 V) | 0.3 | 2 | 1 | mV |
| Load Regulation (∆I = 10 mA) | 10 | 10 | 10 | mV |
| Quiescent Current | 1.0 | 1.5 | 1.5 | mA |
| Noise (0.1 Hz to 10 Hz) | 8 | 8 | 8 | µV p-p |
| Long-term Stability | 250 | 250 | 250 | µV |
| Temperature Performance (Specified) | 0 | +70 | +70 | °C |
| Temperature Performance (Operating) | –55 | +125 | +125 | °C |
| Package/Case Type | TO-52 (H-03A) Metal Can Through Hole | |||
Key Features
- High Precision: The AD580KH offers an initial tolerance of ±0.4% and a temperature stability of better than 10 ppm/°C, ensuring high accuracy and stability.
- Low Quiescent Current: With a maximum quiescent current drain of 1.5 mA, it provides an advantage over classical Zener techniques.
- Wide Input Range: Operates with input voltages between 4.5 V and 30 V, making it suitable for systems with a single logic power supply.
- Temperature Compensation: Laser-wafer trimmed thin-film resistors ensure long-term stability better than 250 µV and temperature stability of better than 10 ppm/°C.
- Compact Packaging: Available in a TO-52 (H-03A) metal can through-hole package.
Applications
- D/A Converters: Recommended as a stable reference for 8-, 10-, and 12-bit D/A converters that require an external reference.
- Digital Panel Meters: Ideal for digital panel meter applications due to its compatibility with 5 V logic supplies.
- Single Logic Power Supply Systems: Suitable for systems that operate with a single logic power supply.
Q & A
- What is the output voltage of the AD580KH?
The AD580KH provides a fixed 2.5 V output voltage.
- What is the input voltage range for the AD580KH?
The AD580KH operates with input voltages between 4.5 V and 30 V).
- What is the temperature stability of the AD580KH?
The AD580KH has a temperature stability of better than 10 ppm/°C).
- What is the quiescent current of the AD580KH?
The maximum quiescent current drain of the AD580KH is 1.5 mA).
- What package type is the AD580KH available in?
The AD580KH is available in a TO-52 (H-03A) metal can through-hole package).
- What are the specified temperature ranges for the AD580KH?
The AD580KH is specified for operation over the temperature range of 0°C to +70°C, with extended versions operating from –55°C to +125°C).
- What is the long-term stability of the AD580KH?
The AD580KH has a long-term stability better than 250 µV).
- Is the AD580KH suitable for digital panel meter applications?
Yes, the AD580KH is ideal for digital panel meter applications due to its compatibility with 5 V logic supplies).
- What is the noise level of the AD580KH?
The noise level of the AD580KH is 8 µV p-p from 0.1 Hz to 10 Hz).
- What are some common applications of the AD580KH?
The AD580KH is commonly used in D/A converters, digital panel meters, and systems with a single logic power supply).
