Overview
The AD589JH, produced by Analog Devices Inc., is a two-terminal, low-cost, temperature-compensated bandgap voltage reference. It provides a fixed 1.23 V output voltage for input currents ranging from 50 µA to 5.0 mA. This device is known for its high stability, which is achieved through the matching and thermal tracking of on-chip components. The AD589JH leverages Analog Devices' precision bipolar processing and thin-film technology to offer excellent performance at a low cost.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage at 25°C | 1.200 | 1.235 | 1.250 | V |
| Output Voltage Change vs. Current (50 µA to 5 mA) | - | 5 | - | mV |
| Dynamic Output Impedance | - | 0.6 | 2 | Ω |
| RMS Noise Voltage (10 Hz < f < 10 kHz) | - | 5 | - | µV |
| Temperature Coefficient | - | 100 | - | ppm/°C |
| Turn-on Settling Time to 0.1% | - | 25 | - | µs |
| Operating Current | 0.05 | - | 5 | mA |
| Operating Temperature | 0 | - | 70 | °C |
| Package | - | - | - | Metal Can (H-02A), SOIC (R-8) |
Key Features
- Provides a constant reference voltage of 1.23 V for a wide range of input currents (50 µA to 5.0 mA).
- Low output impedance of 0.6 Ω, significantly lower than typical low-TC Zener diodes.
- Temperature coefficients as low as 10 ppm/°C ensure stable output voltage over a wide range of operating conditions.
- Can be operated as a positive or negative reference, and floating operation is also possible.
- Operates with a total current as low as 50 µA (60 µW total power dissipation), making it ideal for battery-powered instrument applications.
- No external components are required to maintain full accuracy under changing load conditions.
- Available in versions compliant with MIL-STD-883.
Applications
The AD589JH is suitable for various applications where a stable and accurate voltage reference is required. These include:
- Battery-powered instrument applications due to its low power consumption.
- Industrial control systems where precise voltage references are necessary.
- Communication systems and audio equipment that demand stable voltage references.
- Instrumentation and measurement devices that require high accuracy and stability.
Q & A
- What is the output voltage of the AD589JH?
The AD589JH provides a fixed output voltage of 1.23 V. - What is the range of input currents for the AD589JH?
The input current range is from 50 µA to 5.0 mA. - What is the dynamic output impedance of the AD589JH?
The dynamic output impedance is 0.6 Ω. - How does the AD589JH perform in terms of temperature stability?
The AD589JH has temperature coefficients as low as 10 ppm/°C, ensuring stable output voltage over a wide range of operating conditions. - Can the AD589JH be used in battery-powered applications?
Yes, it is ideal for battery-powered instrument applications due to its low power consumption (as low as 50 µA or 60 µW). - Does the AD589JH require external components for operation?
No, it does not require external components to maintain full accuracy under changing load conditions. - What are the available package options for the AD589JH?
The AD589JH is available in a metal can (H-02A) package and an 8-lead SOIC package. - Is the AD589JH compliant with any military standards?
Yes, it is available in versions compliant with MIL-STD-883. - What is the operating temperature range for the AD589JH?
The operating temperature range is from 0°C to +70°C. - How quickly does the AD589JH settle to 0.1% of its final value?
The turn-on settling time to 0.1% is 25 µs.
