Overview
The AD589TH/883B is a two-terminal, low-cost, temperature-compensated bandgap voltage reference produced by Analog Devices Inc. This device provides a fixed 1.23 V output voltage for input currents ranging from 50 µA to 5.0 mA. It is designed to offer high stability and accuracy, making it suitable for a variety of applications requiring precise voltage references.
The AD589TH/883B benefits from Analog Devices' precision bipolar processing and thin-film technology, ensuring excellent performance at a low cost. It is available in versions compliant with MIL-STD-883, making it a reliable choice for military and high-reliability applications.
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 | 25 | 50 | 100 | ppm/°C |
| Turn-On Settling Time to 0.1% | 25 | µs | ||
| Operating Current | 0.05 | 5 | mA | |
| Operating Temperature Range | –55 | +125 | °C |
Key Features
- Provides a fixed 1.23 V output voltage for input currents between 50 µA and 5.0 mA.
- Low output impedance of 0.6 Ω, ten times lower than typical low-TC Zener diodes.
- No external components required to maintain full accuracy under changing load conditions.
- 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.
- Low power operation with a total current as low as 50 µA (60 µW total power dissipation), ideal for battery-powered instrument applications.
- Available in versions compliant with MIL-STD-883.
Applications
- Battery-operated portable equipment due to its low power operation.
- Reference for CMOS analog-to-digital converters (ADCs) and CMOS multiplying digital-to-analog converters (DACs).
- Digital panel meter applications and other low-power systems requiring a stable voltage reference.
- Military and high-reliability applications due to its MIL-STD-883 compliance.
Q & A
- What is the output voltage of the AD589TH/883B?
The AD589TH/883B provides a fixed 1.23 V output voltage.
- What is the input current range for the AD589TH/883B?
The input current range is between 50 µA and 5.0 mA.
- What is the dynamic output impedance of the AD589TH/883B?
The dynamic output impedance is 0.6 Ω.
- What is the temperature coefficient of the AD589TH/883B?
The temperature coefficient is as low as 10 ppm/°C.
- Can the AD589TH/883B be used in battery-powered applications?
- Is the AD589TH/883B compliant with MIL-STD-883?
- What types of packages are available for the AD589TH/883B?
- Can the AD589TH/883B be used as a negative reference?
- What is the turn-on settling time of the AD589TH/883B?
- What is the operating temperature range of the AD589TH/883B?
