AD589SH/883B - 1.2V Bandgap Voltage Reference | Analog Devices
MPN： AD589SH/883B ✓ 啟用中AD589SH/883B 概覽
A bandgap voltage reference is a type of voltage reference that produces a stable output voltage based on the bandgap energy of silicon, approximately 1.2V. It is a fundamental building block in analog and mixed-signal systems, providing a precise reference voltage for ADCs, DACs, comparators, and power supply monitoring circuits. Bandgap references are preferred over Zener-based references for their lower temperature drift and lower power consumption, making them ideal for battery-powered and precision measurement equipment.
Key features of the AD589SH/883B include its wide operating current range from 50µA to 5mA, allowing flexible biasing in various circuit topologies. The device operates with a total supply current of 50µA, consuming only 60µW of power, which is critical for low-power designs. The low temperature coefficient of 10ppm/°C ensures minimal output voltage variation across temperature, essential for high-accuracy applications. The two-terminal Zener operation simplifies circuit design, requiring only a single resistor to set the bias current.
Technically, the AD589 utilizes Analog Devices' precision bipolar processing and thin-film technology to achieve excellent matching and thermal tracking of on-chip components. This results in high stability and low noise, making it suitable for precision analog systems. The device is available in a hermetic metal can package, which provides excellent environmental protection and reliability, particularly for military and aerospace applications.
Typical applications include precision voltage references for data converters, portable instrumentation, and industrial process control. The AD589SH/883B is also used in power supply monitoring and calibration equipment where a stable, accurate reference is required. Its wide operating temperature range and MIL-STD-883B compliance make it suitable for harsh environments.
When designing with this device, ensure the bias current is set within the specified range (50µA to 5mA) using an appropriate resistor. The output voltage is nominally 1.23V, but can vary between 1.2V and 1.25V depending on grade. For optimal performance, use a stable bias current and consider the thermal effects on the reference voltage.
直接替換替代品，適用於 AD589SH/883B — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
AD589TH/883B
✅ 直接替換📋 參考替代品（不在目錄中）
AD589SH
✅ 直接替換📋 參考替代品（不在目錄中）
AD580SH/883B
✅ 直接替換📋 參考替代品（不在目錄中）
AD589SH/883B 最大額定值與電氣特性
| 輸出電壓 | 1.23 V (nominal) |
| 輸出電壓範圍 | 1.2 V to 1.25 V |
| Input Current Range | 50 µA to 5.0 mA |
| Temperature Coefficient | 10 ppm/°C (max, AD589M) |
| Output Impedance | 0.6 Ω |
| 工作溫度範圍 | -55°C to +125°C |
| Power Dissipation | 60 µW (at 50 µA) |
| 供應電流 | 50 µA (typical) |
| Package Type | Metal Can (TO-52 style) |
| 安裝類型 | Through Hole |
| Number of Terminals | 2 |
| Reference Type | Shunt (2-terminal) |
| MIL-STD-883B | Compliant |
| RoHS 狀態 | unknown |
| Lead Free | unknown |
AD589SH/883B 腳位配置
| 腳位 1 | Anode — Connect to ground (negative terminal) |
| 腳位 2 | Cathode — Output voltage (positive terminal) |
典型應用
AD589SH/883B 適用於 6 應用s: Precision Data Converters, Portable Instrumentation, Industrial Process Control, Aerospace and Defense, Medical Devices, Test and Measurement Equipment.
Precision Data Converters
The AD589SH/883B provides a stable 1.23V reference for ADCs and DACs, ensuring accurate conversion. Its low temperature coefficient (10ppm/°C) and low output impedance (0.6Ω) minimize errors over temperature and load variations. In a typical SAR ADC circuit, the reference is connected to the VREF pin with a decoupling capacitor. The wide operating current range (50µA to 5mA) allows flexible biasing to match the ADC's reference input requirements. This results in improved signal-to-noise ratio and linearity, critical for high-resolution measurement systems.
推薦
Portable Instrumentation
With a power consumption of only 60µW at 50µA, the AD589SH/883B is ideal for battery-powered instruments. Its small metal can package and two-terminal operation simplify PCB layout. The reference can be biased directly from a battery voltage through a resistor, providing a stable voltage for sensor signal conditioning. The wide temperature range (-55°C to +125°C) ensures reliable operation in field environments. This makes it suitable for handheld multimeters, data loggers, and portable calibration equipment.
推薦
Industrial Process Control
In industrial settings, the AD589SH/883B provides a stable reference for process control loops, PLCs, and transmitters. Its MIL-STD-883B compliance ensures high reliability in harsh environments. The low temperature coefficient minimizes drift in temperature-varying industrial environments. The two-terminal shunt operation allows easy integration into existing designs. With a wide operating current range, it can be used in both low-power and higher-current loops. This ensures accurate setpoints and measurements in critical control systems.
推薦
Aerospace and Defense
The AD589SH/883B is specifically screened to MIL-STD-883B, making it suitable for aerospace and defense applications. Its hermetic metal can package provides protection against moisture and contaminants. The wide operating temperature range (-55°C to +125°C) meets military specifications. The low power consumption is beneficial for satellite and avionics systems where power is limited. The stable 1.23V output is used in guidance systems, telemetry, and radar signal processing. This device ensures long-term reliability in mission-critical applications.
推薦
Medical Devices
In medical devices such as patient monitors and diagnostic equipment, the AD589SH/883B provides a stable reference for signal conditioning. Its low noise and low temperature drift ensure accurate readings. The small size and low power consumption are ideal for portable medical devices. The wide operating temperature range allows use in various clinical environments. The two-terminal operation simplifies design, reducing component count. This reference is used in ECG, EEG, and blood pressure monitors to maintain measurement accuracy.
推薦
Test and Measurement Equipment
The AD589SH/883B is used in bench multimeters, calibrators, and signal generators as a precision voltage reference. Its low temperature coefficient (10ppm/°C) ensures high accuracy over a wide temperature range. The low output impedance (0.6Ω) allows it to drive capacitive loads without significant voltage drops. The wide operating current range provides flexibility in circuit design. The MIL-STD-883B compliance guarantees reliability in demanding test environments. This reference is essential for maintaining calibration standards.
推薦
推薦產品摘要
工程參考資料，適用於 AD589SH/883B — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | AD589TH/883B | AD589SH | AD580SH/883B |
|---|---|---|---|---|
| Output Voltage | 1.23 V | 1.23 V | 1.23 V | 2.5 V |
| Temperature Coefficient | 10 ppm/°C | 10 ppm/°C | 10 ppm/°C | 10 ppm/°C |
| Operating Current Range | 50 µA to 5 mA | 50 µA to 5 mA | 50 µA to 5 mA | 1 mA to 5 mA |
| Output Impedance | 0.6 Ω | 0.6 Ω | 0.6 Ω | 0.6 Ω |
| Package | Metal Can (TO-52) | Metal Can (TO-52) | Metal Can (TO-52) | Metal Can (TO-52) |
| MIL-STD-883B | Yes | Yes | No | Yes |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Power Consumption | 60 µW | 60 µW | 60 µW | 2.5 mW |
主要差異化特點
- MIL-STD-883B compliance (對比AD589SH)
- Low power consumption (對比AD580SH/883B)
- Wide operating current range (對比LM385Z-1.2)
設計說明
The AD589SH/883B is a shunt reference, so it requires an external resistor to set the bias current. Choose the resistor value to ensure the current is within 50µA to 5mA across all operating conditions. For example, with a 5V supply and a desired 1mA bias, use a resistor of (5V - 1.23V) / 1mA = 3.77kΩ. Ensure the resistor can handle the power dissipation.
The AD589SH/883B has a power dissipation of only 60µW at 50µA, so thermal management is not a concern. However, in high-temperature environments, the temperature coefficient of 10ppm/°C can cause voltage drift. For best accuracy, keep the device away from heat sources and consider using a precision resistor for biasing.
For optimal performance, place a 0.1µF ceramic capacitor close to the reference output to filter high-frequency noise. The two-terminal package requires careful PCB layout to minimize parasitic inductance. Use a ground plane and keep traces short. The metal can package should be soldered with appropriate thermal relief to avoid heat damage.
合規資訊
MIL-STD-883B compliant. RoHS status not specified in available data.
