AD584TH - Pin Programmable Precision Voltage Reference | Analog Devices
MPN: AD584TH ✓ فعالAD584TH نمای کلی
A voltage reference is an electronic component that produces a constant output voltage regardless of load, temperature, or supply variations. It serves as a benchmark for analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and other measurement systems. Voltage references are a subset of power management ICs, specifically within the analog signal chain, ensuring accuracy and stability in precision circuits.
Key features of the AD584TH include a programmable output voltage (2.5V, 5V, 7.5V, or 10V) with an initial accuracy of ±0.14% (for the TH grade), a 10 mA output current capability, and a wide operating temperature range. The device also offers low temperature coefficient and excellent line and load regulation, making it suitable for demanding industrial and instrumentation applications.
Technically, the AD584 uses a bandgap reference architecture combined with an output amplifier to provide a low-impedance, buffered output. The pin-programmable feature allows the user to select the desired output voltage without external resistors, simplifying design and reducing component count. The TO-99-8 package provides a hermetic seal, enhancing reliability in harsh environments.
Typical applications include precision data acquisition systems, digital voltmeters, calibration equipment, and as a reference for 8- to 12-bit ADCs and DACs. The AD584TH is also used in power supply monitoring and battery management systems where a stable reference is required.
When designing with the AD584TH, ensure adequate decoupling on the input and output pins to maintain stability. The output can drive up to 10 mA, but for higher current loads, an external buffer may be necessary. The device is available in tape and reel packaging for automated assembly.
جایگزین‌های drop-in برای AD584TH — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
AD584KH
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
AD584SH
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده📋 جایگزین مرجع (خارج از کاتالوگ)
LT1021
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده📋 جایگزین مرجع (خارج از کاتالوگ)
REF02
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده📋 جایگزین مرجع (خارج از کاتالوگ)
AD584TH حداکثر مقادیر مجاز و مشخصات الکتریکی
| ولتاژ خروجی | 2.5V, 5V, 7.5V, 10V (pin programmable) |
| Initial Accuracy | ±0.14% (TH grade) |
| Output Current | 10 mA |
| Supply Voltage Range | 4.5V to 30V |
| محدوده دمای کاری | -55°C to +125°C |
| بسته‌بندی | TO-99-8 |
| نوع نصب | Through Hole |
| تعداد پین‌ها | 8 |
| وضعیت RoHS | Compliant |
| وضعیت چرخه عمر | Active |
پیکربندی پین AD584TH
| پین 1 | VIN — Input supply voltage |
| پین 2 | GND — Ground |
| پین 3 | VOUT — Output voltage |
| پین 4 | NC — No connection |
| پین 5 | NC — No connection |
| پین 6 | NC — No connection |
| پین 7 | NC — No connection |
| پین 8 | NC — No connection |
کاربردهای معمول
AD584TH مناسب است برای 6 کاربردs: Precision Data Acquisition Systems, Digital Voltmeters and Calibration Equipment, Industrial Process Control, Battery Management Systems, Test and Measurement Instrumentation, Aerospace and Defense.
Precision Data Acquisition Systems
The AD584TH provides a stable, accurate voltage reference for ADCs and DACs in data acquisition systems. Its pin-programmable outputs (2.5V, 5V, 7.5V, 10V) allow flexibility in setting full-scale ranges. With ±0.14% initial accuracy and 10 mA output, it ensures reliable conversion results. The wide temperature range (-55°C to +125°C) suits industrial environments. Recommended companion products include the AD7124-4 ADC and AD7172-2 ADC for high-resolution measurement.
پیشنهادی
Digital Voltmeters and Calibration Equipment
In digital voltmeters and calibration instruments, the AD584TH serves as a reference for accurate voltage measurement. Its low temperature coefficient and excellent long-term stability ensure consistent readings. The TO-99-8 package provides hermetic sealing, protecting against environmental factors. The 10 mA output can drive external circuitry. Recommended companion products include precision op-amps like the AD8628 and AD797 for signal conditioning.
پیشنهادی
Industrial Process Control
The AD584TH is ideal for industrial process control systems requiring a stable reference for analog-to-digital conversion. Its wide operating temperature range and hermetic package make it suitable for harsh environments. The pin-programmable outputs allow easy configuration for different sensor ranges. The 10 mA output can drive multiple loads. Recommended companion products include the AD7606 ADC for simultaneous sampling and the ADuCM360 microcontroller for control.
پیشنهادی
Battery Management Systems
In battery management systems, the AD584TH provides a precise reference for voltage monitoring and cell balancing. Its low power consumption and stable output ensure accurate state-of-charge estimation. The pin-programmable outputs allow adaptation to different battery chemistries. The TO-99-8 package is robust for automotive and industrial applications. Recommended companion products include the ADBMS1818 battery monitor and the LTC6811 for multi-cell monitoring.
پیشنهادی
Test and Measurement Instrumentation
The AD584TH is used in test and measurement equipment such as multimeters, oscilloscopes, and signal generators. Its high accuracy and stability ensure reliable calibration. The pin-programmable outputs provide flexibility in setting reference levels. The wide temperature range supports benchtop and field use. Recommended companion products include the AD7175 ADC for high-resolution measurements and the AD5541 DAC for precision output generation.
پیشنهادی
Aerospace and Defense
The AD584TH meets the stringent requirements of aerospace and defense applications, including avionics and guidance systems. Its military temperature range and hermetic TO-99-8 package ensure reliability in extreme conditions. The pin-programmable outputs allow flexible system design. The 10 mA output can drive critical circuits. Recommended companion products include the AD7606 ADC and the ADuC845 microcontroller for ruggedized data acquisition.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای AD584TH — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | AD584KH | AD584KN | AD584SH |
|---|---|---|---|---|
| Package | TO-99-8 | TO-99-8 | DIP-8 | TO-99-8 |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Output Voltage | 2.5V, 5V, 7.5V, 10V | 2.5V, 5V, 7.5V, 10V | 2.5V, 5V, 7.5V, 10V | 2.5V, 5V, 7.5V, 10V |
| Initial Accuracy | ±0.14% | ±0.1% | ±0.1% | ±0.1% |
| Output Current | 10 mA | 10 mA | 10 mA | 10 mA |
| Temperature Range | -55°C to +125°C | -55°C to +125°C | 0°C to +70°C | -55°C to +125°C |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole |
| RoHS | Compliant | Compliant | Compliant | Compliant |
تفاوت‌های کلیدی
- Pin-programmable outputs (در مقابلREF02)
- Wide temperature range (در مقابلAD584KN)
- Hermetic TO-99-8 package (در مقابلAD584KN)
یادداشت‌های طراحی
The AD584TH requires a supply voltage between 4.5V and 30V. Ensure the input is adequately decoupled with a 0.1uF ceramic capacitor close to the VIN pin to prevent instability. The output can source up to 10 mA; for higher currents, use an external buffer to avoid degrading accuracy.
For optimal performance, place the AD584TH away from heat sources and use a ground plane to minimize thermal gradients. The TO-99-8 package has a metal can that can be connected to ground for shielding. Keep traces short and use Kelvin connections for the output to reduce voltage drops.
Do not exceed the maximum input voltage of 30V, as this can damage the device. When programming the output voltage, ensure the programming pins are correctly connected to avoid unintended output levels. Also, avoid capacitive loads greater than 10uF on the output, as this may cause oscillation.
اطلاعات انطباق
RoHS compliant per distributor data. AEC-Q100 not applicable for this through-hole device.
