AD584TH - Pin Programmable Precision Voltage Reference | Analog Devices
料号： AD584TH ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $75.9983 | $76.00 |
| 10 | $68.3985 | $683.99 |
| 100 | $60.7987 | $6,079.87 |
| 500 | $53.1989 | $26,599.45 |
| 1,000 | $45.5991 | $45,599.10 |
AD584TH 概述
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.
直接替换替代料： AD584TH ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
AD584KH
✅ 直接替换📋 参考替代料（不在目录中）
AD584SH
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
LT1021
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
REF02
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
AD584TH 最大额定值与电气特性
| 输出电压 | 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 |
| 工作温度范围 | -55°C to +125°C |
| 封装 | TO-99-8 |
| 安装类型 | Through Hole |
| 引脚数 | 8 |
| RoHS 状态 | Compliant |
| 生命周期状态 | Active |
AD584TH 引脚配置
| 引脚 1 | VIN — Input supply voltage |
| 引脚 2 | GND — Ground |
| 引脚 3 | VOUT — Output voltage |
| 引脚 4 | NC — No connection |
| 引脚 5 | NC — No connection |
| 引脚 6 | NC — No connection |
| 引脚 7 | NC — No connection |
| 引脚 8 | NC — No connection |
典型应用
AD584TH 适用于 6 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： AD584TH ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- Pin-programmable outputs （对比 REF02)
- Wide temperature range （对比 AD584KN)
- Hermetic TO-99-8 package （对比 AD584KN)
设计说明
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.
合规信息
RoHS compliant per distributor data. AEC-Q100 not applicable for this through-hole device.
