Overview
The AD587KR, produced by Analog Devices Inc., represents a significant advancement in the field of monolithic voltage references. This device utilizes a proprietary ion-implanted buried Zener diode and laser wafer trimming of high stability thin-film resistors, resulting in outstanding performance at a low cost. The AD587KR offers superior accuracy and stability compared to most other 10 V references, making it an ideal choice for precision applications.
The device features an industry-standard pinout, allowing for instant upgrades in many systems. It is particularly suited for use as a reference in 8-bit, 10-bit, 12-bit, 14-bit, or 16-bit DACs and successive approximation or integrating ADCs with up to 14 bits of accuracy. The AD587KR provides better performance than standard on-chip references and is known for its low noise and drift characteristics.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 10.000 V ± 5 mV | V |
| Temperature Coefficient | 10 ppm/°C (AD587K), 20 ppm/°C (AD587J) | ppm/°C |
| Operating Temperature Range | 0°C to +70°C (AD587J, AD587K), -55°C to +125°C (AD587U) | °C |
| Output Noise | Typically 4 µV p-p | µV p-p |
| Load Regulation | ±200 µV/mA (SOIC package) | µV/mA |
| Quiescent Current | mA | |
| Package Options | 8-lead SOIC, 8-lead PDIP, 8-lead CERDIP |
Key Features
- Laser Trimming: Initial accuracy and temperature coefficients are laser trimmed, ensuring very low errors over temperature without the need for external components.
- Optional Fine Trim Connection: A fine trim connection is available for applications requiring higher precision.
- Industry-Standard Pinout: Allows for instant upgrades in systems using standard 10 V references.
- Low Output Noise: The device features very low output noise, typically 4 µV p-p, with a noise reduction pin for additional filtering using an external capacitor.
- Temperature Performance: Extensive temperature testing ensures high performance over the specified operating temperature range.
- Military Compliance: Some models are compliant with MIL-STD-883 standards.
Applications
- Precision DACs and ADCs: Ideal for use as a reference in 8-bit, 10-bit, 12-bit, 14-bit, or 16-bit DACs and successive approximation or integrating ADCs with up to 14 bits of accuracy.
- High-Precision Measurement Systems: Suitable for applications requiring stable and accurate voltage references.
- Aerospace and Military: Models compliant with MIL-STD-883 standards are available for military and aerospace applications.
- Industrial and Scientific Instruments: Used in various industrial and scientific instruments where high precision and stability are crucial.
Q & A
- What is the output voltage of the AD587KR?
The output voltage of the AD587KR is 10.000 V ± 5 mV.
- What is the temperature coefficient of the AD587KR?
The temperature coefficient of the AD587KR is 10 ppm/°C for the AD587K model and 20 ppm/°C for the AD587J model.
- What are the operating temperature ranges for the AD587KR?
The operating temperature ranges are 0°C to +70°C for the AD587J and AD587K models, and -55°C to +125°C for the AD587U model.
- How much noise does the AD587KR typically produce?
The AD587KR typically produces 4 µV p-p of output noise.
- What is the load regulation of the AD587KR?
The load regulation of the AD587KR is ±200 µV/mA for the SOIC package.
- What is the quiescent current of the AD587KR?
The quiescent current of the AD587KR is less than 4 mA.
- In what packages is the AD587KR available?
The AD587KR is available in 8-lead SOIC, 8-lead PDIP, and 8-lead CERDIP packages.
- Can the AD587KR be used for military applications?
Yes, some models of the AD587KR are compliant with MIL-STD-883 standards, making them suitable for military applications.
- How can the noise level of the AD587KR be further reduced?
The noise level can be further reduced by using the noise reduction pin with an external capacitor to form a low-pass filter.
- What types of applications benefit from the AD587KR's precision?
The AD587KR is ideal for precision DACs, ADCs, high-precision measurement systems, and various industrial and scientific instruments.
