Overview
The AD587JRZ from Analog Devices Inc. is a high-precision 10 V voltage reference IC, renowned for its outstanding performance and low cost. This device utilizes a proprietary ion-implanted buried Zener diode and laser wafer trimming of high-stability thin-film resistors, ensuring very low errors over temperature without the need for external components. The AD587JRZ is designed to offer superior performance compared to most other 10 V references, making it an ideal choice for upgrading systems using industry-standard pinout 10 V references.
Key Specifications
| Parameter | Description |
|---|---|
| Output Voltage | 10.000 V ± 0.1% (typical) |
| Output Current | Up to 10 mA |
| Input Voltage | Up to 36 V |
| Temperature Range | 0°C to 70°C (AD587J and AD587K), -55°C to +125°C (AD587U) |
| Package Type | 8-lead SOIC (Surface Mount) |
| Noise Reduction | Optional noise-reduction pin for further noise reduction |
| Trimming | Optional fine trim connection for higher precision |
Key Features
- Laser Trimming: Initial accuracy and temperature coefficients are laser trimmed, resulting in very low errors over temperature.
- Low Noise: The buried Zener approach provides lower noise and drift compared to band gap voltage references. An optional noise-reduction pin further reduces noise levels.
- Industry-Standard Pinout: Allows for instant upgrades of systems using standard 10 V references.
- High Precision: Suitable for 8-bit to 16-bit DACs and ADCs requiring external precision references.
- Temperature Stability: The AD587U model guarantees ±14 mV maximum total error between -55°C and +125°C.
Applications
- DACs and ADCs: Recommended for use as a reference for 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.
- Precision Current Sources: Can be configured as a precision current source by selecting the appropriate control resistor.
- High Current Supplies: Can be connected to power PNP or power Darlington PNP devices for higher current applications.
Q & A
- What is the output voltage of the AD587JRZ?
The output voltage of the AD587JRZ is 10.000 V ± 0.1% (typical).
- What is the maximum output current of the AD587JRZ?
The maximum output current is up to 10 mA.
- What is the input voltage range for the AD587JRZ?
The input voltage range is up to 36 V.
- What are the temperature ranges for different models of the AD587?
The AD587J and AD587K models operate from 0°C to 70°C, while the AD587U model operates from -55°C to +125°C.
- What package types are available for the AD587JRZ?
The AD587JRZ is available in an 8-lead SOIC package for surface-mount applications.
- How does the AD587JRZ reduce noise?
The AD587JRZ has an optional noise-reduction pin that can be used to further reduce the noise level generated by the buried Zener diode.
- Can the AD587JRZ be used for precision current sources?
Yes, the AD587JRZ can be configured as a precision current source by selecting the appropriate control resistor.
- What types of DACs and ADCs is the AD587JRZ suitable for?
The AD587JRZ is suitable for 8-bit to 16-bit DACs and successive approximation or integrating ADCs with up to 14 bits of accuracy.
- How does the laser trimming feature benefit the AD587JRZ?
The laser trimming of initial accuracy and temperature coefficients results in very low errors over temperature without the need for external components.
- Can the AD587JRZ be used in high current applications?
Yes, the AD587JRZ can be connected to power PNP or power Darlington PNP devices for higher current applications.
