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Voltage references from Analog Devices combine ultra-low noise, high accuracy and value for precision applications
Analog Devices has introduced a series of voltage references offering the industry’s best combination of noise performance, initial output voltage accuracy, low temperature coefficient (TC), and excellent long-term stability at unmatched price points. The new ADR45xx series of voltage references are specifically suited for high-resolution data converters and precision applications in data acquisition systems, instrumentation, process control, and automotive battery monitoring.
With low frequency noise of 0.5 ppm, maximum temperature coefficient of 2 ppm/°C over the full operating temperature range of -40°C to +125°C, and a typical long-term drift of only 25 ppm/1khr, the ADR45xx series of voltage references provide high accuracy over time and temperature variations critical for many precision applications. This performance is achieved with a maximum quiescent current of 950 µA making the devices ideal for portable and budget sensitive designs. Also available is an A-grade version with a TC of 5 ppm/°C
ADR45xx Voltage References Key Features:
● Maximum TC: 2 ppm/°C
● Output noise (0.1 – 10 Hz): < 1µVP-P @ 2.048 VOUT typical
● Initial output voltage error: ±0.02 percent (max)
● Input voltage range: 3 V to 15 V
● Operating temperature: -40°C to +125°C
● Output current: +10 mA source/-10 mA sink
● Low quiescent current: 950 µA (max)
● Low dropout voltage: 300 mV @ 2 mA (VOUT ≥ 3 V)
Availability:
| Product | Output Voltage (V) | Sample and Full Production Availability | Packaging |
|---|---|---|---|
| ADR4520 | 2.048 | Now | SOIC-8 |
| ADR4525 | 2.500 | Now | SOIC-8 |
| ADR4530 | 3.000 | Now | SOIC-8 |
| ADR4533 | 3.300 | Now | SOIC-8 |
| ADR4540 | 4.096 | Now | SOIC-8 |
| ADR4550 | 5.000 | Now | SOIC-8 |
The ADR45xx series of voltage references is well suited to operate with many of ADI’s low power, precision A/D converters such as the AD7685, AD7982 and AD7988-1/-5, as well as D/A converters, including the AD5780 and AD5764.
● View the ADR4520, ADR4525, ADR4530, ADR4533, ADR4540 and ADR4550 product pages, and download the data sheet: http://www.analog.com/ADR4520
● Select the best voltage reference for your application using ADI’s free Voltage Reference Selection and Evaluation Wizard
For more information, or details on the full range of Analog Devices products available from Anglia, please email info@anglia.com
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This news article was originally published in July 2012.
