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Overview
Features and Benefits
- Low noise (0.1 Hz to 10 Hz)
-
ADR420: 1.75 μVp-p
ADR421: 1.75 μVp-p
ADR423: 2.0 μVp-p
ADR425: 3.4 μVp-p - Low temperature coefficient: 3 ppm/°C
- Long-term stability: 50 ppm/1000 hours
- Load regulation: 70 ppm/mA
- Line regulation: 35 ppm/V
- Low hysteresis: 40 ppm typical
- Wide operating range
ADR420: 4 V to 18 V
ADR421: 4.5 V to 18 V
ADR423: 5 V to 18 V
ADR425: 7 V to 18 V - Quiescent current: 0.5 mA maximum
- High output current: 10 mA
- Wide temperature range: −40°C to +125°C
Product Details
The ADR42x are a series of ultraprecision, second generation eXtra implanted junction FET (XFET) voltage references featuring low noise, high accuracy, and excellent long-term stability in SOIC and MSOP footprints.
Patented temperature drift curvature correction technique and XFET technology minimize nonlinearity of the voltage change with temperature. The XFET architecture offers superior accuracy and thermal hysteresis to the band gap references. It also operates at lower power and lower supply headroom than the buried Zener references.
The superb noise and the stable and accurate characteristics of the ADR42x make them ideal for precision conversion applications such as optical networks and medical equipment. The ADR42x trim terminal can also be used to adjust the out-put voltage over a ±0.5% range without compromising any other performance. The ADR42x series voltage references offer two electrical grades and are specified over the extended industrial temperature range of −40°C to +125°C. Devices have 8-lead SOIC or 30% smaller, 8-lead MSOP packages.
APPLICATIONS
- Precision data acquisition systems
- High resolution converters
- Battery-powered instrumentation
- Portable medical instruments
- Industrial process control systems
- Precision instruments
- Optical network control circuits
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation
Application Notes (1)
Product Highlight (1)
Frequently Asked Questions (1)
Reference Materials
ADA4530-1 Electrometer Op Amp: Measuring Femptoamp Currents
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
PCN-PDN Information
Sample & Buy
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