FEATURES
Low noise (0.1 Hz to 10.0 Hz): 3.5 µV p-p at 2.500 V output
No external capacitor required
Low temperature coefficient
A grade: 10 ppm/°C maximum
B grade: 3 ppm/°C maximum
Load regulation: 15 ppm/mA
Line regulation: 20 ppm/V
Wide operating range
ADR430: 4.1 V to 18 V
ADR431: 4.5 V to 18 V
ADR433: 5.0 V to 18 V
ADR434: 6.1 V to 18 V
ADR435: 7.0 V to 18 V
High output source and sink current: 30 mA and −20 mA
Wide temperature range: −40°C to +125°C
APPLICATIONS
Precision data acquisition systems
High resolution data converters
Medical instruments
Industrial process control systems
Optical control circuits
Precision instruments
GENERAL DESCRIPTION
The ADR430/ADR431/ADR433/ADR434/ADR4351 series is a family of XFET® voltage references featuring low noise, high accuracy, and low temperature drift performance. Using Analog Devices, Inc., temperature drift curvature correction and extra implanted junction FET (XFET) technology, voltage change vs. temperature nonlinearity in the ADR430/ADR431/ADR433/ ADR434/ADR435ARMZ is minimized.
The XFET references operate at lower current (800 µA) and lower supply voltage headroom (2 V) than buried Zener references. Buried Zener references require more than 5 V of headroom for operation. The ADR430/ADR431/ADR433/ ADR434/ADR435ARMZ XFET references are low noise solutions for 5 V systems.
The ADR430/ADR431/ADR433/ADR434/ADR435ARMZ family has the capability to source up to 30 mA of output current and sink up to −20 mA. It also comes with a trim terminal to adjust the output voltage over a ±0.5% range without compromising performance.
The ADR430/ADR431/ADR433/ADR434/ADR435ARMZ are available in 8-lead MSOP and 8-lead narrow SOIC packages. All versions are specified over the extended industrial temperature range of −40°C to +125°C.
Feature
- No external capacitor required
- 3.5µVp-p at 2.5V output Low noise (0.1 to 10Hz)
- 15ppm/mA Load regulation
- 20ppm/V Line regulation
- 7 to 18V Wide operating range
Applications
- Precision data acquisition systems
- High resolution data converters
- Medical instruments
- Industrial process control systems
- Optical control circuits
- Precision instruments
(Picture: Pinout)