Catalog
High Precision Shunt Mode Voltage Reference (3.0 V)
Key Features
• Ultracompact SC70 and SOT-23-3 packages
• Temperature coefficient:40 ppm/°C (maximum)
• 2× the temperature coefficientimprovement over the LM4040
• Pin compatible with LM4040/LM4050
• Initial accuracy: ±0.2%
• Low output voltage noise:14 μVP-P@ 2.5 V output
• No external capacitor required
• Operating current range:50 μA to 15 mA
• Industrial temperature range:−40°C to +85°C
Description
AI
Designed for space-critical applications, the ADR525/ADR530/ ADR550 are high precision shunt voltage references, housed in ultrasmall SC70 and SOT-23-3 packages. These references feature low temperature drift of 40 ppm/°C, an initial accuracy of better than ±0.2%, and ultralow output noise of 18 μVP-P.Available in output voltages of 2.5 V, 3.0 V, and 5.0 V, the advanced design of the ADR525/ADR530/ADR550 eliminates the need for compensation by an external capacitor, yet the references are stable with any capacitive load. The minimum operating current increases from a mere 50 μA to a maximum of 15 mA. This low operating current and ease of use make these references ideally suited for handheld, battery-powered applications.A trim terminal is available on the ADR525/ADR530/ADR550 to allow adjustment of the output voltage over a ±0.5% range, without affecting the temperature coefficient of the device. This feature provides users with the flexibility to trim out small system errors.For better initial accuracy and wider temperature range, see theADR5040/ADR5041/ADR5043/ADR5044/ADR5045family atwww.analog.com.APPLICATIONSPortable, battery-powered equipmentAutomotivePower suppliesData acquisition systemsInstrumentation and process controlEnergy measurement
