Datasheet ADR525, ADR530, ADR550 (Analog Devices)

High Precision Shunt Mode Voltage References ADR525/ADR530/ADR550 FEATURES PIN CONFIGURATION Ultracompact SC70 and SOT-23-3 packages V+ 1 ADR525/ Temperature coefficient: 40 ppm/°C (maximum) ADR530/ ADR550 2× the temperature coefficient improvement over the 3 TRIM LM4040
01 0
V– 2 Pin compatible with the LM4040/LM4050
01- 045
Initial accuracy: ±0.2%
Figure 1. 3-Lead SC70 (KS) and 3-Lead SOT-23-3 (RT)
Low output voltage noise: 18 μV p-p @ 2.5 V output No external capacitor required Operating current range: 50 μA to 15 mA GENERAL DESCRIPTION Industrial temperature range: −40°C to +85°C
Designed for space-critical applications, the ADR525/ADR530/ ADR550 are high precision shunt voltage references, housed in
APPLICATIONS
ultrasmall SC70 and SOT-23-3 packages. These references feature
Portable, battery-powered equipment
low temperature drift of 40 ppm/°C, an initial accuracy of better
Automotive
than ±0.2%, and ultralow output noise of 18 μV p-p.
Power supplies
Available in output voltages of 2.5 V, 3.0 V, and 5.0 V, the
Data acquisition systems
advanced design of the ADR525/ADR530/ADR550 eliminates
Instrumentation and process control
the need for compensation by an external capacitor, yet the
Energy measurement
references are stable with any capacitive load. The minimum
Table 1. Selection Guide
operating current increases from a mere 50 μA to a maximum
Temperature
of 15 mA. This low operating current and ease of use make
Initial Coefficient
these references ideally suited for handheld, battery-powered
Part Voltage (V) Accuracy (%) (ppm/°C)
applications. ADR525A 2.5 ±0.4 70 A trim terminal is available on the ADR525/ADR530/ADR550 ADR525B 2.5 ±0.2 40 to allow adjustment of the output voltage over a ±0.5% range, ADR530A 3.0 ±0.4 70 without affecting the temperature coefficient of the device. This ADR530B 3.0 ±0.2 40 feature provides users with the flexibility to trim out small ADR550A 5.0 ±0.4 70 system errors. ADR550B 5.0 ±0.2 40 For better initial accuracy and wider temperature range, see the ADR5040/ADR5041/ADR5043/ADR5044/ADR5045 family at www.analog.com.
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Document Outline FEATURES APPLICATIONS PIN CONFIGURATION GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ADR525 ELECTRICAL CHARACTERISTICS ADR530 ELECTRICAL CHARACTERISTICS ADR550 ELECTRICAL CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PARAMETER DEFINITIONS TEMPERATURE COEFFICIENT THERMAL HYSTERESIS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION APPLICATIONS Precision Negative Voltage Reference Output Voltage Trim Stacking the ADR525/ADR530/ADR550 for User-Definable Outputs Adjustable Precision Voltage Source OUTLINE DIMENSIONS ORDERING GUIDE