Datasheet ADR4520, ADR4525, ADR4530, ADR4533, ADR4540, ADR4550 (Analog Devices)

Ultralow Noise, High Accuracy Voltage References Data Sheet ADR4520/ ADR4525/ ADR4530/ ADR4533/ ADR4540/ ADR4550 FEATURES PIN CONFIGURATION Maximum temperature coefficient (TCV ADR4520/ADR4525/ OUT): 2 ppm/°C ADR4530/ADR4533/ Output noise (0.1 Hz to 10 Hz) ADR4540/ADR4550 Less than 1 μV p-p at VOUT of 2.048 V typical NIC 1 8 DNC Initial output voltage error: ±0.02% (maximum) VIN 2 7 NIC Input voltage range: 3 V to 15 V NIC 3 6 V TOP VIEW OUT Operating temperature: −40°C to +125°C GND (Not to Scale) 4 5 NIC Output current: +10 mA source/−10 mA sink Low quiescent current: 950 μA (maximum) NOTES 1. NIC = NOT INTERNALLY CONNECTED.
001
Low dropout voltage: 300 mV at 2 mA (VOUT ≥ 3 V) THIS PIN IS NOT CONNECTED INTERNALLY. 2. DNC = DO NOT CONNECT. DO NOT CONNECT TO THIS PIN. 8-lead SOIC package
10203- Figure 1. 8-Lead SOIC
Qualified for automotive applications APPLICATIONS Precision data acquisition systems High resolution data converters High precision measurement devices Industrial instrumentation Medical devices Automotive battery monitoring GENERAL DESCRIPTION
The ADR4520 /ADR4525/ADR4530/ADR4533/ADR4540/
Table 1. Selection Guide
ADR4550 devices are high precision, low power, low noise
Model Output Voltage (V)
voltage references featuring ±0.02% maximum initial error, ADR4520 2.048 excellent temperature stability, and low output noise. ADR4525 2.5 This family of voltage references uses an innovative core ADR4530 3.0 topology to achieve high accuracy while offering industry-leading ADR4533 3.3 temperature stability and noise performance. The low, thermal y ADR4540 4.096 induced output voltage hysteresis and low long-term output ADR4550 5.0 voltage drift of the devices also improve system accuracy over time and temperature variations.
Table 2. Voltage Reference Choices from Analog Devices
A maximum operating current of 950 μA and a maximum low
Low Cost/ Ultralow High Voltage,
dropout voltage of 300 mV al ow the devices to function very
VOUT (V) Low Power Micropower Noise High Performance
wel in portable equipment. 2.048 ADR360 REF191 ADR430 The ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ ADR3420 ADR440 ADR4550 series of references is provided in an 8-lead SOIC 2.5 ADR3425 ADR291 ADR431 ADR03 package and is available in a wide range of output voltages, all of AD1582 REF192 ADR441 AD780 ADR361 which are specified over the extended industrial temperature 5.0 ADR3450 ADR293 ADR435 ADR02 range of −40°C to +125°C. The ADR4525W, available in an AD1585 REF195 ADR445 AD586 8-lead SOIC package, is qualified for automotive applications. ADR365
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Document Outline Features Applications Pin Configuration General Description Revision History Specifications ADR4520 Electrical Characteristics ADR4525 Electrical Characteristics ADR4530 Electrical Characteristics ADR4533 Electrical Characteristics ADR4540 Electrical Characteristics ADR4550 Electrical Characteristics Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics ADR4520 ADR4525 ADR4530 ADR4533 ADR4540 ADR4550 Terminology Theory of Operation Long-Term Drift Power Dissipation Applications Information Basic Voltage Reference Connection Input and Output Capacitors Input Capacitors Output Capacitors Location of Reference in System Sample Applications Bipolar Output Reference Boosted Output Current Reference Outline Dimensions Ordering Guide Automotive Products