Model No: ADR441BRZ-REEL7

Analog Devices Inc. ADR441BRZ-REEL7

Manufacturer: Analog Devices Inc.
SEMICON NO.: ADR441BRZ-REEL7
Package: 8-SOIC
Stock: In stock
Description: Series Voltage Reference Fixed 2.5V 10 mA
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 Mfr       Analog Devices Inc. 
 Device Type    Voltage Reference
 Product Series     ADR441 Series    
 Technology      XFET
 Reference Type     Series – Programmable  
 Output Type     Fixed    
 Nominal Output Voltage  2.5 V    
 Output Current (Source)         +10 mA
 Output Current (Sink)   –5 mA    
 Initial Accuracy (Tolerance)     ±0.04% (max) / 1 mV    
 Reference Voltage Range      2.499 V to 2.501 V  
 Quiescent Current     3.75 mA (typ)    
 Supply Voltage     3 V to 18 V
 Operating Temperature -40°C to +125°C
 Package 8-SOIC
 Mounting Type Surface Mount
 Compliance    
 RoHS Compliant
 
The ADR441BRZ-REEL7 is an ultra-low-noise high-precision 2.5V XFET voltage reference IC from Analog Devices, housed in a standard 8-pin SOIC SMD package. It features ±0.04% initial accuracy, 3ppm/°C maximum temperature drift, and 1.7µV p-p 0.1Hz to 10Hz low noise performance, supporting both current source and sink operation with 10mA output drive capability, making it a premium high-stability reference solution for high-precision data acquisition, industrial measurement, and high-end test and measurement systems.
Key Features and Highlights
● Ultra-High Initial Accuracy:‌ ±0.04% maximum initial output voltage error, eliminating the need for manual factory calibration in most high-precision measurement applications.
● Extremely Low Temperature Drift:‌ 3ppm/°C maximum temperature coefficient across the full -40°C to +125°C industrial temperature range, ensuring exceptional long-term output stability under wide ambient temperature variations.
● Industry-Leading Ultra-Low Noise:‌ Only 1.7µV p-p low frequency noise from 0.1Hz to 10Hz, drastically reducing reference noise contribution to ADC/DAC conversion results and improving system measurement resolution.
● Bidirectional Current Source/Sink Capability:‌ Natively supports both sourcing and sinking up to 10mA output current, offering flexible system design options for different analog circuit topologies.
● Wide 3V to 18V Supply Range:‌ Operates stably across 3V to 18V input supply voltage, natively working with 5V, 12V, and 15V analog system power rails without extra dedicated LDO regulation circuits.
Frequently Asked Questions (FAQ):‌
Q: Can this voltage reference directly drive the reference input of a 16-bit ADC?‌
A: Yes, its ultra-low noise and high stability performance fully meets the reference accuracy requirements of 16-bit high-resolution ADCs without additional signal conditioning circuits.
Compatible Alternative voltage reference List
● ADR441ARZ-REEL7:‌ The higher-precision variant of the ADR441, offering 2ppm/°C maximum temperature drift for ultra-high-stability precision measurement system applications.
● REF5025AID:‌ A Texas Instruments high-precision 2.5V voltage reference, serving as a fully pin-compatible cross-vendor second-source alternative with equivalent 3ppm/°C drift performance.
● ADR431BRZ:‌ The low-noise 2.5V XFET reference variant, featuring even lower 1.0µV p-p noise performance for ultra-high-resolution 18-bit ADC measurement scenarios.
● LM4040AIM3-2.5:‌ A low-cost 2.5V shunt voltage reference, offering a cost-optimized solution for high-volume consumer precision analog product designs.