ADR4540 Ultra-Low-Noise, High-Accuracy 4.096V Voltage Reference

The ADR45xx series of devices are high precision, low power, low noise voltage references, featuring ± 0.02% maximum initial error, excellent temperature stability and low output noise.

This family of voltage references employs a new core topology for high accuracy, while offering industry-leading temperature stability and noise performance. The devices’ low thermally induced output voltage hysteresis and low long-term output voltage drift also improve system accuracy over time and temperature variations.

A maximum operating current of 950 μA and a low dropout voltage (300 mV max) allow the device to be used in portable equipment.

ADR45xx series references are available in a wide range of output voltages, in an SOIC package, all of which are specified over the extended industrial temperature range of -40°C to +125 °C.

APPLICATIONS

Precision data acquisition systems
High-resolution data converters
High-precision measurement devices
Industrial instrumentation
Medical devices
Automotive battery monitoring

Features and Benefits

Maximum temperature coefficient (TC):
2 ppm / °C
Output noise (0.1 – 10 Hz):
< 2.0 μVp-p @ 4.096 VOUT typ
Initial output voltage error:
± 0.02% maximum
Input voltage range:
3 to 15 V
Operating temperature:
-40°C – +125 °C

Output current:
+10 mA source / -10 mA sink
Low quiescent current:
950 μA (max)
Low dropout voltage:
300 mV@2mA
SOIC-8 package

Linear Products

Voltage References

Data Sheets

Document	note
ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550: Ultralow Noise, High Accuracy Voltage References Data Sheet (Rev. 0)	PDF 993 kB

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
ADR4540ARZ Production	8 ld SOIC	OTH 98	-40 to 125C	2.65	2.45	Y
ADR4540ARZ-R7 Production	8 ld SOIC	REEL 1000	-40 to 125C	0	2.45	Y
ADR4540BRZ Production	8 ld SOIC	OTH 98	-40 to 125C	3.95	3.45	Y
ADR4540BRZ-R7 Production	8 ld SOIC	REEL 1000	-40 to 125C	0	3.45	Y