Product Summary

The ADR440AR is a family of XFET voltage references featuring ultralow noise, high accuracy, and low temperature drift performance. Using Analog Devices, Inc., patented temperature drift curvature correction and XFET (eXtra implanted junction FET) technology, voltage change vs. temperature nonlinearity in the ADR440AR is greatly minimized. The XFET references offer better noise performance than buried Zener references, and XFET references operate off low supply voltage headroom (0.5 V). This combination of features makes the ADR440AR ideally suited for precision signal conversion applications in high-end data acquisition systems, optical networks, and medical applications.The ADR440AR has the capability to source up to 10 mA of output current and sink up to 5 mA. It also comes with a trim terminal to adjust the output voltage over a 0.5% range without compromising performance. Offered in two electrical grades, the ADR440AR is avail-able in 8-lead MSOP and narrow SOIC packages. All versions are specified over the extended industrial temperature range of −40°C to +125°C.

Parametrics

Absolute maximum ratings:(1)Supply Voltage: 20V; (2)Output Short-Circuit Duration to GND: Indefinite; (3)Storage Temperature Range: 65°C to +125°C; (4)Operating Temperature Range: ?40°C to +125°C; (5)Junction Temperature Range: 65°C to +150°C; (6)Lead Temperature, Soldering (60 sec): 300°C.

Features

Features: (1)Ultralow noise (0.1 Hz to 10 Hz); (2)ADR440: 1 μV p-p; (3)ADR441: 1.2 μV p-p; (4)ADR443: 1.4 μV p-p; (5)ADR444: 1.8 μV p-p; (6)ADR445: 2.25 μV p-p; (7)Superb temperature coefficient; (8)A Grade: 10 ppm/°C; (9)B Grade: 3 ppm/°C; (10)Low dropout operation: 500 mV; (11)Input range: (VOUT + 500 mV) to 18 V; (12)High output source and sink current: +10 mA and 5 mA; (13)Wide temperature range: 40°C to +125°C.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
ADR440ARMZ
ADR440ARMZ

IC VREF SERIES PREC 2.048V 8MSOP
Data Sheet
0-1: $3.74
1-10: $3.37
10-25: $3.07
25-100: $2.77
100-250: $2.54
250-500: $2.32
500-1000: $2.02
1000-2500: $1.99
ADR440ARMZ-REEL7
ADR440ARMZ-REEL7

IC VREF SERIES PREC 2.048V 8MSOP
Data Sheet
0-1000: $2.02
ADR440ARZ
ADR440ARZ

IC VREF SERIES PREC 2.048V 8SOIC
Data Sheet
0-1: $3.55
1-10: $3.20
10-100: $2.63
100-250: $2.41
250-500: $2.20
500-1000: $1.92
1000-2500: $1.89
ADR440ARZ-REEL7
ADR440ARZ-REEL7

IC VREF SERIES PREC 2.048V 8SOIC
Data Sheet
0-1000: $1.92