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ADR293GRZ Datasheet(PDF) 1 Page - Analog Devices

Part # ADR293GRZ
Description  Low Noise, Micropower 5.0 V Precision Voltage Reference
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADR293GRZ Datasheet(HTML) 1 Page - Analog Devices

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Low Noise, Micropower
5.0 V Precision Voltage Reference
ADR293
Rev. D
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2001-2011 Analog Devices, Inc. All rights reserved.
FEATURES
6.0 V to 15 V supply range
Supply current: 15 μA maximum
Low noise: 15 μV p-p typical (0.1 Hz to 10 Hz)
High output current: 5 mA
Temperature range: −40°C to +125°C
Pin-compatible with the REF02/REF19x
APPLICATIONS
Portable instrumentation
Precision reference for 5 V systems
ADC and DAC reference
Solar-powered applications
Loop-current powered instruments
PIN CONFIGURATIONS
NC 1
VIN 2
NC 3
GND 4
NC
8
NC
7
VOUT
6
NC
5
NC = NO CONNECT
ADR293
TOP VIEW
(Not to Scale)
Figure 1. 8-Lead Narrow Body SOIC (R-8)
TOP VIEW
(Not to Scale)
1
2
3
4
ADR293
VIN
NC
GND
NC
8
7
6
5
NC
VOUT
NC
NC
NC = NO CONNECT
Figure 2. 8-Lead TSSOP (RU-8)
GENERAL DESCRIPTION
The ADR293 is a low noise, micropower precision voltage
reference that utilizes an XFET® (eXtra implanted junction FET)
reference circuit. The XFET architecture offers significant
performance improvements over traditional band gap and
buried Zener-based references. Improvements include one
quarter the voltage noise output of band gap references
operating at the same current, very low and ultralinear
temperature drift, low thermal hysteresis, and excellent long-
term stability.
The ADR293 is a series voltage reference providing stable and
accurate output voltage from a 6.0 V supply. Quiescent current
is only 15 μA maximum, making this device ideal for battery
powered instrumentation. Three electrical grades are available
offering initial output accuracy of ±3 mV, ±6 mV, and ±10 mV.
Temperature coefficients for the three grades are 8 ppm/°C,
15 ppm/°C, and 25 ppm/°C maximum. Line regulation and load
regulation are typically 30 ppm/V and 30 ppm/mA, respectively,
maintaining the reference’s overall high performance.
The ADR293 is specified over the extended industrial
temperature range of –40°C to +125°C. This device is available
in the 8-lead SOIC and 8-lead TSSOP packages.
Table 1. ADR29x Products
Device
Output
Voltage (V)
Initial
Accuracy (%)
Temperature
Coefficient
(ppm/°C max)
ADR291
2.500
0.08, 0.12, 0.24
8, 15, 25
ADR292
4.096
0.07, 0.10, 0.15
8, 15, 25
ADR293
5.000
0.06, 0.12, 0.20
8, 15, 25


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