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ADR292FR-RELL Datasheet(PDF) 1 Page - Analog Devices

Part # ADR292FR-RELL
Description  Low Noise Micropower Precision Voltage References
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADR292FR-RELL Datasheet(HTML) 1 Page - Analog Devices

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PIN CONFIGURATIONS
8-Lead Narrow Body SO (SO Suffix)
1
2
3
4
8
7
6
5
VOUT
VIN
GND
NC
NC
NC
NC
NC
ADR29x
TOP VIEW
(Not to Scale)
NC = NO CONNECT
8-Lead TSSOP (RU Suffix)
1
2
3
4
8
7
6
5
VOUT
VIN
GND
NC
NC
NC
NC
NC
ADR29x
TOP VIEW
(Not to Scale)
NC = NO CONNECT
REV. B
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
Low Noise Micropower
2.048 V, 2.5 V, and 4.096 V
Precision Voltage References
ADR290/ADR291/ADR292
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2001
FEATURES
Supply Range
2.35 V to 15 V, ADR290
2.8 V to 15 V, ADR291
4.4 V to 15 V, ADR292
Supply Current 12
A Max
Low-Noise 6
V, 8
V, 12
V p-p (0.1 Hz–10 Hz)
High Output Current 5 mA
Temperature Range
40 C to
125 C
Pin Compatible with REF02/REF19x
APPLICATIONS
Portable Instrumentation
Precision Reference for 3 V and 5 V Systems
A/D and D/A Converter Reference
Solar-Powered Applications
Loop-Current-Powered Instruments
GENERAL DESCRIPTION
The ADR290, ADR291 and ADR292 are low noise, micro-
power precision voltage references that use an XFET® reference
circuit. The new XFET architecture offers significant perfor-
mance improvements over traditional bandgap and Buried
Zener-based references. Improvements include: one quarter the
voltage noise output of bandgap references operating at the
same current, very low and ultralinear temperature drift, low
thermal hysteresis and excellent long-term stability.
The ADR29x family are series voltage references providing stable
and accurate output voltages from supplies as low as 2.35 V for the
ADR290. Output voltage options are 2.048 V, 2.5 V, and 4.096 V
for the ADR290, ADR291, and ADR292 respectively. Quiescent
XFET is a registered trademark of Analog Devices, Inc.
current is only 12
µA, making these devices ideal for battery-
powered instrumentation. Three electrical grades are available
offering initial output accuracies of
±2 mV, ±3 mV and ± 6 mV
max for the ADR290 and ADR291, and
± 3 mV, ±4 mV and
±6 mV max for the ADR292. Temperature coefficients for the
three grades are 8 ppm/
°C, 15 ppm/°C, and 25 ppm/°C max,
respectively. Line regulation and load regulation are typically
30 ppm/V and 30 ppm/mA, maintaining the reference’s overall
high performance. For a device with 5.0 V output, refer to the
ADR293 data sheet.
The ADR290, ADR291, and ADR292 references are specified
over the extended industrial temperature range of –40
°C to
+125
°C. Devices are available in the 8-lead SOIC and 8-lead
TSSOP packages.
ADR29x Product
Output Voltage
Initial Accuracy
Temperature Coefficient
Part Number
(V)
(%)
(ppm/ C) Max
ADR290
2.048
0.10, 0.15, 0.29
8, 15, 25
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
(See ADR293 Data Sheet)


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