ADR421AR-REEL7 Analog Devices Inc, ADR421AR-REEL7 Datasheet - Page 2
![IC VREF PREC 2.5V 10MA 8-SOIC](/photos/5/66/56684/505-8-soic_sml.jpg)
ADR421AR-REEL7
Manufacturer Part Number
ADR421AR-REEL7
Description
IC VREF PREC 2.5V 10MA 8-SOIC
Manufacturer
Analog Devices Inc
Series
XFET®r
Datasheet
1.ADR425ARZ.pdf
(24 pages)
Specifications of ADR421AR-REEL7
Rohs Status
RoHS non-compliant
Design Resources
40 Channels of Programmable Voltage with Excellent Temperature Drift Performance Using AD5380 (CN0007) 40 Channels of Programmable Voltage with Excellent Temperature Drift Performance Using AD5381 (CN0010) 32 Channels of Programmable Voltage with Excellent Temperature Drift Performance Using AD5382 (CN0011) 32 Channels of Programmable Voltage with Excellent Temperature Drift Performance Using AD5383 (CN0014) 8 to 16 Channels of Programmable Voltage with Excellent Temperature Drift Performance Using AD5390/1/2 (CN0029) High Precision Digital-to-Analog Conversion Using the 16-Bit AD5542/1, ADR421, and AD8628 (CN0079) 16 Channels of Programmable Output Span Using AD5360 (CN0131) Layout Considerations for an Expandable Multichannel Simultaneous Sampling Data Acquisition System Based on AD7606 (CN0148) 40 Channels of Programmable Output Span Using AD5371 (CN0149) Software Calibrated, 1 MHz to 8 GHz, 70 dB RF Power Measurement System Using AD8318 (CN0150) How to Achieve High Precision Voltage Level Setting Using AD5541A/42A (CN0169)
Reference Type
Series
Voltage - Output
2.5V
Tolerance
±0.12%
Temperature Coefficient
10ppm/°C
Voltage - Input
4.5 ~ 18 V
Number Of Channels
1
Current - Quiescent
500µA
Current - Output
10mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Current - Cathode
-
ADR420/ADR421/ADR423/ADR425
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Pin Configuration............................................................................. 1
General Description ......................................................................... 1
ADR42x Products............................................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 7
Pin Configurations and Function Descriptions ........................... 8
Typical Performance Characteristics ............................................. 9
Terminology .................................................................................... 15
Theory of Operation ...................................................................... 16
REVISION HISTORY
6/07—Rev. G to Rev. H
Changes to Table 2............................................................................ 3
Changes to Table 3............................................................................ 4
Changes to Table 4............................................................................ 5
Changes to Table 5............................................................................ 6
Updated Outline Dimensions ....................................................... 21
Changes to Ordering Guide .......................................................... 22
6/05—Rev. F to Rev. G
Changes to Table 1............................................................................ 1
Changes to Ordering Guide .......................................................... 22
2/05—Rev. E to Rev. F
Updated Format..................................................................Universal
Updated Outline Dimensions ....................................................... 21
Changes to Ordering Guide .......................................................... 22
7/04—Rev. D to Rev. E
Changes to Ordering Guide ............................................................ 5
3/04—Rev. C to Rev. D
Changes to Table I ............................................................................ 1
Changes to Ordering Guide ............................................................ 4
Updated Outline Dimensions ....................................................... 16
ADR420 Electrical Specifications............................................... 3
ADR421 Electrical Specifications............................................... 4
ADR423 Electrical Specifications............................................... 5
ADR425 Electrical Specifications............................................... 6
Thermal Resistance ...................................................................... 7
ESD Caution.................................................................................. 7
Device Power Dissipation Considerations.............................. 16
Rev. H | Page 2 of 24
Applications..................................................................................... 17
Outline Dimensions ....................................................................... 21
1/03—Rev. B to Rev. C
Changed Mini_SOIC to MSOP ........................................Universal
Changes to Ordering Guide .............................................................4
Corrections to Y-axis labels in TPCs 21 and 24 ............................9
Enhancement to Figure 13 ............................................................ 15
Updated Outline Dimensions....................................................... 16
3/02—Rev. A to Rev. B
Edits to Ordering Guide ...................................................................4
Deletion of Precision Voltage Regulator section........................ 15
Addition of Precision Boosted Output Regulator section ....... 15
Addition of Figure 13..................................................................... 15
10/01—Rev. 0 to Rev. A
Addition of ADR423 and ADR425 to
ADR420/ADR421...............................................................Universal
5/01—Revision 0: Initial Version
Basic Voltage Reference Connections ..................................... 16
Noise Performance..................................................................... 16
Turn-On Time ............................................................................ 16
Output Adjustment .................................................................... 17
Reference for Converters in Optical Network Control
Circuits......................................................................................... 17
A Negative Precision Reference Without Precision Resistors
....................................................................................................... 17
High Voltage Floating Current Source .................................... 18
Kelvin Connections.................................................................... 18
Dual-Polarity References........................................................... 18
Programmable Current Source ................................................ 19
Programmable DAC Reference Voltage .................................. 19
Precision Voltage Reference for Data Converters.................. 20
Precision Boosted Output Regulator ....................................... 20
Ordering Guide .......................................................................... 22