ADR420/ADR421/ADR423/ADR425
ABSOLUTE MAXIMUM RATINGS
*
PIN FUNCTION DESCRIPTIONS
Pin Mnemonic Description
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 V
Output Short-Circuit Duration to GND . . . . . . . . . Indefinite
Storage Temperature Range
R, RM Packages . . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Operating Temperature Range
ADR42x . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to +125°C
Junction Temperature Range
R, RM Packages . . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Lead Temperature Range (Soldering, 60 sec) . . . . . . . 300°C
*Absolute maximum ratings apply at 25°C, unless otherwise noted.
1, 8 TP
Test Pin. There are actual connections in TP
pins but they are reserved for factory testing
purposes. Users should not connect any-
thing to TP pins, otherwise the device may
not function properly.
2
VIN
Input Voltage
3, 7 NIC
No Internal Connect. NICs have no internal
connections.
4
5
GND
TRIM
Ground Pin = 0 V
PIN CONFIGURATIONS
Trim Terminal. It can be used to adjust the
output voltage over a 0.5% range without
affecting the temperature coefficient.
SOIC-8
Mini_SOIC-8
6
VOUT
Output Voltage
8
7
6
5
1
2
3
4
8
1
2
3
4
TP
NIC
V
TP
NIC
V
TP
TP
ADR42x
ADR42x
7
6
5
V
V
IN
IN
NIC
NIC
Package Type
θJA*
Unit
OUT
OUT
TRIM
TRIM
GND
GND
8-Lead Mini_SOIC (RM)
8-Lead SOIC (R)
190
130
°C/W
°C/W
NIC = NO INTERNAL CONNECTION
TP = TEST PIN (DO NOT CONNECT)
NIC = NO INTERNAL CONNECTION
TP =TEST PIN (DO NOT CONNECT)
*θJA is specified for the worst-case conditions, i.e., θJA is specified for device soldered
in circuit board for surface-mount packages.
ORDERING GUIDE
Output
Voltage
VO
Initial
Accuracy
Number of Temp
Temp
Package
Package Top
Parts per
Range
°C
Model
mV% ppm/°C Coefficient Description Option
Mark Reel
ADR420AR
ADR420AR-Reel7
ADR420BR
ADR420BR-Reel7
2.048
2.048
2.048
2.048
3
3
1
1
3
0.15%
0.15%
0.05%
0.05%
0.15%
10
10
3
3
10
SOIC
SOIC
SOIC
SOIC
SO-8
SO-8
SO-8
SO-8
RM-8
98
3,000
98
3,000
1,000
–40 to +125
–40 to +125
–40 to +125
–40 to +125
–40 to +125
ADR420ARM-Reel7 2.048
Mini_SOIC
R4A
R5A
TBD
TBD
ADR421AR
ADR421AR-Reel7
ADT421BR
ADT421BR-Reel7
2.50
2.50
2.50
2.50
3
3
1
1
3
0.12%
0.12%
0.04%
0.04%
0.12%
10
10
3
3
10
SOIC
SOIC
SOIC
SOIC
SO-8
SO-8
SO-8
SO-8
RM-8
98
3,000
98
3,000
1,000
–40 to +125
–40 to +125
–40 to +125
–40 to +125
–40 to +125
ADR421ARM-Reel7 2.50
Mini_SOIC
ADR423AR
ADR423AR-Reel7
ADT423BR
ADT423BR-Reel7
3.00
3.00
3.00
3.00
4
4
1.5
1.5
4
0.13%
0.13%
0.04%
0.04%
0.13%
10
10
3
3
10
SOIC
SOIC
SOIC
SOIC
SO-8
SO-8
SO-8
SO-8
RM-8
98
3,000
98
3,000
1,000
–40 to +125
–40 to +125
–40 to +125
–40 to +125
–40 to +125
ADR423ARM-Reel7 3.00
Mini_SOIC
ADR425AR
ADR425AR-Reel7
ADT425BR
ADT425BR-Reel7
5.00
5.00
5.00
5.00
6
6
2
2
6
0.12%
0.12%
0.04%
0.04%
0.12%
10
10
3
3
10
SOIC
SOIC
SOIC
SOIC
SO-8
SO-8
SO-8
SO-8
RM-8
98
3,000
98
3,000
1,000
–40 to +125
–40 to +125
–40 to +125
–40 to +125
–40 to +125
ADR425ARM-Reel7 5.00
Mini_SOIC
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the AD42x features proprietary ESD protection circuitry, permanent damage may occur on devices
subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are
recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
–4–
REV. A