Datasheet

Data Sheet ADR420/ADR421/ADR423/ADR425
Rev. J | Page 9 of 24
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
02432-002
NIC = NO INTERNAL CONNECTION
TP = TEST PIN (DO NOT CONNECT)
ADR420/
ADR421/
ADR423/
ADR425
TOP VIEW
(Not to Scale)
TP
1
V
IN
2
NIC 3
GND 4
TP 8
NIC 7
V
OUT
6
TRIM 5
Figure 2. 8-Lead SOIC, 8-Lead MSOP Pin Configuration
Table 8. Pin Function Descriptions
Pin No. Mnemonic Description
1, 8 TP
Test Pin. There are actual connections in TP pins, but they are reserved for factory testing purposes. Users should not
connect anything to TP pins; otherwise, the device may not function properly.
2 V
IN
Input Voltage.
3, 7 NIC No Internal Connect. NICs have no internal connections.
4 GND Ground Pin = 0 V.
5 TRIM
Trim Terminal. It can be used to adjust the output voltage over a ±0.5% range without affecting the temperature
coefficient.
6 V
OUT
Output Voltage.