ADR420/ADR421/ADR423/ADR425
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
TP
1
V
IN 2
NIC
3
ADR420/
ADR421/
ADR423/
ADR425
8
7
6
TP
NIC
V
OUT
TOP VIEW
GND
4
(Not to Scale)
5
TRIM
NIC = NO INTERNAL CONNECTION
TP = TEST PIN (DO NOT CONNECT)
02432-002
Figure 2. 8-Lead SOIC, 8-Lead MSOP Pin Configuration
Table 8. Pin Function Descriptions
Pin No.
1, 8
2
3, 7
4
5
6
Mnemonic
TP
V
IN
NIC
GND
TRIM
V
OUT
Description
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.
Input Voltage.
No Internal Connect. NICs have no internal connections.
Ground Pin = 0 V.
Trim Terminal. It can be used to adjust the output voltage over a ±0.5% range without affecting the temperature
coefficient.
Output Voltage.
Rev. I | Page 8 of 24
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