Datasheet

AD8021
Rev. F | Page 8 of 28
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
8
7
6
5
1
2
3
4
LOGIC
REFERENCE
–IN
+IN
–V
S
DISABLE
+V
S
V
OUT
C
COMP
AD8021
01888-003
Figure 4. Pin Configuration
Table 5. Pin Function Descriptions
Pin No. Mnemonic Description
1 LOGIC REFERENCE Reference for Pin 8
1
Voltage Level. Connect to logic low supply.
2 −IN Inverting Input.
3 +IN Noninverting Input.
4 −V
S
Negative Supply Voltage.
5 C
COMP
Compensation Capacitor. Tie to −V
S
. (See the Applications section for value.)
6 V
OUT
Output.
7 +V
S
Positive Supply Voltage.
8
DISABLE
Disable, Active Low.
1
When Pin 8 (
DISABLE
) is higher than Pin 1 (LOGIC REFERENCE) by approximately 2 V or more, the part is enabled. When Pin 8 is brought down to within about 1.5 V of
Pin 1, the part is disabled. (See the Specifications tables for exact disable and enable voltage levels.) If the disable feature is not going to be used, Pin 8 can be tied to
+V
S
or a logic high source, and Pin 1 can be tied to ground or logic low. Alternatively, if Pin 1 and Pin 8 are not connected, the part is in an enabled state.