Datasheet

Data Sheet AD5412/AD5422
Rev. I | Page 13 of 44
Pin No.
Mnemonic Description
TSSOP LFCSP
16 23
DV
CC
SELECT
When connected to GND, this pin disables the internal supply, and an external supply
must be connected to the DV
CC
pin. Leave this pin unconnected to enable the internal
supply. See the AD5412/AD5422 Features section.
17 24 C
COMP
Optional compensation capacitor connection for the voltage output buffer. Connecting
a 4 nF capacitor between this pin and the V
OUT
pin allows the voltage output to drive up
to 1 μF. It should be noted that the addition of this capacitor reduces the bandwidth of
the output amplifier, increasing the settling time.
19 26 I
OUT
Current Output Pin.
20 27 BOOST
Optional External Transistor Connection. Connecting an external transistor reduces the
power dissipated in the AD5412/AD5422. See the AD5412/AD5422 Features section.
N/A 28, 29 CAP1, CAP2
Connection for Optional Output Filtering Capacitor. See the AD5412/AD5422 Features
section.
21 32 V
OUT
Buffered Analog Output Voltage. The output amplifier is capable of directly driving a
1 kΩ, 2000 pF load.
22 33 +V
SENSE
Sense connection for the positive voltage output load connection.
23 34 −V
SENSE
Sense connection for the negative voltage output load connection.
24 36 AV
DD
Positive Analog Supply Pin. Voltage ranges from 10.8 V to 60 V.
25 (EPAD) 41 (EPAD)
Exposed
paddle
Negative Analog Supply Pin. Voltage ranges from –3 V to –24 V. This paddle can be connected
to 0 V if the output voltage range is unipolar. The paddle can be left electrically unconnected
provided that a supply connection is made at the AV
SS
pin. It is recommended that the
paddle be thermally connected to a copper plane for enhanced thermal performance.