AD5422 Analog Devices, AD5422 Datasheet - Page 12
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AD5422
Manufacturer Part Number
AD5422
Description
Single Channel, 16-Bit, Serial Input, Current Source & Voltage Output DAC
Manufacturer
Analog Devices
Datasheet
1.AD5412.pdf
(40 pages)
Specifications of AD5422
Resolution (bits)
16bit
Dac Update Rate
40kSPS
Dac Settling Time
18µs
Max Pos Supply (v)
+40V
Single-supply
No
Dac Type
I or V Out
Dac Input Format
SPI
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AD5412/AD5422
TSSOP
16
17
19
20
N/A
21
22
23
24
25 (EPAD)
Pin No.
LFCSP
23
24
26
27
28, 29
32
33
34
36
41 (EPAD)
Mnemonic
DV
SELECT
C
I
BOOST
CAP1, CAP2
V
+V
−V
AV
Exposed
paddle
OUT
COMP
OUT
DD
SENSE
SENSE
CC
Description
When connected to GND, this pin disables the internal supply, and an external supply
must be connected to the DV
supply. See the AD5412/AD5422 Features section.
Optional compensation capacitor connection for the voltage output buffer. Connecting
a 4 nF capacitor between this pin and the V
to 1 µF. It should be noted that the addition of this capacitor reduces the bandwidth of
the output amplifier, increasing the settling time.
Current Output Pin.
Optional External Transistor Connection. Connecting an external transistor reduces the
power dissipated in the AD5412/AD5422. See theAD5412/AD5422 Features section.
Connection for Optional Output Filtering Capacitor. See the AD5412/AD5422 Features
section.
Buffered Analog Output Voltage. The output amplifier is capable of directly driving a
1 kΩ, 2000 pF load.
Sense connection for the positive voltage output load connection.
Sense connection for the negative voltage output load connection.
Positive Analog Supply Pin. Voltage ranges from 10.8 V to 60 V.
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
recommended that the paddle be thermally connected to a copper plane for enhanced
thermal performance.
Rev. D | Page 12 of 40
CC
pin. Leave this pin unconnected to enable the internal
OUT
pin allows the voltage output to drive up
SS
pin. It is