AD5447 Analog Devices, AD5447 Datasheet - Page 17
AD5447
Manufacturer Part Number
AD5447
Description
Dual 12-Bit, High Bandwidth Multiplying DACs with Parallel Interface
Manufacturer
Analog Devices
Datasheet
1.AD5428.pdf
(32 pages)
Specifications of AD5447
Resolution (bits)
12bit
Dac Update Rate
21.3MSPS
Dac Settling Time
80ns
Max Pos Supply (v)
+5.5V
Single-supply
Yes
Dac Type
Current Out
Dac Input Format
Par
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Data Sheet
INPUTS
DATA
DAC A/B
DGND
DB11
DB7
DB9
DB0
R/W
V
CS
DD
1
2
R1, R2 AND R3, R4 USED ONLY IF GAIN ADJUSTMENT IS REQUIRED.
C1, C2 PHASE COMPENSATION (1pF TO 2pF) IS REQUIRED WHEN USING
HIGH SPEED AMPLIFIERS TO PREVENT RINGING OR OSCILLATION.
AD5428/AD5440/AD5447
POWER-ON
CONTROL
BUFFER
RESET
INPUT
LOGIC
LATCH
LATCH
Figure 38. Unipolar Operation
Rev. C | Page 17 of 32
V
V
REF
REF
(±10V)
(±10V)
8-/10-/12-BIT
A
R-2R DAC A
8-/10-/12-BIT
B
V
R-2R DAC B
V
IN
IN
A
B
R1
R3
1
1
R
R
I
AGND
I
OUT
OUT
R
R
FB
FB
B
A
A
B
R2
R4
AD5428/AD5440/AD5447
1
1
AGND
AGND
C1
C2
2
2
V
V
OUT
OUT
A
B