PRELIMINARY TECHNICAL DATA
QUAD, Parallel-Input, Voltage Output,
a
12-/10-Bit Digital-to-Analog Converter
AD5582/AD5583
FEATURES
FUNCTIONAL DIAGRAM
12-Bit Linearity and Monotonic –40oC to +125oC
Single +5V to +12V or dual 5V supply
Unipolar or Bipolar Operation
Double Buffered Registers Enable Simultaneous Multi-
Channels Update
V
V
V
V
V
RLA RHA RLB RHB
DD
3
2
4
5
1
A1
A0
37
ADDR
DECODE
36
24
6
V
V
OA
OB
4 Separate Rail-to Rail Reference Inputs
Parallel Interface
Data Readback Capability
DB11
DB10 25
I
N
T
E
R
F
A
C
E
7
26
DB9
27
DB8
Do
5µs Settling Time
28
38
39
DB7
RA
RB
DAC
REG
IN
Di
20kΩ
20kΩ
29
DB6
REG
APPLICATIONS
30
DB5
Process Control Equipment
Closed Loop Servo Control
Data Acquisition Systems
Digitally Controlled Calibration
Motor Control
31
DB4
40 RC
32
DB3
33
AD5582
DB2
34
DB1
8
AGND
OE
35
DB0
Optical Network Control Loops
23
CS
V
9
OC
GENERAL DESCRIPTION
22
W/R
CONTROL
LOGIC
V
V
10
19
LOGIC
OD
The AD5582/AD5583 family of quad, 12-/10-bit, voltage-output
digital-to-analog converter is designed to operate from a single +5
to +15 volt or a dual 5V supply. Built using a CBCMOS process,
this monolithic DAC offers the user low cost, and ease-of-use in
single or dual-supply systems.
17
MSB
18
21
RS
LDAC
16
12
11
20
14
13
15
V
V
V
V
V
RLC SS
RHC
DGND
RLD
RHD
DVDD
The applied external reference VREF determines the full-scale
output voltage. Valid VREF values include VSS<VREF<VDD resulting
in a wide selection of full scale outputs. For multiplying
applications AC inputs can be as large as |VDD-VSS|. Two on-board
precision trimmed resistors are available for 4-Quadrant
configurations.
+2.5V
VREFH
AD5582
DAC A
ADR421
A
B
C
D
2.5V
2.5V
A doubled-buffered parallel interface offers 25Mbps data load rates.
A common level-sensitive load-DAC strobe (LDAC) input allows
simultaneous update of all DAC outputs from previously loaded
Input Registers. An external asynchronous reset (RS) forces all
registers to the zero code state when MSB='0' or to midscale when
MSB='1'.
RA
DAC B
DAC C
DAC D
RC
RB
VREFL
2.5V
2.5V
A
B
C
D
-2.5V
Both parts are offered in the same pin-out to allow users to select
the amount of resolution appropriate for their application without
circuit card redesign.
The AD5582/AD5583 are specified over the extended industrial
(-40°C to +125°C) temperature range. Packages available include
thin 1.1 mm TSSOP-48 package.
DIG ITAL CIRCUITRY O MITTED FO R CLARITY
Figure 1 Using Onboard Offset resistors to generate a negative
voltage REF
REV PrC, 23 APR '01
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©Analog Devices, Inc., 2000