DAC8562FS Analog Devices Inc, DAC8562FS Datasheet

IC DAC 12BIT PARALLEL 5V 20-SOIC

DAC8562FS

Manufacturer Part Number
DAC8562FS
Description
IC DAC 12BIT PARALLEL 5V 20-SOIC
Manufacturer
Analog Devices Inc
Datasheet

Specifications of DAC8562FS

Rohs Status
RoHS non-compliant
Settling Time
16µs
Number Of Bits
12
Data Interface
Parallel
Number Of Converters
1
Voltage Supply Source
Single Supply
Power Dissipation (max)
30mW
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
20-SOIC (7.5mm Width)

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a
GENERAL DESCRIPTION
The DAC8562 is a complete, parallel input, 12-bit, voltage out-
put DAC designed to operate from a single +5 volt supply. Built
using a CBCMOS process, these monolithic DACs offer the
user low cost, and ease-of-use in +5 volt only systems.
Included on the chip, in addition to the DAC, is a rail-to-rail
amplifier, latch and reference. The reference (REFOUT) is
trimmed to 2.5 volts, and the on-chip amplifier gains up the
DAC output to 4.095 volts full scale. The user needs only sup-
ply a +5 volt supply.
The DAC8562 is coded straight binary. The op amp output
swings from 0 to +4.095 volts for a one millivolt per bit resolu-
tion, and is capable of driving 5 mA. Built using low tempera-
ture-coefficient silicon-chrome thin-film resistors, excellent
linearity error over temperature has been achieved as shown be-
low in the linearity error versus digital input code plot.
Digital interface is parallel and high speed to interface to the
fastest processors without wait states. The interface is very sim-
ple requiring only a single CE signal. An asynchronous CLR in-
put sets the output to zero scale.
REV. A
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
FEATURES
Complete 12-Bit DAC
No External Components
Single +5 Volt Operation
1 mV/Bit with 4.095 V Full Scale
True Voltage Output,
Very Low Power –3 mW
APPLICATIONS
Digitally Controlled Calibration
Servo Controls
Process Control Equipment
PC Peripherals
5 mA Drive
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
The DAC8562 is available in two different 20-pin packages,
plastic DIP and SOL-20. Each part is fully specified for opera-
tion over –40 C to +85 C, and the full +5 V
range.
For MIL-STD-883 applications, contact your local ADI sales
office for the DAC8562/883 data sheet which specifies opera-
tion over the –55 C to +125 C temperature range.
Figure 1. Linearity Error vs. Digital Input Code Plot
–0.25
–0.75
0.75
0.25
–0.5
0.5
–1
1
0
0
DGND
FUNCTIONAL BLOCK DIAGRAM
REF
REFOUT
+5 Volt, Parallel Input
CE
Complete 12-Bit DAC
1024
DAC REGISTER
DIGITAL INPUT CODE — Decimal
12-BIT
DAC-8562
DATA
DAC
12
12
V
T
DD
A
2048
= –55
= +5V
CLR
°
C, +25
V
DD
DAC8562
°
C, +125
+25
3072
°
5% power supply
C & +125
Fax: 617/326-8703
–55
V
AGND
OUT
°
C
°
C
°
C
4096

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DAC8562FS Summary of contents

Page 1

FEATURES Complete 12-Bit DAC No External Components Single +5 Volt Operation 1 mV/Bit with 4.095 V Full Scale True Voltage Output Drive Very Low Power –3 mW APPLICATIONS Digitally Controlled Calibration Servo Controls Process Control Equipment PC ...

Page 2

DAC8562–SPECIFICATIONS ELECTRICAL CHARACTERISTICS Parameter STATIC PERFORMANCE Resolution Relative Accuracy Differential Nonlinearity Zero-Scale Error Full-Scale Voltage Full-Scale Tempco ANALOG OUTPUT Output Current Load Regulation at Half Scale Capacitive Load REFERENCE OUTPUT Output Voltage Output Source Current Line Rejection Load Regulation LOGIC ...

Page 3

WAFER TEST LIMITS unless otherwise noted) Parameter STATIC PERFORMANCE Relative Accuracy Differential Nonlinearity Zero-Scale Error Full-Scale Voltage Reference Output Voltage LOGIC INPUTS Logic Input Low Voltage Logic Input High Voltage Input Leakage Current SUPPLY ...

Page 4

... Scale) REFOUT DB9 14 7 DB10 OUT AGND DB11 DGND CONNECT ORDERING GUIDE INL Temperature Model (LSB) Range DAC8562EP 1/2 – +85 C DAC8562FP 1 – +85 C DAC8562FS 1 – +85 C DAC8562GBC 1 +25 C DICE CHARACTERISTICS AGND DGND OUT 14 REFOUT 15 CLR DB0 DB1 DB2 DB3 V DD ...

Page 5

OPERATION The DAC8562 is a complete ready to use 12-bit digital-to- analog converter. Only one +5 V power supply is necessary for operation. It contains a voltage-switched, 12-bit, laser-trimmed digital-to-analog converter, a curvature-corrected bandgap refer- ence, a rail-to-rail output op ...

Page 6

DAC8562 As with any analog system recommended that the DAC8562 power supply be bypassed on the same PC card that contains the chip. Figure 10 shows the power supply rejection versus frequency performance. This should be taken into ...

Page 7

VFS 1 LSB 4.8 DATA = FFFH ° + 4.6 PROPER OPERATION 4.4 WHEN V SUPPLY DD VOLTAGE ABOVE CURVE 4.2 4.0 0.04 0.01 0.1 0.4 1.0 4.0 OUTPUT LOAD CURRENT – mA Figure 11. ...

Page 8

DAC8562–Typical Performance Characteristics DAC8562 +5V DD ° DATA = FFF H 1 0.1 0. 10k 100k 100 FREQUENCY – Hz Figure 20. Output Voltage Noise Density vs. Frequency 2V 100 ...

Page 9

APPLICATIONS SECTION Power Supplies, Bypassing, and Grounding All precision converter products require careful application of good grounding practices to maintain full-rated performance. Because the DAC8562 has been designed for +5 V applications ideal for those applications under microprocessor ...

Page 10

DAC8562 Unipolar Output Operation This is the basic mode of operation for the DAC8562. As shown in Figure 30, the DAC8562 has been designed to drive loads as low as 820 in parallel with 500 pF. The code table for ...

Page 11

V DD DATA V 13 OUT DAC-8562 16 CE REFOUT 14 15 CLR DGND AGND 12 10 Bipolar Output Operation Although the DAC8562 has been designed for single supply op- eration, bipolar operation is achievable using ...

Page 12

DAC8562 Alternatively, the output voltage can be coded in complementary offset binary using the circuit in Figure 35. This configuration eliminates the need for a pull-down resistor amp for REFOUT The transfer equation of the circuit is ...

Page 13

To compensate for the SSM2018’s gain constant temperature coefficient of –3300 ppm temperature-sensitive resistor (R7) manufactured by the Precision Resistor Com- pany with a temperature coefficient of +3500 ppm used ...

Page 14

DAC8562 Decoding Multiple DAC8562s The CE function of the DAC8562 can be used in applications to decode a number of DACs. In this application, all DACs re- ceive the same input data; however, only one of the DACs’ CE input ...

Page 15

DAC8562 – M68HC11 Interface Program Source Code * * DAC8562 to M68HC11 Interface Assembly Program * Adolfo A. Garcia * September 14, 1992 * * M68HC11 Register definitions * PORTB EQU $1004 PORTC EQU $1003 Port C control register * ...

Page 16

DAC8562 20-Pin Plastic DIP (P-Suffix PIN 1.07 (27.18) MAX 0.145 (3.683) MIN 0.125 (3.175) MIN 0.021 (0.533) 0.11 (2.79) 0.065 (1.66) 0.045 (1.15) 0.015 (0.381) 0.09 (2.28) LEAD NO. 1 IDENTIFIED BY DOT OR NOTCH ...

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