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DAC-08E Schematic ( PDF Datasheet ) - ON Semiconductor

Teilenummer DAC-08E
Beschreibung 8-Bit High-Speed Multiplying D/A Converter
Hersteller ON Semiconductor
Logo ON Semiconductor Logo 




Gesamt 14 Seiten
DAC-08E Datasheet, Funktion
DAC−08 SERIES
8−Bit High−Speed
Multiplying D/A Converter
The DAC-08 series of 8-bit monolithic multiplying Digital-to-
Analog Converters provide very high-speed performance coupled
with low cost and outstanding applications flexibility.
Advanced circuit design achieves 70 ns settling times with very
low glitch and at low power consumption. Monotonic multiplying
performance is attained over a wide 20-to-1 reference current range.
Matching to within 1 LSB between reference and full-scale currents
eliminates the need for full-scale trimming in most applications.
Direct interface to all popular logic families with full noise immunity
is provided by the high swing, adjustable threshold logic inputs.
Dual complementary outputs are provided, increasing versatility
and enabling differential operation to effectively double the peak-to-
peak output swing. True high voltage compliance outputs allow
direct output voltage conversion and eliminate output op amps in
many applications.
All DAC-08 series models guarantee full 8-bit monotonicity and
linearities as tight as 0.1% over the entire operating temperature
range. Device performance is essentially unchanged over the
"4.5 V to "18 V power supply range, with 37 mW power
consumption attainable at "5.0 V supplies.
The compact size and low power consumption make the DAC-08
attractive for portable and military aerospace applications.
Features
Fast Settling Output Current − 70 ns
Full-Scale Current Prematched to "1.0 LSB
Direct Interface to TTL, CMOS, ECL, HTL, PMOS
Relative Accuracy to 0.1% Maximum Overtemperature Range
High Output Compliance −10 V to +18 V
True and Complemented Outputs
Wide Range Multiplying Capability
Low FS Current Drift − "10ppm/°C
Wide Power Supply Range − "4.5 V to "18 V
Low Power Consumption − 37 mW at "5.0 V
Pb−Free Packages are Available*
Applications
8-Bit, 1.0 ms A-to-D Converters
Servo-Motor and Pen Drivers
Waveform Generators
Audio Encoders and Attenuators
Analog Meter Drivers
Programmable Power Supplies
CRT Display Drivers
High-Speed Modems
Other Applications where Low Cost, High Speed and Complete
Input/Output Versatility are Required
Programmable Gain and Attenuation
Analog-Digital Multiplication
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques Reference
Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2005
October, 2005 − Rev. 1
1
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16
1
SOIC−16
D SUFFIX
CASE 751B
16
1
PDIP−16
N SUFFIX
CASE 648
PIN CONNECTIONS
N Package
VLC 1
IO 2
V− 3
IO 4
B1 (MSB) 5
B2 6
B3 7
B4 8
16 COMPEN
15 VREF−
14 VREF+
13 V+
12 B8 (LSB)
11 B7
10 B6
9 B5
(Top View)
D Package*
V+ 1
VREF+ 2
VREF− 3
COMPEN 4
VLC 5
IO 6
V− 7
IO 8
16 B8 (LSB)
15 B7
14 B6
13 B5
12 B4
11 B3
10 B2
9 B1 (MSB)
(Top View)
*SO and non−standard pinouts.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 13 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 13 of this data sheet.
Publication Order Number:
DAC−08/D






DAC-08E Datasheet, Funktion
DAC−08 SERIES
TEST CIRCUITS
VCC
13
5 REQ = 200 W
6 14
7 15
81
9 DAC-08 2
10 4
11 16 OPEN
12
RIN
1 kW
RP
0.1 mF
3
RL SCOPE
VEE
2V
VIN 0
dI I dV
dt + RL dt
10%
90%
SLEWING TIME
Figure 4. Reference Current Slew Rate Measurement
0
2.0 mA
VCC
ICC
DIGITAL
INPUTS
A1
A2
A3
A4
A5
A6
A7
A8
(+)
VI
5
6
7
8
9
10
11
12
II
13
DAC-08
3
I14
14
R14
15 I15
1 R15
2
4
16 IO
C
VREF (+)
VO
OUTPUT
RL
NOTES:
(See text for values of C.)
Typical values of R14 = R15 = 1 kW
VREF = +2.0 V
IEE
VEE
C = 15 pF
VI and II apply to inputs A1 through A8
The resistor tied to Pin 15 is to temperature compensate the bias current and may not be necessary for all applications.
Ť ŤIO
+
K
A1
2
)
A2
4
)
A3
8
)
A4
16
)
A5
32
)
A6
64
)
A7
128
)
A8
256
where
K
[
VREF
R14
and AN = ‘1’ if AN is at High Level
AN = ‘0’ if AN is at Low Level
Figure 5. Notation Definitions
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DAC-08E pdf, datenblatt
DAC−08 SERIES
V = 10V
IR = 2mA
DAC-08
14
4
2
a. Positive Output
5kW
5kW
VOUT
VOUT
IR = 2mA
DAC-08
14
4
2
VOUT
b. Negative Output
VOUT
Figure 28. Unipolar Voltage Output for High Impedance Output
IR = 2mA
DAC-08
14
4
2
V = 10V
10kW
VOUT
10kW
VOUT
B1 B2 B3 B4 B5 B6 B7 B8
VOUT
Positive full-scale
1 1 1 1 1 1 1 1 −9.920V
Positive FS − 1LSB
1 1 1 1 1 1 1 0 −9.840V
+ Zero-scale + 1LSB
Zero-scale
1 0 0 0 0 0 0 1 −0.080V
10000000
0.000
Zero-scale − 1LSB
01111111
0.080
Negative full scale − 1LSB 0 0 0 0 0 0 0 1 +9.920
Negative full scale
0 0 0 0 0 0 0 0 +10.000
VOUT
+10.000
+9.920
+0.160
+0.080
0.000
−9.840
−9.920
Figure 29. Basic Bipolar Output Operation (Offset Binary)
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