DAC08CP 반도체 회로 부품 판매점
8-Bit/ High-Speed/ Multiplying D/A Converter (Universal Digital Logic Interface)
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 Analog Devices |
a 8-Bit, High-Speed, Multiplying D/A Converter
(Universal Digital Logic Interface)
DAC08
FEATURES
Fast Settling Output Current: 85 ns
Full-Scale Current Prematched to ؎1 LSB
Direct Interface to TTL, CMOS, ECL, HTL, PMOS
Nonlinearity to 0.1% Maximum over
Temperature Range
High Output Impedance and Compliance:
–10 V to +18 V
Complementary Current Outputs
Wide Range Multiplying Capability: 1 MHz Bandwidth
Low FS Current Drift: ؎10 ppm/؇C
Wide Power Supply Range: ؎4.5 V to ؎18 V
Low Power Consumption: 33 mW @ ؎5 V
Low Cost
Available in Die Form
GENERAL DESCRIPTION
The DAC08 series of 8-bit monolithic digital-to-analog convert-
ers provide very high-speed performance coupled with low cost
and outstanding applications flexibility.
Advanced circuit design achieves 85 ns settling times with very
low “glitch” energy 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, adjust-
able threshold logic input.
High voltage compliance complementary current outputs are
provided, increasing versatility and enabling differential opera-
tion to effectively double the peak-to-peak output swing. In
many applications, the outputs can be directly converted to
voltage without the need for an external op amp.
All DAC08 series models guarantee full 8-bit monotonicity,
and nonlinearities as tight as ± 0.1% over the entire operating
temperature range are available. Device performance is essen-
tially unchanged over the ± 4.5 V to ± 18 V power supply range,
with 33 mW power consumption attainable at ± 5 V supplies.
The compact size and low power consumption make the DAC08
attractive for portable and military/aerospace applications;
devices processed to MIL-STD-883, Level B are available.
DAC08 applications include 8-bit, 1 µs A/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 and other
applications where low cost, high speed and complete input/
output versatility are required.
FUNCTIONAL BLOCK DIAGRAM
MSB
V+ VLC B1 B2 B3 B4 B5 B6
13 1 5 6 7 8 9 10
DAC08
14
VREF (+)
BIAS
NETWORK
CURRENT
SWITCHES
15
VREF (–)
REFERENCE
AMPLIFIER
16
COMP
3
V–
B7
11
LSB
B8
12
4 IOUT
2
IOUT
REV. B
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 that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2002
DAC08–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS (@ VS = ؎15 V, IREF = 2.0 mA, –55؇C Յ TA Յ +125؇C for DAC08/08A, 0؇C Յ TA Յ +70؇C
for DAC08E and DAC08H, –40؇C to +85؇C for DAC08C, unless otherwise noted. Output characteristics refer to both IOUT and IOUT .)
Parameter
Symbol Conditions
DAC08A/H
DAC08E
DAC08C
Min Typ Max Min Typ Max Min
Typ Max Unit
Resolution
Monotonicity
Nonlinearity
Settling Time
Propagation Delay
Each Bit
All Bits Switched
Full-Scale Tempco1
Output Voltage
Compliance
(True Compliance)
Full Range Current
Full Range Symmetry
Zero-Scale Current
Output Current Range
Output Current Noise
Logic Input Levels
Logic “0”
Logic Input “1”
Logic Input Current
Logic “0”
Logic Input “1”
Logic Input Swing
Logic Threshold Range
Reference Bias Current
Reference Input
Slew Rate
Power Supply Sensitivity
88
88
NL ± 0.1
tS To ± 1/2 LSB,
All Bits Switched ON
85 135
or OFF, TA = 25°C1
tPLH
tPHL
TCIFS
TA = 25°C1
DAC08E
35 60
35 60
± 10 ± 50
VOC Full-Scale Current
Change <1/2 LSB,
–10
+18 –10
ROUT > 20 MΩ typ
IFR4 VREF = 10.000 V
1.984 1.992 2.000 1.94
R14, R15 = 5.000 kΩ
TA = 25°C
IFRS
IFR4 – IFR2
± 0.5 ± 4
IZS 0.1 1
IOR1 R14, R15 = 5.000 kΩ 2.1
2.1
IOR2 VREF = +15.0 V,
V– = –10 V
VREF = +25.0 V,
V– = –12 V
4.2
4.2
IREF = 2 mA
25
VIL
VIL
IIL
IIH
VIS
VTHR
I15
dI/dt
PSSIFS+
PSSIFS–
VLC = 0 V
0.8
2
VLC = 0 V
VIN = –10 V to +0.8 V
VIN = 2.0 V to 18 V
V– = –15 V
VS = ± 15 V1
–2 –10
0.002 10
–10 +18
–10 +13.5
–1 –3
REQ = 200 Ω
48
RL = 100 Ω
CC = 0 pF See Fast Pulsed Ref. Info Following.1
V+ = 4.5 V to 18 V
± 0.0003 ± 0.01
V– = –4.5 V to –18 V
± 0.002 ± 0.01
IREF = 1.0 mA
2
–10
–10
4
Power Supply Current
I+
I–
I+
I–
I+
I–
VS = ± 5 V, IREF = 1.0 mA
VS = +5 V, –15 V,
IREF = 2.0 mA
VS = ± 15 V,
IREF = 2.0 mA
2.3 3.8
–4.3 –5.8
2.4 3.8
–6.4 –7.8
2.5 3.8
–6.5 –7.8
Power Dissipation
PD ± 5 V, IREF = 1.0 mA
+5 V, –15 V,
IREF = 2.0 mA
± 15 V, IREF = 2.0 mA
33 48
108 136
135 174
NOTES
1Guaranteed by design.
Specifications subject to change without notice.
8
8
± 0.19
85 150
35 60
35 60
± 10 ± 80
± 50
+18 –10
1.99 2.04 1.94
±1 ±8
0.2 2
2.1
4.2
25
0.8
2
–2
0.002
–1
8
–10
10
+18
+13.5
–3
–10
–10
4
± 0.0003 ± 0.01
± 0.002 ± 0.01
2.3 3.8
–4.3 –5.8
2.4 3.8
–6.4 –7.8
2.5 3.8
–6.5 –7.8
33 48
103 136
135 174
Bits
Bits
± 0.39 % FS
85 150 ns
35 60 ns
35 60 ns
± 10 ± 80 ppm/°C
+18 V
1.99 2.04 mA
± 2 ± 16 µA
0.2 4
µA
mA
mA
25 nA
0.8 V
V
–2
0.002
–1
8
–10
10
+18
+13.5
–3
µA
µA
V
V
µA
mA/µs
± 0.0003 ± 0.01 %∆IO/%∆V+
± 0.002 ± 0.01 %∆IO/%∆V–
2.3 3.8 mA
–4.3 –5.8 mA
2.4 3.8 mA
–6.4 –7.8 mA
2.5 3.8 mA
–6.5 –7.8 mA
33 48 mW
108 136 mW
135 174 mW
–2– REV. B
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DAC08CP converter
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