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National Semiconductor
National Semiconductor

DAC0808LCN Datasheet

8-Bit D/A Converter


DAC0808LCN Datasheet Preview


January 1995
DAC0808 DAC0807 DAC0806 8-Bit D A Converters
General Description
The DAC0808 series is an 8-bit monolithic digital-to-analog
converter (DAC) featuring a full scale output current settling
time of 150 ns while dissipating only 33 mW with g5V sup-
plies No reference current (IREF) trimming is required for
most applications since the full scale output current is typi-
cally g1 LSB of 255 IREF 256 Relative accuracies of bet-
ter than g0 19% assure 8-bit monotonicity and linearity
while zero level output current of less than 4 mA provides
8-bit zero accuracy for IREFt2 mA The power supply cur-
rents of the DAC0808 series are independent of bit codes
and exhibits essentially constant device characteristics over
the entire supply voltage range
The DAC0808 will interface directly with popular TTL DTL
or CMOS logic levels and is a direct replacement for the
MC1508 MC1408 For higher speed applications see
DAC0800 data sheet
Features
Y Relative accuracy g0 19% error maximum (DAC0808)
Y Full scale current match g1 LSB typ
Y 7 and 6-bit accuracy available (DAC0807 DAC0806)
Y Fast settling time 150 ns typ
Y Noninverting digital inputs are TTL and CMOS compati-
ble
Y High speed multiplying input slew rate 8 mA ms
Y Power supply voltage range g4 5V to g18V
Y Low power consumption 33 mW g5V
Block and Connection Diagrams
Dual-In-Line Package
Order Number
DAC0808 DAC0807
or DAC0806
See NS Package
Number J16A
M16A or N16A
TL H 5687 – 1
Small-Outline Package
TL H 5687 – 2
Ordering Information
Top View
TL H 5687 – 13
ACCURACY OPERATING TEMPERATURE
RANGE
J PACKAGE (J16A)
ORDER NUMBERS
N PACKAGE (N16A)
SO PACKAGE (M16A)
DAC0808LCN MC1408P8
7-bit
6-bit
0 CsTAsa75 C
0 CsTAsa75 C
DAC0807LCJ MC1408L7 DAC0807LCN MC1408P7
DAC0806LCJ MC1408L6 DAC0806LCN MC1408P6
Note Devices may be ordered by using either order number
DAC0808LCM
DAC0807LCM
DAC0806LCM
C1995 National Semiconductor Corporation TL H 5687
RRD-B30M115 Printed in U S A
Page 1

Absolute Maximum Ratings (Note 1)
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Power Supply Voltage
VCC
VEE
a18 VDC
b18 VDC
Digital Input Voltage V5–V12
b10 VDC to a18 VDC
Applied Output Voltage VO
b11 VDC to a18 VDC
Reference Current I14
5 mA
Reference Amplifier Inputs V14 V15
VCC VEE
Power Dissipation (Note 3)
1000 mW
ESD Susceptibility (Note 4)
TBD
Storage Temperature Range
Lead Temp (Soldering 10 seconds)
Dual-In-Line Package (Plastic)
Dual-In-Line Package (Ceramic)
Surface Mount Package
Vapor Phase (60 seconds)
Infrared (15 seconds)
b65 C to a150 C
260 C
300 C
215 C
220 C
Operating Ratings
Temperature Range
DAC0808LC Series
TMIN s TA s TMAX
0 sTA s a75 C
Electrical Characteristics
(VCC e 5V VEE e b15 VDC VREF R14 e 2 mA DAC0808 TA e b55 C to a125 C DAC0808C DAC0807C DAC0806C TA
e 0 C to a75 C and all digital inputs at high logic level unless otherwise noted )
Symbol
Parameter
Conditions
Min Typ
Max Units
Er
Relative Accuracy (Error Relative
(Figure 4)
to Full Scale IO)
DAC0808LC (LM1408-8)
DAC0807LC (LM1408-7) (Note 5)
DAC0806LC (LM1408-6) (Note 5)
Settling Time to Within LSB
(Includes tPLH)
TAe25 C (Note 6)
(Figure 5)
150
tPLH tPHL Propagation Delay Time
TA e 25 C (Figure 5)
30
TCIO
Output Full Scale Current Drift
g20
MSB
Digital Input Logic Levels
(Figure 3)
VIH High Level Logic ‘‘1’’
VIL Low Level Logic ‘‘0’’
2
MSB
Digital Input Current
(Figure 3)
High Level
Low Level
VIH e 5V
VIL e 0 8V
0
b0 003
I15 Reference Input Bias Current (Figure 3)
b1
Output Current Range
(Figure 3)
VEE e b5V
VEE e b15V TA e 25 C
0
0
20
20
IO Output Current
Output Current All Bits Low
VREF e 2 000V
R14 e 1000X
(Figure 3)
(Figure 3)
1 9 1 99
0
g0 19
g0 39
g0 78
100
08
0 040
b0 8
b3
21
42
21
4
%
%
%
%
ns
ns
ppm C
VDC
VDC
mA
mA
mA
mA
mA
mA
mA
Output Voltage Compliance (Note 2)
VEEeb5V IREFe1 mA
VEE Below b10V
Er s 0 19% TA e 25 C
b0 55 a0 4
b5 0 a0 4
VDC
VDC
2
Page 2

Electrical Characteristics (Continued)
(VCC e 5V VEE e b15 VDC VREF R14 e 2 mA DAC0808 TA e b55 C to a125 C DAC0808C DAC0807C DAC0806C TA
e 0 C to a75 C and all digital inputs at high logic level unless otherwise noted )
Symbol
Parameter
Conditions
Min Typ Max Units
SRIREF
Reference Current Slew Rate
Output Current Power Supply
Sensitivity
(Figure 6)
b5V s VEE s b16 5V
48
mA ms
0 05 2 7 mA V
Power Supply Current (All Bits
(Figure 3)
Low)
ICC
IEE
23
b4 3
22
b13
mA
mA
Power Supply Voltage Range
TA e 25 C (Figure 3)
VCC
VEE
45
b4 5
50
b15
55
b16 5
VDC
VDC
Power Dissipation
All Bits Low
All Bits High
VCC e 5V VEE e b5V
VCC e 5V VEE e b15V
VCC e 15V VEE e b5V
VCC e 15V VEE e b15V
33 170
106 305
90
160
mW
mW
mW
mW
Note 1 Absolute Maximum Ratings indicate limits beyond which damage to the device may occur DC and AC electrical specifications do not apply when operating
the device beyond its specified operating conditions
Note 2 Range control is not required
Note 3 The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX iJA and the ambient temperature TA The maximum
allowable power dissipation at any temperature is PD e (TJMAX b TA) iJA or the number given in the Absolute Maixmum Ratings whichever is lower For this
device TJMAX e 125 C and the typical junction-to-ambient thermal resistance of the dual-in-line J package when the board mounted is 100 C W For the dual-in-
line N package this number increases to 175 C W and for the small outline M package this number is 100 C W
Note 4 Human body model 100 pF discharged through a 1 5 kX resistor
Note 5 All current switches are tested to guarantee at least 50% of rated current
Note 6 All bits switched
Note 7 Pin-out numbers for the DAL080X represent the dual-in-line package The small outline package pinout differs from the dual-in-line package
Typical Application
 JA1 A2 A8
VOe10V
aa
24
256
TL H 5687 – 3
FIGURE 1 a10V Output Digital to Analog Converter (Note 7)
3
Page 3
Part Number DAC0808LCN
Manufactur National Semiconductor
Description 8-Bit D/A Converter
Total Page 11 Pages
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