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부품번호 | DAC0800LCM 기능 |
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기능 | 8-Bit Digital-to-Analog Converters | ||
제조업체 | National Semiconductor | ||
로고 | |||
전체 11 페이지수
June 1999
DAC0800/DAC0802
8-Bit Digital-to-Analog Converters
General Description
The DAC0800 series are monolithic 8-bit high-speed
current-output digital-to-analog converters (DAC) featuring
typical settling times of 100 ns. When used as a multiplying
DAC, monotonic performance over a 40 to 1 reference cur-
rent range is possible. The DAC0800 series also features
high compliance complementary current outputs to allow dif-
ferential output voltages of 20 Vp-p with simple resistor loads
as shown in Figure 1. The reference-to-full-scale current
matching of better than ±1 LSB eliminates the need for
full-scale trims in most applications while the nonlinearities
of better than ±0.1% over temperature minimizes system er-
ror accumulations.
The noise immune inputs of the DAC0800 series will accept
TTL levels with the logic threshold pin, VLC, grounded.
Changing the VLC potential will allow direct interface to other
logic families. The performance and characteristics of the
device are essentially unchanged over the full ±4.5V to
±18V power supply range; power dissipation is only 33 mW
with ±5V supplies and is independent of the logic input
states.
The DAC0800, DAC0802, DAC0800C and DAC0802C are a
direct replacement for the DAC-08, DAC-08A, DAC-08C,
and DAC-08H, respectively.
Features
n Fast settling output current: 100 ns
n Full scale error: ±1 LSB
n Nonlinearity over temperature: ±0.1%
n Full scale current drift: ±10 ppm/˚C
n High output compliance: −10V to +18V
n Complementary current outputs
n Interface directly with TTL, CMOS, PMOS and others
n 2 quadrant wide range multiplying capability
n Wide power supply range: ±4.5V to ±18V
n Low power consumption: 33 mW at ±5V
n Low cost
Typical Applications
DS005686-1
FIGURE 1. ±20 VP-P Output Digital-to-Analog Converter (Note 5)
Ordering Information
Non-Linearity
Temperature
Order Numbers
Range
J Package (J16A) (Note 1) N Package (N16E) (Note 1) SO Package (M16A)
±0.1% FS
±0.19% FS
±0.19% FS
0˚C ≤ TA ≤ +70˚C
−55˚C ≤ TA ≤ +125˚C
0˚C ≤ TA ≤ +70˚C
DAC0802LCJ
DAC0800LJ
DAC0800LCJ
DAC-08HQ DAC0802LCN
DAC-08Q
DAC-08EQ DAC0800LCN
DAC-08HP
DAC-08EP
DAC0802LCM
DAC0800LCM
Note 1: Devices may be ordered by using either order number.
© 1999 National Semiconductor Corporation DS005686
www.national.com
Block Diagram (Note 5)
Typical Performance Characteristics
Full Scale Current
vs Reference Current
LSB Propagation Delay vs IFS
DS005686-2
Reference Input
Frequency Response
DS005686-22
Reference Amp
Common-Mode Range
Logic Input Current
vs Input Voltage
DS005686-23
DS005686-24
Curve 1: CC=15 pF, VIN=2 Vp-p centered at 1V.
Curve 2: CC=15 pF, VIN=50 mVp-p centered at
200 mV.
Curve 3: CC=0 pF, VIN=100 mVp-p centered at
0V and applied through 50Ω connected to pin
14.2V applied to R14.
VTH — VLC vs Temperature
DS005686-25
Note. Positive common-mode range is always
(V+) − 1.5V.
www.national.com
DS005686-26
4
DS005686-27
4페이지 Typical Applications (Continued)
DS005686-6
Pos. Full Scale
Pos. Full Scale−LSB
Zero Scale+LSB
Zero Scale
Zero Scale−LSB
Neg. Full Scale+LSB
Neg. Full Scale
B1 B2 B3 B4 B5 B6 B7 B8 EO
EO
1 1 1 1 1 1 1 1 −9.920 +10.000
1 1 1 1 1 1 1 0 −9.840 +9.920
1 0 0 0 0 0 0 1 −0.080 +0.160
1 0 0 0 0 0 0 0 0.000 +0.080
0 1 1 1 1 1 1 1 +0.080 0.000
0 0 0 0 0 0 0 1 +9.920 −9.840
0 0 0 0 0 0 0 0 +10.000 −9.920
FIGURE 7. Basic Bipolar Output Operation (Note 5)
If RL = RL within ±0.05%, output is symmetrical about ground
DS005686-18
Pos. Full Scale
Pos. Full Scale−LSB
(+)Zero Scale
(−)Zero Scale
Neg. Full Scale+LSB
Neg. Full Scale
B1 B2 B3 B4 B5 B6 B7 B8
11111111
11111110
10000000
01111111
00000001
00000000
EO
+9.960
+9.880
+0.040
−0.040
−9.880
−9.960
FIGURE 8. Symmetrical Offset Binary Operation (Note 5)
DS005686-19
For complementary output (operation as negative logic DAC), connect inverting input of op amp to IO (pin 2), connect IO (pin 4) to ground.
FIGURE 9. Positive Low Impedance Output Operation (Note 5)
7 www.national.com
7페이지 | |||
구 성 | 총 11 페이지수 | ||
다운로드 | [ DAC0800LCM.PDF 데이터시트 ] |
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
DAC0800LCJ | 8-Bit Digital-to-Analog Converters | National Semiconductor |
DAC0800LCM | 8-Bit Digital-to-Analog Converters | National Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |