Datasheet.kr   

ADC0808CCV 데이터시트 PDF




National Semiconductor에서 제조한 전자 부품 ADC0808CCV은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 ADC0808CCV 자료 제공

부품번호 ADC0808CCV 기능
기능 8-Bit uP Compatible A/D Converters with 8-Channel Multiplexer
제조업체 National Semiconductor
로고 National Semiconductor 로고


ADC0808CCV 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




전체 14 페이지수

미리보기를 사용할 수 없습니다

ADC0808CCV 데이터시트, 핀배열, 회로
October 1999
ADC0808/ADC0809
8-Bit µP Compatible A/D Converters with 8-Channel
Multiplexer
General Description
The ADC0808, ADC0809 data acquisition component is a
monolithic CMOS device with an 8-bit analog-to-digital con-
verter, 8-channel multiplexer and microprocessor compatible
control logic. The 8-bit A/D converter uses successive ap-
proximation as the conversion technique. The converter fea-
tures a high impedance chopper stabilized comparator, a
256R voltage divider with analog switch tree and a succes-
sive approximation register. The 8-channel multiplexer can
directly access any of 8-single-ended analog signals.
The device eliminates the need for external zero and
full-scale adjustments. Easy interfacing to microprocessors
is provided by the latched and decoded multiplexer address
inputs and latched TTL TRI-STATE® outputs.
The design of the ADC0808, ADC0809 has been optimized
by incorporating the most desirable aspects of several A/D
conversion techniques. The ADC0808, ADC0809 offers high
speed, high accuracy, minimal temperature dependence, ex-
cellent long-term accuracy and repeatability, and consumes
minimal power. These features make this device ideally
suited to applications from process and machine control to
consumer and automotive applications. For 16-channel mul-
tiplexer with common output (sample/hold port) see
ADC0816 data sheet. (See AN-247 for more information.)
Features
n Easy interface to all microprocessors
n Operates ratiometrically or with 5 VDC or analog span
adjusted voltage reference
n No zero or full-scale adjust required
n 8-channel multiplexer with address logic
n 0V to 5V input range with single 5V power supply
n Outputs meet TTL voltage level specifications
n Standard hermetic or molded 28-pin DIP package
n 28-pin molded chip carrier package
n ADC0808 equivalent to MM74C949
n ADC0809 equivalent to MM74C949-1
Key Specifications
n Resolution
n Total Unadjusted Error
n Single Supply
n Low Power
n Conversion Time
8 Bits
±12 LSB and ±1 LSB
5 VDC
15 mW
100 µs
Block Diagram
See Ordering
Information
TRI-STATE® is a registered trademark of National Semiconductor Corp.
© 1999 National Semiconductor Corporation DS005672
DS005672-1
www.national.com




ADC0808CCV pdf, 반도체, 판매, 대치품
Electrical Characteristics (Continued)
Digital Levels and DC Specifications: ADC0808CCN, ADC0808CCV, ADC0809CCN and ADC0809CCV, 4.75VCC5.25V,
−40˚CTA+85˚C unless otherwise noted
Symbol
Parameter
Conditions
Min Typ Max Units
DATA OUTPUTS AND EOC (INTERRUPT)
VOUT(1)
VOUT(0)
VOUT(0)
IOUT
Logical “1” Output Voltage
Logical “0” Output Voltage
Logical “0” Output Voltage EOC
TRI-STATE Output Current
VCC = 4.75V
IOUT = −360µA
IOUT = −10µA
IO=1.6 mA
IO=1.2 mA
VO=5V
VO=0
2.4 V(min)
4.5 V(min)
0.45 V
0.45 V
3 µA
−3 µA
Electrical Characteristics
Timing Specifications VCC=VREF(+)=5V, VREF(−)=GND, tr=tf=20 ns and TA=25˚C unless otherwise noted.
Symbol
Parameter
Conditions
MIn Typ
Max
tWS
tWALE
ts
tH
tD
Minimum Start Pulse Width
Minimum ALE Pulse Width
Minimum Address Set-Up Time
Minimum Address Hold Time
Analog MUX Delay Time
From ALE
(Figure 5)
(Figure 5)
(Figure 5)
(Figure 5)
RS=0(Figure 5)
100 200
100 200
25 50
25 50
1 2.5
tH1, tH0
t1H, t0H
tc
fc
tEOC
OE Control to Q Logic State
OE Control to Hi-Z
Conversion Time
Clock Frequency
EOC Delay Time
CL=50 pF, RL=10k (Figure 8)
CL=10 pF, RL=10k (Figure 8)
fc=640 kHz, (Figure 5) (Note 7)
(Figure 5)
125 250
125 250
90 100
116
10 640
1280
0 8+2 µS
CIN
COUT
Input Capacitance
TRI-STATE Output
Capacitance
At Control Inputs
At TRI-STATE Outputs
10 15
10 15
Units
ns
ns
ns
ns
µs
ns
ns
µs
kHz
Clock
Periods
pF
pF
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: All voltages are measured with respect to GND, unless othewise specified.
Note 3: A zener diode exists, internally, from VCC to GND and has a typical breakdown voltage of 7 VDC.
Note 4: Two on-chip diodes are tied to each analog input which will forward conduct for analog input voltages one diode drop below ground or one diode drop greater
than the VCCn supply. The spec allows 100 mV forward bias of either diode. This means that as long as the analog VIN does not exceed the supply voltage by more
than 100 mV, the output code will be correct. To achieve an absolute 0VDC to 5VDC input voltage range will therefore require a minimum supply voltage of 4.900 VDC
over temperature variations, initial tolerance and loading.
Note 5: Total unadjusted error includes offset, full-scale, linearity, and multiplexer errors. See Figure 3. None of these A/Ds requires a zero or full-scale adjust. How-
ever, if an all zero code is desired for an analog input other than 0.0V, or if a narrow full-scale span exists (for example: 0.5V to 4.5V full-scale) the reference voltages
can be adjusted to achieve this. See Figure 13.
Note 6: Comparator input current is a bias current into or out of the chopper stabilized comparator. The bias current varies directly with clock frequency and has little
temperature dependence (Figure 6). See paragraph 4.0.
Note 7: The outputs of the data register are updated one clock cycle before the rising edge of EOC.
Note 8: Human body model, 100 pF discharged through a 1.5 kresistor.
www.national.com
4

4페이지










ADC0808CCV 전자부품, 판매, 대치품
Timing Diagram
FIGURE 5.
DS005672-4
7 www.national.com

7페이지


구       성 총 14 페이지수
다운로드[ ADC0808CCV.PDF 데이터시트 ]

당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는

포괄적인 데이터시트를 제공합니다.


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 ]



관련 데이터시트

부품번호상세설명 및 기능제조사
ADC0808CCJ

8-Bit uP Compatible A/D Converters with 8-Channel Multiplexer

National Semiconductor
National Semiconductor
ADC0808CCN

8-Bit uP Compatible A/D Converters with 8-Channel Multiplexer

National Semiconductor
National Semiconductor

DataSheet.kr       |      2020   |     연락처      |     링크모음      |      검색     |      사이트맵