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ADC08138CIWM 데이터시트 PDF




National Semiconductor에서 제조한 전자 부품 ADC08138CIWM은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 ADC08138CIWM 기능
기능 8-Bit High-Speed Serial I/O A/D Converters with Multiplexer Options/ Voltage Reference/ and Track/Hold Function
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ADC08138CIWM 데이터시트, 핀배열, 회로
June 1999
ADC08131/ADC08134/ADC08138
8-Bit High-Speed Serial I/O A/D Converters with
Multiplexer Options, Voltage Reference, and Track/Hold
Function
General Description
The ADC08131/ADC08134/ADC08138 are 8-bit successive
approximation A/D converters with serial I/O and config-
urable input multiplexers with up to 8 channels. The serial
I/O is configured to comply with the NSC MICROWIREse-
rial data exchange standard for easy interface to the
COPSfamily of controllers, and can easily interface with
standard shift registers or microprocessors.
All three devices provide a 2.5V band-gap derived reference
with guaranteed performance over temperature.
A track/hold function allows the analog voltage at the positive
input to vary during the actual A/D conversion.
The analog inputs can be configured to operate in various
combinations of single-ended, differential, or
pseudo-differential modes. In addition, input voltage spans
as small as 1V can be accommodated.
Applications
n Digitizing automotive sensors
n Process control/monitoring
n Remote sensing in noisy environments
n Embedded diagnostics
Features
n Serial digital data link requires few I/O pins
n Analog input track/hold function
n 4- or 8-channel input multiplexer options with address
logic
n On-chip 2.5V band-gap reference (±2% over
temperature guaranteed)
n No zero or full scale adjustment required
n TTL/CMOS input/output compatible
n 0V to 5V analog input range with single 5V power
supply
Key Specifications
n Resolution
8 Bits
n Conversion time (fC = 1 MHz)
8 µs (Max)
n Power dissipation
20 mW (Max)
n Single supply
n Total unadjusted error
5 VDC (±5%)
±12 LSB and ±1 LSB
n Linearity Error (VREF = 2.5V)
±12 LSB
n No missing codes (over temperature)
n On-board Reference
+2.5V ±1.5% (Max)
Ordering Information
Industrial
(−40˚C TA +85˚C)
ADC08131CIWM
ADC08134CIWM
ADC08138CIWM
Package
M14B
M14B
M20B
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
COPSmicrocontrollers and MICROWIREare trademarks of National Semiconductor Corporation.
© 1999 National Semiconductor Corporation DS010749
www.national.com




ADC08138CIWM pdf, 반도체, 판매, 대치품
Electrical Characteristics (Continued)
The
face
following specifications
limits apply for TA =
TaJpp=lyTfMoIrNVtCoCT=MA+X5;
VDC, VREF = +2.5
all other limits TA
=VDTCJ
a=n2d5f˚CCL.K
=
1
MHz
unless
otherwise
specified.
Bold-
Symbol
Parameter
Conditions
Typical
(Note 8)
Limits
(Note 9)
Units
(Limits)
DIGITAL AND DC CHARACTERISTICS
ISINK
Output Sink Current
Supply Current
VOUT = VCC
8.0 mA (min)
ICC
ADC08134, ADC08138
CS = HIGH
ADC08131 (Note 16)
3.0 mA (max)
6.0 mA (max)
Electrical Characteristics
The following specifications apply for VCC = +5 VDC, and fCLK = 1 MHz unless otherwise specified. Boldface limits apply for
TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25˚C.
Symbol
Parameter
Conditions
Typical
(Note 8)
Limits
(Note 9)
Units
(Limits)
REFERENCE CHARACTERISTICS
VREFOUT
Output Voltage
DC08134, ADC08138
2.5
±2%
2.5 ±1.5%
V
VREF/T Temperature Coefficient
Sourcing
(0 IL +4 mA)
ADC08134,
ADC08138
40 ppm/˚C
0.003
0.1
VREF/IL Load Regulation (Note 17)
Sourcing
(0 IL +2 mA)
ADC08131
Sinking
(−1 IL 0 mA)
ADC08134,
ADC08138
0.003
0.2
0.1
0.5
%/mA
(max)
Sinking
(−1 IL 0 mA)
ADC08131
0.2 0.5
Line Regulation
ISC Short Circuit Current
4.75V VCC 5.25V
VREF = 0V
ADC08134,
ADC08138
VREF = 0V
ADC08131
0.5
8
8
6 mV (max)
25
mA
(max)
25
TSU
VREF/t
Start-Up Time
Long Term Stability
VCC: 0V 5V
CL = 100 µF
20
200
ms
ppm/1 kHr
Electrical Characteristics
The following specifications apply for VCC = +5 VDC, VREF = +2.5 VDC and tr = tf = 20 ns unless otherwise specified. Boldface
limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25˚C.
Symbol
Parameter
Conditions
Typical
(Note 8)
Limits
(Note 9)
Units
(Limits)
fCLK Clock Frequency
10 kHz (min)
1 MHz (max)
Clock Duty Cycle
40 % (min)
(Note 14)
60 % (max)
www.national.com
4

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ADC08138CIWM 전자부품, 판매, 대치품
Typical Converter Performance Characteristics
Linearity Error vs
Reference Voltage
Linearity Error vs
Temperature
Linearity Error vs
Clock Frequency
DS010749-27
Power Supply Current vs
Temperature (ADC08138,
ADC08134)
Output Current vs
Temperature
DS010749-28
DS010749-29
Power Supply Current
vs Clock Frequency
DS010749-30
Note: For ADC08131 add IREF
DS010749-31
Typical Reference Performance Characteristics
Load Regulation
Line Regulation
(3 Typical Parts)
Output Drift
vs Temperature
(3 Typical Parts)
DS010749-32
DS010749-33
DS010749-34
DS010749-35
7 www.national.com

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ADC08138CIWM

8-Bit High-Speed Serial I/O A/D Converters with Multiplexer Options/ Voltage Reference/ and Track/Hold Function

National Semiconductor
National Semiconductor

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