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PDF ADC1005 Data sheet ( Hoja de datos )
| Número de pieza | ADC1005 | |
| Descripción | 10-Bit P Compatible A/D Converter | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ADC1005 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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June 1999
ADC1005
10-Bit µP Compatible A/D Converter
General Description
The ADC1005 is a CMOS 10-bit successive approximation
A/D converter. The 20-pin ADC1005 outputs 10-bit data in a
two-byte format for interface with 8-bit microprocessors.
The ADC1005 has differential inputs to permit rejection of
common-mode signals, allow the analog input range to be
offset, and also to permit the conversion of signals not re-
ferred to ground. In addition, the reference voltage can be
adjusted, allowing smaller voltage spans to be measured
with 10-bit resolution.
Features
n Easy interface to all microprocessors
n Differential analog voltage inputs
n Operates ratiometrically or with 5 VDC voltage reference
or analog span adjusted voltage reference
n 0V to 5V analog input voltage range with single 5V
supply
n On-chip clock generator
n TLL/MOS input/output compatible
n 0.3" standard width 20-pin DIP
Key Specifications
n Resolution
n Linearity Error
n Conversion Time
10 bits
±1⁄2 LSB and ±1 LSB
50 µs
Connection Diagram
ADC 1005 (for an 8–bit data bus)
Dual-In-Line Package
Top View
Ordering Information
Part Number Package
Outline
ADC1005BCJ-1 J20A
ADC1005BCJ
J20A
ADC1005CCJ-1 J20A
ADC1005CCJ J20A
Temperature
Range
0˚C to +70˚C
−40˚C to +85˚C
0˚C to +70˚C
−40˚C to +85˚C
Linearity
Error
±1⁄2 LSB
±1 LSB
DS005261-1
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
© 1999 National Semiconductor Corporation DS005261
www.national.com
1 page  
Functional Diagram
Typical Performance Characteristics
Logic Input Threshold
Voltage vs Supply Voltage
Delay from Falling Edge of
RD to Output data Valid vs
Load Capacitance
DS005261-3
CLK IN Schmitt Trip Levels
vs Supply Voltage
Output Current vs
Temperature
DS005261-21
DS005261-22
Typical Linearity Error
vs Clock Frequency
DS005261-23
DS005261-24
5
DS005261-25
www.national.com
5 Page 
Typical Applications (Continued)
Operating with Ratiometric Transducers
Handling ±5V Analog Inputs
VIN(−) = 0.15 VCC
15% of VCC ≤ VXDR ≤ 85% of VCC
DS005261-14
TRI-STATE Test Circuits and Waveforms
t1H
tIH, CL=10 pF
DS005261-15
DS005261-7
t0H
tr=20 ns
DS005261-9
tIH, CL=10 pF
DS005261-8
tr=20 ns
DS005261-10
11 www.national.com
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet ADC1005.PDF ] | |
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