ADC1005CCJ National Semiconductor, ADC1005CCJ Datasheet

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ADC1005CCJ

Manufacturer Part Number
ADC1005CCJ
Description
ADC Single SAR 10-Bit Parallel 20-Pin CDIP
Manufacturer
National Semiconductor
Datasheet

Specifications of ADC1005CCJ

Package
20CDIP
Resolution
10 Bit
Architecture
SAR
Number Of Analog Inputs
1
Differential Input
Yes
Digital Interface Type
Parallel
Input Type
Voltage
Polarity Of Input Voltage
Unipolar

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© 2009 National Semiconductor Corporation
10-Bit μP Compatible A/D Converter
General Description
NOTE: This device is obsolete. This data sheet is provid-
ed for information only.
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.
Connection Diagram
Ordering Information
TRI-STATE
®
is a registered trademark of National Semiconductor Corporation.
NOTE: All versions of this device are obsolete
ADC1005BCJ-1
ADC1005BCJ
ADC1005CCJ-1
Part Number
5261 Version 8 Revision 2
5261
ADC 1005 (for an 8–bit data bus)
Dual-In-Line Package
Package
Outline
J20A
J20A
J20A
ADC1005
Top View
Print Date/Time: 2009/08/26 22:47:16
−40°C to +85°C
Temperature
0°C to +70°C
0°C to +70°C
Features
Key Specifications
Range
Easy interface to all microprocessors
Differential analog voltage inputs
Operates ratiometrically or with 5 V
analog span adjusted voltage reference
0V to 5V analog input voltage range with single 5V supply
On-chip clock generator
TLL/MOS input/output compatible
0.3 standard width 20-pin DIP
Resolution
Linearity Error
Conversion Time
Linearity
±½ LSB
526101
±1 LSB
Error
DC
±½ LSB and ±1 LSB
voltage reference or
OBSOLETE
August 26, 2009
www.national.com
10 bits
50 μs

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ADC1005CCJ Summary of contents

Page 1

... Connection Diagram Ordering Information Part Number NOTE: All versions of this device are obsolete ADC1005BCJ-1 ADC1005BCJ ADC1005CCJ-1 TRI-STATE ® registered trademark of National Semiconductor Corporation. © 2009 National Semiconductor Corporation 5261 Version 8 Revision 2 ADC1005 Features ■ ...

Page 2

... DC 2 5261 Version 8 Revision 2 Print Date/Time: 2009/08/26 22:47: ADC1005BCJ,   ADC1005BCJ-1,   −40°C ADC1005CCJ-1 ADC1005BCJ-1, ADC1005CCJ-1 Design Typ Tested Design Limit (Note 5) Limit (Note 6) (Note 7) ±0.5 ±1 ±0.5 ±1 ±0.5 ±1 4.8 2.4 4.8 7 ...

Page 3

... Version 8 Revision 2 Print Date/Time: 2009/08/26 22:47:16 ADC1005BCJ-1, ADC1005CCJ-1 Typ Tested Design Limit (Note 5) Limit Limit (Note 6) (Note 7) 2.0 0.8 1 0.005 −0.005 −1 3.1 2.7 3.1 3.5 1.8 1 ...

Page 4

AC Electrical Characteristics The following specifications apply for V apply from All other limits T MIN MAX Parameter f , Clock Frequency MIN CLK MAX Clock Duty Cycle MIN MAX t , Conversion Time MIN C ...

Page 5

Functional Diagram Typical Performance Characteristics Logic Input Threshold Voltage vs Supply Voltage 5261 Version 8 Revision 2 Delay from Falling Edge Output data Valid vs Load Capacitance 526121 5 Print Date/Time: 2009/08/26 22:47:16 526103 526122 www.national.com ...

Page 6

CLK IN Schmitt Trip Levels vs Supply Voltage Typical Linearity Error vs Clock Frequency Timing Diagrams www.national.com 526123 526125 Start Conversion 6 5261 Version 8 Revision 2 Print Date/Time: 2009/08/26 22:47:16 Output Current vs Temperature 526124 526105 ...

Page 7

Note: All timing is measured from the 50% voltage points. Byte Order DB7 MSB 1st Bit 9 2nd Bit 1 5261 Version 8 Revision 2 Output Enable and Reset INTR Byte Sequencing for ADC1005 8-Bit Data Bus Connection DB6 DB5 ...

Page 8

Block Diagram Note 9: CS shown twice for clarity. Note 10: SAR=Successive Approximation Register. Functional Description 1.0 GENERAL OPERATION A block diagram of the A/D converter is shown in of the inputs and outputs are shown and the major logic ...

Page 9

As long as the CS input and WR input remain low, the A/ D will remain in a reset state. Conversion will start after at least one of these inputs makes a low-to-high transition. 1.3 Output Control After the ...

Page 10

THE ANALOG INPUTS 3.1 Analog Differential Voltage Inputs and Common-Mode Rejection The differential inputs of these converters reduce the effects of common-mode input noise, which is defined as noise com- mon to both selected “+” and “−” inputs (60 ...

Page 11

POWER SUPPLIES Noise spikes on the V supply line can cause conversion CC errors as the comparator will respond to this noise. A low in- ductance tantalum filter capacitor should be used close to the pin and values of ...

Page 12

Typical Applications V (− ≤ ≤ XDR CC www.national.com Operating with Ratiometric Transducers Handling ±5V Analog Inputs 12 5261 Version 8 Revision 2 Print Date/Time: 2009/08/26 22:47:16 ...

Page 13

TRI-STATE Test Circuits and Waveforms 5261 Version 8 Revision 2 526107 t = =20 ns 526108 r 13 Print Date/Time: 2009/08/26 22:47: = 526109 ...

Page 14

... Physical Dimensions Order Number ADC1005BCJ, ADC1005BCJ-1 or ADC1005CCJ-1 www.national.com inches (millimeters) unless otherwise noted Hermetic Dual-In-Line Package (J) NS Package Number J20A 14 5261 Version 8 Revision 2 Print Date/Time: 2009/08/26 22:47:16 ...

Page 15

Notes 15 5261 Version 8 Revision 2 Print Date/Time: 2009/08/26 22:47:16 www.national.com ...

Page 16

... For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www.national.com/ldo LED Lighting www ...

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