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ADC0809CCN Schematic ( PDF Datasheet ) - Micro Linear Corporation

Teilenummer ADC0809CCN
Beschreibung P Compatible 8-Bit A/D Converter with 8-Channel Multiplexer
Hersteller Micro Linear Corporation
Logo Micro Linear Corporation Logo 




Gesamt 12 Seiten
ADC0809CCN Datasheet, Funktion
May 1997
ML2258*
µP Compatible 8-Bit A/D Converter
with 8-Channel Multiplexer
GENERAL DESCRIPTION
The ML2258 combines an 8-bit A/D converter, 8-channel
analog multiplexer, and a microprocessor compatible 8-
bit parallel interface and control logic in a single
monolithic device.
Easy interface to microprocessors is provided by the
latched and decoded multiplexer address inputs and
latched three-state outputs.
The device is suitable for a wide range of applications
from process and machine control to consumer,
automotive, and telecommunication applications.
The ML2258 is an enhanced, pin-compatible, second
source for the industry standard ADC0808/ADC0809. The
ML2258 enhancements are faster conversion time, true
sample and hold function, superior power supply
rejection, wider reference range, and a double buffered
data bus as well as faster digital timing. All parameters
are guaranteed over temperature with a power supply
voltage of 5V ±10%.
BLOCK DIAGRAM
FEATURES
s Conversion time
6.6µs
s Total unadjusted error
±1/2LSB or ±1LSB
s No missing codes
s Sample and hold
390ns acquisition
s Capable of digitizing a 5V, 50kHz sine wave
s 8-input multiplexer
s 0V to 5V analog input range with single 5V
power supply
s Operates ratiometrically or with up to 5V
voltage reference
s No zero-or full-scale adjust required
s Analog input protection
25mA per input min
s Low power dissipation
3mA max
s TTL and CMOS compatible digital inputs and outputs
s Standard 28-pin DIP or surface mount PCC
s Superior pin compatible replacement for ADC0808 and
ADC0809
* Some Packages Are End Of Life As Of August 1, 2000
START CLOCK
IN0
IN1
IN2
IN3 8-CHANNEL
MULTIPLEXER
IN4
IN5
IN6
IN7
ADDR0
ADDR1
ADDR2
ADDRESS
LATCH ENABLE
ADDRESS
LATCH
AND
DECODER
A/D WITH
SAMPLE HOLD
CONTROL & TIMING
END OF CONVERSION
(INTERRUPT)
COMPARATOR
S.A.R.
SWITCH TREE
THREE
STATE
OUTPUT
LATCH
BUFFER
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
VCC GND +VREF
CAPACITOR/
RESISTOR
ARRAY
–VREF OUTPUT
ENABLE
1






ADC0809CCN Datasheet, Funktion
ML2258
TYPICAL PERFORMANCE CURVES (Continued)
1
0.75
VCC = 5V
fCLK = 10.4MHz
0.5
0.25
–55 C
125 C
25 C
0
01
23
VREF (VDC)
4
Figure 3. Linearity Error vs VREF Voltage
5
2
1.5
1
0.5
0
0
1
VCC = 5V
VREF = 5V
VIN = 0V
VOS = 3MV
fCLK = 10.4MHz
TA = 25 C
23
VREF (VDC)
4
5
Figure 4. Unadjusted Offset Error vs VREF Voltage
6

6 Page









ADC0809CCN pdf, datenblatt
ML2258
ORDERING INFORMATION
PART NUMBER
ML2258BIP (EOL)
ML2258BIQ
ML2258CIP (EOL)
ML2258CIQ
ALTERNATE
PART NUMBER
ADC0808CCN
ADC0808CCV
ADC0809CCN
ADC0809CCV
TOTAL
UNADJUSTED ERROR
±1/2 LSB
±1LSB
TEMPERATURE
RANGE
–40°C to 85°C
–40°C to 85°C
–40°C to 85°C
–40°C to 85°C
PACKAGE
Molded DIP (P28N)
Molded PCC (Q28)
Molded DIP (P28N)
Molded PCC (Q28)
© Micro Linear 1997
is a registered trademark of Micro Linear Corporation
Products described in this document may be covered by one or more of the following patents, U.S.: 4,897,611; 4,964,026; 5,027,116; 5,281,862; 5,283,483; 5,418,502; 5,508,570; 5,510,727; 5,523,940;
5,546,017; 5,559,470; 5,565,761; 5,592,128; 5,594,376; Japan: 2598946; 2619299. Other patents are pending.
Micro Linear reserves the right to make changes to any product herein to improve reliability, function or design.
Micro Linear does not assume any liability arising out of the application or use of any product described herein,
neither does it convey any license under its patent right nor the rights of others. The circuits contained in this
data sheet are offered as possible applications only. Micro Linear makes no warranties or representations as to
whether the illustrated circuits infringe any intellectual property rights of others, and will accept no responsibility
or liability for use of any application herein. The customer is urged to consult with appropriate legal counsel
before deciding on a particular application.
2092 Concourse Drive
San Jose, CA 95131
Tel: 408/433-5200
Fax: 408/432-0295
12 DS2258-01

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