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ADC0808MFK View Datasheet(PDF) - Texas Instruments

Part NameDescriptionManufacturer
ADC0808MFK CMOS ANALOG-TO-DIGITAL CONVERTER WITH 8-CHANNEL ?ULTIPLEXER TI
Texas Instruments TI
ADC0808MFK Datasheet PDF : 8 Pages
1 2 3 4 5 6 7 8
ą
Total Unadjusted Error . . . ± 0.75 LSB Max
Resolution of 8 Bits
100-µs Conversion Time
Ratiometric Conversion
Monotonous Over the Entire A/D Conversion
Range
No Missing Codes
Easy interface With Microprocessors
Latched 3-State Outputs
Latched Address Inputs
Single 5-V Supply
Low Power Consumption
Designed to Be Interchangeable With
National Semiconductor ADC0808CJ
description
ADC0808M
CMOS ANALOGĆTOĆDIGITAL CONVERTER
WITH 8ĆCHANNEL MULTIPLEXER
SGLS005A − D2642, NOVEMBER 1986 − REVISED MAY 1988
J PACKAGE
(TOP VIEW)
31
42
INPUTS 5 3
64
75
START 6
EOC 7
2−5 8
OEN 9
CLK 10
VCC 11
REF+ 12
GND 13
2 − 7 14
28 2
27 1 INPUTS
26 0
25 A
24 B
ADDRESS
23 C
22 ALE
21 2 − 1 (MSB)
20 2 − 2
19 2 − 3
18 2 − 4
17 2 − 8 (LSB)
16 REF−
15 2 − 6
The ADC0808M is a monolithic CMOS device with
an 8-channel multiplexer, an 8-bit analog-to-digital
(A/D) converter, and microprocessor-compatible
control logic. The 8-channel multiplexer can be
controlled by a microprocessor through a 3-bit
address decoder with address load to select any
one of eight single-ended analog switches
connected directly to the comparator. The 8-bit
A/D converter uses the successive-approximation
conversion technique featuring a high-impedance
threshold detector, a switched capacitor array, a
sample-and-hold, and a successive- approxima-
tion register (SAR). Detailed information on
interfacing to most popular microprocessors is
readily available from the factory.
FK PACKAGE
(TOP VIEW)
INPUT 7
START
EOC
2−5
OE
CLK
VCC
4 3 2 1 28 27 26
5
25
6
24
7
23
8
22
9
21
10
20
11
19
12 13 14 15 16 17 18
A
B ADDRESS
C
ALE
2 − 1 (MSB)
2−2
2−3
The comparison and converting methods used
eliminate the possibility of missing codes,
nonmonotonicity, and the need for zero or
full-scale adjustment. Also featured are latched
3-state outputs from the SAR and latched inputs
to the multiplexer address decoder. The single 5-V
supply and low power requirements make the
ADC0808M especially useful for a wide variety of
applications. Ratiometric conversion is made
possible by access to the reference voltage input
terminals.
The ADC0808M is characterized for operation over the full military temperature range of − 55°C to 125°C.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77001
Copyright 1988, Texas Instruments Incorporated
1
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