SNAS527C – JUNE 1999 – REVISED MARCH 2013
ADC0816/ADC0817 8-Bit
μP
Compatible A/D Converters
with16-Channel Multiplexer
Check for Samples:
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FEATURES
Easy interface to all microprocessors
Operates ratiometrically or with 5 V
DC
or
analog span adjusted voltage reference
16-channel multiplexer with latched control
logic
Outputs meet TTL voltage level specifications
0V to 5V analog input voltage range with
single 5V supply
No zero or full-scale adjust required
Standard hermetic or molded 40-pin MDIP
package
Temperature range
−40°C
to +85°Cor
−55°C
to
+125°C
Latched TRI-STATE output
Direct access to “comparator in” and
“multiplexer out” for signal conditioning
ADC0816 equivalent to MM74C948
ADC0817 equivalent to MM74C948-1
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DESCRIPTION
The ADC0816, ADC0817 data acquisition component
is a monolithic CMOS device with an 8-bit analog-to-
digital
converter,16-channel
multiplexer
and
microprocessor compatible control logic. The 8-bit
A/D converter uses successive approximation as the
conversion technique. The converter features a high
impedance chopper stabilized comparator, a 256R
voltage divider with analog switch tree and a
successive approximation register. The 16-channel
multiplexer can directly access any one of 16-single-
ended analog signals, and provides the logic for
additional channel expansion. Signal conditioning of
any analog input signal is eased by direct access to
the multiplexer output, and to the input of the 8-bit
A/D converter.
The device eliminates the need for external zero and
full-scale
adjustments.
Easy
interfacing
to
microprocessors is provided by the latched and
decoded multiplexer address inputs and latched TTL
TRI-STATE
®
outputs.
The design of the ADC0816, ADC0817 has been
optimized by incorporating the most desirable aspects
of several A/D conversion techniques. The
ADC0816,ADC0817 offers high speed, high
accuracy,
minimal
temperature
dependence,
excellent long-term accuracy and repeatability, and
consumes minima lpower. These features make this
device ideally suited to applications from process and
machine control to consumer and automotive
applications. For similar performance in an 8-channel,
28-pin, 8-bit A/D converter, see the ADC0808,
ADC0809 data sheet. (See AN-258 for more
information.)
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KEY SPECIFICATIONS
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Resolution ........................8 Bits
Total Unadjusted Error....±½ LSB and ±1
Single Supply....................5 V
DC
Low Power........................15 mW
Conversion Time..............100 µs
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
TRI-STATE is a registered trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
Copyright © 1999–2013, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
TI [ TEXAS INSTRUMENTS ]
