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PL320-1G13  PL321-1Y01  PL321-1R24-2  PL31814-1R21  
ML2280CCS Serial I/O 8-Bit A/D Converters
型号:   ML2280CCS
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描述:   Serial I/O 8-Bit A/D Converters
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品牌   MICRO-LINEAR [ MICRO LINEAR CORPORATION ]
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May 1997
ML2280*, ML2283**
Serial I/O 8-Bit A/D Converters
GENERAL DESCRIPTION
The ML2280 and ML2283 are 8-bit successive
approximation A/D converters with serial I/O and
configurable input multiplexers with up to 4 input
channels.
All errors of the sample-and-hold incorporated on the
ML2280 and ML2283 are accounted for in the analog-to-
digital converters accuracy specification.
The voltage reference can be externally set to any value
between GND and V
CC
, thus allowing a full conversion
over a relatively small voltage span if desired.
The ML2283 is an enhanced double polysilicon, CMOS,
pin-compatible second source for the ADC0833 A/D
converter. All parameters are guaranteed over temperature
with a power supply voltage of 5V ±10%.
FEATURES
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Conversion time: 6µs
ML2280 capable of digitizing a 5V, 40kHz sine wave
Total unadjusted error with external
reference: ±1/2LSB or ±1LSB
Sample-and-hold: 375ns acquisition
0 to 5V analog input range with single 5V
power supply
2.5V reference provides 0 to 5V analog input range
No zero- or full-scale adjust required
Low power: 12.5mW MAX
Analog input protection: 25mA (min) per input
Differential analog voltage inputs (ML2280)
Programmable multiplexer with differential or single
ended analog inputs (ML2283)
0.3" width 8- or 14-pin DIP, or 8-Pin SOIC (ML2280)
Superior pin-compatible replacement for ADC0833
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* This Part Is Obsolete
** This Part Is End Of Life As Of August 1, 2000
BLOCK DIAGRAM
ML2281
CONTROL
AND
TIMING
CS
CLK
INPUT
SHIFT-REGISTER
DI
ML2283
SARS
OUTPUT
SHIFT-REGISTER
DO
4-BIT
CONTROL
AND
TIMING
CLK
CS
V
IN+
A/D WITH SAMPLE & HOLD FUNCTION
+
SUCCESSIVE
+
APPROXIMATION
COMP
REGISTER
8pF
Σ
OUTPUT
SHIFT-REGISTER
DO
SE
CH0
V
REF/2
4-CHANNEL
S.E.
CH1
OR
2-CHANNEL
CH2
DIFF
MULTIPLEXER
CH3
A/D
CONVERTER
WITH
SAMPLE & HOLD
FUNCTION
DGND
V
IN–
D/A
CONVERTER
8pF
SHUNT
REGULATOR
AGND V
REF/2
V
CC
V+
V
CC
GND
1
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