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參數(shù)資料
| 型號： | ADC10462CIWM |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | ADC |
| 英文描述： | 10-Bit 600 ns A/D Converter with Input Multiplexer and Sample/Hold |
| 中文描述： | 2-CH 10-BIT FLASH METHOD ADC, PARALLEL ACCESS, PDSO24 |
| 封裝： | SOP-24 |
| 文件頁數(shù)： | 2/15頁 |
| 文件大小： | 342K |
| 代理商： | ADC10462CIWM |
Connection Diagrams
01110810
Top View
01110811
Top View
01110812
Top View
Pin Descriptions
DV
CC
, AV
CC
These are the digital and analog positive sup-
ply voltage inputs. They should always be
connected to the same voltage source, but
are brought out separately to allow for sepa-
rate bypass capacitors. Each supply pin
should be bypassed with a 0.1 μF ceramic
capacitor in parallel with a 10 μF tantalum
capacitor to ground.
This is the active low interrupt output. INT
goes low at the end of each conversion, and
returns to a high state following the rising
edge of RD .
This is the Sample/Hold control input. When
this pin is forced low (and CS is low), it
causes the analog input signal to be sampled
and initiates a new conversion.
This is the active low Read control input.
When this RD and CS are low, any data
present in the output registers will be placed
on the data bus.
This is the active low Chip Select control in-
put. When low, this pin enables the RD and S
/H pins.
On the multiple-input devices (ADC10462
and ADC10464), these pins select the analog
input that will be connected to the A/D during
the conversion. The input is selected based
on the state of S0 and S1 when S /H makes
its High-to-Low transition (See the Timing
Diagrams). The ADC10464 includes both S0
and S1. The ADC10462 includes just S0, and
the ADC10461 includes neither.
V
REF+
These are the reference voltage inputs. They
may be placed at any voltage between GND
INT
S /H
RD
CS
S0, S1
V
REF
,
and V
, but V
must be greater than
V
. An input voltage equal to V
pro-
duces an output code of 0, and an input volt-
age equal to (V
1 LSB) produces an
output code of 1023.
V
IN1
, V
IN2
,
V
IN3
These
are
the
analog
ADC10461
has
one
ADC10462 has two inputs (V
and V
IN1
),
and the ADC10464 has four inputs (V
,
V
, V
and V
). The impedance of the
source should be less than 500
for best
accuracy and conversion speed. For accurate
conversions, no input pin (even one that is
not selected) should be driven more than
50 mV above V
CC
or 50 mV below ground.
GND, AGND, DGND
These are the power supply ground pins. The
ADC10461 has a single ground pin (GND),
and the ADC10462 and ADC10464 have
separate analog and digital ground pins
(AGND and DGND) for separate bypassing of
the analog and digital supplies. The ground
pins should be connected to a stable,
noise-free system ground. For the devices
with two ground pins, both pins should be
returned to the same potential.
DB0–DB9
These are the TRI-STATE output pins.
SPEED ADJ
(ADC10462 and ADC10464 only). This pin is
normally left unconnected, but by connecting
a resistor between this pin and ground, the
conversion time can be reduced. See the
Typical Performance Curves and the table of
Electrical Characteristics.
V
IN
, V
IN0
,
input
input
pins.
(V
IN
),
The
the
A
www.national.com
2
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ADC10462CIWM NOPB | 制造商:Texas Instruments 功能描述:ADC Single 800ksps 10-bit Parallel 24-Pin SOIC W |
| ADC10462CIWMX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:10-Bit 600 ns A/D Converter with Input Multiplexer and Sample/Hold |
| ADC10462CIWMX/NOPB | 制造商:Texas Instruments 功能描述:ADC Single 800ksps 10-bit Parallel 24-Pin SOIC W T/R |
| ADC10462CMJ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single-Ended Data Acquisition System |
| ADC10464 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:10-Bit 600 ns A/D Converter with Input Multiplexer and Sample/Hold |
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