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参数资料
| 型号： | ADC0841BCV |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | ADC |
| 英文描述： | 8-Bit P Compatible A/D Converter |
| 中文描述： | 1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PQCC20 |
| 封装： | PLASTIC, CC-20 |
| 文件页数： | 3/16页 |
| 文件大小： | 380K |
| 代理商： | ADC0841BCV |
Electrical Characteristics
(Continued)
The following specifications apply for V
CC
=5 V
DC
unless otherwise specified.
Boldface limits apply from T
MIN
to T
MAX
;
all
other limits T
A
=T
j
=25C.
ADC0841BCN, ADC0841CCN
ADC0841BCV, ADC0841CCV
Typ
Tested
(Note 6)
Limit
(Note 7)
Symbol
Parameter
Conditions
Design
Limit
(Note 8)
Units
DIGITAL AND DC CHARACTERISTICS
I
IN(0)
Logical “0” Input
Current (Max)
V
OUT(1)
Logical “1”
Output Voltage (Min)
V
IN
=0V
0.005
1
μA
V
CC
=4.75V
I
OUT
=360 μA
I
OUT
=10 μA
V
CC
=4.75V
I
OUT
=1.6 mA
V
OUT
=0V
V
OUT
=5V
V
OUT
=0V
2.8
4.6
0.34
2.4
4.5
0.4
V
V
V
V
OUT(0)
Logical “0”
Output Voltage (Max)
TRI-STATE Output
Current (Max)
Output Source
Current (Min)
Output Sink
Current (Min)
Supply Current (Max)
I
OUT
0.01
0.01
14
0.3
0.3
7.5
3
3
6.5
μA
μA
mA
I
SOURCE
I
SINK
V
OUT
=V
CC
16
9.0
8.0
mA
I
CC
CS =1, V
REF
Open
1
2.3
2.5
mA
AC Characteristics
The following specifications apply for V
CC
= 5V
DC
, t
r
= t
f
= 10 ns unless otherwise specified.
Boldface limits apply from T
MIN
to T
MAX
;
all other limits T
A
= T
J
= 25C.
Tested
Limit
(Note 7)
40
150
225
Design
Limit
(Note 8)
60
Symbol
Parameter
Conditions
Typ
Units
(Note 6)
30
50
145
t
C
t
W(WR)
t
ACC
Maximum Conversion Time (See Graph)
Minimum WR Pulse Width
Maximum Access Time (Delay from Falling Edge
of RD to Output Data Valid)
TRI-STATE Control (Maximum Delay from Rising
Edge of RD to Hi-Z State)
Maximum Delay from Falling Edge of WR or RD to
Reset of INTR
Capacitance of Logic Inputs
Capacitance of Logic Outputs
μs
ns
ns
(Note 9)
C
L
= 100 pF
(Note 9)
C
L
= 10 pF, R
L
= 10k,
t
r
= 20 ns (Note 9)
(Note 9)
t
1H
, t
0H
125
200
ns
t
WI
, t
RI
200
400
ns
C
IN
C
OUT
5
5
pF
pF
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating
the device beyond its specified operating conditions.
Note 2:
All voltages are measured with respect to the ground pins.
Note 3:
During over-voltage conditions (V
<
0V and V
>
V
) the maximum input current at any one pin is
±
5 mA. If the current is limited to
±
5 mA at all the pins
no more than four pins can be in this condition in order to meet the Input Current Per Package (
±
20 mA) specification.
Note 4:
Total unadjusted error includes offset, full-scale, and linearity.
Note 5:
For V
()
≥
V
(+) the digital output code will be 0000 0000. Two on-chip diodes are tied to each analog input, which will forward-conduct for analog input
voltages one diode drop below ground or one diode drop greater than V
supply. Be careful during testing at low V
levels (4.5V), as high level analog inputs (5V)
can cause this input diode to conduct, especially at elevated temperatures, and cause errors for analog inputs near full-scale. The spec allows 50 mV forward bias
of either diode. This means that as long as the analog V
does not exceed the supply voltage by more than 50 mV, the output code will be correct. To achieve an
absolute 0 V
DC
to 5 V
DC
input voltage range will therefore require a minimum supply voltage of 4.950 V
DC
over temperature variations, initial tolerance and loading.
Note 6:
Typicals are at 25C and represent most likely parametric norm.
Note 7:
Tested limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).
Note 8:
Design limits are guaranteed but not 100% production tested. These limits are not used to calculate outgoing quality levels.
Note 9:
The temperature coefficient is 0.3%/C.
Note 10:
Human body model, 100 pF discharged through 1.5 k
resistor.
www.national.com
3
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相关代理商/技术参数 |
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|---|---|
| ADC0841BCV/A+ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog-to-Digital Converter， 8-Bit |
| ADC0841BCV/B+ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog-to-Digital Converter， 8-Bit |
| ADC0841BJ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog-to-Digital Converter， 8-Bit |
| ADC0841CCJ/A+ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog-to-Digital Converter， 8-Bit |
| ADC0841CCN | 制造商:Texas Instruments 功能描述: |
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