參數(shù)資料
型號(hào)： ADC12662CIV
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類(lèi)： ADC
英文描述： 12-Bit, 1.5 MHz, 200 mW A/D Converter with Input Multiplexer and Sample/Hold
中文描述： 2-CH 12-BIT FLASH METHOD ADC, PARALLEL ACCESS, PQCC44
封裝： PLASTIC, LCC-44
文件頁(yè)數(shù)： 5/23頁(yè)
文件大小： 495K
代理商： ADC12662CIV
Dynamic Characteristics
(Note 10) (Continued)
The following specifications apply for DV
= AV
= +5V, V
= +4.096V, V
= AGND, R
S
= 25
, f
IN
=
100 kHz, 0 dB from fullscale, and f
s
= 1.5 MHz, unless otherwise specified.
Boldface limits apply for T
A
= T
J
from T
MIN
to
T
MAX
;
all other limits T
A
= T
J
= +25C.
Symbol
Parameter
Conditions
Typ
Limit
(Note 8)
Units
(Limit)
(Note 7)
SNR
Signal-to-Noise Ratio
(Note 11)
Total Harmonic Distortion
(Note 12)
Effective Number of Bits
(Note 13)
Intermodulation Distortion
T
MIN
to T
MAX
70
67.5
dB (min)
THD
T
MIN
to T
MAX
80
70
dBc (max)
ENOB
T
MIN
to t
MAX
11.3
10.8
Bits (min)
IMD
f
IN
= 88.7 kHz, 89.5 kHz
80
dBc
DC Electrical Characteristics
The following specifications apply for DV
= AV
= +5V, V
REF+(SENSE)
= +4.096V, V
= AGND, and f
s
= 1.5 MHz,
unless otherwise specified.
Boldface limits apply for T
A
= T
J
MIN
to T
MAX
;
all other limits T
A
= T
J
= +25C.
Symbol
Parameter
Conditions
Typ
Limit
(Note 8)
2.0
0.8
1.0
1.0
Units
(Limit)
V (min)
V (max)
μA (max)
μA (max)
(Note 7)
V
IN(1)
V
IN(0)
I
IN(1)
I
IN(0)
Logical “1” Input Voltage
Logical “0” Input Voltage
Logical “1” Input Current
Logical “0” Input Current
DV
CC
= AV
CC
= +5.5V
DV
CC
= AV
CC
= +4.5V
0.1
0.1
V
OUT(1)
Logical “1” Output Voltage
DV
CC
= AV
CC
= +4.5V,
I
OUT
= 360 μA
I
OUT
= 100 μA
DV
CC
= AV
CC
= +4.5V,
I
OUT
= 1.6 mA
2.4
4.25
V (min)
V (min)
V
OUT(0)
Logical “0” Output Voltage
0.4
V (max)
I
OUT
TRI-STATE
Output
Leakage Current
TRI-STATE Output Capacitance
Digital Input Capacitance
DV
CC
Supply Current
AV
CC
Supply Current
Standby Current (DI
CC
+ AI
CC
)
Pins DB0–DB11
0.1
3
μA (max)
C
OUT
C
IN
DI
CC
AI
CC
I
STANDBY
Pins DB0–DB11
5
4
2
32
50
pF
pF
3
37
mA (max)
mA (max)
μA
PD = 0V
AC Electrical Characteristics
The following specifications apply for DV
CC
= AV
CC
= +5V, V
REF+(SENSE)
= +4.096V, V
REF(SENSE)
= AGND, and f
s
= 1.5 MHz,
unless otherwise specified.
Boldface limits apply for T
A
= T
J
from T
MIN
to T
MAX
;
all other limits T
A
= T
J
= +25C.
Symbol
Parameter
Conditions
Typ
Limit
(Note 8)
Units
(Limits)
(Note 7)
f
s
Maximum Sampling Rate
(1/t
THROUGHPUT
)
Conversion Time
(S/H Low to EOC High)
Aperture Delay
(S/H Low to Input Voltage Held)
1.5
MHz (min)
t
CONV
580
510
660
ns (min)
ns (max)
t
AD
20
ns
t
S/H
S/H Pulse Width
10
5
ns (min)
ns (max)
ns (min)
ns (max)
400
60
126
t
EOC
S/H Low to EOC Low
90
A
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