參數(shù)資料
型號: LTC1282ACN
廠商: LINEAR TECHNOLOGY CORP
元件分類: ADC
英文描述: 3V 140ksps 12-Bit Sampling A/D Converter with Reference
中文描述: 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDIP24
封裝: 0.300 INCH, PLASTIC, DIP-24
文件頁數(shù): 4/24頁
文件大?。?/td> 439K
代理商: LTC1282ACN
4
LTC1282
SYMBOL
f
SAMPLE(MAX)
PARAMETER
Maximum Sampling Frequency
CONDITIONS
Commercial (Note 13)
Military (Note 13)
Commercial
Military
MIN
140
120
TYP
MAX
UNITS
kHz
kHz
G
G
t
CONV
Conversion Time
G
G
6.0
6.5
μ
s
μ
s
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
1
t
2
CS to RD Setup Time
RD
to BUSY
Delay
G
0
C
L
= 50pF
Commercial
Military
C
L
= 20pF (Note 13)
Commercial
Military
C
L
= 100pF (Note 13)
Commercial
Military
(Note 13)
(Note 13)
(Note 13)
Commercial
Military
(Note 13)
Commercial
Military
(Note 13)
(Note 13)
140
200
230
260
180
200
220
200
240
260
G
G
t
3
Data Access Time After RD
100
G
G
110
G
G
t
4
t
5
t
6
RD Pulse Width
CS to RD Hold Time
Data Setup Time After BUSY
G
t
3
0
G
60
85
110
120
120
130
150
G
G
t
7
Bus Relinquish Time
40
40
40
0
0
40
1140
1500
60
G
G
t
8
t
9
t
10
t
11
HBEN to RD Setup Time
HBEN to RD Hold Time
Delay Between RD Operations
Delay Between Conversions
G
G
G
Commercial (Note 13)
Military (Note 13)
G
G
450
t
12
Aperture Delay of Sample-and-Hold
30
TW U
(Note 5)
LTC1282A/LTC1282B
Note 8:
Bipolar offset is the different voltage measured from –0.5LSB
when the output code flickers between 0000 0000 0000 and 1111 1111
1111.
Note 9:
Full-scale change when V
SS
= 0V (Unipolar Mode) or
–3V (Bipolar Mode).
Note 10:
Full-scale change when V
DD
= 3V.
Note 11:
The LTC1282 can perform unipolar and bipolar conversions.
When V
SS
is grounded (i.e. –0.1V
V
SS
), the ADC will convert in unipolar
mode with input voltage of 0V to 2.5V. When V
SS
is taken negative (i.e. V
SS
–2.5V), the ADC will convert in bipolar mode with an input voltage of
±
1.25V. A
IN
must not exceed V
DD
or fall below V
SS
by more than 50mV for
specified accuracy.
Note 12:
Guaranteed by design, not subject to test.
Note 13:
Recommended operating conditions.
Note 14:
Commercial grade parts are designed to operate over the
temperature range of –40
°
C to 85
°
C but are neither tested nor guaranteed
beyond 0
°
C to 70
°
C. Industrial grade parts specified and tested over
–40
°
C to 85
°
C are available on special request. Consult factory.
The
G
indicates specifications which apply over the full operating
temperature range; all other limits and typicals T
A
= 25
°
C.
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
All voltage values are with respect to ground with DGND and
AGND wired together (unless otherwise noted).
Note 3:
When these pin voltages are taken below V
SS
or above V
DD
, they
will be clamped by internal diodes. This product can handle input currents
greater than 60mA below V
SS
or above V
DD
without latchup.
Note 4:
When these pin voltages are taken below V
SS
they will be clamped
by internal diodes. This product can handle input currents greater than
60mA below V
SS
without latchup. These pins are not clamped to V
DD
.
Note 5:
V
DD
= 3V, V
SS
= 0V for unipolar mode and V
SS
= –3V for bipolar
mode, f
SAMPLE
= 140kHz, t
r
= t
f
= 5ns unless otherwise specified.
Note 6:
Linearity, offset and full-scale specifications apply for unipolar and
bipolar modes.
Note 7:
Integral nonlinearity is defined as the deviation of a code from a
straight line passing through the actual endpoints of the transfer curve.
The deviation is measured from the center of the quantization band.
相關(guān)PDF資料
PDF描述
LTC1282ACSW 3V 140ksps 12-Bit Sampling A/D Converter with Reference
LTC1282BC 3V 140ksps 12-Bit Sampling A/D Converter with Reference
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LTC1282BCSW 3V 140ksps 12-Bit Sampling A/D Converter with Reference
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