參數(shù)資料
型號(hào): LTC1448CN8
廠商: LINEAR TECHNOLOGY CORP
元件分類(lèi): DAC
英文描述: Low-Power LinCMOS(TM) Dual Comparator with Totem Pose Output 8-CDIP -55 to 125
中文描述: DUAL, SERIAL INPUT LOADING, 14 us SETTLING TIME, 12-BIT DAC, PDIP8
封裝: 0.300 INCH, PLASTIC, DIP-8
文件頁(yè)數(shù): 3/12頁(yè)
文件大小: 241K
代理商: LTC1448CN8
3
LTC1448
V
CC
= 2.7V to 5.5V, V
OUT A
and V
OUT B
unloaded, REF
V
CC
, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
ELECTRICAL CHARACTERISTICS
Note 4:
Digital inputs at 0V or V
CC
.
Note 5:
V
OUT
can only swing from (GND +
V
OS
) to (V
CC
V
OS
) when
output is unloaded.
Note 6.
Guaranteed by design, not subject to test.
SYMBOL
AC Performance
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Voltage Output Slew Rate
Voltage Output Settling Time
Digital Feedthrough
Reference Input
R
IN
REF Input Resistance
REF
REF Input Range
Digital I/O
V
IH
Digital Input High Voltage
G
0.5
1.0
14
0.3
V/μs
μs
nVs
(Notes 2, 3) to ±0.5LSB
G
7.5
0
12.5
18
V
CC
k
(Notes 5, 6)
G
V
V
CC
= 5V
V
CC
= 3V
V
CC
= 5V
V
CC
= 3V
V
IN
= GND to V
CC
(Note 6)
G
G
2.4
2.0
V
V
V
V
V
IL
Digital Input Low Voltage
G
G
0.8
0.6
±10
10
I
LEAK
C
IN
Switching (V
CC
= 4.5V to 5.5V)
t
1
D
IN
Valid to CLK Setup
t
2
D
IN
Valid to CLK Hold
t
3
CLK High Time
t
4
CLK Low Time
t
5
CS/LD Pulse Width
t
6
LSB CLK to CS/LD
t
7
CS/LD Low to CLK
t
8
CLK Low to CS/LD Low
Switching (V
CC
= 2.7V to 5.5V)
t
1
D
IN
Valid to CLK Setup
t
2
D
IN
Valid to CLK Hold
t
3
CLK High Time
t
4
CLK Low Time
t
5
CS/LD Pulse Width
t
6
LSB CLK to CS/LD
t
7
CS/LD Low to CLK
t
8
CLK Low to CS/LD Low
The
G
denotes specifications which apply over the full operating
temperature range.
Note 1:
Nonlinearity is defined from code 20 to code 4095 (full scale).
See Applications Information.
Note 2:
Load is 5k in parallel with 100pF.
Note 3:
DAC switched between all 1s and the code corresponding to V
OS
for the part.
Digital Input Leakage
Digital Input Capacitance
G
μA
pF
G
G
40
0
40
40
50
40
20
20
ns
ns
ns
ns
ns
ns
ns
ns
G
(Note 6)
(Note 6)
(Note 6)
(Note 6)
(Note 6)
(Note 6)
G
G
G
G
G
G
G
60
0
60
60
80
60
30
30
ns
ns
ns
ns
ns
ns
ns
ns
G
(Note 6)
(Note 6)
(Note 6)
(Note 6)
(Note 6)
(Note 6)
G
G
G
G
G
G
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