參數(shù)資料
型號(hào): LTC1446L
廠商: Linear Technology Corporation
英文描述: Dual 12-Bit Rail-to-Rail Micropower DACs in SO-(雙路12位滿幅度微功耗數(shù)模轉(zhuǎn)換器(SO-8封裝,工作于2.7V-5.5V))
中文描述: 雙12位軌至軌微數(shù)模轉(zhuǎn)換器采用SO -(雙路12位滿幅度微功耗數(shù)模轉(zhuǎn)換器(以SO - 8封裝,工作于2.7至5.5V))
文件頁(yè)數(shù): 3/12頁(yè)
文件大?。?/td> 167K
代理商: LTC1446L
3
LTC1446/LTC1446L
The
G
denotes the specifications which apply over the full operating temperature range. V
CC
= 4.5V to 5.5V (LTC1446), 2.7V to 5.5V
(LTC1446L), V
OUT A
and V
OUT B
unloaded, T
A
= T
MIN
to T
MAX,
unless otherwise noted.
ELECTRICAL CHARACTERISTICS
The
G
denotes the specifications which apply over the full operating temperature range.V
CC
= 5V (LTC1446), V
CC
= 3V (LTC1446L),
T
A
= T
MIN
to T
MAX,
unless otherwise noted.
SYMBOL
Op Amp DC Performance
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Short-Circuit Current Low
Short-Circuit Current High
Output Impedance to GND
V
OUT
Shorted to GND
V
OUT
Shorted to V
CC
Input Code = 0
G
55
70
40
120
120
160
mA
mA
G
G
AC Performance
Voltage Output Slew Rate
Voltage Output Settling Time
(Note 3)
(Notes 3, 4) to
±
0.5LSB
G
0.5
1
V/
μ
s
μ
s
14
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
Nonlinearity is defined from the first code that is greater than or
equal to the maximum offset specification to code 4095 (full scale).
Note 3:
Load is 5k
in parallel with 100pF.
Note 4:
DAC switched between all 1s and the code corresponding to V
OS
for the part.
Note 5:
Digital inputs at 0V or V
CC
.
LTC1446
TYP
LTC1446L
TYP
SYMBOL
Digital I/O
V
IH
V
IL
V
OH
V
OL
I
LEAK
C
IN
Switching
t
1
t
2
t
3
t
4
t
5
t
6
t
7
t
8
t
9
PARAMETER
CONDITIONS
MIN
MAX
MIN
MAX
UNITS
Digital Input High Voltage
Digital Input Low Voltage
Digital Output High Voltage
Digital Output Low Voltage
Digital Input Leakage
Digital Input Capacitance
G
2.4
2
V
V
V
V
G
0.8
0.6
I
OUT
= –1mA
I
OUT
= 1mA
V
IN
= GND to V
CC
Guaranteed by Design
G
V
CC
– 1.0
V
CC
– 0.7
G
0.4
±
10
10
0.4
±
10
10
G
μ
A
pF
G
D
IN
Valid to CLK Setup
D
IN
Valid to CLK Hold
CLK High Time
CLK Low Time
CS/LD Pulse Width
LSB CLK to CS/LD
CS/LD Low to CLK
D
OUT
Output Delay
CLK Low to CS/LD Low
G
40
0
40
40
50
40
20
60
0
60
60
80
60
30
ns
ns
ns
ns
ns
ns
ns
ns
ns
G
G
G
G
G
G
C
LOAD
= 15pF
G
150
220
G
20
30
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