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參數(shù)資料
| 型號： | LTC8143 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Improved Industry Standard Serial 12-Bit Multiplying DACs |
| 中文描述： | 改進的工業(yè)標準串行12位乘法數(shù)模轉(zhuǎn)換器 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大?。?/td> | 217K |
| 代理商： | LTC8143 |
4
LTC7543/LTC8143
V
DD
= 5V, V
REF
= 10V, V
OUT1
= V
OUT2
= AGND = DGND = 0V, T
A
= T
MIN
to T
MAX
, unless otherwise specified.
ELECTRICAL CHARACTERISTICS –
LTC7543/LTC8143
The
G
denotes specifications which apply over the full operating
temperature range.
Note 1:
±
0.5LSB =
±
0.012% of full scale.
Note 2:
Using internal feedback resistor.
Note 3:
Guaranteed by design, not subject to test.
Note 4:
I
OUT1
with DAC register loaded with all 0s or I
OUT2
with DAC
register loaded with all 1s.
Note 5:
Typical temperature coefficient is 100ppm/
°
C.
Note 6:
OUT 1 load = 100
in parallel with 13pF.
Note 7:
To 0.01% for a full-scale change, measured from falling edge of
LD1 or LD2.
Note 8:
V
REF
= 0V. DAC register contents changed from all 0s to all 1s or
from all 1s to all 0s.
Note 9:
V
REF
= 6V
RMS
at 1kHz. DAC register loaded with all 1s.
Note 10:
Calculation from e
n
=
√
4KTRB where: K = Boltzmann constant
(J/K
°
); R = resistance (
); T = resistor temperature (
°
K); B = bandwidth
(Hz).
Note 11:
Minimum high time for STB1, STB2, STB4. Minimum low time
for STB3.
Note 12.
Minimum low time for STB1, STB2, STB4. Minimum high time
for STB3.
LTC7543/LTC8143
ALL GRADES
MIN
TYP
SYMBOL
Timing Characteristics (Note 3)
t
DS1
Serial Input to Strobe Setup Time
t
DS2
t
DS3
t
DS4
t
DH1
Serial Input to Strobe Hold Time
t
DH2
t
DH3
t
DH4
t
SRI
Serial Input Data Pulse Width
t
STB1
, t
STB2
,
Strobe Pulse Width
t
STB3
, t
STB4
t
STB1
, t
STB2
,
Strobe Pulse Width
t
STB3
, t
STB4
t
LD1
, t
LD2
Load Pulse Width
t
ASB
LSB Strobed into Input Register
to Load DAC Register Time
t
CLR
Clear Pulse Width
SRO Timing Characteristics (LTC8143 Only)
t
PD
STB2, STB3, STB4 Strobe to SRO
Propagation Delay
t
PD1
STB1 to SRO Propagation Delay
Power Supply
V
DD
Supply Voltage
I
DD
Supply Current
PARAMETER
CONDITIONS
MAX
UNITS
STB1 Used as the Strobe
STB2 Used as the Strobe
STB3 Used as the Strobe
STB4 Used as the Strobe
STB1 Used as the Strobe
STB2 Used as the Strobe
STB3 Used as the Strobe
STB4 Used as the Strobe
G
50
20
0
0
30
50
80
80
80
80
5
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
G
–5
–30
–30
10
25
55
55
G
G
G
G
G
G
G
(Note 11)
G
(Note 12)
G
80
ns
G
140
0
ns
ns
G
G
80
ns
C
L
= 50pF
G
220
120
ns
C
L
= 50pF
G
150
80
ns
G
4.75
5
5.25
0.1
2
V
Digital Inputs = 0V or V
DD
Digital Inputs = V
IH
or V
IL
G
G
mA
mA
(t
STB
= 80ns)
(t
STB
= 80ns)
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