參數(shù)資料
型號(hào)： LTC8043
廠商： Linear Technology Corporation
英文描述： H8SX Series, 1582 Group, FP-120B; Vcc= 4.5 to 5.5 volts, Temp= -20 to 85 C; Package: PLQP0120LA-A
中文描述： 串行12位乘法DAC采用SO - 8
文件頁(yè)數(shù)： 3/4頁(yè)
文件大?。?/td> 175K
代理商： LTC8043
3
LTC8043
ELECTRICAL CHARACTERISTICS
V
DD
= 5V, V
REF
= 10V, V
IOUT
= GND
= 0V, T
A
= T
MIN
to T
MAX
, unless otherwise specified.
Note 7:
To 0.01% for a full-scale change, measured from
falling edge of LD.
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:
10Hz to 100kHz between R
FB
and I
OUT
. Calculation from e
n
=
√
4KTRB where: K = Boltzmann constant (J/K
°
); R = resistance (
);
T = resistor temperature (
°
K); B = bandwidth (Hz).
BLOCK DIAGRA
M
W
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
OUT
with DAC register loaded with all 0s.
Note 5:
Typical temperature coefficient is 100ppm/
°
C.
Note 6:
I
OUT
load = 100
in parallel with 13pF.
40k
10k
40k
20k
40k
20k
40k
20k
40k
40k
40k
DECODER
BIT 1
(MSB)
BIT 2
BIT 3
BIT 4
BIT 12
(LSB)
CLK
IN
LOAD
V
DD
V
REF
R
FB
I
OUT
SRI
6
GND
4
3
2
8043 BD
DAC REGISTER
INPUT 12-BIT SHIFT REGISTER
5
7
8
1
LD
CLK
ALL GRADES
TYP
SYMBOL PARAMETER
Digital Inputs
V
IH
Digital Input High Voltage
V
IL
Digital Input Low Voltage
I
IN
Digital Input Current
C
IN
Digital Input Capacitance
Timing Characteristics (Note 3)
t
DS
Serial Input to Clock Setup Time
t
DH
Serial Input to Clock Hold Time
t
SRI
Serial Input Data Pulse Width
t
CH
Clock Pulse Width High
t
CL
Clock Pulse Width Low
t
LD
Load Pulse Width
t
ASB
LSB Clocked into Input Register
to Load DAC Register Time
Power Supply
V
DD
Supply Voltage
I
DD
Supply Current
CONDITIONS
MIN
MAX
UNITS
G
2.4
V
V
G
0.8
±
1
8
V
IN
= 0V to V
DD
V
IN
= 0V,(Note 3)
G
0.001
μ
A
pF
G
G
30
60
80
80
80
140
0
–5
25
ns
ns
ns
ns
ns
ns
ns
G
G
G
G
G
G
G
4.75
5
5.25
100
500
V
Digital Inputs = 0V or V
DD
Digital Inputs = V
IH
or V
IN
G
G
μ
A
μ
A
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
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