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參數資料
| 型號： | ICL7121 |
| 廠商： | Intersil Corporation |
| 元件分類： | 16位微控制器 |
| 英文描述： | 16-Bit Multiplying Microprocessor-Compatible D/A Converter |
| 中文描述： | 16位乘法微處理器兼容D / A轉換 |
| 文件頁數： | 5/10頁 |
| 文件大?。?/td> | 607K |
| 代理商： | ICL7121 |
5
Unadjusted Gain Error
T
A
= 25
o
C
J
-
±
0.004
±
0.012
%FSR
K
-
±
0.003
±
0.009
%FSR
L
-
±
0.002
±
0.006
%FSR
Operating Temperature Range
J
-
±
0.002
+0.04
%FSR
K, L
-
±
0.01
±
0.02
%FSR
Unadjusted Gain Error
Temperature Coefficient
(Note 4)
J
-
±
1.0
±
5.2
ppm/
o
C
K, L
-
±
0.5
±
2.0
ppm/
o
C
Unadjusted Output Offset
DAC Register Outputs All LOW (Note 6)
-
±
4
±
15
mV
Output Offset Temperature Drift
Same Conditions as Above, (Note 4)
-
-
±
5
μ
V/
o
C
AC ACCURACY
Power Supply Rejection
V+ = 5V
±
10%, T
A
= 25
o
C
-
±
30
±
100
ppm/C
Operating Temperature Range
-
±
50
±
150
ppm/C
Output Current Settling Time
To 1/2 LSB (Note 4)
-
1.8
3
μ
s
REFERENCE INPUT
Input Resistance
I
OUT
at Ground
3
4.2
6
k
ANALOG OUTPUT
Output Capacitance
(I
OUT
Terminal)
DAC Register Outputs All Low
-
150
-
pF
DAC Register Outputs All High
-
300
-
pF
DIGITAL INPUTS
LOW State Threshold
Operating Temperature Range
-
-
0.8
V
HIGH State Threshold
2.4
-
-
V
Input Current
Inputs Between DGND to V+
-
±
0.001
±
1
μ
A
Input Capacitance
(Note 4)
-
15
-
pF
POWER SUPPLY
Supply Voltage Rnage *
Functional Operation (Note 5)
4.5
-
5.5
V
Supply Current
(Excluding Ladder Network)
T
A
= 25
o
C, Digital Inputs High or LOW
-
0.6
1.5
mA
Operating Temperature Range Digital Inputs
HIGH or LOW
-
1.0
2.5
mA
NOTES:
3. Military temperature range parts are also tested to stated limits at -55
o
C and 125
o
C.
4. Guaranteed by characterization but not tested on a production basis.
5. Guaranteed by PSRR test.
6. Refer to FIgure 1. Measured at output amplifier A1 (A1 having zero offset). V
REF
= +5V. Adjustable to zero with external potentiometer.
Switching Specifications
V+ = 5V, T
A
= 25
o
C, See Timing Diagram
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
CHIP SELECT-WRITE Set-Up Time
t
CWs
Note 4
0
-
-
ns
CHIP SELECT-WRITE Hold Time
t
CWh
Note 4
0
-
-
ns
WRITE Pulse Width Low
t
WR
Note 4
200
-
-
ns
Data-WRITE Set-Up Time
t
DWs
Note 4
200
-
-
ns
Data-WRITE Hold Time
t
DWh
Note 4
0
-
-
ns
Electrical Specifications
V+ = +5V, V
REF
= +5V, T
A
= 25
o
C, AGND = DGND, I
OUT
at Ground Potential,
Unless Otherwise Specified
(Continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
ICL7121
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