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參數(shù)資料
| 型號： | MAX502MJG |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | DAC |
| 英文描述： | PARALLEL, WORD INPUT LOADING, 12-BIT DAC, CDIP24 |
| 封裝： | CERDIP-24 |
| 文件頁數(shù)： | 4/13頁 |
| 文件大?。?/td> | 877K |
| 代理商： | MAX502MJG |
MAX31855
Cold-Junction Compensated
Thermocouple-to-Digital Converter
4
Maxim Integrated
Note 2:
All voltages are referenced to GND. Currents entering the IC are specified positive, and currents exiting the IC are negative.
Note 3:
Guaranteed by design; not production tested.
Note 4:
Not including cold-junction temperature error or thermocouple nonlinearity.
Note 5:
Specification is 100% tested at T
A
= +25
N
C. Specification limits over temperature (T
A
= T
MIN
to T
MAX
) are guaranteed by
design and characterization; not production tested.
Note 6:
Because the thermocouple temperature conversions begin at V
POR
, depending on V
CC
slew rates, the first thermocouple
temperature conversion may not produce an accurate result. Therefore, the t
CONV_PU
specification is required after V
CC
is
greater than V
CCMIN
to guarantee a valid thermocouple temperature conversion result.
Note 7:
For all pins except T+ and T- (see the Thermocouple Input Bias Current parameter in the
DC Electrical Characteristics
table).
SERIAL-INTERFACE TIMING CHARACTERISTICS
(See
Figure 1
and
Figure 2
.)
THERMAL CHARACTERISTICS (continued)
(3.0V
P
V
CC
P
3.6V, T
A
= -40
N
C to +125
N
C, unless otherwise noted.) (Note 4)
PARAMETER
SYMBOL
I
LEAK
C
IN
f
SCL
t
CH
t
CL
CONDITIONS
MIN
-1
TYP
MAX
+1
UNITS
μA
pF
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
Input Leakage Current
Input Capacitance
Serial-Clock Frequency
SCK Pulse-High Width
SCK Pulse-Low Width
SCK Rise and Fall Time
CS
Fall to SCK Rise
SCK to
CS
Hold
CS
Fall to Output Enable
CS
Rise to Output Disable
SCK Fall to Output Data Valid
CS
Inactive Time
(Note 7)
8
5
100
100
200
t
CSS
100
100
t
DV
t
TR
t
DO
100
40
40
(Note 3)
200
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Thermocouple Temperature Data
Resolution
0.25
N
C
Internal Cold-Junction
Temperature Error
T
A
= -20
N
C to +85
N
C (Note 3)
T
A
= -40
N
C to +125
N
C (Note 3)
-2
-3
+2
+3
N
C
Cold-Junction Temperature Data
Resolution
T
A
= -40
N
C to +125
N
C
0.0625
N
C
Temperature Conversion Time
(Thermocouple, Cold Junction,
Fault Detection)
t
CONV
(Note 5)
70
100
ms
Thermocouple Conversion
Power-Up Time
t
CONV_PU
(Note 6)
200
ms
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