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參數(shù)資料
| 型號： | NTE890 |
| 廠商： | NTE Electronics, Inc. |
| 英文描述： | Integrated Circuit Voltage to Frequency Converter |
| 中文描述： | 集成電路電壓頻率轉(zhuǎn)換器 |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 22K |
| 代理商： | NTE890 |
NTE890
Integrated Circuit
Voltage to Frequency Converter
Description:
The NTE890 is an integrated circuit in an 8–Lead DIP type package and provides a simple method
of A/D conversion. It has all the inherent advantages of the voltage–to–frequency conversion tech-
nique. The output is a series of constant duration pulses. The frequency of the pulses is proportional
to the applied input voltage. This converter is designed for use in a wide range of data conversion
and remote sensing applications.
Absolute Maximum Ratings:
(T
A
= +25
°
C unless otherwise specified)
Supply Voltage, V+
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Sink Current, I
SINK
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation, P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Voltage, V
i
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8V to 22V
20mA
500mW
–0.2V to V+(V)
–20
°
to +75
°
C
–40
°
to +125
°
C
Electrical Characteristics:
(V+ = +15V, T
A
= +25
°
C unless otherwise specified)
Parameter
Test Conditions
Min
Typ
Max
Unit
Supply Current
8V < V+ < 15V
2.0
3.5
6.0
mA
15V < V+ < 22V
V
IN
= 10V, R
S
= 14k
V
IN
= 10V
V
IN
= 1V, 8V < V+ < 18V
2.0
4.5
7.5
mA
Conversion Accuracy Scale Factor
0.9
1.0
±
100
0.2
1.1
kHz/V
ppM/
°
C
%/V
Drift with Temperature
–
–
Drift with V+
–
1.0
Input Comparator Offset Voltage
–
5
10
±
100
–300
mV
Offset Current
–
±
50
–100
nA
Input Bias Current
–
nA
Common Mode Range
Note 1
0 to V+ –3
0 to V+ –2
–
V
One–Shot Threshold Voltage
Pin5
0.63
0.66
0.70
x V+
Input Bias Current
Pin5
–
–100
–500
nA
Reset V
SAT
Pin5, I = 2.2mA
–
0.15
0.50
V
Note 1 Input Common Mode Range includes GND.
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