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參數(shù)資料
| 型號： | ICL8052A |
| 廠商： | Intersil Corporation |
| 英文描述： | Precision 4 1/2 Digit, A/D Converter |
| 中文描述： | 精密4 1 / 2位，A / D轉(zhuǎn)換 |
| 文件頁數(shù)： | 20/23頁 |
| 文件大?。?/td> | 582K |
| 代理商： | ICL8052A |
20
ICL71C03 with ICL8052A/8068A Integrating A/D Converter Equations
The ICL71C03 does not have an internal crystal or RC
oscillator. It has a clock input only.
Integration Period
CLOCK
CLOCK
Integration Clock Period
t
CLOCK
= 1/f
CLOCK
60/50Hz Rejection Criterion
t
INT
/t
60Hz
or t
INT
/t
50Hz
= Integer
Optimum Integration Current
I
INT
= 20
μ
A
Full Scale Analog Input Voltage
V
INFS
(Typ) = 200mV to 2.0V = 2V
REF
Integrate Resistor
Integrate Capacitor
Integrator Output Voltage
t
INT
V
INT
(Typ) = 9V
Output Count
NOTE: The 4
1
/
2
digit mode’s LSD will be output as a zero in the 3
1
/
2
digit mode.
Output Type:
4 Nibbles BCD with Polarity and Over-range.
Power Supply:
±
15V, +5V
V++ = +15V
V- = -15V
V+ = +5V
V
REF
1.75V
If V
REF
not used, float output pin.
Auto Zero Capacitor Values
0.01
μ
F < C
AZ
< 1
μ
F
Reference Capacitor Value
C
REF
= (Buffer Gain) x C
AZ
t
INT
--------------------
4-1/2 Digit
(
)
=
t
INT
--------------------
3-1/2 Digit
(
)
=
R
INT
BufferGain
------------------------------------------------------------
(
)
V
×
INT
=
C
INT
t
-------------------------------
(
)
I
INT
(
)
=
V
INT
(
-------------------------------
)
I
(
)
=
Count
10 000
V
REF
V
REF
--------------
×
(4-1/2 Digit)
=
Count
1 000
--------------
×
(3-1/2 Digit)
=
FIGURE 20. INTEGRATOR OUTPUT
AUTO ZERO
(COUNTS)
30,001 - 10,001
3,001 - 1,001
INTEGRATE
(FIXED COUNT)
10,000
1,000
DEINTEGRATE
(COUNTS)
1 - 20,001
1 - 2,001
(4
1
/
2
DIGIT)
(3
1
/
2
DIGIT)
TOTAL CONVERSION TIME (t
CONV
)
(IN CONTINUOUS MODE)
t
CONV
= 40,002 * t
CLOCK
(4
1
/
2
DIGIT MODE)
t
CONV
= 4,002 * t
CLOCK
(3
1
/
2
DIGIT MODE)
ICL8052A/ICL71C03, ICL8068A/ICL71C03
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ICL8068A | Precision 4 1/2 Digit, A/D Converter |
| ICL8068 | Precision 4 1/2 Digit, A/D Converter |
| ICL8068ACDD | 14-Bit/16-Bit, Microprocessor- Compatible, 2-Chip, A/D Converter |
| ICL8068CDD | 14-Bit/16-Bit, Microprocessor- Compatible, 2-Chip, A/D Converter |
| ICL71C03 | Precision 4 1/2 Digit, A/D Converter(精密4 1/2 位A/D轉(zhuǎn)換器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICL8052ACDD | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ICL8052ACPD | 制造商:Harris Corporation 功能描述: |
| ICL8052CDD | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Data Acquisition |
| ICL8052CDL | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Converter IC |
| ICL8052CJD | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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