3130 データシートの表示（PDF） - Intersil
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3130 Datasheet PDF : 17 Pages
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CA3130, CA3130A
+10.010V
LSB
9
8
6
3
14
7
10 11
2
CD4007A
“SWITCHES”
9
13
1
7
12
8
5
4
806K 402K 200K
1% 1% 1%
10V LOGIC INPUTS
6
5
4
6
3
10
MSB
3
2
1
6
3
10
CD4007A
“SWITCHES”
CD4007A
“SWITCHES”
13
1
8
5
100K
1%
12
806K
1%
806K 806K
1% 1%
13
1
12
8 (2) 5 (4)
(8)
806K 806K 806K
1% 1% 1%
REQUIRED
BIT RATIO-MATCH
1
2
3
4
5
6-9
STANDARD
±0.1%
±0.2%
±0.4%
±0.8%
±1% ABS
NOTE: All resistances are in ohms.
806K
1%
806K 750K
1%
1%
VOLTAGE
+15V REGULATOR
62
1
2
CA3085
+10.010V
8
OUTPUT
6
3
6
7
+ 2µF
4
- 25V
0.001µF
22.1k
1%
LOAD
REGULATED
1K VOLTAGE
ADJ
3.83k
1%
PARALLELED
RESISTORS
10K
+15V
7
+
CA3130
-
4
5
1
8
3
VOLTAGE
FOLLOWER
2
100K
OFFSET
NULL 2K
56pF
0.1µF
FIGURE 10. 9-BIT DAC USING CMOS DIGITAL SWITCHES AND CA3130
R2
2kΩ
+15V
0.01
R1
µF
2-
7
4kΩ
CA3130
6
3+
1
8
20pF
4
5
1N914
R3
100kΩ
OFFSET
ADJUST
5.1kΩ
PEAK
ADJUST
2kΩ
Gain
=
R-----2-
R1
=
X
=
----------------R----3-----------------
R1 + R2 + R3
R3
=
R1
-X---1---+------XX----2--
For
X
=
0.5:
2-4---Kk----ΩΩ---
=
-R----2-
R1
R3= 4kΩ 0--0--.--.7-5--5-- = 6kΩ
20VP-P Input: BW(-3dB) = 230kHz, DC Output (Avg) = 3.2V
1VP-P Input: BW(-3dB) = 130kHz, DC Output (Avg) = 160mV
0V
0V
Top Trace: Output Signal; 2V/Div.
Bottom Trace: Input Signal; 10V/Div.
Time base on both traces: 0.2ms/Div.
FIGURE 11. SINGLE SUPPLY, ABSOLUTE VALUE, IDEAL FULL-WAVE RECTIFIER WITH ASSOCIATED WAVEFORMS
10
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