LTC1064-3CN データシートの表示（PDF） - Linear Technology
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LTC1064-3CN Datasheet PDF : 12 Pages
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LTC1064-3
TYPICAL APPLICATIO S
1
NC
OUT C 14
POWER SOURCE
V+
V–
2
13
VIN
VIN
NC
3
LTC1064-3
AGND
V–
12
4 V+
0.1µF 5
AGND
11
fCLK
10
75/150
0.1µF
10k
V+/V–
0.1µF
6
NC
9
10k
VOUT
–
7 INV A
8
NC
0.1µF
+
VOUT
RECOMMENDED OP AMPS:
LT1022, LT318, LT1056
0.1µF
1064-3 F01
Figure 1. Buffering the Filter Output. The Buffer Op Amp
Should Not Share the LTC1064-3 Power Lines
V+
1N5817
VIN
0.1µF
1
NC
14
OUT C
2
VIN
13
NC
3
LTC1064-3
AGND
V–
12
4 V+
5
AGND
11
fCLK
10
75/150
6
NC
7
INV A
9
VOUT
8
NC
1N5817
V–
0.1µF
VOUT
1064-3 F02
Figure 2. Using Schottky Diodes to Protect
the IC from Power Supply Reversal
V+= 15V
1
NC
14
OUT C
2
13
VIN
VIN
NC
3
LTC1064-3
AGND
V–
12
0.1µF
5k
4 V+
5
AGND
11
fCLK
10
75/150
0.1µF
6
V+/2
NC
5k
7
INV A
9
VOUT
8
NC
fCLK
0V TO 10V
VOUT
1064-3 F03
Figure 3. Single Supply Operation. If Fast Power Up
or Down Transients are Expected, Use a 1N5817
Schottky Diode Between Pin 4 and Pin 5
VIN
V+
5k
0.1µF
5k
1
NC
14
OUT C
2
VIN
13
NC
3
LTC1064-3
AGND
V–
12
4 V+
5
AGND
11
fCLK
10
75/150
6
NC
7
INV A
9
VOUT
8
NC
V+
RATIO
2.2k
5k 1µF
T2L
LEVEL
VOUT
1064-3 F04
Figure 4. Level Shifting the Input T2L Clock
for Single Supply Operation ≥6V
8
VIN
V+
0.1µF
1
NC
14
OUT C
2
VIN
13
NC
3
LTC1064-3
AGND
V–
12
4 V+
5
AGND
11
fCLK
10
75/150
6
NC
7
INV A
9
VOUT
8
NC
V–
0.1µF
V+/GND/V–
4.99k 4.99k
430pF
10k
200pF
–
LT1056
+
50Ω
0.027µF
VOUT
1064-3 F05
Figure 5. Adding an Output Buffer-Filter to Eliminate Any Clock
Feedthrough. Passband ±0.1dB to 50kHz, –3dB at 94kHz
10643fa
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