LTC1064-4CS Linear Technology, LTC1064-4CS Datasheet - Page 8

• Manufacturer Part Number: LTC1064-4CS
• Manufacturer: Linear Technology

Specifications of LTC1064-4CS

• Architecture: Switched Capacitor
• Order Filter (max): 8th
• Single Supply Voltage (typ): 5/9/12/15V
• Dual Supply Voltage (typ): ±3/±5V
• Power Supply Requirement: Single/Dual
• Single Supply Voltage (min): 4.74V
• Single Supply Voltage (max): 16V
• Dual Supply Voltage (min): ±2.37V
• Dual Supply Voltage (max): ±8V
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Filter Type: Low Pass Filter
• Lead Free Status / RoHS Status: Not Compliant

LTC1064-4
TYPICAL APPLICATIO S
8
1N5817
1N5817
0.1µF
V
V
+
+
V
Figure 1. Using Schottky Diodes to Protect
the IC from Power Supply Spikes
Figure 3. Level Shifting the Input T
for Single Supply Operation ≥6V.
IN
V
IN
0.1µF
5k
5k
1
2
3
4
5
6
7
1
2
3
4
5
6
7
INV A
INV C
V
AGND
V
AGND
COMP1*
0.1µF
IN
+
INV C
V
AGND
V
AGND
COMP1*
INV A
V
IN
+
LTC1064-4
V
IN
LTC1064-4
+
Figure 5. Adding an Output Buffer-Filter to Eliminate Any Clock Feedthrough.
Passband Error of Output Buffer is ±0.1dB to 50kHz, –3dB at 94kHz.
COMP2*
COMP2*
50/100
R(h, I)
50/100
V
R(h, I)
f
1064-4 F01
OUT
V
CLK
NC
f
V
OUT
CLK
NC
V
–
–
14
13
12
11
10
9
8
U
14
13
12
11
10
9
8
1
2
3
4
5
6
7
INV C
V
AGND
V
AGND
COMP1*
INV A
V
IN
+
+
/V
LTC1064-4
–
2
L Clock
1N5817
5k
COMP2*
V
+
50/100
R(h, I)
2.2k
V
V
f
OUT
CLK
OUT
V
NC
V
1µF
OUT
–
14
13
12
11
10
9
8
T
LEVEL
0.1µF
V
V
2
1064-4 F03
+
L
–
/V
4.99k
–
V
V
–
IN
0.1µF
V
RECOMMENDED OP AMPS:
LT1022, LT318, LT1056
430pF
4.99k
+
= 15V
Figure 2. Single Supply Operation. If Fast Power Up or Down
Transients are Expected, Use a 1N5817 Schottky Diode
Between Pin 4 and Pin 5.
0.1µF
Figure 4. Buffering the Filter Output. The Buffer Op Amp
Should Not Share the LTC1064-4 Power Lines.
1
2
3
4
5
6
7
–
+
0.1µF
0.1µF
INV A
INV C
V
AGND
V
AGND
COMP1*
LT1056
IN
+
200pF
LTC1064-4
10k
5k
COMP2*
50/100
R(h, I)
5k
V
f
OUT
CLK
NC
V
–
14
13
12
11
10
9
8
V
50Ω
IN
1N5817
V
+
/V
V
+
–
/2
10k
1064-4 F05
0.027µF
V
OUT
1
2
3
4
5
6
7
0.1µF
INV C
V
AGND
V
AGND
COMP1*
INV A
IN
+
LTC1064-4
10k
–
+
4
COMP2*
POWER SOURCE
V
50/100
R(h, I)
+
1064-4 F02
V
0.1µF
f
OUT
CLK
NC
0.1µF
V
–
8
14
13
12
11
10
9
8
0V TO 10V
V
–
V
V
10644fb
1064-4 F04
OUT
OUT