LTC1066-1CS View Datasheet(PDF) - Linear Technology

Part Name

Description

Manufacturer

LTC1066-1CS

14-Bit DC Accurate Clock-Tunable, 8th Order Elliptic or Linear Phase Lowpass Filter

Linear Technology 

LTC1066-1

TYPICAL APPLICATIONS

Dual Supply Operation

DC Accurate, 10Hz to 100kHz, Clock-Tunable, 8th Order Elliptic Lowpass Filter

fCLK/ fC = 50:1

100k

VIN 20Ω

–7.5V

0.1µF

0.1µF

100k

7.5V

0.1µF

7.5V

fCLK

33µF

1 OUT A

V+ 18

2 –IN A

OUT B 17

3 +IN A

+IN B 16

4 V–

LTC1066-1 GND 15

5 V+

FILTERIN 14

1N4148* 6 CONNECT 1

COMP 2 13

200Ω

7 FILTEROUT

8 50/100

9 CLK

CONNECT 2 12

COMP 1 11

V– 10

VOUT

20Ω

7.5V

0.1µF

30k

15pF

–7.5V

0.1µF 1N4148*

MAXIMUM OUTPUT VOLTAGE OFFSET = ±5.5mV, DC LINEARITY = ±0.0063%, TA = 25°C.

THE PINS 6 TO 12 CONNECTION SHOULD BE UNDER THE IC AND SHIELDED BY AN

ANALOG SYSTEM GROUND PLANE.

RC COMPENSATION BETWEEN PINS 11 AND 13 REQUIRED ONLY FOR fCUTOFF ≥ 60kHz.

THE 33µF CAPACITOR IS A NONPOLARIZED, ALUMINUM ELECTROLYTIC, ±20%, 16V

(NICHICON UUPIC 330MCRIGS OR NIC NACEN 33M16V 6.3 × 5.5 OR EQUIVALENT).

* PROTECTION DIODES, 1N4148 ARE OPTIONAL. SEE PIN DESCRIPTIONS.

1066-1 TA03

Single 5V Supply Operation

DC Accurate, 10Hz to 36kHz, Clock-Tunable, 8th Order Elliptic Lowpass Filter

fCLK/ fC = 50:1

100k

0.1µF

33µF

1 OUT A

V+ 18

5V

100k

VIN

5V

0.1µF

2 –IN A

OUT B 17

3 +IN A

+IN B 16

4 V–

LTC1066-1 GND 15

5 V+

FILTERIN 14

6 CONNECT 1

COMP 2 13

VOUT

30k

0.1µF 10k

1µF

10k

5V

200Ω

fCLK

7 FILTEROUT

8 50/100

9 CLK

CONNECT 2 12

COMP 1 11

V– 10

15pF

INPUT LINEAR RANGE = 1.4V to 3.6V. DC LINEARITY = ±0.0063%.

THE PINS 6 TO 12 CONNECTION SHOULD BE UNDER THE IC AND SHIELDED BY AN

ANALOG SYSTEM GROUND PLANE.

RC COMPENSATION BETWEEN PINS 11 AND 13 REQUIRED ONLY FOR fCUTOFF ≥ 24kHz.

THE 33µF CAPACITOR IS A NONPOLARIZED, ALUMINUM ELECTROLYTIC, ±20%, 16V

(NICHICON UUPIC 330MCRIGS OR NIC NACEN 33M16V 6.3 × 5.5)

1066-1 TA04

13

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