DocumentationDatasheet
Application Note
- AN40 - Take the Mystery Out of the Switched Capacitor Filter
- AN56 - Better than Bessel Linear Phase Filters For Data Communications
Design Note
- DN147 - LTC1069-X: A New Family of 8th Order Monolithic Filters in an SO-8 Package
- DN16 - Switched-Capacitor Low Pass Filters for Anti-Aliasing Applications
- DN24 - Complex Data Acquisition System Uses Few Components
- DN37 - High Dynamic Range Bandpass Filters for Communications
Reliability Data
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Features
- 8th Order Filter in a 14-Pin Package
- No External Components
- 100:1 Clock to Center Ratio
- 150µVRMS Total Wideband Noise
- 0.03% THD or Better
- 50kHz Maximum Corner Frequency
- Operates from ±2.37V to ±8V Power Supplies
- Passband Ripple Guaranteed Over Full Military Temperature Range
Typical Application
Description
The LTC®1064-1 is an 8th order, clock sweepable elliptic (Cauer) lowpass switched capacitor filter. The passband ripple is typically ±0.15dB, and the stopband attenuation at 1.5 times the cutoff frequency is 68dB or more.
An external TTL or CMOS clock programs the value of the filter?s cutoff frequency. The clock to cutoff frequency ratio is 100:1.
No external components are needed for cutoff frequencies up to 20kHz. For cutoff frequencies over 20kHz two low value capacitors are required to maintain passband flatness. The LTC1064-1 features low wideband noise and low harmonic distortion even for input voltages up to 3VRMS. In fact the LTC1064-1 overall performance completes with equivalent multiple op amp RC active realizations.
The LTC1064-1 is available in a 14-pin DIP or 16-pin surface mounted SW package.
The LTC1064-1 is pin compatible with the LTC1064-2.
N-14,SW-16
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LTC1064-1ACN#PBF | PDIP | 14 | C | $25.40 | $20.60 |
| LTC1064-1CN#PBF | PDIP | 14 | C | $15.00 | $12.35 |
| LTC1064-1CSW#PBF | SO | 16 | C | $18.35 | $14.85 |
| LTC1064-1CSW#TRPBF | SO | 16 | C | $14.91 | |
| LTC1064-2CN#PBF | PDIP | 14 | C | $13.35 | $10.80 |
| LTC1064-2CSW#PBF | SO | 16 | C | $18.35 | $14.85 |
| LTC1064-2CSW#TRPBF | SO | 16 | C | $14.91 | |
| LTC1064-3CN#PBF | PDIP | 14 | C | $11.70 | $9.60 |
| LTC1064-3CSW#PBF | SO | 16 | C | $13.35 | $10.80 |
| LTC1064-3CSW#TRPBF | SO | 16 | C | $10.86 | |
| LTC1064-4CN#PBF | PDIP | 14 | C | $16.70 | $13.70 |
| LTC1064-4CSW#PBF | SO | 16 | C | $20.85 | $16.90 |
| LTC1064-4CSW#TRPBF | SO | 16 | C | $16.96 | |
| LTC1064-7CN#PBF | PDIP | 14 | C | $13.35 | $10.80 |
| LTC1064-7CSW#PBF | SO | 16 | C | $18.35 | $14.85 |
| LTC1064-7CSW#TRPBF | SO | 16 | C | $14.91 | |
| LTC1064CN#PBF | PDIP | 24 | C | $10.00 | $8.10 |
| LTC1064CSW#PBF | SO | 24 | C | $12.00 | $9.45 |
| LTC1064CSW#TRPBF | SO | 24 | C | $9.55 | |
| LTC1064-4MJ | CERDIP | 14 | M | $78.60 | |
| LTC1064-1ACN | PDIP | 14 | C | $50.80 | $41.20 |
| LTC1064-1CN | PDIP | 14 | C | $30.00 | $24.70 |
| LTC1064-1CSW | SO | 16 | C | $36.70 | $29.70 |
| LTC1064-1CSW#TR | SO | 16 | C | $29.82 | |
| LTC1064-2CN | PDIP | 14 | C | $26.70 | $21.60 |
| LTC1064-2CSW | SO | 16 | C | $36.70 | $29.70 |
| LTC1064-2CSW#TR | SO | 16 | C | $29.82 | |
| LTC1064-3CN | PDIP | 14 | C | $23.40 | $19.20 |
| LTC1064-3CSW | SO | 16 | C | $26.70 | $21.60 |
| LTC1064-3CSW#TR | SO | 16 | C | $21.72 | |
| LTC1064-4CN | PDIP | 14 | C | $33.40 | $27.40 |
| LTC1064-4CSW | SO | 16 | C | $41.70 | $33.80 |
| LTC1064-4CSW#TR | SO | 16 | C | $33.92 | |
| LTC1064-7CN | PDIP | 14 | C | $26.70 | $21.60 |
| LTC1064-7CSW | SO | 16 | C | $36.70 | $29.70 |
| LTC1064-7CSW#TR | SO | 16 | C | $29.82 | |
| LTC1064CN | PDIP | 24 | C | $20.00 | $16.20 |
| LTC1064CSW | SO | 24 | C | $24.00 | $18.90 |
| LTC1064CSW#TR | SO | 24 | C | $19.10 |
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.