MAX268
PRODUCTIONPin-Programmable Universal and Bandpass Filters
- Part Models
- 3
- 1ku List Price
- Starting From $15.81
Part Details
- 32-Step Center Frequency Control
- 128-Step Q Control
- Independent Q and f0 Programming
- Guaranteed Clock to f0 Ratio—1% (A grade)
- 75kHz f0 Range (MAX264/268)
- Single +5V and ±5V Operation
The MAX263/264 and MAX267/268 CMOS switched-capacitor active filters are designed for precision filtering applications. Center frequency, Q, and operating mode are all selected via pin-strapped inputs. The MAX263/264 uses no external components for a variety of bandpass, lowpass, highpass, notch and allpass filters. The MAX267/268 is dedicated to bandpass applications and includes an uncommitted op-amp. Two second-order filter sections are included in both devices.
An input clock and a 5-bit programming input precisely set the filter center/corner frequency. Q is also programmed from 0.5 to 64. Separate clock inputs for each filter half operate either an external clock or a crystal.
The MAX263 and 267 operate with center frequencies up to 57kHz while the MAX264 and 268 extend the f0 range to 140kHz by employing lower fCLK/f0 ratios. The MAX263/264 is supplied in 28 pin wide DIP and small outline packages while the MAX267/268 is supplied in 24 pin narrow DIP and wide SO packages. All devices are available in commercial, extended, and military temperature ranges.
Documentation
Data Sheet 1
Reliability Data 1
Technical Articles 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX268AENG+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MAX268BCNG+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MAX268BENG+ | Plastic Dual-In-Line, Narrow (0.3in) |
This is the most up-to-date revision of the Data Sheet.