MAX7401
PRODUCTION8th-Order, Lowpass, Bessel, Switched-Capacitor Filters
Smallest, Lowest-Power 8th-Order Bessel Filters
- Part Models
- 6
- 1ku List Price
- Starting From $3.89
Part Details
- 8th-Order, Lowpass Bessel Filters
- Low Noise and Distortion: -82dB THD + Noise
- Clock-Tunable Corner Frequency (1Hz to 5kHz)
- 100:1 Clock-to-Corner Ratio
- Single-Supply Operation
- +5V (MAX7401)
- +3V (MAX7405)
- Low Power
- 2mA (Operating Mode)
- 0.2µA (Shutdown Mode)
- Available in 8-Pin SO/DIP Packages
- Low Output Offset: ±5mV
The MAX7401/MAX7405 8th-order, lowpass, Bessel, switched-capacitor filters (SCFs) operate from a single +5V (MAX7401) or +3V (MAX7405) supply. These devices draw only 2mA of supply current and allow corner frequencies from 1Hz to 5kHz, making them ideal for low-power post-DAC filtering and anti-aliasing applications. They feature a shutdown mode that reduces supply current to 0.2µA.
Two clocking options are available on these devices: self-clocking (through the use of an external capacitor) or external clocking for tighter corner-frequency control. An offset adjust pin allows for adjustment of the DC output level.
The MAX7401/MAX7405 Bessel filters provide low overshoot and fast settling. Their fixed response simplifies the design task to selecting a clock frequency.
Applications
- ADC Anti-Aliasing
- Air-Bag Electronics
- CT2 Base Stations
- Post-DAC Filtering
- Speech Processing
Documentation
Data Sheet 1
Technical Articles 4
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 |
|---|---|---|---|
| MAX7401CPA+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MAX7401CSA+ | Small-Outline IC, Narrow (0.15in) | ||
| MAX7401CSA+T | Small-Outline IC, Narrow (0.15in) | ||
| MAX7401EPA+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MAX7401ESA+ | Small-Outline IC, Narrow (0.15in) | ||
| MAX7401ESA+T | Small-Outline IC, Narrow (0.15in) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
May 22, 2018 - 1702N ASSEMBLY |
||
| MAX7401CSA+ | PRODUCTION | |
| MAX7401CSA+T | PRODUCTION | |
| MAX7401ESA+ | PRODUCTION | |
| MAX7401ESA+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.