MAX7426

PRODUCTION

5th-Order, Lowpass, Elliptic, Switched-Capacitor Filters

Industry's Lowest-Power and Industry's Smallest 5th-Order Lowpass Filters

Data Sheet (Rev. 0) Product Selection Table

Part Models: 5
1ku List Price: Starting From $1.57

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Overview

5th-Order, Elliptic Lowpass Filters
Low Noise and Distortion: -80dB THD + Noise
Clock-Tunable Corner Frequency (1Hz to 12kHz)
Single-Supply Operation
- +5V (MAX7426)
- +3V (MAX7427)
Low Power
- 0.8mA (Operating Mode)
- 0.2µA (Shutdown Mode)
Available in 8-Pin µMAX®/PDIP Packages
Low Output Offset: ±4mV

The MAX7426/MAX7427 5th-order, lowpass, elliptic, switched-capacitor filters (SCFs) operate from a single +5V (MAX7426) or +3V (MAX7427) supply. The devices draw only 0.8mA of supply current and allow corner frequencies from 1Hz to 12kHz, making them ideal for low-power post-DAC filtering and anti-aliasing applications. They can be put into a low-power mode, reducing supply current to 0.2µA.

Two clocking options are available: self-clocking (through the use of an external capacitor) or external clocking for tighter cutoff-frequency control. An offset-adjust pin allows for adjustment of the DC output level.

The MAX7426/MAX7427 deliver 37dB of stopband rejection and a sharp rolloff with a transition ratio of 1.25. Their fixed response limits the design task to selecting a clock frequency.

Applications

ADC Anti-Aliasing Filter
Post-DAC Filtering Speech Processing

Part Models: 5
1ku List Price: Starting From $1.57

Documentation

Data Sheet 1

MAX7426-MAX7427: 5th-Order, Lowpass, Elliptic, Switched-Capacitor Filters Data Sheet (Rev.0) 06/15/2000

Technical Articles 1

Generating Switched-Capacitor-Filter Clocks 11/19/2001

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
MAX7426CPA+	Plastic Dual-In-Line, Narrow (0.3in)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX7426CUA+	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX7426CUA+T	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX7426EUA+	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX7426EUA+T	Micro-MAX, Thin Shrink Small-Outline	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Sep 19, 2018 - 1753N ASSEMBLY
		pcn_1753n
MAX7426CUA+	PRODUCTION
MAX7426CUA+T	PRODUCTION
MAX7426EUA+	PRODUCTION
MAX7426EUA+T	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Active Filters 2
MAX7411	PRODUCTION	5th Order, Lowpass, Elliptic, Switched-Capacitor Filters
MAX7415	PRODUCTION	5th Order, Lowpass, Elliptic, Switched-Capacitor Filters

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