Maxim > Products > Filters (Analog) > MAX7401, MAX7405

MAX7401, MAX7405

8th-Order, Lowpass, Bessel, Switched-Capacitor Filters

Smallest, Lowest-Power 8th-Order Bessel Filters
 Overview   Technical Documents   Ordering Info   Related Products   User Comments (0)   All   


Status Explanations for product status codes

Active: In Production.

Description

  Create a design and simulate with EE-Sim: [MAX7401][MAX7405]

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.
 

Data Sheet

Download this datasheet in PDF formatDownload Rev 1 (PDF, 208kB)
Send this datasheet to any email addressE-Mail

Key Features

  • 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
 

Applications/Uses

  • ADC Anti-Aliasing
  • Air-Bag Electronics
  • CT2 Base Stations
  • Post-DAC Filtering
  • Speech Processing
   

Key Specifications:

Active Filters
Part Number Filter Sections Order Per Filter Section Filter Class Filter Type Filter Characteristic Program Method Lowest Cutoff
(Hz)		 Highest Cutoff
(kHz)		 VSUPPLY
(V)		 Design Tools Oper. Temp.
(°C)		 Budgetary Price
max min See Notes
MAX7401  1 8 Switched Cap Lowpass Bessel Clock 1 5 5 EE-Sim
-40 to +85
0 to +70
 $2.69 @1k
MAX7405  3 $2.69 @1k
See All Active Filters (50)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


Diagram

MAX7401, MAX7405: Typical Operating Circuit
Typical Operating Circuit

Application Notes

Tutorial 724   Generating Switched-Capacitor-Filter Clocks
Tutorial 733   A Filter Primer
Tutorial 928   Filter Basics: Anti-Aliasing
Tutorial 4422   Integrated solutions make analog filter design easy
Tutorial 4993   Reduce the Chances of Human Error: Part 2, Super Amps and Filters for Analog Interface

Reliability Reports

Show FIT data for:
Request Reliability Report for:

Software/Models

  Create a design and simulate with EE-Sim: [MAX7401][MAX7405]

Ordering Information

Filters: Part Number: Package: Temperature: Tape and Reel Sample
Part Number Free
Sample		 Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
MAX7401CPA    
Active PDIP(N);8 pin;79.7 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P8-2*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX7401CPA+  
Active PDIP(N);8 pin;79.7 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P8+2*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX7401CSA    
Active SOIC(N);8 pin;30.9 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8-5*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX7401CSA+  
Active SOIC(N);8 pin;30.9 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8+5*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX7401CSA+T    
Active SOIC(N);8 pin;30.9 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8+5*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX7401CSA-T    
Active N.SO;8 pin

Land Pattern: Not Available

0°C to +70°C See data sheet
MAX7401EPA    
Active PDIP(N);8 pin;79.7 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P8-2*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX7401EPA+  
Active PDIP(N);8 pin;79.7 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P8+2*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX7401ESA    
Active SOIC(N);8 pin;30.9 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8-5*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX7401ESA+  
Active SOIC(N);8 pin;30.9 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8+5*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
Part Number Free
Sample		 Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
MAX7401ESA+T    
Active SOIC(N);8 pin;30.9 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8+5*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX7401ESA-T    
Active N.SO;8 pin

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX7405CPA    
Active PDIP(N);8 pin;79.7 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P8-2*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX7405CPA+  
Active PDIP(N);8 pin;79.7 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P8+2*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX7405CSA    
Active SOIC(N);8 pin;30.9 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8-5*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
MAX7405CSA+  
Active SOIC(N);8 pin;30.9 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8+5*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX7405CSA+T    
Active N.SO;8 pin

Land Pattern: Not Available

0°C to +70°C See data sheet
MAX7405CSA-T    
Active N.SO;8 pin

Land Pattern: Not Available

0°C to +70°C See data sheet
MAX7405EPA    
Active PDIP(N);8 pin;79.7 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P8-2*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX7405EPA+  
Active PDIP(N);8 pin;79.7 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P8+2*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
Part Number Free
Sample		 Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
MAX7405ESA    
Active SOIC(N);8 pin;30.9 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8-5*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
MAX7405ESA+  
Active SOIC(N);8 pin;30.9 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8+5*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX7405ESA+T    
Active N.SO;8 pin

Land Pattern: Not Available

-40°C to +85°C See data sheet
MAX7405ESA-T    
Active N.SO;8 pin

Land Pattern: Not Available

-40°C to +85°C See data sheet

Notes:
  1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
  2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
  3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
  4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Notes and Comments

Single 8th order, Bessel, switched-capacitor filter. 5kHz maximum F (c)

Similar Products by Function

MAX291, MAX292, MAX295, MAX296 8th-Order, Lowpass, Switched-Capacitor Filters
See All Active Filters (50 Products)


Didn't Find What You Need?

Next Day Product Selection Assistance from Applications Engineers
Parametric Search
Applications Help

Information Index

Overview

  

Technical Documents

  

Ordering Info

  

Related Products

  
Description
Key Features
Applications/Uses
Key Specifications
Diagram
Notes and Comments
  Data Sheet
Application Notes
Evaluation Kits
Product Guides
Reliability Reports
Software/Models
  Price and Availability
Samples
Buy Online
Package Information
Lead-Free Information
  Similar Products by Function
Similar Products by Application
Evaluation Kits
Products with Similar Part Numbers
Products Used With This
 
Document Ref.: 19-4788 Rev 1; 1999-06-01
This page last modified: 2007-07-20

 


Contact Us     |     Privacy Policy     |     Legal Notices
Copyright © 2012 by Maxim Integrated Products