MAX291CSA+ by Analog Devices

8th-Order, Lowpass, Switched-Capacitor Filters


The MAX291/MAX292/MAX295/MAX296 are easy-to-use, 8th-order, lowpass, switched-capacitor filters that can be set up with corner frequencies from 0.1Hz to 25kHz (MAX291/MAX292) or 0.1Hz to 50kHz (MAX295/MAX296). The MAX291/MAX295 Butterworth filters provide maximally flat passband response, and the MAX292/MAX296 Bessel filters provide low overshoot and fast settling. All four filters have fixed responses, so the design task is limited to selecting the clock frequency that controls the filter's corner frequency. An external capacitor is used to generate a clock using the internal oscillator, or an external clock signal can be used. An uncommitted operational amplifier (noninverting input grounded) is provided for building a continuous time lowpass filter for post-filtering or anti-aliasing. Produced in an 8-pin DIP/SO and a 16-pin wide SO package, and requiring a minimum of external components, the MAX291 series delivers very aggressive performance from a tiny area.

Where to Buy

Prices starting from US$6.24

Distributor Stock
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Farnell
from US$10.42
98
in stock
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Analog Devices
from US$9.97
2,110
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Newark Electronics
from US$9.82
98
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element14
from US$11.10
98
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Transfer Multisort Elektronik
from US$9.34
64
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CoreStaff
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10
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Features

8th-Order Lowpass Filters: Butterworth (MAX291/MAX295) Bessel (MAX292/MAX296)
Butterworth (MAX291/MAX295)
Bessel (MAX292/MAX296)
Clock-Tunable Corner-Frequency Range: 0.1Hz to 25kHz (MAX291/MAX292) 0.1Hz to 50kHz (MAX295/MAX296)
0.1Hz to 25kHz (MAX291/MAX292)
0.1Hz to 50kHz (MAX295/MAX296)
No External Resistors or Capacitors Required
Internal or External Clock
Clock to Corner Frequency Ratio: 100:1 (MAX291/MAX292) 50:1 (MAX295/MAX296)
100:1 (MAX291/MAX292)
50:1 (MAX295/MAX296)
Low Noise: -70dB THD + Noise (Typ)
Operate with a Single +5V Supply or Dual ±5V Supplies
Uncommitted Op Amp for Anti-Aliasing or Clock-Noise Filtering
8-Pin DIP and SO Packages

Specifications

Filter Type Lowpass
Filter Sections 1
Order Per Filter Section 8
Highest Cutoff (kHz) (min) 25
Lowest Cutoff (Hz) (max) 0.1
Filter Class Switched Cap
Filter Characteristic Butterworth
Program Method Clock
Oper. Temp. (°C) -55 to +125-40 to +850 to +70
Package/Pins CDIP/8PDIP/8SOIC (N)/8SOIC (W)/16
BudgetaryPrice (See Notes) 5.43


MAX291CSA+ Semiconductors - ICs by Analog Devices

SWITCH CAP FILTER LOWPASS 25KHZ NSOIC

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

IC Filter Type Lowpass
Filter Order 8th
No. of Filters 1
Supply Voltage Min 4.75V
Supply Voltage Max 11V
Filter IC Case Style NSOIC
No. of Pins 8Pins
Cutoff Frequency 25kHz
Program Clock Frequency Typ 35kHz
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Product Range -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

8th-Order, Lowpass, Switched-C | Analog Devices
Switch Cap Filter, Lowpass, 25Khz, Nsoic | Newark Electronics
SWITCH CAP FILTER, LOWPASS, 25KHZ, NSOIC | element14
Filter: digital | Transfer Multisort Elektronik

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX291CSA+ ?

Additional datasheets, footprints and schematics for MAX291CSA+ are listed on our Part Details page. You can also find images and similar parts to MAX291CSA+ on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for MAX291CSA+ on our Product Comparison page. Access via the 'View Pricing & Stock' button to view MAX291CSA+ price breaks, MOQs, lead times, inventory and SKUs from distributors.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the MAX291CSA+ you can contact the distributor directly for product support, shipping queries etc.

Is the MAX291CSA+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX291CSA+ have stock available?

Authorised distributors including Analog Devices, Newark Electronics, element14, Farnell and Transfer Multisort Elektronik have stock available or on a lead time for MAX291CSA+ .

How do I check stock and lead times for all distributors?

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