MAX274ACWI Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices MAX274ACWI is a continuous-time, 8th-order active lowpass filter IC with a 150kHz cutoff frequency housed in a 28-pin SOIC package. Requires no external capacitors for filter pole definition, offering accurate and tunable Butterworth or Chebyshev responses. Available from stock worldwide with competitive pricing.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- MAX274ACWI Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $7.0625(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8th-order continuous-time lowpass filter with up to 150kHz cutoff frequency, implemented without external capacitors for minimal component count
- Pin-selectable Butterworth or Chebyshev filter response enables direct optimization for flat passband or steep roll-off without redesign
- 28-pin SOIC package with single or dual supply operation from 5V to plus or minus 5V rails for analog signal conditioning in mixed-signal systems
Applications
The MAX274ACWI is used in audio signal processing, anti-aliasing filters ahead of high-speed ADCs, and communications receiver front ends where a high-order continuous-time lowpass characteristic up to 150kHz must be implemented without bulky discrete RC networks. Its pin-configurable filter order and response type make it suitable for instrumentation, data acquisition front ends, and electromagnetic interference suppression in industrial measurement equipment.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What filter order and maximum cutoff frequency does the MAX274ACWI provide for anti-aliasing applications?
The MAX274ACWI implements an 8th-order continuous-time active lowpass filter with a maximum cutoff frequency of 150kHz. An 8th-order filter provides 160 dB per decade roll-off beyond the cutoff, which is sufficient to attenuate aliasing components for ADC sampling rates above 300ksps while keeping the anti-aliasing filter design to a single 28-pin SOIC IC.
Why would a designer choose MAX274ACWI over a discrete RC ladder filter for a 100kHz lowpass anti-aliasing application?
A discrete 8th-order RC lowpass filter at 100kHz requires 8 or more precision capacitors and resistors with tight tolerance matching, consuming significant PCB area and assembly complexity. The MAX274ACWI replaces all of these with a single 28-pin SOIC IC that internally defines the filter poles, reducing BOM count by over 10 components, cutting board area, and improving filter accuracy since the on-chip pole frequencies are laser-trimmed to within 1% at the factory.
Can MAX274ACWI be configured for a Chebyshev response instead of Butterworth, and what is the tradeoff?
Yes, the MAX274ACWI supports both Butterworth and Chebyshev filter responses selected via pin configuration. A Chebyshev setting achieves a steeper roll-off beyond 150kHz at the cost of passband ripple of up to 1 dB, whereas the Butterworth mode provides a maximally flat passband with slightly less steep attenuation slope. Engineers select Chebyshev when out-of-band rejection is critical, and Butterworth when flat amplitude response within the passband is more important for the measurement or audio application.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
More from Analog Devices
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $13.1000 | $13.10 |
| 5000+ | $7.0625 | $35312.50 |
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