MAX291ESA+ Maxim Integrated Integrated Circuit (Small Outline Packages) In Stock
MAX291ESA+ is an 8th-order Butterworth switched-capacitor low-pass filter IC by Maxim Integrated in an 8-pin NSOIC package. Key specs: 4.75 V to 11 V supply range, single-supply or dual ±5 V operation, clock-tunable cutoff frequency. Suitable for anti-aliasing, data acquisition, and audio signal filtering in precision analog systems.
- Manufacturer
- Maxim Integrated
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MAX291ESA+ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $9.9644(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MAX291ESA+?
- 8th-order Butterworth switched-capacitor low-pass filter with clock-tunable cutoff frequency for flexible analog filtering
- Wide supply voltage range of 4.75 V to 11 V supporting both single-supply and dual ±5 V operation
- Compact 8-pin NSOIC package enabling easy integration into precision analog PCB designs
- Maximally flat Butterworth response minimizing passband ripple for clean signal conditioning
What is MAX291ESA+ used for?
The Maxim Integrated MAX291ESA+ is an 8th-order Butterworth switched-capacitor low-pass filter suited for anti-aliasing ahead of ADCs, noise rejection in data acquisition systems, and audio signal conditioning in precision instrumentation. Its clock-tunable cutoff frequency allows designers to adjust the filter corner from a single external clock signal, making it versatile for multi-rate signal processing applications in medical devices, industrial sensors, and communications equipment.
What are the specifications of MAX291ESA+?
| Manufacturer Package Code | 8-SOIC_N-150_MIL |
| Date Of Intro | 1999-05-26 |
| YTEOL | 9 |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Neg Supply Voltage-Max (Vsup) | -5.5 V |
| Neg Supply Voltage-Min (Vsup) | -2.375 V |
| Neg Supply Voltage-Nom (Vsup) | -5 V |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 22mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.375V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA |
Where can I find the MAX291ESA+ datasheet?
MAX291ESA+ Datasheet DownloadOfficial datasheet from Maxim Integrated
What are equivalent replacements for MAX291ESA+?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What filter order and response type does the MAX291ESA+ implement for anti-aliasing applications?
The MAX291ESA+ implements an 8th-order Butterworth low-pass filter with a maximally flat passband response, providing steep roll-off beyond the cutoff frequency. This makes it highly effective for anti-aliasing before 12-bit or 16-bit ADC inputs in data acquisition systems operating at supply voltages from 4.75 V to 11 V.
How is the cutoff frequency of MAX291ESA+ set, and what flexibility does this provide the designer?
The MAX291ESA+ cutoff frequency is set by an external clock signal at a ratio of 100:1 to the clock frequency, allowing the filter corner to be tuned over a wide range without changing passive components. This clock-programmable approach lets engineers adjust the filter in real time for applications requiring variable sample rates or multiple frequency bands.
Can MAX291ESA+ operate from a single-supply 5 V rail in portable instrumentation designs?
Yes, the MAX291ESA+ operates from a single positive supply of 4.75 V to 11 V or a dual ±5 V supply, making it compatible with standard 5 V single-supply analog systems. Its 8-pin SOIC package keeps PCB area small for portable data loggers, field instruments, and battery-powered sensor nodes requiring precision low-pass filtering.
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Why Buy from FindMyChip
About Maxim Integrated
Maxim Integrated is a leading electronic component manufacturer. FindMyChip sources Maxim Integrated ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
More from Maxim Integrated
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $15.7781 | $15.78 |
| 19+ | $12.9731 | $246.49 |
| 78+ | $12.2719 | $957.21 |
| 100+ | $10.6122 | $1061.22 |
| 500+ | $10.1791 | $5089.54 |
| 1000+ | $9.9644 | $9964.40 |
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