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Product Detailed Parameters
- Description：IC FILTER 50KHZ LOWPASS 16SOIC
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube
- Filter Type：Butterworth, Low Pass Switched Capacitor
- Frequency - Cutoff or Center：50kHz
- Number of Filters：1
- Filter Order：8th
- Voltage - Supply：4.75V ~ 11V, ±2.375V ~ 5.5V
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：16-SOIC
- Grade：-
- Qualification：-
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Overview
The MAX295EWE+ is an 8th-order, lowpass, switched-capacitor filter in a 16-pin Wide SO package. It provides a Butterworth response with a clock-to-corner frequency ratio of 50:1 and a corner frequency range from 0.1Hz to 50kHz. The device operates on a single +5V supply or dual ±5V supplies. Key electrical parameters include a typical THD plus noise of -70dB, a maximum supply voltage of 11V, and an operating temperature range of -40°C to +85°C.
Feature Summary
- Provides an 8th-order lowpass Butterworth response for maximally flat passband performance.
- Features a tunable corner frequency range from 0.1Hz to 50kHz controlled by the clock input.
- Includes an uncommitted operational amplifier suitable for anti-aliasing or clock-noise filtering.
Applications
- ADC Anti-Aliasing Filter
- DAC Post-Filtering
- Noise Analysis
Procurement Notes
Verify the specific suffix 'EWE+' against the manufacturer's current ordering guide to confirm the package type, temperature rating, and RoHS compliance status. Ensure the design supports the required clock signal specifications and power supply configurations before finalizing procurement.
Selection Notes
Select this component when an 8th-order lowpass Butterworth response is required with a maximum corner frequency of 50kHz. Verify that the system can provide a stable clock signal within the 2.5MHz limit and that the available supply voltage matches the specified single or dual rail requirements.
Part Context
This part belongs to the MAX291/MAX292/MAX295/MAX296 family of 8th-order lowpass switched-capacitor filters. While the MAX291 and MAX292 offer a 25kHz maximum corner frequency, the MAX295 variant specifically extends this capability to 50kHz, maintaining the same Butterworth characteristics and pinout compatibility.
Replacement Considerations
The MAX291 serves as a functional substitute if the application requires a lower maximum corner frequency of 25kHz. Other members of the MAX29x series may be considered based on the required filter response type, such as Bessel characteristics found in the MAX292 and MAX296 variants.
FAQ
What is the clock-to-corner frequency ratio for the MAX295?
The MAX295 operates with a clock-to-corner frequency ratio of 50:1.
Can the MAX295 operate with a single power supply?
Yes, the device can operate with a single +5V supply or dual ±5V supplies.
What is the purpose of the uncommitted op amp in this device?
The uncommitted op amp can be used to build a continuous-time lowpass filter for post-filtering or anti-aliasing applications.
