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MAX7426EUA+

Switched Capacitor Filter, Lowpass, 5th, 1, 4.5 V, 5.5 V, µMAX

MAXIM INTEGRATED PRODUCTS MAX7426EUA+

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Manufacturer Part No:
MAX7426EUA+
Order Code:
2516187
Technical Datasheet:
MAX7426EUA+   Datasheet
See all Technical Docs

Product Overview

The MAX7426EUA+ is a 5th order, low pass, elliptic, switched capacitor filter (SCF) in 8 pin µMAX package. It has a sharp roll-off with good stop band rejection and operates with a 100:1 clock to corner frequency ratio. The device emulate a passive network using switched capacitor integrators with summing and scaling. The passive network may be synthesized using CAD programs or may be found in many filter books. It draw only 0.8mA of supply current and allow corner frequencies from 1Hz to 12KHz, making device ideal for low power post-DAC filtering and anti-aliasing applications. It can be put into a low power mode, reducing supply current to 0.2µA. Device features two clocking options, self-clocking (through the use of an external capacitor) or external clocking for tighter cut-off-frequency control. An offset-adjust pin allows for adjustment of the DC output level. It is used in ADC anti-aliasing, post-DAC filtering, CT2 base stations and speech processing.
  • Supply voltage range is 4.5V to 5.5V
  • Operating temperature range from -40°C to 85°C
  • Total harmonic distortion plus noise is -81dB at fIN = 200Hz
  • Low output offset of ±4mV, offset voltage gain is +1V
  • V
  • Sharp roll-off with a transition ratio of 1.25
  • Clock to corner tempco is 10ppm
  • °C, corner-frequency range of 0.001KHz to 9KHz
  • Internal oscillator frequency is 17.5KHz at COSC = 1000pF, clock output current is ±8µA
  • Power supply rejection ratio is 70dB at measured at DC
  • Deliver 37dB of stopband rejection

Applications

Audio, Signal Processing

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Product Information

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:
Lowpass

:
5th

:
1

:
4.5V

:
5.5V

:
µMAX

:
8Pins

:
9kHz

:
17.5kHz

:
-40°C

:
85°C

:
-

:
MSL 1 - Unlimited

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Technical Docs (1)

CAD Downloads

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Terms and Conditions

CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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