MAX7405
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MAX7405

8th-Order, Lowpass, Bessel, Switched-Capacitor Filters

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Smallest, Lowest-Power 8th-Order Bessel Filters

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Models 5
1ku List Price Starting From $4.19
Features
  • 8th-Order, Lowpass Bessel Filters
  • Low Noise and Distortion: -82dB THD + Noise
  • Clock-Tunable Corner Frequency (1Hz to 5kHz)
  • 100:1 Clock-to-Corner Ratio
  • Single-Supply Operation
    • +5V (MAX7401)
    • +3V (MAX7405)
  • Low Power
    • 2mA (Operating Mode)
    • 0.2µA (Shutdown Mode)
  • Available in 8-Pin SO/DIP Packages
  • Low Output Offset: ±5mV
Additional Details
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The MAX7401/MAX7405 8th-order, lowpass, Bessel, switched-capacitor filters (SCFs) operate from a single +5V (MAX7401) or +3V (MAX7405) supply. These devices draw only 2mA of supply current and allow corner frequencies from 1Hz to 5kHz, making them ideal for low-power post-DAC filtering and anti-aliasing applications. They feature a shutdown mode that reduces supply current to 0.2µA.

Two clocking options are available on these devices: self-clocking (through the use of an external capacitor) or external clocking for tighter corner-frequency control. An offset adjust pin allows for adjustment of the DC output level.

The MAX7401/MAX7405 Bessel filters provide low overshoot and fast settling. Their fixed response simplifies the design task to selecting a clock frequency.

Applications

  • ADC Anti-Aliasing
  • Air-Bag Electronics
  • CT2 Base Stations
  • Post-DAC Filtering
  • Speech Processing
Part Models 5
1ku List Price Starting From $4.19

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Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX7405CSA+
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MAX7405CSA+T
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MAX7405EPA+
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MAX7405ESA+
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MAX7405ESA+T
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Product Lifecycle

PCN

Oct 30, 2020

- 1702R2

ASSEMBLY

MAX7405CSA+

PRODUCTION

MAX7405CSA+T

PRODUCTION

May 22, 2018

- 1702N

ASSEMBLY

MAX7405ESA+

PRODUCTION

MAX7405ESA+T

PRODUCTION

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Part Models

Product Lifecycle

PCN

Oct 30, 2020

- 1702R2

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ASSEMBLY

MAX7405CSA+

PRODUCTION

MAX7405CSA+T

PRODUCTION

May 22, 2018

- 1702N

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ASSEMBLY

MAX7405ESA+

PRODUCTION

MAX7405ESA+T

PRODUCTION

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