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Maxim provides a wide range of anti-aliasing and post-DAC analog filter ICs that improve system performance for frequencies up to 300kHz and which complement our ADC and DAC product lines.

Digitally Controlled Sine-Wave Generator

By removing harmonics from a square wave, this circuit generates an accurate and adjustable sine...

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Part Number Title Document Type Date

MAX270 Digitally-Programmed, Dual 2nd-Order Continuous Lowpass Filter

MAX270 Digitally-Programmed, Dual 2nd-Order Continuous Lowpass Filter

The MAX270/MAX271 are digitally-programmed, dual second-order continuous-time lowpass filters. T...
  • Continuous-Time Filtering - No Clock Required
  • Dual 2nd-Order Lowpass Filters
  • Sections Independently Programmable: 1kHz to 25kHz
  • 96dB Dynamic Range
  • No External Components
  • Cascadable for Higher Order
  • Low-Power Shutdown Mode
  • Track-and-Hold (MAX271)
MAX271 Digitally-Programmed, Dual 2nd-Order Continuous Lowpass Filter

MAX271 Digitally-Programmed, Dual 2nd-Order Continuous Lowpass Filter

The MAX270/MAX271 are digitally-programmed, dual second-order continuous-time lowpass filters. T...
  • Continuous-Time Filtering - No Clock Required
  • Dual 2nd-Order Lowpass Filters
  • Sections Independently Programmable: 1kHz to 25kHz
  • 96dB Dynamic Range
  • No External Components
  • Cascadable for Higher Order
  • Low-Power Shutdown Mode
  • Track-and-Hold (MAX271)
MAX291 8th-Order, Lowpass, Switched-Capacitor Filters

MAX291 8th-Order, Lowpass, Switched-Capacitor Filters

The MAX291/MAX292/MAX295/MAX296 are easy-to-use, 8th-order, lowpass, switched-capacitor filters ...
  • 8th-Order Lowpass Filters:
    • Butterworth (MAX291/MAX295)
    • Bessel (MAX292/MAX296)
  • Clock-Tunable Corner-Frequency Range:
    • 0.1Hz to 25kHz (MAX291/MAX292)
    • 0.1Hz to 50kHz (MAX295/MAX296)
  • No External Resistors or Capacitors Required
  • Internal or External Clock
  • Clock to Corner Frequency Ratio:
    • 100:1 (MAX291/MAX292)
    • 50:1 (MAX295/MAX296)
  • Low Noise: -70dB THD + Noise (Typ)
  • Operate with a Single +5V Supply or Dual ±5V Supplies
  • Uncommitted Op Amp for Anti-Aliasing or Clock-Noise Filtering
  • 8-Pin DIP and SO Packages
MAX292 8th-Order, Lowpass, Switched-Capacitor Filters

MAX292 8th-Order, Lowpass, Switched-Capacitor Filters

The MAX291/MAX292/MAX295/MAX296 are easy-to-use, 8th-order, lowpass, switched-capacitor filters ...
  • 8th-Order Lowpass Filters:
    • Butterworth (MAX291/MAX295)
    • Bessel (MAX292/MAX296)
  • Clock-Tunable Corner-Frequency Range:
    • 0.1Hz to 25kHz (MAX291/MAX292)
    • 0.1Hz to 50kHz (MAX295/MAX296)
  • No External Resistors or Capacitors Required
  • Internal or External Clock
  • Clock to Corner Frequency Ratio:
    • 100:1 (MAX291/MAX292)
    • 50:1 (MAX295/MAX296)
  • Low Noise: -70dB THD + Noise (Typ)
  • Operate with a Single +5V Supply or Dual ±5V Supplies
  • Uncommitted Op Amp for Anti-Aliasing or Clock-Noise Filtering
  • 8-Pin DIP and SO Packages
MAX295 8th-Order, Lowpass, Switched-Capacitor Filters

MAX295 8th-Order, Lowpass, Switched-Capacitor Filters

The MAX291/MAX292/MAX295/MAX296 are easy-to-use, 8th-order, lowpass, switched-capacitor filters ...
  • 8th-Order Lowpass Filters:
    • Butterworth (MAX291/MAX295)
    • Bessel (MAX292/MAX296)
  • Clock-Tunable Corner-Frequency Range:
    • 0.1Hz to 25kHz (MAX291/MAX292)
    • 0.1Hz to 50kHz (MAX295/MAX296)
  • No External Resistors or Capacitors Required
  • Internal or External Clock
  • Clock to Corner Frequency Ratio:
    • 100:1 (MAX291/MAX292)
    • 50:1 (MAX295/MAX296)
  • Low Noise: -70dB THD + Noise (Typ)
  • Operate with a Single +5V Supply or Dual ±5V Supplies
  • Uncommitted Op Amp for Anti-Aliasing or Clock-Noise Filtering
  • 8-Pin DIP and SO Packages
MAX296 8th-Order, Lowpass, Switched-Capacitor Filters

MAX296 8th-Order, Lowpass, Switched-Capacitor Filters

The MAX291/MAX292/MAX295/MAX296 are easy-to-use, 8th-order, lowpass, switched-capacitor filters ...
  • 8th-Order Lowpass Filters:
    • Butterworth (MAX291/MAX295)
    • Bessel (MAX292/MAX296)
  • Clock-Tunable Corner-Frequency Range:
    • 0.1Hz to 25kHz (MAX291/MAX292)
    • 0.1Hz to 50kHz (MAX295/MAX296)
  • No External Resistors or Capacitors Required
  • Internal or External Clock
  • Clock to Corner Frequency Ratio:
    • 100:1 (MAX291/MAX292)
    • 50:1 (MAX295/MAX296)
  • Low Noise: -70dB THD + Noise (Typ)
  • Operate with a Single +5V Supply or Dual ±5V Supplies
  • Uncommitted Op Amp for Anti-Aliasing or Clock-Noise Filtering
  • 8-Pin DIP and SO Packages

MAXFILTERBRD Evaluation Kit for the MAX7408, MAX7409, MAX7410, MAX7411, MAX7412, MAX7413, MAX7414, MAX7415, MAX7418, MAX7419, MAX7420, MAX7421, MAX7422, MAX7423, MAX7424, and MAX7425

The MAXFILTERBRD is an unpopulated PCB design to evaluate the MAX7408–MAX7415/MAX7418–MAX7425 5t...
  • CLK Pad for External Clock Frequency
  • Lead(Pb)-Free and RoHS Compliant
  • Proven PCB Layout
MAX7490 Dual Universal Switched-Capacitor Filters

MAX7490 Dual Universal Switched-Capacitor Filters

The MAX7490/MAX7491 consist of two identical low-power, low-voltage, wide dynamic range, rail-to...
  • Dual 2nd-Order Filter in a 16-Pin QSOP Package
  • High Accuracy
    • Q Accuracy: ±0.2%
    • Clock-to-Center Frequency Error: ±0.2%
  • Rail-to-Rail Input and Output Operation
  • Single-Supply Operation: +5V (MAX7490) or +3V (MAX7491)
  • Internal or External Clock
  • Highpass, Lowpass, Bandpass, and Notch Filters
  • Clock-to-Center Frequency Ratio of 100:1
  • Internal Sampling-to-Center Frequency Ratio of 200:1
  • Center Frequency up to 40kHz
  • Easily Cascaded for Multipole Filters
  • Low-Power Shutdown: < 1µA Supply Current
MAX7491 Dual Universal Switched-Capacitor Filters

MAX7491 Dual Universal Switched-Capacitor Filters

The MAX7490/MAX7491 consist of two identical low-power, low-voltage, wide dynamic range, rail-to...
  • Dual 2nd-Order Filter in a 16-Pin QSOP Package
  • High Accuracy
    • Q Accuracy: ±0.2%
    • Clock-to-Center Frequency Error: ±0.2%
  • Rail-to-Rail Input and Output Operation
  • Single-Supply Operation: +5V (MAX7490) or +3V (MAX7491)
  • Internal or External Clock
  • Highpass, Lowpass, Bandpass, and Notch Filters
  • Clock-to-Center Frequency Ratio of 100:1
  • Internal Sampling-to-Center Frequency Ratio of 200:1
  • Center Frequency up to 40kHz
  • Easily Cascaded for Multipole Filters
  • Low-Power Shutdown: < 1µA Supply Current
MAX294 8th-Order, Lowpass, Elliptic, Switched-Capacitor Filters

MAX294 8th-Order, Lowpass, Elliptic, Switched-Capacitor Filters

The MAX293/MAX294/MAX297 are easy-to-use, 8th-order, lowpass, elliptic, switched-capacitor filte...
  • 8th-Order Lowpass Elliptic Filters
  • Clock-Tunable Corner-Frequency Range:
    • 0.1Hz to 25kHz (MAX293/MAX294)
    • 0.1Hz to 50kHz (MAX297)
  • No External Resistors or Capacitors Required
  • Internal or External Clock
  • Clock to Corner Frequency Ratio
    • 100:1 (MAX293/MAX294)
    • 50:1 (MAX297)
  • Operate with a Single +5V Supply or Dual ±5V Supplies
  • Uncommitted Op Amp for Anti-Aliasing or Clock-Noise Filtering
  • 8-Pin DIP and 16-Pin Wide SO Packages
MAX297 8th-Order, Lowpass, Elliptic, Switched-Capacitor Filters

MAX297 8th-Order, Lowpass, Elliptic, Switched-Capacitor Filters

The MAX293/MAX294/MAX297 are easy-to-use, 8th-order, lowpass, elliptic, switched-capacitor filte...
  • 8th-Order Lowpass Elliptic Filters
  • Clock-Tunable Corner-Frequency Range:
    • 0.1Hz to 25kHz (MAX293/MAX294)
    • 0.1Hz to 50kHz (MAX297)
  • No External Resistors or Capacitors Required
  • Internal or External Clock
  • Clock to Corner Frequency Ratio
    • 100:1 (MAX293/MAX294)
    • 50:1 (MAX297)
  • Operate with a Single +5V Supply or Dual ±5V Supplies
  • Uncommitted Op Amp for Anti-Aliasing or Clock-Noise Filtering
  • 8-Pin DIP and 16-Pin Wide SO Packages
MAX293 8th-Order, Lowpass, Elliptic, Switched-Capacitor Filters

MAX293 8th-Order, Lowpass, Elliptic, Switched-Capacitor Filters

The MAX293/MAX294/MAX297 are easy-to-use, 8th-order, lowpass, elliptic, switched-capacitor filte...
  • 8th-Order Lowpass Elliptic Filters
  • Clock-Tunable Corner-Frequency Range:
    • 0.1Hz to 25kHz (MAX293/MAX294)
    • 0.1Hz to 50kHz (MAX297)
  • No External Resistors or Capacitors Required
  • Internal or External Clock
  • Clock to Corner Frequency Ratio
    • 100:1 (MAX293/MAX294)
    • 50:1 (MAX297)
  • Operate with a Single +5V Supply or Dual ±5V Supplies
  • Uncommitted Op Amp for Anti-Aliasing or Clock-Noise Filtering
  • 8-Pin DIP and 16-Pin Wide SO Packages
MAX267 Pin-Programmable Universal and Bandpass Filters

MAX267 Pin-Programmable Universal and Bandpass Filters

The MAX263/264 and MAX267/268 CMOS switched-capacitor active filters are designed for precision ...
  • 32-Step Center Frequency Control
  • 128-Step Q Control
  • Independent Q and f0 Programming
  • Guaranteed Clock to f0 Ratio—1% (A grade)
  • 75kHz f0 Range (MAX264/268)
  • Single +5V and ±5V Operation
MAX264 Pin-Programmable Universal and Bandpass Filters

MAX264 Pin-Programmable Universal and Bandpass Filters

The MAX263/264 and MAX267/268 CMOS switched-capacitor active filters are designed for precision ...
  • 32-Step Center Frequency Control
  • 128-Step Q Control
  • Independent Q and f0 Programming
  • Guaranteed Clock to f0 Ratio—1% (A grade)
  • 75kHz f0 Range (MAX264/268)
  • Single +5V and ±5V Operation
MAX263 Pin-Programmable Universal and Bandpass Filters

MAX263 Pin-Programmable Universal and Bandpass Filters

The MAX263/264 and MAX267/268 CMOS switched-capacitor active filters are designed for precision ...
  • 32-Step Center Frequency Control
  • 128-Step Q Control
  • Independent Q and f0 Programming
  • Guaranteed Clock to f0 Ratio—1% (A grade)
  • 75kHz f0 Range (MAX264/268)
  • Single +5V and ±5V Operation
MAX268 Pin-Programmable Universal and Bandpass Filters

MAX268 Pin-Programmable Universal and Bandpass Filters

The MAX263/264 and MAX267/268 CMOS switched-capacitor active filters are designed for precision ...
  • 32-Step Center Frequency Control
  • 128-Step Q Control
  • Independent Q and f0 Programming
  • Guaranteed Clock to f0 Ratio—1% (A grade)
  • 75kHz f0 Range (MAX264/268)
  • Single +5V and ±5V Operation
MAX262 Microprocessor Programmable Universal Active Filters

MAX262 Microprocessor Programmable Universal Active Filters

The MAX260/MAX261/MAX262 CMOS dual second-order universal switched-capacitor active filters allo...
  • Filter Design Software Available
  • Microprocessor Interface
  • 64-Step Center Frequency Control
  • 128-Step Q Control
  • Independent Q and f0 Programming
  • Guaranteed Clock to f0 Ratio-1% (A grade)
  • 75kHz f0 Range (MAX262)
  • Single +5V and ±5V Operation
MAX260 Microprocessor Programmable Universal Active Filters

MAX260 Microprocessor Programmable Universal Active Filters

The MAX260/MAX261/MAX262 CMOS dual second-order universal switched-capacitor active filters allo...
  • Filter Design Software Available
  • Microprocessor Interface
  • 64-Step Center Frequency Control
  • 128-Step Q Control
  • Independent Q and f0 Programming
  • Guaranteed Clock to f0 Ratio-1% (A grade)
  • 75kHz f0 Range (MAX262)
  • Single +5V and ±5V Operation
MAX261 Microprocessor Programmable Universal Active Filters

MAX261 Microprocessor Programmable Universal Active Filters

The MAX260/MAX261/MAX262 CMOS dual second-order universal switched-capacitor active filters allo...
  • Filter Design Software Available
  • Microprocessor Interface
  • 64-Step Center Frequency Control
  • 128-Step Q Control
  • Independent Q and f0 Programming
  • Guaranteed Clock to f0 Ratio-1% (A grade)
  • 75kHz f0 Range (MAX262)
  • Single +5V and ±5V Operation
MAX7423 5th-Order, Lowpass, Switched-Capacitor Filters

MAX7423 5th-Order, Lowpass, Switched-Capacitor Filters

The MAX7418–MAX7425 5th-order, low-pass, switched-capacitor filters (SCFs) operate from a single...
  • 5th-Order, Lowpass Filters
    • Elliptic Response (MAX7418/MAX7421/MAX7422/MAX7425)
    • Bessel Response (MAX7419/MAX7423)
    • Butterworth Response (MAX7420/MAX7424)
  • Clock-Turnable Corner Frequency (1Hz to 45kHz)
  • Single-Supply Operation
    • +5V (MAX7418–MAX7421)
    • +3V (MAX7422–MAX7425)
  • Low Power
    • 3mA (Operating Mode)
    • 0.2µA (Shutdown Mode)
  • Available in 8-Pin µMAX® Package
  • Low Output Offset: ±4mV