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DS4420
I²C Programmable Gain Amplifier for Audio Applications

Fully Differential, Programmable-Gain Amplifier for Audio Applications


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 152kB)
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Description
The DS4420 is a fully differential, programmable gain amplifier for audio applications. It features a -35dB to +25dB gain range controlled by an I²C interface and it is optimized to drive loads as low as 50. The gain is adjustable in 3dB increments across the entire range. Three address inputs, used to select the I²C slave address, enable up to eight devices on a single bus.

The product operates from a single 5V supply over a -20°C to +70°C temperature range. It is offered in a 3mm x 3mm TDFN package.

Key Features   Applications/Uses
  • Differential Inputs and Outputs
  • -35dB to +25dB Adjustable Gain
  • Low Output Noise
  • Low Distortion Driving Into a 50 Load
  • 3dB Gain Steps Programmed Through I²C Interface
  • 5V Single Supply
  • 20kHz Bandwidth for All Gain Settings
  • Small 3mm x 3mm x 0.8mm TDFN Package
  • Up to Eight DS4420s can be Placed on the Same I²C Bus

 
  • Audio Volume Control
  • Microphone Gain Control
  • Telephone Headsets

    Key Specifications:  Digital Potentiometers
    Part Number Taper Control Interface Wiper Memory Steps ICC @5V
    (µA)
    Smallest Available Pckg.
    (mm2)
    Price
    max max w/pins See Notes
    DS4420  Log 2-Wire Addressable Volatile 20 3000 10 $1.32 @1k
    See All Digital Potentiometers (123)

    Key Specifications:  Programmable Gain Amplifiers
    Part Number Interface Type AV
    (V/V)
    Gain Error
    (%)
    VSUPPLY
    (V)
    VSUPPLY
    (V)
    Shutdown Mode Supply Current
    (µA)
    Supply Current
    (µA)
    Supply Current
    (µA)
    Oper. Temp.
    (°C)
    Package/Pins Price
    max min max max typ max See Notes
    DS4420  I2C 0.0178 to 17.78 10 4.5 5.5 140 1700 3000 -20 to +70
    TDFN-EP/14
    $1.32 @1k
    See All Programmable Gain Amplifiers (2)

    Diagram
    DS4420: Typical Operating Circuit
    Typical Operating Circuit

    Design Guides
  • Amplifiers and Sensors (PDF)
  • Audio (PDF)
  • Digital Potentiometers (PDF)

    Reliability Reports
  • Reliability Report: DS4420.pdf

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-1 of 1

    DS4420 Free
    Sample
    Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    DS4420N+T&R    
    Active TDFN-EP;14 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0062 (PDF)
    Use pkgcode/variation: T1433+1*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

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    2006-10-17
    This page last modified: 2007-02-06


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