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
* 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
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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*
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. 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.
