Features and Benefits
- Differential Inputs and Outputs
- -35dB to +25dB Adjustable Gain
- Low Output Noise
- Low Distortion Driving Into a 50Ω 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
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 50Ω. 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.
- Audio Volume Control
- Microphone Gain Control
- Telephone Headsets
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
DS4420 Reliability Data1/12/2023
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
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Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
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