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DS4420

I²C Programmable Gain Amplifier for Audio Applications

Fully Differential, Programmable-Gain Amplifier for Audio Applications

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

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 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.

Data Sheet

Download	Rev 0	(PDF, 152kB)
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Key Features

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

Applications/Uses

Audio Volume Control
Microphone Gain Control
Telephone Headsets

Key Specifications:

Digital Potentiometers

Part Number

Taper

Control Interface

Wiper Memory

Steps

I_CC @5V
(µA)

Smallest Available Pckg.
(mm²)

Budgetary Price

max

max w/pins

See Notes

DS4420

Log

2-Wire Addressable

Volatile

3000

9.6

$1.39 @1k

See All Digital Potentiometers (129)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Programmable Gain Amplifiers

Part Number

Interface Type

A_V
(V/V)

Gain Error
(%)

V_SUPPLY
(V)

Shutdown Mode Supply Current
(µA)

Supply Current
(µA)

Oper. Temp.
(°C)

Package/Pins

Budgetary Price

max

min

max

typ

max

See Notes

DS4420

I²C

0.0178 to 17.78

4.5

5.5

140

1700

3000

-20 to +70

TDFN-EP/14

$1.39 @1k

See All Programmable Gain Amplifiers (2)

Diagram

Typical Operating Circuit

Product Guides

Amplifiers and Comparators (PDF)

Audio (PDF)

Signal Chain (PDF)

Reliability Reports

Reliability Report:

DS4420.pdf

Software/Models

none

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS4420N+			Active	TDFN-EP;14 pin;9.6 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
DS4420N+T&R			Active	TDFN-EP;14 pin;9.6 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
DS4420N-C01+			Active	TDFN-EP;14 pin;9.6 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
DS4420N-C01+T			Active	TDFN-EP;14 pin;9.6 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

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* 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.

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Rev 0; 2006-10-17
This page last modified: 2007-02-06