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Data Sheet

FULL DATA SHEET (PDF, 512kB) Download   E-Mail

Description

The MAX9727 quad audio line driver with 3VRMS output is ideal for portable audio devices where board space and cost is at a premium. The device uses Maxim's DirectDrive™ architecture that produces a ground-referenced output from a single supply, eliminating the need for large DC-blocking capacitors and saving cost, board space, and component height. A high 100dB PSRR and low 0.0005% THD+N ensures clean, low-distortion amplification of the audio signal. Each MAX9727 amplifier can provide 3VRMS to a 1k load with less than 0.003% THD+N while operating from a single +5V supply. Each MAX9727 amplifier can provide 2VRMS to a 1k load with less than 0.003% THD+N while operating from a single +3.3V supply. A shutdown input disables the amplifiers and reduces quiescent current consumption to less than 100nA. The MAX9727 features Maxim's comprehensive click-and-pop suppression circuitry that reduces audible clicks and pops during startup and shutdown. The MAX9727 operates from a single 2.7V to 5.5V supply, consumes only 3mA of supply current per channel, and is specified over the -40°C to +85°C extended temperature range.

Key Features		Applications/Uses
2.7V to 5.5V Single-Supply Operation High 100dB PSRR 109dB Signal-to-Noise Ratio (SNR) Ground-Referenced Outputs No Audible Clicks or Pops at Power-Up/Down Differential Inputs 3VRMS into 1k Load at 5V 2VRMS into 1k Load at 3.3V 3mA Supply Current Per Channel Unity-Gain Stable 100nA Low-Power Shutdown Mode CLOAD Drive > 220pF ±8kV HBM ESD-Protected Outputs		A/V Receivers CD and DVD Players Consumer and Professional Audio Equipment Portable Audio Devices Set-Top Boxes Soundcards

Diagram

Typical Operating Circuit

Evaluation Kits

MAX9727EVKIT

Design Guides

Amplifiers/Comparators (PDF) Audio (PDF) Automotive (PDF)

Reliability Reports

Show FIT data for: MAX9727 Request Reliability Report for: MAX9727

Software/Models

none

Ordering Information
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. More: SeeFull Data Sheet or Part 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.
Devices: 1-2 of 2
MAX9727	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX9727EEP+			QSOP;20 pin; Dwg: 21-0055 (PDF) Use pkgcode/variation: E20+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9727EEP+T			QSOP;20 pin; Dwg: 21-0055 (PDF) Use pkgcode/variation: E20+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

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New Product Press Release 2005-11-22

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