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MAX4063

Differential Microphone Preamplifier with Internal Bias and Complete Shutdown

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX4063 is a differential-input microphone preamplifier optimized for high-performance, portable applications. The device features two selectable inputs, differential outputs, adjustable gain, an integrated low-noise bias source, and a low-power shutdown mode. Two input paths provide both differential and single-ended microphone sensing. The high-noise rejection of the differential input is ideally suited to an internal microphone where system noise and long-run PC board traces can degrade low-level signals. The single-ended input provides a simple connection to an external microphone.

The differential and single-ended inputs have independent, adjustable gains that are set with a single external resistor. Differential outputs provide a full-scale signal of up to 6V_P-P from a single 3V supply, optimizing the dynamic range of the amplified signal. A complete shutdown mode reduces the supply current to only 0.3µA and disables the microphone bias for the ultimate in power savings.

The MAX4063 operates from 2.4V to 5.5V and is specified over the extended -40°C to +85°C operating temperature range. The MAX4063 is available in both 16-pin TQFN (4mm x 4mm x 0.8mm) and 14-pin TSSOP packages.

Data Sheet

Download	Rev 1	(PDF, 228kB)
E-Mail

An evaluation kit is available: MAX4063EVKIT

Key Features

2.4V to 5.5V Single-Supply Operation
Differential Inputs and Outputs
Adjustable Gain
High 95dB PSRR
High 79dB CMRR
Low-Noise, Integrated Microphone Bias
750µA Supply Current
0.3µA Shutdown Current
±4kV ESD Protection (AUX_IN)
THD+N: 0.05% at 1kHz
Available in Space-Saving Packages
- 14-Pin TSSOP
- 16-Pin TQFN (4mm x 4mm x 0.8mm)

Applications/Uses

Notebook Audio Systems
PDA Audio Systems
Signal Conditioning
Tablet PCs

Key Specifications:

Microphone Amplifiers

Part Number

Channels

V_SUPPLY
(V)

I_Q
(mA)

THD+N
(%)

e_n
(nV/√Hz)

PSRR
(dB)

Input Type

Ext. Gain

Fxd. Gain
(|V/V|)

Microphone Bias

Budgetary Price

min

max

typ

min

max

See Notes

MAX4063

2.4

5.5

0.75

0.05

Differential with Aux

Yes

$0.50 @1k

See All Microphone Amplifiers (14)

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.

Diagram

Typical Operating Circuit

Product Guides

Amplifiers and Comparators (PDF)

Reliability Reports

Reliability Report:	MAX4063.pdf
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Software/Models

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Ordering Information

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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
MAX4063ETE			Active	TQFN;16 pin;16.8 mm² Outline Drawing:21-0139 (PDF) Land Pattern: 90-0070 (PDF) Use pkgcode/variation: T1644-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4063ETE+			Active	TQFN;16 pin;16.8 mm² Outline Drawing:21-0139 (PDF) Land Pattern: 90-0070 (PDF) Use pkgcode/variation: T1644+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4063ETE+T			Active	TQFN;16 pin;16.8 mm² Outline Drawing:21-0139 (PDF) Land Pattern: 90-0070 (PDF) Use pkgcode/variation: T1644+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4063ETE-T			Active	TQFN;16 pin;16.8 mm² Outline Drawing:21-0139 (PDF) Land Pattern: 90-0070 (PDF) Use pkgcode/variation: T1644-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4063EUD+			Active	TSSOP;14 pin;33.4 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0113 (PDF) Use pkgcode/variation: U14+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4063EUD+T			Active	TSSOP;14 pin;33.4 mm² Outline Drawing:21-0066 (PDF) Land Pattern: 90-0113 (PDF) Use pkgcode/variation: U14+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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Evaluation Kits

MAX4063EVKIT

Evaluation Kit for the MAX4063

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