MAX9722BEUE datasheet(2/21 Pages) MAXIM

Part #	MAX9722BEUE

Description	5V, Differential Input, DirectDrive, 130mW Stereo Headphone Amplifiers with Shutdown

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Manufacturer	MAXIM [Maxim Integrated Products]

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5V, Differential Input, DirectDrive, 130mW

Stereo Headphone Amplifiers with Shutdown

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(PVDD = SVDD = +5V, PGND = SGND = 0V, SHDN = SVDD, C1 = C2 = 1µF, RL = ∞, resistive load referenced to ground, for

MAX9722A gain = -1V/V (RIN = RF = 10kΩ), for MAX9722B gain = -2V/V (internally set), TA = -40°C to +85°C, unless otherwise noted.

Typical values are at TA = +25°C, unless otherwise noted.) (Note 1)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

PGND to SGND .....................................................-0.3V to +0.3V

PVDD and SVDD to PGND or SGND .........................-0.3V to +6V

PVSS and SVSS to PGND..........................................+0.3V to -6V

IN_ to SGND ................................(SVSS - 0.3V) to (SVDD + 0.3V)

OUT_ to PGND ......................................................-3.0V to +3.0V

SHDN to SGND..........................(SGND - 0.3V) to (SVDD + 0.3V)

C1P to PGND ...........................................-0.3V to (PVDD + 0.3V)

C1N to PGND............................................(SVSS - 0.3V) to +0.3V

PVDD to SVDD...........................................................................0V

PVSS to SVSS ............................................................................0V

Output Short Circuit to GND.......................................Continuous

Continuous Power Dissipation (TA = +70°C)

16-Pin Thin QFN (derate 14.7mW/°C above +70°C)....1176mW

16-Pin TSSOP (derate 9.4mW/°C above +70°C) .........755mW

Junction Temperature ......................................................+150°C

Operating Temperature Range............................-40°C to +85°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

GENERAL

Supply Voltage Range

VDD

Guaranteed by PSRR test

2.4

5.5

V

Quiescent Supply Current

IDD

RL =

∞

5.5

13

mA

Shutdown Supply Current

ISHDN

SHDN = SGND

0.1

2µA

SHDN Input Logic High

VIH

2V

SHDN Input Logic Low

VIL

0.8

V

SHDN Input Leakage Current

-1

+0.05

+1

µA

SHDN to Full Operation Time

tSON

80

µs

AMPLIFIERS

Voltage Gain

AV

MAX9722B (Note 2)

-1.98

-2

-2.02

V/V

Gain Matching

MAX9722B, between the right and left channels

±2%

Between IN_+ and IN_-, AC-coupled (MAX9722A)

±0.5

±2.5

Input Offset Voltage

VIS

Between IN_+ and IN_-, AC-coupled (MAX9722B)

±1.5

±5

mV

Input Bias Current

IBIAS

IN_+ and IN_-

50

nA

Input Impedance

RIN

MAX9722B, measured at IN_

10

14.4

20

k

Ω

Input Common-Mode Voltage

Range

VCM

-0.5

+0.7

V

Common-Mode Rejection Ratio

CMRR

Input referred, MAX9722A, TA = +25°C

-60

-70

dB

DC, VDD = 2.4V to 5.5V, input referred

-80

-90

f = 217Hz, 100mVP-P ripple, input referred

-80

Power-Supply Rejection Ratio

(Note 3)

PSRR

f = 10kHz, 100mVP-P ripple, input referred

-50

dB

RL = 16

Ω, THD+N = 1%, TA = +25°C

60

70

Output Power

POUT

RL = 32

Ω, THD+N = 1%, TA = +25°C

130

mW

Output Voltage

VOUT

RL = 1k

Ω

2

VRMS

Output Impedance in Shutdown

10

k

Ω

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