(VDD = VCPVDD = +5V, VSGND = VPGND = 0V, SHDN = VDD, C1 = C2 = 1μF, RL = ∞, resistive load referenced to ground, for

MAX13330 gain = -1.5V/V (internally set), for MAX13331 gain = -1.5V/V (RIN = 30kΩ, RFB = 45kΩ), TA = TJ = -40°C to +105°C, unless

otherwise noted. Typical values are at TA = +25°C, unless otherwise noted.) (Note 2)

Note 2: All devices are 100% tested at TA = +25°C; specifications over temperature limits are guaranteed by design and QA

sampling.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Short-to-SGND Threshold

130

mA

Short-to-VBAT Threshold

130

mA

AMPLIFIERS

Voltage Gain

AV

MAX13330

-1.48

-1.5

-1.52

V/V

Gain Matching

MAX13330

±0.2

%

Input Offset Voltage

±1

±6

mV

Input Bias Current

VIN_ = 0V

50

nA

Input Impedance

RIN

MAX13330

20

30

kΩ

Power-Supply Rejection Ratio

PSRR

DC, VDD = 4.0V to 5.5V, input referred

-86

dB

f =1kHz, VRIPPLE = 100mVP-P

-80

Output Power Per Channel

POUT_

THD+N = 1%;

VDD = VCPVDD = 5V;

fIN = 1kHz

RL = 8Ω

75

mW

RL = 16Ω

120

RL = 32Ω

135

Output Voltage

VOUT_

RL = 1kΩ

2

VRMS

Output Impedance in Shutdown

14

kΩ

Total Harmonic Distortion Plus

Noise

THD+N

RL = 16Ω, POUT = 100mW, f = 1kHz

0.03

%

RL = 32Ω, POUT = 125mW, f = 1kHz

0.01

%

Signal-to-Noise Ratio

SNR

RL = 32Ω, POUT = 135mW, f = 22Hz to 22kHz

100

dB

Noise

Vn

f = 22Hz to 22kHz bandwidth; inputs

AC-coupled to grounded

6

µVRMS

Slew Rate

SR

0.3

V/µs

Maximum Capacitive Load

CL

No sustained oscillation

3000

pF

Click-and-Pop Level

KCP

Peak voltage, TA =

+25°C, A-weighted,

32 samples per

second; Inputs AC-

coupled to ground

Into shutdown

-80

dB

Out of shutdown

-60

Charge-Pump Oscillator

Frequency

fOSC

1.9

2.2

2.5

MHz

Crosstalk

RL = 32Ω, VIN = 200mVP-P, f = 10kHz

-75

dB

Thermal-Shutdown Temperature

+155

°C

Thermal-Shutdown Hysteresis

10

°C

ESD Protection

Human Body Model (OUTR and OUTL)

±15

kV

MAX13330/MAX13331

Automotive DirectDrive Headphone Amplifiers

with Output Protection and Diagnostics

www.maximintegrated.com

Maxim Integrated │ 3

Electrical Characteristics (continued)