MAX9812 datasheet(2/11 Pages) DALLAS

2 / 11 page

Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain

Microphone Amplifiers with Integrated Bias

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VCC = 3.3V, IBIAS = 500µA (MAX9812L/MAX9813L), VCC = 5V, IBIAS = 800µA (MAX9812H/MAX9813H), GND = 0V, RL = open,

SHDN = VCC, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25

°C.) (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.

(All voltages referenced to GND)

VCC ........................................................................-0.3V to +6.0V

All Other Pins..............................................-0.3V to (VCC + 0.3V)

Continuous Current (IN, SHDN, IN1, IN2, IN1/IN2)...........

±20mA

OUT, BIAS Short-Circuit Duration (to GND or VCC) ...Continuous

Continuous Power Dissipation (TA = +70

°C)

6-Pin SC70 (derate 3.1mW/

°C above +70°C)..............245mW

8-Pin SOT23 (derate 8.9mw/

°C above +70°C) ............714mW

Operating Temperature Range ...........................-40

°C to +85°C

Storage Temperature Range .............................-65

°C to +150°C

Junction Temperature ......................................................+150

°C

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

°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

GENERAL

MAX9812L/MAX9813L

2.7

3.6

Supply Voltage Range

VCC

MAX9812H/MAX9813H

Inferred from

PSRR test

4.5

5.5

Supply Current

ICC

IBIAS = 0

230

400

µA

Shutdown Supply Current

ICC_SHDN

SHDN = GND

0.1

µA

MAX9812L/MAX9813L

1.35

1.5

1.65

Amplifier Output Bias Voltage

VOUT_DC

MAX9812H/MAX9813H

2.25

2.5

2.75

Input Resistance

RIN

Ω

Voltage Gain

100

f = 217Hz

100

f = 1kHz

100

Power-Supply Rejection Ratio

PSRROUT

Input referred, TA = +25°C

f = 10kHz

RL = 10k

Ω to VCC/2

VCC -

0.1

VOH

RL = 1k

Ω to VCC/2

VCC -

0.25V

VCC -

0.1V

RL = 10k

Ω to VCC/2

0.1

Output Voltage Swing

VOL

RL = 1k

Ω to VCC/2

0.1

0.25

Output Short-Circuit Current

IOUT_SC

Sinking or sourcing

Small-Signal -3dB Bandwidth

VOUT = 10mVP-P

400

kHz

Output Capacitive-Load Stability

No sustained oscillations

Output Impedance

ZOUT

f = 1kHz

0.5

Ω

Output Slew Rate

VOUT = 1V step

V/µs

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