MAX9812LEXT-T ,Tiny / Low-Cost / Single/Dual-Input / Fixed-Gain Microphone Amplifiers with Integrated Biasfeatures include very low 230µA supply current and a Internal Low-Noise Microphone Bias Supplytota ..
MAX9813LEKA-T ,Tiny / Low-Cost / Single/Dual-Input / Fixed-Gain Microphone Amplifiers with Integrated BiasELECTRICAL CHARACTERISTICS(V = 3.3V, I = 500µA (MAX9812L/MAX9813L), V = 5V, I = 800µA (MAX9812H/MAX ..
MAX9814ETD , Microphone Amplifier with AGC and Low-Noise Microphone Bias
MAX9814ETD , Microphone Amplifier with AGC and Low-Noise Microphone Bias
MAX9814ETD+T ,Microphone Amplifier with AGC and Low-Noise Microphone Biasfeatures a low-noisepreamplifier, variable gain amplifier (VGA), output♦ Programmable Attack Timeam ..
MAX981CPA ,Ultra-Low-Power / Open-Drain / Single/Dual-Supply ComparatorsELECTRICAL CHARACTERISTICS: 5V OPERATION(V+ = 5V, V- = GND = 0V, T = T to T , unless otherwise note ..
MB89475 ,F2MC-8L/Low Power/Low Voltage Microcontrollersapplications forconsumer product.2* : F MC stands for FUJITSU Flexible Microcontroller.n
MB89535A ,F2MC-8L/Low Power/Low Voltage MicrocontrollersFUJITSU SEMICONDUCTORDS07-12547-4EDATA SHEET8-bit Original Microcontroller CMOS2F MC-8L MB89530A Se ..
MB89535A ,F2MC-8L/Low Power/Low Voltage MicrocontrollersFEATURES• Wide range of package options• Two types of QFP packages (1 mm pitch, 0.65 mm pitch) • LQ ..
MB89537A , 8-bit Original Microcontroller CMOS, F-2MC-8L MB89530A Series
MB89537A , 8-bit Original Microcontroller CMOS, F-2MC-8L MB89530A Series
MB89537AC , 8-bit Original Microcontroller CMOS, F-2MC-8L MB89530A Series
MAX9812LEXT-T-MAX9813LEKA-T
Tiny / Low-Cost / Single/Dual-Input / Fixed-Gain Microphone Amplifiers with Integrated Bias
General DescriptionThe MAX9812/MAX9813 are single/dual-input, 20dB
fixed-gain microphone amplifiers. They offer tiny pack-
aging and a low-noise, integrated microphone bias,
making them ideal for portable audio applications such
as notebook computers, cell phones, and PDAs. These
amplifiers feature a 500kHz bandwidth, Rail-to-Rail®
outputs, an industry-leading 100dB power-supply rejec-
tion ratio, and a very low 0.015% THD+N. Power-saving
features include very low 230µA supply current and a
total shutdown mode that cuts the combined supply
and BIAS currents to only 100nA.
The MAX9812 is a single amplifier in a 6-pin SC70
package (2mm x 2.1mm) and the MAX9813 is a dual-
input amplifier available in an 8-pin SOT23 (3mm x
3mm) package. The MAX9813 has two inputs allowing
two microphones to be multiplexed to a single output.
The MAX9812/MAX9813 are offered in two grades. The
MAX9812L/MAX9813L are optimized for 3.3V supply
operation (2.7V to 3.6V). The MAX9812H/MAX9813H are
PC2001 compliant and are optimized for 5V operation
(4.5V to 5.5V). Both devices are specified over the -40°C
to +85°C extended operating temperature range.
ApplicationsNotebook Computers
PDAs
Smart Phones
Car Kit Adapters
Digital Cameras
Video Tape Recorders
FeaturesPC2001 Compliant100dB at 217Hz Power-Supply Rejection RatioVery Low 230µA Quiescent Current Low 0.015% THD+NAvailable in Two Versions
MAX9812L/MAX9813L—2.7V to 3.6V
MAX9812H/MAX9813H—4.5V to 5.5VInternal Low-Noise Microphone Bias Supply
2.3V for MAX9812L/MAX9813L
4.0V for MAX9812H/MAX9813H100nA Low-Power Shutdown ModeRail-to-Rail Outputs20dB Fixed GainAvailable in Tiny 6-Pin SC70 (2mm x 2.1mm) and
8-Pin SOT23 (3mm x 3mm) PackagesExtended Temperature Range -40°C to +85°C
MAX9812/MAX9813
Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain
Microphone Amplifiers with Integrated Bias
Ordering Information19-2840; Rev 0; 4/03
Pin Configurations, Selector Guide, and Typical Operating
Circuits appear at end of data sheet.
Simplified Block DiagramsRail-to-Rail is a trademark of Nippon Motorola Ltd.
MAX9812/MAX9813
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,
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
MAX9812/MAX9813
Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain
Microphone Amplifiers with Integrated Bias
ELECTRICAL CHARACTERISTICS (continued)(VCC= 3.3V, IBIAS= 500µA (MAX9812L/MAX9813L), VCC= 5V, IBIAS= 800µA (MAX9812H/MAX9813H), GND = 0V, RL= open,
Note 1:All specifications are 100% tested at TA= +25°C. Temperature limits are guaranteed by design.
MAX9812/MAX9813
Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain
Microphone Amplifiers with Integrated Bias
Typical Operating Characteristics(VCC= 3.3V (MAX9812L/MAX9813L), VCC= 5V (MAX9812H/MAX9813H), GND = 0V, RL= 10kΩto VCC/2, SHDN= VCC, TA= +25°C,
unless otherwise noted.)
MAX9812/MAX9813
Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain
Microphone Amplifiers with Integrated Bias
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT AMPLITUDEMAX9812 toc10
OUTPUT AMPLITUDE (VRMS)
THD+N (%)
10010k100k
FREQUENCY (Hz)
INPUT-REFERRED NOISE (nV/
INPUT-REFERRED NOISE vs. FREQUENCY
MAX9812 toc12
BIAS NOISE vs. FREQUENCYMAX9812 toc13
FREQUENCY (Hz)
BIAS NOISE (nV/
10k1k100
10,000100k
OFF-ISOLATION vs. FREQUENCYMAX9812 toc14
FREQUENCY (Hz)
CROSSTALK (dB)
10k1k100
-100100k
Typical Operating Characteristics (continued)(VCC= 3.3V (MAX9812L/MAX9813L), VCC= 5V (MAX9812H/MAX9813H), GND = 0V, RL= 10kΩto VCC/2, SHDN= VCC, TA= +25°C,
unless otherwise noted.)
MAX9812/MAX9813
Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain
Microphone Amplifiers with Integrated Bias2µs/div
OUTPUT OVERDRIVENOUT
1V/div
MAX9812 toc19
500mV/div
Typical Operating Characteristics (continued)(VCC= 3.3V (MAX9812L/MAX9813L), VCC= 5V (MAX9812H/MAX9813H), GND = 0V, RL= 10kΩto VCC/2, SHDN= VCC, TA= +25°C,
unless otherwise noted.)
