IC Phoenix
 
Home ›  MM87 > MAX9812HEXT+T-MAX9812LEXT+T,Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain Microphone Amplifiers with Integrated Bias
MAX9812HEXT+T-MAX9812LEXT+T Fast Delivery,Good Price
Part Number:
If you need More Quantity or Better Price,Welcom Any inquiry.
We available via phone +865332716050 Email
Partno Mfg Dc Qty AvailableDescript
MAX9812HEXT+TMAXIMN/a2100avaiTiny, Low-Cost, Single/Dual-Input, Fixed-Gain Microphone Amplifiers with Integrated Bias
MAX9812LEXT+T |MAX9812LEXTTMAXIMN/a1813avaiTiny, Low-Cost, Single/Dual-Input, Fixed-Gain Microphone Amplifiers with Integrated Bias


MAX9812HEXT+T ,Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain Microphone Amplifiers with Integrated BiasBlock DiagramsV VCC CCSHDN SHDNREFERENCE REFERENCEBIAS BIAS2.3V (L VERSION) 2.3V (L VERSION)4.0V (H ..
MAX9812LEXT+T ,Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain Microphone Amplifiers with Integrated Biasapplications such♦ Low 0.015% THD+Nas notebook computers, cell phones, and PDAs. These♦ Available i ..
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
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


MAX9812HEXT+T-MAX9812LEXT+T
Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain Microphone Amplifiers with Integrated Bias
General Description
The 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 out-
puts, an industry-leading 100dB power-supply rejection
ratio, and a very low 0.015% THD+N. Power-saving fea-
tures 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.
Applications

Notebook Computers
PDAs
Smart Phones
Digital Cameras
Video Tape Recorders
Features
PC2001 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 5.5V
Internal Low-Noise Microphone Bias Supply
2.3V for MAX9812L/MAX9813L
4.0V for MAX9812H/MAX9813H
100nA 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) Packages
Extended Temperature Range -40°C to +85°C
MAX9812/MAX9813
Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain
Microphone Amplifiers with Integrated Bias

Ordering Information
Pin Configurations, Selector Guide, and Typical Operating
Circuits appear at end of data sheet.
PARTTEMP RANGE
PIN-
PACKAGEVCC (V)
MAX9812LEXT+T -40°C to +85°C
6 SC70 2.7 to 3.6
MAX9812HEXT+T -40°C to +85°C 6 SC70 4.5 to 5.5
MAX9813LEKA+T -40°C to +85°C
8 SOT23 2.7 to 3.6
MAX9813HEKA+T -40°C to +85°C 8 SOT23 4.5 to 5.5
MAX9812
20dB
REFERENCE
2.3V (L VERSION)
4.0V (H VERSION)
BIAS
OUT
SHDN
VCC
GND
MAX9813
20dB
IN1/IN2
REFERENCE
2.3V (L VERSION)
4.0V (H VERSION)
IN2
IN1
BIAS
OUT
SHDN
VCC
GND
Simplified Block Diagrams

+Denotes a lead(Pb)-free/RoHS-compliant package.
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), VGND= 0V, RL= open,
SHDN= VCC, TA= TMINto 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)
SC70 (derate 3.1mW/°C above +70°C).......................245mW
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
Soldering Temperature (reflow).......................................+260°C
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
GENERAL

MAX9812L/MAX9813L2.73.6Supply Voltage RangeVCCMAX9812H/MAX9813H
Inferred from
PSRR test4.55.5V
Supply CurrentICCIBIAS = 0A230400µA
Shutdown Supply CurrentICC_SHDNSHDN = GND0.11µA
MAX9812L/MAX9813L1.351.51.65Amplifier Output Bias VoltageVOUT_DCMAX9812H/MAX9813H2.252.52.75V
Input ResistanceRIN85kΩ
Voltage GainAV192021dB90100
f = 217Hz100
f = 1kHz100Power-Supply Rejection RatioPSRROUTInput referred, TA = +25°C
f = 10kHz90
RL = 10kΩ to VCC/2VCC -
VOH
RL = 1kΩ to VCC/2VCC -
0.25V
VCC -
0.1V
RL = 10kΩ to VCC/20.1
Output Voltage Swing
VOLRL = 1kΩ to VCC/20.10.25
Output Short-Circuit CurrentIOUT_SCSinking or sourcing31224mA
Small-Signal -3dB BandwidthBWVOUT = 10mVP-P400kHz
Output Capacitive-Load StabilityCLNo sustained oscillations50pF
Output ImpedanceZOUTf = 1kHz0.5Ω
Output Slew RateSRVOUT = 1V step1V/µs
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), VGND= 0V, RL= open,
SHDN= VCC, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
Note 1:
All specifications are 100% tested at TA= +25°C. Temperature limits are guaranteed by design.
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS

Amplifier Input Voltage-Noise
DensityenInputs at AC GNDf = 1kHz40nV/√Hz
Total Integrated Input NoiseVn22Hz to 22kHz BW, inputs at AC GND5µVRMS
1kHz75Off-IsolationInput referred, MAX9813
only10kHz60dB
VOUT = 1VP-P
(L version)0.04
Total Harmonic Distortion Plus
NoiseTHD+N
f = 1kHz, RL = 10kΩ to
VCC/2, BW = 22Hz to
22kHzVOUT = 4VP-P
(H version)0.015
BIAS

MAX9812L/MAX9813L2.12.302.55Bias Output Voltage RangeVBIASMAX9812H/MAX9813H3.64.04.4V
Bias Output ResistanceRBIAS0.1Ω
DC, TA = +25°C7080
f = 217Hz80
f = 1kHz75
Power-Supply Rejection Ratio
(VCC to BIAS)PSRRBIAS
f = 10kHz55
BIAS Current LimitIBIAS_SCBIAS short to GND52250mA
BIAS Capacitive-Load StabilityCBIASNo sustained oscillations50pF
Total Integrated BIAS NoiseVn22Hz to 22kHz BW29µVRMS
DIGITAL INPUTS (SHDN, IN1/IN2)

Logic-Low ThresholdVIL0.8V
Logic-High ThresholdVIH2.0V
Logic Input CurrentIINSHDN = GND or VCC±1µA
Shutdown Enable TimetSHDN_ON95% of settled value10ms
Shutdown Disable TimetSHDN_OFF50µs
IN1/IN2 Select TimetSEL10µs
Typical Operating Characteristics
(VCC= 3.3V (MAX9812L/MAX9813L), VCC= 5V (MAX9812H/MAX9813H), VGND= 0V, RL= 10kΩto VCC/2, SHDN= VCC, TA= +25°C,
unless otherwise noted.)
-101k10k100100k1M10M
GAIN vs. FREQUENCY

MAX9812 toc01
FREQUENCY (Hz)
OUTPUT VOLTAGE GAIN (dB)
RL = OPEN
VOUT = 10mVP-P
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY

MAX9812 toc02
FREQUENCY (Hz)
PSRR (dB)
10k1k10010100k
VRIPPLE = 200mVP-P
INPUT REFERRED
POWER-SUPPLY REJECTION RATIO
(VCC TO BIAS) vs. FREQUENCY

MAX9812 toc03
FREQUENCY (Hz)
PSRR (V
TO BIAS) (dB)
10k1k100
-100100k
VRIPPLE = 200mVP-P
SUPPLY CURRENT
vs. TEMPERATURE
MAX9812 toc04
TEMPERATURE (°C)
SUPPLY CURRENT (MAX9812H
MAX9812L
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX9812 toc05
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (MAX9812L
MAX9812H
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX9812 toc06
TEMPERATURE (°C)
SHUTDOWN SUPPLY CURRENT (
VBIAS vs. TEMPERATURE
MAX9812 toc07
TEMPERATURE (°C)
BIAS
(L VERSION) (V)
BIAS
(H VERSION) (V)
MAX9812H
MAX9812L
VBIAS vs. IBIAS
MAX9812 toc08
IBIAS (mA)
BIAS
(L VERSION) (V)
MAX9812H
MAX9812L
BIAS
(H VERSION) (V)
MAX9812/MAX9813
Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain
Microphone Amplifiers with Integrated Bias
Typical Operating Characteristics (continued)
(VCC= 3.3V (MAX9812L/MAX9813L), VCC= 5V (MAX9812H/MAX9813H), VGND= 0V, RL= 10kΩto VCC/2, SHDN= VCC, TA= +25°C,
unless otherwise noted.)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT AMPLITUDE

MAX9812 toc10
OUTPUT AMPLITUDE (VRMS)
THD+N (%)
H VERSION
BW = 22Hz TO 22kHz
f = 10kHz
f = 1kHz
f = 100Hz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT AMPLITUDE

MAX9812 toc11
OUTPUT AMPLITUDE (VRMS)
THD+N (%)
f = 10kHz
f = 100Hz
f = 1kHz
L VERSION
BW = 22Hz TO 22kHz
10010k100k
FREQUENCY (Hz)
INPUT-REFERRED NOISE (nV/
INPUT-REFERRED NOISE vs. FREQUENCY
INPUTS AT AC GND
MAX9812 toc12
BIAS NOISE vs. FREQUENCY

MAX9812 toc13
FREQUENCY (Hz)
BIAS NOISE (nV/
10k1k100
10,000100k
OFF-ISOLATION vs. FREQUENCY

MAX9812 toc14
FREQUENCY (Hz)
CROSSTALK (dB)
10k1k100
-100100k
MAX9813
VIN1 = 100mVRMS
IN1 TO OUT WITH
IN2 SELECTED
MAX9812/MAX9813
Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain
Microphone Amplifiers with Integrated Bias
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY

MAX9812 toc09
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.001100k
VOUT = 1VRMS
RL = 2kΩ
BW = 22Hz TO 22kHz
VOUT = 1VRMS
RL = 10kΩ
MAX9812/MAX9813
Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain
Microphone Amplifiers with Integrated Bias

2μs/div
OUTPUT OVERDRIVEN

OUT
1V/div
MAX9812 toc19
500mV/div
Typical Operating Characteristics (continued)

(VCC= 3.3V (MAX9812L/MAX9813L), VCC= 5V (MAX9812H/MAX9813H), VGND= 0V, RL= 10kΩto VCC/2, SHDN= VCC, TA= +25°C,
unless otherwise noted.)
1ms/div
OUT-OF-SHUTDOWN WAVEFORM
INPUT UNCONNECTED

MAX9812 toc17
OUT
2V/div
BIAS
2V/div
SHDN
2V/div
100μs/div
MAX9813
SWITCHING BETWEEN TWO INPUTS

1V/div
MAX9812 toc18
2V/div
OUT
IN1/IN2
IN2 = 200mVP-P AT 20kHz
IN1 = 100mVP-P AT 10kHz
1μs/div
SMALL-SIGNAL PULSE RESPONSE
(RL = OPEN, CL = 10pF)

5mV/div
MAX9812 toc15
OUT
50mV/div
2μs/div
LARGE-SIGNAL PULSE RESPONSE
(RL = OPEN, CL = 10pF)

100mV/div
MAX9812 toc16
OUT
1V/div
ic,good price


TEL:86-533-2716050      FAX:86-533-2716790
   

©2020 IC PHOENIX CO.,LIMITED