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MAX4063ETE+

P1-P3P4-P6P7-P9P10-P12P13-P14
General Description
The MAX4063 is a differential-input microphone preampli-
fier optimized for high-performance, portable applica-
tions. The device features two selectable inputs,
differential outputs, adjustable gain, an integrated low-
noise bias source, and a low-power shutdown mode.
Two input paths provide both differential and single-
ended microphone sensing. The high-noise rejection of
the differential input is ideally suited to an internal micro-
phone where system noise and long-run PC board traces
can degrade low-level signals. The single-ended input
provides a simple connection to an external microphone.
The differential and single-ended inputs have indepen-
dent, adjustable gains that are set with a single external
resistor. Differential outputs provide a full-scale signal of
up to 6V
P-P
from a single 3V supply, optimizing the
dynamic range of the amplified signal. A complete shut-
down mode reduces the supply current to only 0.3µA
and disables the microphone bias for the ultimate in
power savings.
The MAX4063 operates from 2.4V to 5.5V and is specified
over the extended -40°C to +85°C operating temperature
range. The MAX4063 is available in both 16-pin TQFN
(4mm x 4mm x 0.8mm) and 14-pin TSSOP packages.
Applications
Features
o 2.4V to 5.5V Single-Supply Operation
o Differential Inputs and Outputs
o Adjustable Gain
o High 95dB PSRR
o High 79dB CMRR
o Low-Noise, Integrated Microphone Bias
o 750µA Supply Current
o 0.3µA Shutdown Current
o ±4kV ESD Protection (AUX_IN)
o THD+N: 0.05% at 1kHz
o Available in Space-Saving Packages
14-Pin TSSOP
16-Pin TQFN (4mm x 4mm x 0.8mm)
MAX4063
Differential Microphone Preamplifier with
Internal Bias and Complete Shutdown
________________________________________________________________
Maxim Integrated Products
1
IN-
IN+
BIAS
10
9
5
AUX_IN
12
SHDN
3
6
V
BIAS
V
CC
2.4V TO 5.5V
MAX4063
INT/AUX
2
OUT 8
OUT
4
ADJ
7
R
G
GND
11
1
14
G1 G2
14
13
12
11
10
9
8
1
2
3
4
5
6
7
G1
N.C.
AUX_IN
GNDOUT
SHDN
INT/AUX
G2
MAX4063
IN-
IN+
OUTADJ
V
CC
BIAS
TSSOP
+
Typical Operating Circuit
Ordering Information
19-2753; Rev 1; 6/11
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Notebook Audio Systems
Tablet PCs
PDA Audio Systems
Signal Conditioning
PART TEMP RANGE PIN-PACKAGE
MAX4063ETE+ -40°C to +85°C 16 TQFN-EP*
MAX4063EUD+ -40°C to +85°C 14 TSSOP
Pin Configurations
Pin Configurations continued at end of data sheet.
*EP = Exposed pad.
+
Denotes a lead(pB)-free/RoHS-compliant package.
MAX4063
Differential Microphone Preamplifier with
Internal Bias and Complete Shutdown
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= 3V, V
GND
= 0V, V
SHDN
= V
CC,
V
INT/AUX
= 0V, R
G
= 11.11kΩ, R
L
= 100kΩ to 1.5V, R
BIAS
= ∞, V
OUT
is measured between
OUT and OUT. T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Notes 1 and 2)
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.
Supply Voltage (V
CC
to GND). .................................-0.3V to +6V
Any Other Pin to GND ................................-0.3V to (V
CC
+ 0.3V)
Duration of Short Circuit to GND or V
CC
....................Continuous
Continuous Input Current (any pin) ................................ ±10mA
Continuous Power Dissipation (T
A
= +70°C)
14-Pin TSSOP (derate 10.0mW/°C above +70°C) .....796.8mW
16-Pin TQFN (derate 25.0mW/°C above +70°C) ........2000mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage Range V
CC
Inferred from PSRR test 2.4 5.5 V
Supply Current I
CC
0.75 1.1 mA
Output Common-Mode Voltage V
OCM
1.25 1.5 1.75 V
Slew Rate SR A
V
= 20V/V ±1 V/µs
Supply Current in Shutdown I
SHDN
V
SHDN
= 0V 0.001 1 µA
To GND 30
Output Short-Circuit Current I
SC
To V
CC
30
mA
DIFFERENTIAL INPUT (V
INT/AUX
= 0V)
Input Offset Voltage V
OS
T
A
= +25°C ±1mV
Common-Mode Input Voltage Range V
CM
Inferred from CMRR test 1 2 V
Maximum Differential Input Voltage V
DIFFMAX
A
V
= 2V/V 1 V
Small-Signal Bandwidth BW
-3dB
600 kHz
Input Resistance R
IN
Either differential input 100 kΩ
Input Resistance Match R
MATCH
1%
A
V
= 20V/V, f = 1kHz 70
Input Noise-Voltage Density e
n
A
V
= 200V/V, f = 1kHz 12
nV/√Hz
RMS Output Noise Voltage V
NRMS
A
V
= 20V/V, BW = 22Hz to 22kHz 225 µV
RMS
Total Harmonic Distortion Plus Noise THD+N
A
V
= 20V/V, f = 1kHz, V
OUT
= 0.7V
RMS
,
BW = 22Hz to 22kHz
0.05 %
R
G
= open 2
R
G
= 11.11kΩ 19.2 20 20.8Differential Gain A
VDIFF
1V < V
CM
< 2V,
V
OUT
= 0.7V
RMS
R
G
= 1.01kΩ 200
V/V
Common-Mode Rejection Ratio CMRR V
CM
= 500mV
P-P
, f = 1kHz 70 dB
T
A
= +25°C 95
T
A
= T
MIN
- T
MAX
85Power-Supply Rejection Ratio PSRR
V
CC
= 5V ±100mV, f = 1kHz 86
dB
MAX4063
Differential Microphone Preamplifier with
Internal Bias and Complete Shutdown
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 3V, V
GND
= 0V, V
SHDN
= V
CC,
V
INT/AUX
= 0V, R
G
= 11.11kΩ, R
L
= 100kΩ to 1.5V, R
BIAS
= ∞, V
OUT
is measured between
OUT and OUT. T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Notes 1 and 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
AUXILIARY INPUT (INT/AUX = V
CC
)
Small-Signal Bandwidth BW
-3dB
230 kHz
Input Resistance R
IN
100 kΩ
Input Noise-Voltage Density e
n
f = 1kHz 200 nV/√Hz
RMS Output Noise Voltage V
NRMS
BW = 22Hz to 22kHz 620 µV
RMS
Total Harmonic Distortion Plus Noise THD+N f = 1kHz, BW = 22Hz to 22kHz 0.007 %
T
A
= +25°C 80 100
Power-Supply Rejection Ratio PSRR
T
A
= T
MIN
- T
MAX
72
dB
Voltage Gain A
VAUX
V
OUT
= 0.7V
RMS
-19.5 -20 -20.5 V/V
BIAS OUTPUT
Output Voltage V
OUT
I
BIAS
= 0.5mA to GND 2 2.2 V
Output Resistance R
OUT
I
BIAS
= 0.5mA to GND 16 30 Ω
Output Noise Voltage V
NRMS
I
BIAS
= 0.5mA to GND, BW = 22Hz to 22kHz 20 µV
RMS
I
BIAS
= 0.5mA to GND, V
CC
= 2.4V to 5.5V 60 74
Power-Supply Rejection Ratio PSRR
I
BIAS
= 0.5mA, V
CC
= 3V + 100mV
P-P
,
f = 1kHz
71
dB
DIGITAL INPUTS (SHDN and INT/AUX)
Input Leakage Current I
IN
V
IN
= 0V or V
CC
±1µA
Input Voltage High V
INH
0.7
✕
V
CC
V
Input Voltage Low V
INL
0.3
✕
V
CC
V
Shutdown Enable Time t
ON
10 µs
Shutdown Disable Time t
OFF
10 µs
Note 1: All specifications are 100% tested at T
A
= +25°C. Specification limits over temperature (T
A
= T
MIN
to T
MAX
) are guaranteed
by design, not production tested.
Note 2: MAX4063 requires a 1µF capacitor from BIAS to ground and a 10pF capacitor from ADJ to OUT.
P1-P3P4-P6P7-P9P10-P12P13-P14

MAX4063ETE+

Mfr. #:
Buy MAX4063ETE+
Manufacturer:
Maxim Integrated
Description:
Microphone Preamplifiers Differential Mic Preamplifier
Lifecycle:
New from this manufacturer.
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