Datasheet

MAX4060/MAX4061/MAX4062
Differential Microphone Preamplifiers with
Internal Bias and Complete Shutdown
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 3V for MAX4061/MAX4062, V
CC
= 5V for MAX4060, V
GND
= 0V, V
SHDN
= V
CC
, V
INT/AUX
= 0V, R
G
= 11.11kΩ,
R
L
= 100kΩ to 1.5V, R
BIAS
= ∞, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Total Harmonic Distortion
Plus Noise
THD+N
A
V
= 10V/V, f = 1kHz, V
OUT
= 0.7V
RMS
,
BW = 22Hz to 22kHz
0.04
%
R
G
= open 1
1.13
1.3
R
G
= 11.11kΩ
9.6
10
10.4
1V < V
CM
< 2V,
V
OUT
= 0.7V
RMS
,
MAX4061/MAX4062
R
G
= 1.01kΩ
96 100 104
Differential Gain A
VDIFF
1V < V
CM
< 2V, V
OUT
= 0.7V
RMS
, MAX4060
9.6 10.0 10.4
V/V
Common-Mode Rejection Ratio CMRR V
CM
= 500mV
P-P
, f = 1kHz 70 dB
T
A
= +25°C
72
89
T
A
= T
MIN
to T
MAX
60
Power-Supply Rejection Ratio PSRR
V
CC
= 5V ±100mV, f = 1kHz 86
dB
AUXILIARY INPUT (MAX4060/MAX4062, INT/AUX = V
CC
)
Small-Signal Bandwidth
BW
-3dB
200
kHz
Input Resistance R
IN
100
kΩ
Input Noise-Voltage Density e
n
f = 1kHz 45
nV/√Hz
RMS Output Noise Voltage V
NRMS
BW = 22Hz to 22kHz
385
μV
RMS
Total Harmonic Distortion
Plus Noise
THD+N
f = 1kHz, BW = 22Hz to 22kHz
0.05
%
T
A
= +25°C
65
90
Power-Supply Rejection Ratio PSRR
T
A
= T
MIN
- T
MAX
50
dB
Voltage Gain A
VAUX
V
OUT
= 0.7V
RMS
-10.7 -10 -9.3
V/V
BIAS OUTPUT (MAX4060/MAX4062)
I
BIAS
= 0.8mA to GND, MAX4060 2
2.2
Output Voltage V
OUT
I
BIAS
= 0.5mA to GND, MAX4062 2
2.2
V
I
BIAS
= 0.8mA to GND, MAX4060
(T
A
= +25°C)
2
2.5
kΩ
Output Resistance R
OUT
I
BIAS
= 0.5mA to GND, MAX4062
(T
A
= +25°C)
22 40 Ω
I
BIAS
= 0.8mA to GND, BW = 22Hz to
22kHz, MAX4060
50
Output Noise Voltage V
NRMS
I
BIAS
= 0.5mA to GND, BW = 22Hz to
22kHz, MAX4062
20
μV
RMS