OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

MAX4466EXK-T

P1-P3P4-P6P7-P9P10-P12
General Description
The MAX4465–MAX4469 are micropower op amps opti-
mized for use as microphone preamplifiers. They pro-
vide the ideal combination of an optimized gain
bandwidth product vs. supply current, and low voltage
operation in ultra-small packages. The MAX4465/
MAX4467/MAX4469 are unity-gain stable and deliver a
200kHz gain bandwidth from only 24µA of supply cur-
rent. The MAX4466/MAX4468 are decompensated for a
minimum stable gain of +5V/V and provide a 600kHz
gain bandwidth product. In addition, these amplifiers
feature Rail-to-Rail
®
outputs, high A
VOL
,
plus excellent
power-supply rejection and common-mode rejection
ratios for operation in noisy environments.
The MAX4467/MAX4468 include a complete shutdown
mode. In shutdown, the amplifiers’ supply current is
reduced to 5nA and the bias current to the external
microphone is cut off for ultimate power savings. The
single MAX4465/MAX4466 are offered in the ultra-small
5-pin SC70 package, while the single with shutdown
MAX4467/MAX4468 and dual MAX4469 are available in
the space-saving 8-pin SOT23 package.
Applications
Microphone Preamplifiers
Hearing Aids
Cellular Phones
Voice-Recognition Systems
Digital Dictation Devices
Headsets
Portable Computing
Features
o +2.4V to +5.5V Supply Voltage Operation
o Versions with 5nA Complete Shutdown Available
(MAX4467/MAX4468)
o Excellent Power-Supply Rejection Ratio: 112dB
o Excellent Common-Mode Rejection Ratio: 126dB
o High A
VOL
: 125dB (R
L
= 100kΩ)
o Rail-to-Rail Outputs
o Low 24µA Quiescent Supply Current
o Gain Bandwidth Product:
200kHz (MAX4465/MAX4467/MAX4469)
600kHz A
V
≥ 5 (MAX4466/MAX4468)
o Available in Space-Saving Packages
5-Pin SC70 (MAX4465/MAX4466)
8-Pin SOT23 (MAX4467/MAX4468/MAX4469)
MAX4465–MAX4469
Low-Cost, Micropower, SC70/SOT23-8, Microphone
Preamplifiers with Complete Shutdown
19-1950; Rev 2; 6/12
1
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Ordering Information
PART TEMP RANGE PIN-PACKAGE
MAX4465EXK+T -40°C to +85°C 5 SC70
MAX4465EUK+T -40°C to +85°C 5 SOT23
MAX4466EXK+T -40°C to +85°C 5 SC70
MAX4466EUK+T -40°C to +85°C 5 SOT23
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Ordering Information continued at end of data sheet.
TOP VIEW
GND
OUT
IN-
1
+
5
V
CC
IN+
MAX4465
MAX4466
SC70/SOT23
2
3
4
Pin Configurations
Typical Operating Circuit
MAX4467
MAX4468
GND
MICROPHONE
CAPSULE
MAX4467/MAX4468 TYPICAL OPERATING CIRCUIT WITH
COMPLETE SHUTDOWN
R
BIAS
R
FB
V
CC
OUT
IN+
IN-
SHDN
C
BIAS
R
BIAS
R
DC
MIC_BIAS
R
IN
C
IN
C
BYPASS
R
DC
Pin Configurations continued at end of data sheet.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
MAX4465–MAX4469
Low-Cost, Micropower, SC70/SOT23-8, Microphone
Preamplifiers with Complete Shutdown
2
ABSOLUTE MAXIMUM RATINGS
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)................................................+6V
All Other Pins to GND.................................-0.3V to (V
CC
+ 0.3V)
Output Short-Circuit Duration
OUT Shorted to GND or V
CC
.................................Continuous
Continuous Power Dissipation (T
A
= +70°C)
5-Pin SC70 (derate 2.5mW/°C above +70°C) .............200mW
5-Pin SOT23 (derate 7.1mW/°C above +70°C) ...........571mW
8-Pin SOT23 (derate 5.3mW/°C above +70°C) ...........421mW
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
ELECTRICAL CHARACTERISTICS
(V
CC
= +5V, V
CM
= 0V, V
OUT
= V
CC
/2, R
L
= ∞ to V
CC
/2, SHDN = GND (MAX4467/MAX4468 only). T
A
= T
MIN
to T
MAX
, unless other-
wise noted. Typical values specified at T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage Range V
CC
Inferred from PSRR test 2.4 5.5 V
T
A
= +25°C2448
Supply Current
(Per Amplifier)
I
CC
T
A
= T
MIN
to T
MAX
60
µA
Supply Current in Shutdown I
SHDN
SHDN = V
CC
(Note 2) 5 50 nA
Input Offset Voltage V
OS
±1 ±5mV
Input Bias Current I
B
V
CM
= -0.1V ±2.5 ±100 nA
Input Offset Current Range I
OS
V
CM
= -0.1V ±1 ±15 nA
Input Common-Mode Range V
CM
Inferred from CMRR test -0.1 V
CC
- 0.1 V
C om m on- M od e Rej ecti on Rati o CMRR -0.1V ≤ V
CM
≤ V
CC
- 1V 80 126 dB
2.4V ≤ V
CC
≤ 5.5V 80 112
MAX4465/MAX4467/MAX4469, f = 3.4kHz 75Power-Supply Rejection Ratio PSRR
MAX4466/MAX4468, f = 3.4kHz 80
dB
R
L
= 100kΩ to V
CC
/2,
0.05V ≤ V
OUT
≤ V
CC
- 0.05V
125
Open-Loop Gain A
VOL
R
L
= 10kΩ to V
CC
/2,
0.1V ≤ V
OUT
≤ V
CC
- 0.1V
80 95
dB
R
L
= 100kΩ 10
Output Voltage Swing High V
OH
I
V
CC
- V
OH
I
R
L
= 10kΩ 16 50
mV
R
L
= 100kΩ 10
Output Voltage Swing Low V
OL
R
L
= 10kΩ 14 50
mV
Output Short-Circuit Current To either supply rail 15 mA
Output Leakage Current
in Shutdown
SHDN = V
CC
, 0 ≤ V
OUT
≤ V
CC
;
(Notes 2, 3)
±0.5 ±100 nA
SHDN Logic Low V
IL
(Note 2) V
CC
✕
0.3 V
SHDN Logic High V
IH
(Note 2) V
CC
✕
0.7 V
SHDN Input Current (Note 2) 2 25 nA
MAX4465/MAX4467/MAX4469 200
Gain Bandwidth Product GBWP
MAX4466/MAX4468 600
kHz
MAX4465–MAX4469
Low-Cost, Micropower, SC70/SOT23-8, Microphone
Preamplifiers with Complete Shutdown
3
-140
-120
-100
-80
-60
-40
-20
0
20
40
60
80
100
120
140
MAX4465/MAX4467/MAX4469
GAIN AND PHASE vs. FREQUENCY (NO LOAD)
FREQUENCY (Hz)
10.1 1k 10k 100k10 100 1M
GAIN (dB)/PHASE (DEGREES)
MAX4465-69 toc01
-160
-140
-120
-100
-80
-60
-40
0
-20
20
40
60
80
100
120
140
MAX4466/MAX4468 GAIN AND PHASE
vs. FREQUENCY (NO LOAD)
FREQUENCY (Hz)
GAIN (dB)/PHASE (DEGREES)
MAX4465-69 toc02
1 1k 10k 100k10 100 1M
-140
-120
-100
-80
-60
-40
-20
0
20
40
60
80
100
120
140
MAX4465/MAX4467/MAX4469
GAIN AND PHASE vs. FREQUENCY (C
L
= 100pF)
FREQUENCY (Hz)
10.1 1k 10k 100k10 100 1M
GAIN (dB)/PHASE (DEGREES)
MAX4465-69 toc03
Note 1: All specifications are 100% production tested at T
A
= +25°C. All temperature limits are guaranteed by design.
Note 2: Shutdown mode is available only on the MAX4467/MAX4468.
Note 3: External feedback networks not considered.
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5V, V
CM
= 0V, V
OUT
= V
CC
/2, R
L
= ∞ to V
CC
/2, SHDN = GND (MAX4467/MAX4468 only), T
A
= T
MIN
to T
MAX
, unless other-
wise noted. Typical values specified at T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Channel-to-Channel Isolation MAX4469 only, f = 1kHz 85 dB
Phase Margin Ø
M
R
L
= 100kΩ 70
d egr ees
Gain Margin R
L
= 100kΩ 20 dB
MAX4465/MAX4467/
MAX4469,
A
V
= +1
45
Slew Rate SR Output step = 4V
MAX4466/MAX4468,
A
V
= +5
300
mV/µs
Input Noise Voltage Density e
n
f = 1kHz 80 nV/√Hz
M AX 4465/M AX 4467/
M AX 4469
0.02
Total Harmonic Distortion THD
f = 1kHz, R
L
= 10kΩ,
V
OUT
= 2Vp-p
MAX4466/MAX4468 0.03
%
MAX4465/MAX4467/MAX4469, A
V
= +1 100
Capacitive Load Stability C
LOAD
MAX4466/MAX4468, A
V
= +5 100
pF
SHDN Delay Time t
SHDN
(Note 2) 1 µs
Enable Delay Time t
EN
(Note 2) 50 µs
Power-On Time t
ON
(Note 2) 40 µs
Bias Switch On-Resistance R
S
I
S
= 5mA (Note 2) 20 500 Ω
Typical Operating Characteristics
(V
CC
= +5V, V
CM
= 0V, V
OUT
= V
CC
/2, R
L
= 100kΩ to V
CC
/2, SHDN = GND (MAX4467/MAX4468 only), T
A
= +25°C, unless otherwise
noted.)
P1-P3P4-P6P7-P9P10-P12

MAX4466EXK-T

Mfr. #:
Buy MAX4466EXK-T
Manufacturer:
Maxim Integrated
Description:
Microphone Preamplifiers Low-Cost, Micropower, SC70/SOT23 Microphone Preamplifier w/ Complete Shutdown
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet