MAX4467ESA+T [MAXIM]
Audio Preamplifier, 1 Channel(s), 1 Func, BICMOS, PDSO8, 0.150 INCH, SOIC-8;
| 型号： | MAX4467ESA+T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Audio Preamplifier, 1 Channel(s), 1 Func, BICMOS, PDSO8, 0.150 INCH, SOIC-8 放大器 信息通信管理 光电二极管 商用集成电路 |
| 文件： | 总14页 (文件大小：502K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-1950; Rev 1; 4/01
Low-Cost, Micropower, SC70/SOT23-8, Microphone
Preamplifiers with Complete Shutdown
General Description
Features
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
®
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
: 125dB (R = 100kΩ)
L
VOL
o Rail-to-Rail Outputs
feature Rail-to-Rail outputs, high A
plus excellent
VOL,
o Low 24µA Quiescent Supply Current
power-supply rejection and common-mode rejection
ratios for operation in noisy environments.
o Gain Bandwidth Product:
200kHz (MAX4465/MAX4467/MAX4469)
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.
600kHz A ≥ 5 (MAX4466/MAX4468)
V
o Available in Space-Saving Packages
5-Pin SC70 (MAX4465/MAX4466)
8-Pin SOT23 (MAX4467/MAX4468/MAX4469)
Ordering Information
PART
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
5 SC70-5
MAX4465EXK-T
MAX4465EUK-T
MAX4466EXK-T
MAX4466EUK-T
Applications
5 SOT23-5
5 SC70-5
Microphone Preamplifiers
Hearing Aids
5 SOT23-5
Cellular Phones
Ordering Information continued at end of data sheet.
Voice-Recognition Systems
Digital Dictation Devices
Headsets
Typical Operating Circuit
Portable Computing
V
CC
Pin Configurations
SHDN
R
BIAS
MIC_BIAS
IN+
TOP VIEW
C
R
BIAS
R
DC
1
2
3
5
V
CC
IN+
GND
IN-
R
BIAS
OUT
MAX4465
MAX4466
C
IN
IN
IN-
MAX4467
MAX4468
C
BYPASS
4
OUT
R
DC
GND
SC70/SOT23
MICROPHONE
CAPSULE
Pin Configurations continued at end of data sheet.
R
FB
MAX4467/MAX4468 TYPICAL OPERATING CIRCUIT WITH
COMPLETE SHUTDOWN
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
________________________________________________________________ Maxim Integrated Products
1
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.
Low-Cost, Micropower, SC70/SOT23-8, Microphone
Preamplifiers with Complete Shutdown
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
to GND)................................................+6V
8-Pin SOT23 (derate 5.3mW/°C above +70°C)...........421mW
8-Pin SO (derate 5.88mW/°C above +70°C)...............471mW
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
CC
All Other Pins to GND.................................-0.3V to (V
Output Short-Circuit Duration
+ 0.3V)
CC
OUT Shorted to GND or V .................................Continuous
CC
Continuous Power Dissipation (T = +70°C)
A
5-Pin SC70 (derate 2.5mW/°C above +70°C) .............200mW
5-Pin SOT23 (derate 7.1mW/°C above +70°C)...........571mW
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.
ELECTRICAL CHARACTERISTICS
(V
= +5V, V
= 0, V
= V /2, R = ∞ to V /2, SHDN = GND (MAX4467/MAX4468 only). T = T
to T
, unless otherwise
MAX
CC
CM
OUT
CC
L
CC
A
MIN
noted. Typical values specified at T = +25°C.) (Note 1)
A
PARAMETER
SYMBOL
CONDITIONS
Inferred from PSRR test
MIN
TYP
MAX
UNITS
Supply Voltage Range
V
2.4
5.5
48
60
50
5
V
CC
T
A
T
A
= +25°C
24
Supply Current
(Per Amplifier)
I
µA
CC
= T
to T
MAX
MIN
Supply Current in Shutdown
Input Offset Voltage
I
SHDN = V
(Note 2)
5
nA
mV
nA
nA
V
SHDN
CC
V
1
OS
Input Bias Current
I
V
V
= -0.1V
2.5
1
100
15
B
CM
CM
Input Offset Current Range
Input Common-Mode Range
I
= -0.1V
OS
V
Inferred from CMRR test
-0.1V ≤ V ≤ V - 1V
-0.1
80
V
- 0.1
CC
CM
Common-Mode Rejection Ratio CMRR
126
112
75
dB
CM
CC
2.4V ≤ V ≤ 5.5V
80
CC
Power-Supply Rejection Ratio
PSRR
MAX4465/MAX4467/MAX4469, f = 3.4kHz
MAX4466/MAX4468, f = 3.4kHz
dB
80
R = 100kΩ to V /2,
L
CC
125
95
0.05V ≤ V
≤ V
- 0.05V
OUT
CC
Open-Loop Gain
A
dB
VOL
R = 10kΩ to V /2,
L
CC
80
0.1V ≤ V
≤ V
CC
- 0.1V
OUT
R = 100kΩ
10
16
10
14
15
L
Output Voltage Swing High
V
V
- V
mV
I
OHI
OH
CC
R = 10kΩ
L
50
50
R = 100kΩ
L
Output Voltage Swing Low
Output Short-Circuit Current
V
mV
mA
nA
OL
R = 10kΩ
L
To either supply rail
Output Leakage Current
in Shutdown
SHDN = V , 0 ≤ V
(Notes 2, 3)
≤ V
CC
;
CC
OUT
0.5
100
✕
SHDN Logic Low
SHDN Logic High
SHDN Input Current
V
(Note 2)
V
CC
0.3
V
V
IL
✕
V
(Note 2)
V
0.7
IH
CC
(Note 2)
2
25
nA
MAX4465/MAX4467/MAX4469
MAX4466/MAX4468
200
600
Gain Bandwidth Product
GBWP
kHz
2
_______________________________________________________________________________________
Low-Cost, Micropower, SC70/SOT23-8, Microphone
Preamplifiers with Complete Shutdown
ELECTRICAL CHARACTERISTICS (continued)
(V
= +5V, V
= 0, V
= V /2, R = ∞ to V /2, SHDN = GND (MAX4467/MAX4468 only), T = T
to T
, unless otherwise
MAX
CC
CM
OUT
CC
CC
A
MIN
L
noted. Typical values specified at T = +25°C.) (Note 1)
A
PARAMETER
SYMBOL
CONDITIONS
MAX4469 only, f = 1kHz
R = 100kΩ
MIN
TYP
MAX
UNITS
Channel-to-Channel Isolation
85
dB
degrees
dB
Phase Margin
Gain Margin
Ø
70
20
M
L
R = 100kΩ
L
MAX4465/MAX4467/
MAX4469,
45
A
= +1
V
Slew Rate
SR
Output step = 4V
f = 1kHz
mV/µs
MAX4466/MAX4468,
= +5
300
80
A
V
Input Noise Voltage Density
Total Harmonic Distortion
e
nV/√Hz
n
MAX4465/MAX4467/
MAX4469
0.02
f = 1kHz, R = 10kΩ,
L
THD
%
V
= 2Vp-p
OUT
MAX4466/MAX4468
0.03
100
MAX4465/MAX4467/MAX4469, A = +1
V
Capacitive Load Stability
C
pF
LOAD
MAX4466/MAX4468, A = +5
V
100
1
SHDN Delay Time
Enable Delay Time
Power-On Time
t
(Note 2)
(Note 2)
(Note 2)
µs
µs
µs
Ω
SHDN
t
50
40
20
EN
t
ON
Bias Switch On-Resistance
R
I
S
= 5mA (Note 2)
500
S
Note 1: All specifications are 100% production tested at T = +25°C. All temperature limits are guaranteed by design.
A
Note 2: Shutdown mode is available only on the MAX4467/MAX4468.
Note 3: External feedback networks not considered.
Typical Operating Characteristics
(V
noted.)
= +5V, V
= 0, V
= V /2, R = 100kΩ to V /2, SHDN = GND (MAX4467/MAX4468 only), T = +25°C, unless otherwise
CC
CM
OUT
CC
L
CC
A
MAX4465/MAX4467/MAX4469
GAIN AND PHASE vs. FREQUENCY (NO LOAD)
MAX4465/MAX4467/MAX4469
MAX4466/MAX4468 GAIN AND PHASE
vs. FREQUENCY (NO LOAD)
GAIN AND PHASE vs. FREQUENCY (C = 100pF)
L
140
140
140
120
100
80
60
40
120
100
80
60
40
20
0
120
100
80
60
40
20
0
-20
-40
-60
-80
-100
-120
-140
20
0
-20
-40
-60
-80
-100
-120
-140
-160
-20
-40
-60
-80
-100
-120
-140
0.1
1
10 100 1k
10k 100k
1M
0.1
1
10 100
1k 10k 100k
1M
1
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
_______________________________________________________________________________________
3
Low-Cost, Micropower, SC70/SOT23-8, Microphone
Preamplifiers with Complete Shutdown
Typical Operating Characteristics (continued)
(V
noted.)
= +5V, V
= 0, V
= V /2, R = 100kΩ to V /2, SHDN = GND (MAX4467/MAX4468 only), T = +25°C, unless otherwise
CC
CM
OUT
CC
L
CC
A
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
SUPPLY CURRENT vs. TEMPERATURE
10,000
1000
100
10
27
26
25
24
23
22
V
= V
CC
SHDN
-10
-30
-50
-70
-90
-110
-130
1
10
100
1k
10k
100k
1M
-40
-15
10
35
60
85
-40
-15
10
35
60
85
FREQUENCY (Hz)
TEMPERATURE (°C)
TEMPERATURE (°C)
CHANNEL-TO-CHANNEL ISOLATION
vs. FREQUENCY
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
OUTPUT LEAKAGE CURRENT
vs. TEMPERATURE
0
-20
-40
-60
600
400
200
0
1000
100
10
V
V
= V
CC
SHDN
= V /2
OUT
CC
-200
-400
-600
1
-80
-100
0.1
0.1
1
10
100
1000
-40
-15
10
35
60
85
-40
-15
10
35
60
85
FREQUENCY (kHz)
TEMPERATURE (°C)
TEMPERATURE (°C)
COMMON-MODE REJECTION RATIO
vs. TEMPERATURE
OUTPUT VOLTAGE SWING LOW
vs. TEMPERATURE
OUTPUT VOLTAGE SWING HIGH
vs. TEMPERATURE
-100
-102
-104
-106
-108
-110
-112
-114
-116
-118
-120
5
4
3
5
4
3
2
1
0
2
1
0
-40
-15
10
35
60
85
-40
-15
10
35
60
85
-40
-15
10
35
60
85
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
4
_______________________________________________________________________________________
Low-Cost, Micropower, SC70/SOT23-8, Microphone
Preamplifiers with Complete Shutdown
Typical Operating Characteristics (continued)
(V
noted.)
= +5V, V
= 0, V
= V /2, R = 100kΩ to V /2, SHDN = GND (MAX4467/MAX4468 only), T = +25°C, unless otherwise
CC
CM
OUT
CC
L
CC
A
LARGE-SIGNAL GAIN
vs. TEMPERATURE
MINIMUM OPERATING VOLTAGE
vs. TEMPERATURE
LARGE-SIGNAL GAIN
vs. OUTPUT VOLTAGE
130
125
120
115
110
105
100
95
130
125
120
115
110
1.6
1.5
1.4
1.3
1.2
1.1
1.0
90
85
80
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
(V)
-40
-15
10
35
60
85
-40
-15
10
35
60
85
V
OUT
TEMPERATURE (°C)
TEMPERATURE (°C)
MAX4465/MAX4467/MAX4469
TOTAL HARMONIC DISTORTION PLUS NOISE
MAX4465/MAX4467/MAX4469
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. INPUT AMPLITUDE
MAX4466/MAX4468
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
vs. FREQUENCY
100
100
10
1
100
10
1
V
A
= 2Vp-p
= +10V/V
BW = 22kHz
OUT
V
V
A
= 2Vp-p
f = 1kHz
= +1V/V
BW = 122kHz
OUT
= +1V/V
A
V
V
BW = 22kHz
10
1
R = 10kΩ
L
R = 10kΩ
L
R = 10kΩ
L
0.1
0.1
0.1
R = 100kΩ
L
0.01
0.01
0.01
R = 100kΩ
L
R = 100kΩ
L
0.001
0.001
0.001
0
0.5
1.0
1.5
(Vp-p)
2.0
2.5
3.0
20
200
2k
20k
20
200
2k
20k
FREQUENCY (Hz)
V
FREQUENCY (Hz)
IN
MAX4466/MAX4468
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. INPUT AMPLITUDE
NONINVERTING SMALL-SIGNAL
TRANSIENT RESPONSE
NONINVERTING LARGE-SIGNAL
TRANSIENT RESPONSE
MAX4465-69 toc20
MAX4465-69 toc21
100
10
1
f = 1kHz
= +10V/V
A
V
BW = 22kHz
2V/div
50mV/div
R = 10kΩ
L
0.1
0.01
R = 100kΩ
L
0.001
20µs/div
200µs/div
0
0.05 0.10
0.15 0.20 0.25 0.30
V
IN
(Vp-p)
_______________________________________________________________________________________
5
Low-Cost, Micropower, SC70/SOT23-8, Microphone
Preamplifiers with Complete Shutdown
Typical Operating Characteristics (continued)
(V
noted.)
= +5V, V
= 0, V
= V /2, R = 100kΩ to V /2, SHDN = GND (MAX4467/MAX4468 only), T = +25°C, unless otherwise
CC
CM
OUT
CC
L
CC
A
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
e
vs. FREQUENCY
NOISE
40
30
A
VCL
= +1V/V
220
190
160
130
100
70
20
10
40
0
100
1k
10k
100k
1M
0
1
2
3
4
5
FREQUENCY (Hz)
SUPPLY VOLTAGE (V)
SINK CURRENT vs. OUTPUT VOLTAGE
SOURCE CURRENT vs. OUTPUT VOLTAGE
25
20
15
10
5
25
20
15
10
5
V
= +5V
CC
V
= +5V
CC
V
CC
= +2.4V
1.5
V
= +2.4V
1.5
CC
0
0
0
0.5
1.0
2.0
2.5
3.0
0
0.5
1.0
2.0
2.5
3.0
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
Pin Description
PIN
NAME
FUNCTION
MAX4465
MAX4466
MAX4467
MAX4468
MAX4469
4
6 (8)
OUT
Amplifier Output
—
—
—
—
1
OUTA
Amplifier Output A
External Microphone Bias Network Switch
Output
1 (4)
—
MIC_BIAS
3
1
2
2 (3)
3 (2)
4 (1)
—
—
4
IN-
IN+
Inverting Amplifier Input
Noninverting Amplifier Input
Ground
GND
( ) denotes S0T23 package of the MAX4467/MAX4468
6
_______________________________________________________________________________________
Low-Cost, Micropower, SC70/SOT23-8, Microphone
Preamplifiers with Complete Shutdown
Pin Description (continued)
PIN
NAME
FUNCTION
MAX4465
MAX4466
MAX4467
MAX4468
MAX4469
Positive Supply. Bypass with a 0.1µF capacitor to
GND.
5
7 (7)
8
V
CC
—
—
—
—
—
—
—
—
—
—
2
3
6
5
7
INA-
INA+
INB-
Inverting Amplifier Input A
Noninverting Amplifier Input A
Inverting Amplifier Input B
Noninverting Amplifier Input B
INB+
OUTB
Amplifier Output B
Active-High Shutdown Input. Connect to GND
—
—
8 (6)
5 (5)
—
—
SHDN
N.C.
for normal operation. Connect to V
shutdown. Do not leave floating.
for
CC
No Connection. Not internally connected.
( ) denotes SOT23 package of the MAX4467/MAX4468.
turn off the bias to the microphone when the device is in
shutdown. This can save several hundred microamps of
supply current, which can be significant in low power
applications. The MIC_BIAS pin provides a switched
Detailed Description
The MAX4465–MAX4469 are low-power, micropower op
amps designed to be used as microphone preampli-
fiers. These preamplifiers are an excellent choice for
noisy environments because of their high common-
mode rejection and excellent power-supply rejection
ratios. They operate from a single +2.4V to +5.5V sup-
ply.
version of V
to the bias components. Figure 3 shows
CC
some typical values.
Driving Capacitive Loads
Driving a capacitive load can cause instability in many
op amps, especially those with low quiescent current.
The MAX4465/MAX4467/MAX4469 are unity-gain stable
for a range of capacitive loads up to 100pF. Figure 4
shows the response of the MAX4465 with an excessive
capacitive load.
The MAX4465/MAX4467/MAX4469 are unity-gain stable
and deliver a 200kHz gain bandwidth from only 24µA of
supply current. The MAX4466/MAX4468 have a mini-
mum stable gain of +5V/V while providing a 600kHz
gain bandwidth product.
The MAX4467/MAX4468 feature a complete shutdown,
which is active-high, and a shutdown-controlled output
providing bias to the microphone. The MAX4465/
MAX4467/MAX4469 feature a slew rate suited to voice
channel applications. The MAX4466/MAX4468 can be
used for full-range audio, e.g., PC99 inputs.
Applications Information
Shutdown Mode
The MAX4467 and MAX4468 feature a low-power, com-
plete shutdown mode. When SHDN goes high, the sup-
ply current drops to 5nA, the output enters a high
impedance state and the bias current to the microphone
is switched off. Pull SHDN low to enable the amplifier.
Do not leave SHDN floating. Figure 5 shows the shut-
down waveform.
Rail-to-Rail Output Stage
The MAX4465–MAX4469 can drive a 10kΩ load and still
typically swing within 16mV of the supply rails. Figure 1
shows the output voltage swing of the MAX4465 config-
Common-Mode Rejection Ratio
A microphone preamplifier ideally only amplifies the sig-
nal present on its input and converts it to a voltage
appearing at the output. When used in noninverting
mode, there is a small output voltage fluctuation when
both inputs experience the same voltage change in the
ured with A = +10.
V
Switched Bias Supply
When used as a microphone amplifier for an electret
microphone, some form of DC bias for the microphone
is necessary. The MAX4467/MAX4468 have the ability to
_______________________________________________________________________________________
7
Low-Cost, Micropower, SC70/SOT23-8, Microphone
Preamplifiers with Complete Shutdown
common mode. The ratio of these voltages is called the
common-mode gain. The common-mode rejection ratio
is the ratio of differential-mode gain to common-mode
gain. The high CMRR properties of the
MAX4465–MAX4469 provide outstanding performances
when configured as a noninverting microphone pream-
plifier.
Power Supplies and Layout
The MAX4465–MAX4469 operate from a single +2.4V to
+5.5V power supply. Bypass the power supply with a
0.1µF capacitor to ground. Good layout techniques are
necessary for the MAX4465–MAX4469 family. To
decrease stray capacitance, minimize trace lengths by
placing external components close to the op amp’s
pins. Surface-mount components are recommended. In
systems where analog and digital grounds are avail-
able, the MAX4465–MAX4469 should be connected to
the analog ground.
Power-Up
The MAX4465–MAX4469 outputs typically settle within
1µs after power-up. Figure 6 shows the output voltage
on power-up.
Test Circuits/Timing Diagrams
1V/div
100µs/div
Figure 1. Rail-to-Rail Output Operation
+5V
+5V
2kΩ
2kΩ
V
= +5V
5
CC
0.1µF
MAX4466
1MΩ
1MΩ
IN+
IN-
1
3
OUT
0.01µF
4
ELECTRET
CAPSULE
10kΩ
1µF
2
GND
100kΩ
100pF
Figure 2. MAX4466 Typical Application Circuit
_______________________________________________________________________________________
8
Low-Cost, Micropower, SC70/SOT23-8, Microphone
Preamplifiers with Complete Shutdown
Test Circuits/Timing Diagrams (continued)
V
CC
SHDN
MIC_BIAS
1kΩ
100kΩ
IN+
IN-
10µF
OUT
2.2kΩ 100kΩ
0.01µF
MAX4468
MICROPHONE
INPUT
GND
0.1µF
200kΩ
3.5mm SOCKET
20kΩ
47pF
Figure 3. Bias Network Circuit
R
C
= 10kΩ
= 10pF
L
L
C = 2000pF
L
SHDN
2V/div
OUT
50mV/div
400µs/div
40µs/div
Figure 4. Small-Signal Transient Response with Excessive
Capacitive Load
Figure 5. MAX4467/MAX4468 Shutdown Waveform
_______________________________________________________________________________________
9
Low-Cost, Micropower, SC70/SOT23-8, Microphone
Preamplifiers with Complete Shutdown
Test Circuits/Timing
Diagrams (continued)
Chip Information
MAX4465/MAX4466 TRANSISTOR COUNT: 62
MAX4467/MAX4468 TRANSISTOR COUNT: 72
MAX4469 TRANSISTOR COUNT: 113
PROCESS: BiCMOS
V
CC
2V/div
Ordering Information (continued)
PART
MAX4467EKA-T
MAX4467ESA
MAX4468EKA-T
MAX4468ESA
MAX4469EKA-T
MAX4469ESA
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 SOT23-8
8 SO
OUT
1V/div
8 SOT23-8
8 SO
20µs/div
8 SOT23-8
8 SO
Figure 6. Power-Up/Power-Down Waveform
Selector Guide
EXTERNAL
MICROPHONE
SHDN
MINIMUM STABLE
GBWP
(kHz)
PART
PIN-PACKAGE
GAIN
MAX4465
MAX4466
MAX4467
MAX4468
MAX4469
+1
+5
+1
+5
+1
No
No
200
600
200
600
200
5 SC70/5 SOT23
5 SC70/5 SOT23
8 SOT23/8 SO
8 SOT23/8 SO
8 SOT23/8 SO
Yes
Yes
No
Pin Configurations (continued)
GND
1
2
3
4
8
7
6
5
OUT
1
8
7
6
5
SHDN
1
2
3
4
8
7
6
5
V
CC
MIC_BIAS
OUTA
INA-
INA+
GND
V
CC
IN+
IN-
2
V
CC
OUTB
INB-
IN-
IN+
MAX4467
MAX4468
MAX4467
MAX4468
MAX4469
SHDN
N.C.
3
OUT
N.C.
MIC_BIAS
4
GND
INB+
SOT23
SO
SOT23/SO
10 ______________________________________________________________________________________
Low-Cost, Micropower, SC70/SOT23-8, Microphone
Preamplifiers with Complete Shutdown
Package Information
______________________________________________________________________________________ 11
Low-Cost, Micropower, SC70/SOT23-8, Microphone
Preamplifiers with Complete Shutdown
Package Information (continued)
12 ______________________________________________________________________________________
Low-Cost, Micropower, SC70/SOT23-8, Microphone
Preamplifiers with Complete Shutdown
Package Information (continued)
______________________________________________________________________________________ 13
Low-Cost, Micropower, SC70/SOT23-8, Microphone
Preamplifiers with Complete Shutdown
Package Information (continued)
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2001 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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