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參數資料
| 型號： | MAX4469ESA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | Low-Cost, Micropower, SC70/SOT23-8, Microphone Preamplifiers with Complete Shutdown |
| 中文描述： | 1 CHANNEL, AUDIO PREAMPLIFIER, PDSO8 |
| 封裝： | 0.150 INCH, MS-012A, SOIC-8 |
| 文件頁數： | 1/14頁 |
| 文件大小： | 502K |
| 代理商： | MAX4469ESA |
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
= 100k
)
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)
M
Low-Cost, Micropower, SC70/SOT23-8, Microphone
Preamplifiers with Complete Shutdown
________________________________________________________________
Maxim Integrated Products
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.
1
19-1950; Rev 1; 4/01
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
5 SOT23-5
5 SC70-5
5 SOT23-5
MAX4465
EXK-T
MAX4465EUK-T
MAX4466
EXK-T
MAX4466EUK-T
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.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX4470EUK | 制造商:Maxim Integrated Products 功能描述:SINGLE -1.8V / 750NA SC70 RAIL-T - Cut Tape Product |
| MAX4470EUK+ | 制造商:Maxim Integrated Products 功能描述:OP AMP SGL GP R-R O/P 5.5V 5PIN SOT-23 - Rail/Tube |
| MAX4470EUK+T | 功能描述:運算放大器 - 運放 1.8V/750nA Rail-Rail RoHS:否 制造商:STMicroelectronics 通道數量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| MAX4470EUK-T | 功能描述:運算放大器 - 運放 1.8V/750nA Rail-Rail RoHS:否 制造商:STMicroelectronics 通道數量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| MAX4470EVKIT+ | 功能描述:放大器 IC 開發工具 OPERATIONAL AMPLIFIER RoHS:否 制造商:International Rectifier 產品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V |
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