參數(shù)資料
型號: MAX4467EKA+T
廠商: Maxim Integrated Products
文件頁數(shù): 11/12頁
文件大?。?/td> 0K
描述: IC PREAMP AUDIO MONO AB SOT23-8
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 2,500
類型: AB 類
輸出類型: 1-通道(單聲道)
電源電壓: 2.4 V ~ 5.5 V
特點: 麥克風,關機
安裝類型: 表面貼裝
供應商設備封裝: SOT-23-8
封裝/外殼: SOT-23-8
包裝: 帶卷 (TR)
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-Up
The MAX4465–MAX4469 outputs typically settle within
1s after power-up. Figure 6 shows the output voltage
on power-up.
Power Supplies and Layout
The MAX4465–MAX4469 operate from a single +2.4V to
+5.5V power supply. Bypass the power supply with a
0.1F 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.
Test Circuits/Timing Diagrams
Figure 2. MAX4466 Typical Application Circuit
ELECTRET
CAPSULE
VCC = +5V
MAX4466
2k
10k
GND
100k
100pF
1M
+5V
1M
2k
0.1
F
0.01
F
1
F
1
5
2
4
3
IN+
IN-
OUT
MAX4465–MAX4469
Low-Cost, Micropower, SC70/SOT23-8, Microphone
Preamplifiers with Complete Shutdown
8
1V/div
100
s/div
Figure 1. Rail-to-Rail Output Operation
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