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參數(shù)資料
| 型號： | MAX4044ESD+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 15/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC OP AMP R-R QUAD 14-SOIC |
| 標準包裝： | 2,500 |
| 放大器類型： | 通用 |
| 電路數(shù)： | 4 |
| 輸出類型： | 滿擺幅 |
| 轉(zhuǎn)換速率： | 0.04 V/µs |
| 增益帶寬積： | 90kHz |
| 電流 - 輸入偏壓： | 2nA |
| 電壓 - 輸入偏移： | 200µV |
| 電流 - 電源： | 14µA |
| 電流 - 輸出 / 通道： | 2.5mA |
| 電壓 - 電源，單路/雙路(±)： | 2.4 V ~ 5.5 V，±1.2 V ~ 2.75 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 14-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 14-SOIC |
| 包裝： | 帶卷 (TR) |
MAX4040–MAX4044
Single/Dual/Quad, Low-Cost, SOT23,
Micropower, Rail-to-Rail I/O Op Amps
8
_______________________________________________________________________________________
_______________Detailed Description
Rail-to-Rail Input Stage
The MAX4040–MAX4044 have rail-to-rail inputs and
rail-to-rail output stages that are specifically designed
for low-voltage, single-supply operation. The input
stage consists of separate NPN and PNP differential
stages, which operate together to provide a common-
mode range extending to both supply rails. The
crossover region of these two pairs occurs halfway
between VCC and VEE. The input offset voltage is typi-
cally 200V. Low operating supply voltage, low supply
current, rail-to-rail common-mode input range, and rail-
to-rail outputs make this family of operational amplifiers
an excellent choice for precision or general-purpose,
low-voltage battery-powered systems.
Since the input stage consists of NPN and PNP pairs,
the input bias current changes polarity as the common-
mode voltage passes through the crossover region.
Match the effective impedance seen by each input to
reduce the offset error caused by input bias currents
flowing through external source impedances (Figures
1a and 1b). The combination of high source impedance
plus input capacitance (amplifier input capacitance
plus stray capacitance) creates a parasitic pole that
produces an underdamped signal response. Reducing
input capacitance or placing a small capacitor across
the feedback resistor improves response in this case.
______________________________________________________________Pin Description
1
—
2
4
11
Negative Supply. Tie to ground for
single-supply operation.
VEE
3
—
Amplifier Output. High impedance
when in shutdown mode.
OUT
—
4
—
Inverting Input
IN-
Noninverting Input
IN+
5
10
8
14
4
—
5, 7,
8, 10
—
No Connection. Not internally con-
nected.
N.C.
—
Positive Supply
VCC
—
1, 9
1, 7
1, 13
1, 7
Outputs for Amplifiers A and B. High
impedance when in shutdown mode.
OUTA,
OUTB
Shutdown Input. Drive high, or tie to
VCC for normal operation. Drive to VEE
to place device in shutdown mode.
SHDN
—
2, 8
2, 6
2, 12
2, 6
—
3, 7
3, 5
3, 11
3, 5
Noninverting Inputs to Amplifiers A
and B
INA+,
INB+
—
5, 6
Inverting Inputs to Amplifiers A and B
INA-,
INB-
—
6, 9
—
8, 14
Outputs for Amplifiers C and D
OUTC,
OUTD
Shutdown Inputs for Amplifiers A
and B. Drive high, or tie to VCC for
normal operation. Drive to VEE to
place device in shutdown mode.
SHDNA,
SHDNB
—
9, 13
—
10, 12
Noninverting Inputs to Amplifiers C
and D
INC+,
IND+
Inverting Inputs to Amplifiers C and D
INC-,
IND-
6
4
3
2
7
1, 5
8
—
6
4
3
2
7
1, 5, 8
—
MAX4043
MAX4044
PIN
MAX
MAX4042
SO
MAX4041
FUNCTION
NAME
SOT23-5
MAX4040
SO/MAX
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