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參數(shù)資料
| 型號： | MAX473CSA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | Single/Dual/Quad, 10MHz Single-Supply Op Amps |
| 中文描述： | OP-AMP, 2000 uV OFFSET-MAX, 12 MHz BAND WIDTH, PDSO8 |
| 封裝： | 0.150 INCH, SO-8 |
| 文件頁數(shù)： | 9/12頁 |
| 文件大?。?/td> | 144K |
| 代理商： | MAX473CSA |
M
S ingle/Dual/Quad, 10MHz
S ingle-S upply Op Amps
_______________________________________________________________________________________
9
______________________________________________________________Pin Desc ription
Amplifier D Output
OUTD
14
—
—
Amplifier D Inverting Input
IND-
13
—
—
Amplifier D Noninverting Input
IND+
12
—
—
Amplifier C Noninverting Input
INC+
10
—
—
Amplifier C Inverting Input
INC-
9
—
—
Amplifier C Output
OUTC
8
—
—
MAX474
MAX475
PIN
INB+
OUT
INB-
OUTB
V
CC
IN+
INA+
V
EE
N.C.
INA-
IN-
OUTA
NULL
NAME
5
—
6
7
4
—
3
11
—
2
—
1
—
MAX473
Amplifier B Noninverting Input
5
—
Amplifier Output
—
6
Amplifier B Inverting Input
6
—
Amplifier B Output
7
—
Positive Power-Supply Pin. Connect to (+) terminal of power supply.
8
7
Noninverting Input
—
3
Amplifier A Noninverting Input
3
—
Negative Power-Supply Pin. Connect to ground or a negative voltage.
4
4
No Connect—not internally connected
—
5
Amplifier A Inverting Input
2
—
Inverting Input
—
2
Amplifier A Output
1
—
Offset Null Input. Connect to one end of 2k
potentiometer for offset voltage
trimming. Connect wiper to V
EE
. See Figure 1.
—
1, 8
FUNCTION
__________Applic ations Information
Power S upplies
The MAX473/MAX474/MAX475 operate from a single
2.7V to 5.25V power supply, or from dual supplies of
±1.35V to ±2.625V. For single-supply operation,
bypass the power supply with 0.1μF. If operating from
dual supplies, bypass each supply to ground. With
0.1μF bypass capacitance, channel separation
(MAX474/MAX475) is typically better than 120dB with
signal frequencies up to 300kHz. Increasing the
bypass capacitance (e.g. 10μF
||
0.1μF) maintains
channel separation at higher frequencies.
Minimizing Offsets
The MAX473’s maximum offset voltage is ±2mV
(T
A
= +25°C). If additional offset adjustment is required,
connect a 2k
trim potentiometer between pins 1, 8, and
4 (Figure 1). Input offset voltage for the dual MAX474
and quad MAX475 cannot be externally trimmed.
The MAX473/MAX474/MAX475 are bipolar op amps
with low input bias currents. The bias currents at both
inputs flow out of the device. Matching the resistance
at the op amp’s inputs significantly reduces the offset
error caused by the bias currents. Place a resistor (R3)
from the noninverting input to ground when using the
inverting configuration (Figure 2a); place R3 in series
with the noninverting input when using the noninverting
configuration (Figure 2b). Select R3 such that the paral-
lel combination of R2 and R1 equals R3. Adding R3 will
slightly increase the op amp’s voltage noise.
Output Loading and S tability
The MAX473/MAX474/MAX475 op amps are unity-gain
stable. Any op amp’s stability depends on the configu-
ration, closed-loop gain, and load capacitance. The
unity-gain, noninverting buffer is the most sensitive gain
configuration, and driving capacitive loads decreases
stability.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX473CSA+ | 功能描述:運算放大器 - 運放 RoHS:否 制造商:STMicroelectronics 通道數(shù)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(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| MAX473CSA+T | 功能描述:運算放大器 - 運放 RoHS:否 制造商:STMicroelectronics 通道數(shù)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(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| MAX473CSA-T | 功能描述:運算放大器 - 運放 RoHS:否 制造商:STMicroelectronics 通道數(shù)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(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| MAX473CUA | 功能描述:運算放大器 - 運放 RoHS:否 制造商:STMicroelectronics 通道數(shù)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(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| MAX473CUA+ | 功能描述:運算放大器 - 運放 RoHS:否 制造商:STMicroelectronics 通道數(shù)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(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
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