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參數(shù)資料
| 型號： | MAX4168ESD |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 運(yùn)動控制電子 |
| 英文描述： | Voltage-Feedback Operational Amplifier |
| 中文描述： | DUAL OP-AMP, 1000 uV OFFSET-MAX, 5 MHz BAND WIDTH, PDSO14 |
| 封裝： | SOP-14 |
| 文件頁數(shù)： | 12/16頁 |
| 文件大?。?/td> | 230K |
| 代理商： | MAX4168ESD |
M
High-Output-Drive, Precision, Low-Power, Single-
Supply, Rail-to-Rail I/O Op Amps with Shutdown
12
______________________________________________________________________________________
Power-Up and S hutdown Modes
The MAX4166/MAX4168 have a shutdown option.
When the shutdown pin (
SHDN
) is pulled low, supply
current drops to 58μA per amplifier (V
CC
= +5V), the
amplifiers are disabled, and their outputs are placed in
a high-impedance state. Pulling
SHDN
high or leaving it
floating enables the amplifier. In the dual MAX4168, the
two amplifiers shut down independently. Figures 12
and 13 show the MAX4166’s output voltage and sup-
ply-current responses to a shutdown pulse. The
MAX4166–MAX4169 typically settle within 5μs after
power-up (Figure 14).
Power S upplies and Layout
The MAX4165–MAX4169 can operate from a single
+2.7V to +6.5V supply, or from dual ±1.35V to
±3.25V supplies. For single-supply operation, bypass
the power supply with a 0.1μF ceramic capacitor in
parallel with at least 1μF. For dual-supply operation,
bypass each supply to ground. Good layout improves
performance by decreasing the amount of stray capac-
itance at the op amps’ inputs and outputs. Decrease
stray capacitance by placing external components
close to the op amps’ pins, minimizing trace and lead
lengths.
1300
1200
0
10
100k
100
200
300
400
1100
1000
900
800
700
600
500
M
RESISTIVE LOAD (k
)
C
100
1k
10k
STABLE REGION
V
CC
= +5.0V
R
L
to V
CC
/ 2
UNSTABLE REGION
Figure 8. Capacitive Load Stability
IN
(20mV/div)
OUT
(20mV/div)
M
TIME (1
μ
s/div)
V
CC
= +3.0V, C
L
= 1500pF
R
L
= 100k
, R
ISO
= 0
Figure 9. Small-Signal Transient Response with Excessive
Capacitive Load
IN
(20mV/div)
OUT
(20mV/div)
M
TIME (1
μ
s/div)
V
CC
= +3.0V, C
L
= 1500pF
R
L
= 100k
, R
ISO
= 39
Figure 10. Small-Signal Transient Response with Excessive
Capacitive Load with Isolation Resistor
R
ISO
C
L
Figure 11. Capacitive-Load-Driving Circuit
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX4168EUB | Voltage-Feedback Operational Amplifier |
| MAX4169EPD | Voltage-Feedback Operational Amplifier |
| MAX4169ESD | Voltage-Feedback Operational Amplifier |
| MAX4166EUA | High-Output-Drive, Precision, Low-Power, Single- Supply, Rail-to-Rail I/O Op Amps with Shutdown |
| MAX4173TESA | Low-Cost, SOT23, Voltage-Output, High-Side Current-Sense Amplifier |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4168ESD+ | 功能描述:運(yùn)算放大器 - 運(yùn)放 High-Output-Drive Supply Rail-Rail 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(bǔ)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(fēng)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 |
| MAX4168ESD+T | 功能描述:運(yùn)算放大器 - 運(yùn)放 High-Output-Drive Supply Rail-Rail 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(bǔ)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(fēng)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 |
| MAX4168ESD-T | 功能描述:運(yùn)算放大器 - 運(yùn)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(bǔ)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(fēng)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 |
| MAX4168EUB | 功能描述:運(yùn)算放大器 - 運(yùn)放 High-Output-Drive Supply Rail-Rail 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(bǔ)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(fēng)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 |
| MAX4168EUB+ | 功能描述:運(yùn)算放大器 - 運(yùn)放 High-Output-Drive Supply Rail-Rail 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(bǔ)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(fēng)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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