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參數資料
| 型號： | MAX4386EEUD |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | Low-Cost, 230MHz, Single/Quad Op Amps with Rail-to-Rail Outputs and 【15kV ESD Protection |
| 中文描述： | QUAD OP-AMP, 28000 uV OFFSET-MAX, PDSO14 |
| 封裝： | 4.40 MM, MO-153AB-1, TSSOP-14 |
| 文件頁數： | 9/13頁 |
| 文件大小： | 377K |
| 代理商： | MAX4386EEUD |
M
Low-Cost, 230MHz, Single/Quad Op Amps with
Rail-to-Rail Outputs and ±15kV ESD Protection
_______________________________________________________________________________________
9
Rail-to-Rail Outputs,
Ground-Sensing Inputs
The input common-mode range extends from (V
EE
-
200mV) to (V
CC
- 2.25V) with excellent common-mode
rejection. Beyond this range, the amplifier output is a
nonlinear function of the input, but does not undergo
phase reversal or latchup.
The output swings to within 50mV of either power-sup-
ply rail with a 2k
load. The input ground sensing and
the rail-to-rail output substantially increase the dynamic
range. The input can swing 2.95V
P-P
and the output
can swing 4.9V
P-P
with minimal distortion.
Output Capacitive Loading and Stability
The MAX4385E/MAX4386E are optimized for AC perfor-
mance and do not drive highly reactive loads, which
decreases phase margin and may produce excessive
ringing and oscillation. Figure 2 shows a circuit that
eliminates this problem. Figure 3 is a graph of the
Optimal Isolation Resistor (R
S
) vs. Capacitive Load.
Figure 4 shows how a capacitive load causes exces-
sive peaking of the amplifier
’
s frequency response if
the capacitor is not isolated from the amplifier by a
resistor. A small isolation resistor (usually 10
to 15
)
placed before the reactive load prevents ringing and
oscillation. At higher capacitive loads, the interaction of
the load capacitance and the isolation resistor controls
the AC performance. Figure 5 shows the effect of a
15
isolation resistor on closed-loop response.
6
-4
100k
10M
100M
1M
1G
-2
FREQUENCY (Hz)
G
0
2
4
5
-3
-1
1
3
C
L
= 10pF
C
L
= 15pF
C
L
= 5pF
Figure 4. Small-Signal Gain vs. Frequency with Load
Capacitance and No Isolation Resistor
Figure 2. Driving a Capacitive Load Through an Isolation Resistor
9
11
10
13
12
15
14
16
0
200
C
LOAD
(pF)
100
300
400
50
250
150
350
450 500
ISOLATION RESISTANCE
vs. CAPACITIVE LOAD
R
I
)
Figure 3. Isolation Resistance vs. Capacitive Load
R
G
R
F
R
ISO
C
L
V
OUT
V
IN
MAX438_E
3
-7
100k
10M
100M
1M
1G
-5
FREQUENCY (Hz)
G
-3
-1
1
2
-6
-4
-2
0
C
L
= 68pF
R
ISO
= 15
C
L
= 120pF
C
L
= 47pF
Figure 5. Small-Signal Gain vs. Frequency with Load
Capacitance and 27
Isolation Resistor
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PDF描述 |
|---|---|
| MAX4385E | Low-Cost, 230MHz, Single/Quad Op Amps with Rail-to-Rail Outputs and 【15kV ESD Protection |
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| MAX4390EXT-T | Ultra-Small, Low-Cost, 85MHz Op Amps with Rail-to-Rail Outputs and Disable |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX4386EEUD+ | 功能描述:高速運算放大器 230MHz w/Rail-Rail Output RoHS:否 制造商:Texas Instruments 通道數量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX4386EEUD+T | 功能描述:高速運算放大器 230MHz w/Rail-Rail Output RoHS:否 制造商:Texas Instruments 通道數量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX4386EEUD-T | 功能描述:高速運算放大器 RoHS:否 制造商:Texas Instruments 通道數量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX4387ESA | 功能描述:運算放大器 - 運放 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 |
| MAX4387ESA+ | 功能描述:運算放大器 - 運放 3V/5V 250MHz ADC Buffer Amp 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 |
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