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參數(shù)資料
| 型號(hào)： | MAX4240 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Single/Dual/Quad, !.8V/10レA, SOT23, Beyond-the-Rails Op Amps |
| 中文描述： | 單/雙/四路、+1.8V/10µA、SOT23封裝、超擺幅運(yùn)算放大器 |
| 文件頁(yè)數(shù)： | 13/16頁(yè) |
| 文件大?。?/td> | 174K |
| 代理商： | MAX4240 |
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value, based on driving the output voltage to within
50mV, 100mV, and 200mV of either power-supply rail.
For example, a MAX4241 running from a single +1.8V
supply, operating at T
A
= +25°C, can source 240μA to
within 100mV of V
CC
and is capable of driving a 7k
load resistor to V
EE
:
The same application can drive a 3.3k
load resistor
when terminated in V
CC
/ 2 (+0.9V in this case).
Driving Capac itive Loads
The MAX4240–MAX4244 are unity-gain stable for loads
up to 200pF (see Load Resistor vs. Capacitive Load
graph in Typical Operating Characteristics). Applica-
tions that require greater capacitive drive capability
should use an isolation resistor between the output and
the capacitive load (Figure 8). Note that this alternative
results in a loss of gain accuracy because R
ISO
forms a
voltage divider with the load resistor.
Power-S upply Bypassing and Layout
The MAX4240–MAX4244 family operates from either a
single +1.8V to +5.5V supply or dual ±0.9V to ±2.75V
supplies. For single-supply operation, bypass the
power supply with a 100nF capacitor to V
EE
(in this
case GND). For dual-supply operation, both the V
CC
and V
EE
supplies should be bypassed to ground with
separate 100nF capacitors.
Good PC board layout techniques optimize perfor-
mance by decreasing the amount of stray capacitance
at the op amp’s inputs and output. To decrease stray
capacitance, minimize trace lengths by placing exter-
nal components as close as possible to the op amp.
Surface-mount components are an excellent choice.
R = 1.8V - 0.1V
240 A
7k to V
EE
=
M
S ingle/Dual/Quad, +1.8V /10μA, S OT 23,
Beyond-the-Rails Op Amps
______________________________________________________________________________________
13
R
ISO
C
L
R
L
MAX4240
MAX4241
MAX4242
MAX4243
MAX4244
V
= R
L
≈
1
A
L
+ R
ISO
Figure 8a Using a Resistor to Isolate a Capacitive Load from
the Op Amp
50mV/div
IN
OUT
50mV/div
MAX4240-44 fig08b
100
μ
s/div
R
ISO
= NONE, R
L
= 100k
, C
L
= 700pF
Figure 8b. Pulse Response without Isolating Resistor
50mV/div
IN
OUT
50mV/div
MAX4240-44 fig08c
100
μ
s/div
R
ISO
= 1k
, R
L
= 100k
, C
L
= 700pF
Figure 8c. Pulse Response with Isolating Resistor
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX4241 | Single/Dual/Quad, !.8V/10レA, SOT23, Beyond-the-Rails Op Amps |
| MAX4241ESA | Single/Dual/Quad, !.8V/10レA, SOT23, Beyond-the-Rails Op Amps |
| MAX4242 | Single/Dual/Quad, !.8V/10レA, SOT23, Beyond-the-Rails Op Amps |
| MAX4242ESA | Single/Dual/Quad, !.8V/10レA, SOT23, Beyond-the-Rails Op Amps |
| MAX4243 | Single/Dual/Quad, !.8V/10レA, SOT23, Beyond-the-Rails Op Amps |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4240EUK | 制造商:Maxim Integrated Products 功能描述:5 PIN COUNT SOT PACKAGE TYPE - Bulk |
| MAX4240EUK+ | 制造商:Maxim Integrated Products 功能描述: 制造商:Maxim Integrated Products 功能描述:OP AMP SGL GP R-R I/O 2.75V/5.5V 5PIN SOT-23 - Rail/Tube |
| MAX4240EUK+T | 功能描述:運(yùn)算放大器 - 運(yùn)放 1.8V 10uA Beyond the-Rails 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 |
| MAX4240EUK-T | 功能描述:運(yùn)算放大器 - 運(yùn)放 1.8V 10uA Beyond the-Rails 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 |
| MAX4241ESA | 功能描述:運(yùn)算放大器 - 運(yùn)放 1.8V 10uA Beyond the-Rails 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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