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參數資料
| 型號： | LMC7111 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Rheostat; Series:MP; Power Rating:12.5W; Resistance Max:2.5kohm; Terminal Type:Lugs; Resistance:2.5kohm; Type:Rheostat |
| 中文描述： | 微型CMOS運算放大器的軌到軌輸入 |
| 文件頁數： | 13/18頁 |
| 文件大小： | 735K |
| 代理商： | LMC7111 |
Application Information
(Continued)
7.0 Reference Buffer for A-to-D Converters
The LMC7111 can be used as a voltage reference buffer for
analog-to-digital converters. This works best for A-to-D con-
verters whose reference input is a static load, such as dual
slope integrating A-to-Ds. Converters whose reference input
is a dynamic load (the reference current changes with time)
may need a faster device, such as the LMC7101 or the
LMC7131.
The small size of the LMC7111 allows it to be placed close to
the reference input. The low supply current (25 μA typical)
saves power.
For A-to-D reference inputs which require higher accuracy
and
lower
offset
voltage,
datasheet. The LMC6462 has performance similar to the
LMC7111. The LMC6462 is available in two grades with re-
duced input voltage offset.
please
see
the
LMC6462
8.0 Dual and Quad Devices with Similar Performance
The LMC6462 and LMC6464 are dual and quad devices with
performance similar to the LMC7111. They are available in
both conventional through-hole and surface mount packag-
ing. Please see the LMC6462/4 datasheet for details.
9.0 SPICE Macromodel
A SPICE macromodel is available for the LMC7111. This
model includes simulation of:
Input common-mode voltage range
Frequency and transient response
Quiescent and dynamic supply current
Output swing dependence on loading conditions and
many more characteristics as listed on the macro model
disk. Contact your local National Semiconductor sales of-
fice to obtain an operational amplifier spice model library
disk.
10.0 Additional SOT23-5 Tiny
Devices
National Semiconductor has additional parts available in the
space saving SOT23 Tiny package, including amplifiers,
voltage references, and voltage regulators. These devices
include—
LMC7101
1 MHz gain-bandwidth rail-to-rail input and out-
put amplifier— high input impedance and high
gain, 700 μAtypical current 2.7V, 3V, 5V and 15V
specifications.
LM7131
Tiny Video amp with 70 MHz gain bandwidth.
Specified at 3V, 5V and
±
5V supplies.
LMC7211
Comparator in a tiny package with rail-to-rail in-
put and push-pull output. Typical supply current
of 7 μA. Typical propagation delay of 7 μs. Speci-
fied at 2.7V, 5V and 15V supplies.
LMC7221
Comparator with an open drain output for use in
mixed voltage systems. Similar to the LMC7211,
DS012352-17
C
F
and R
isolation
prevent oscillations when driving capacitive loads.
FIGURE 4. Stable Negative Bias
DS012352-18
www.national.com
13
相關PDF資料 |
PDF描述 |
|---|---|
| LMC7111AIN | Tiny CMOS Operational Amplifier with Rail-to-Rail Input |
| LMC7111BIM5 | Tiny CMOS Operational Amplifier with Rail-to-Rail Input |
| LMC7111BIM5X | RHEOSTAT |
| LMC7111BIN | Tiny CMOS Operational Amplifier with Rail-to-Rail Input |
| LMC7215 | Micro-Power, Rail-to-Rail CMOS Comparators with Open-Drain/Push-Pull Outputs and TinyPak⑩ Package |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LMC7111AIM5 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
| LMC7111AIM5X | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| LMC7111AIN | 功能描述:IC OP AMP R-R IN/OUT CMOS 8-DIP RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:1,000 系列:- 放大器類型:電壓反饋 電路數:4 輸出類型:滿擺幅 轉換速率:33 V/µs 增益帶寬積:20MHz -3db帶寬:30MHz 電流 - 輸入偏壓:2nA 電壓 - 輸入偏移:3000µV 電流 - 電源:2.5mA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 16.5 V，±2.25 V ~ 8.25 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） 供應商設備封裝:14-SOIC 包裝:帶卷 (TR) |
| LMC7111BIM5 | 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 |
| LMC7111BIM5/NOPB | 功能描述:運算放大器 - 運放 TINY 2.7V RRIO UPWR CMOS 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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