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參數(shù)資料
| 型號(hào)： | MAX44251AUA+T |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 2/14頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP LNA 20V ULT PREC UMAX |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 放大器類(lèi)型： | 自動(dòng)調(diào)零 |
| 電路數(shù)： | 2 |
| 輸出類(lèi)型： | 滿擺幅 |
| 轉(zhuǎn)換速率： | 8 V/µs |
| 增益帶寬積： | 10MHz |
| 電流 - 輸入偏壓： | 200pA |
| 電壓 - 輸入偏移： | 3µV |
| 電流 - 電源： | 1.15mA |
| 電流 - 輸出 / 通道： | 96mA |
| 電壓 - 電源，單路/雙路(±)： | 2.7 V ~ 20 V，±1.35 V ~ 10 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-uMAX |
| 包裝： | 帶卷 (TR) |
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Maxim Integrated
MAX44250/MAX44251/MAX44252
20V, Ultra-Precision, Low-Noise Op Amps
Detailed Description
The MAX44250/MAX44251/MAX44252 are high-preci-
sion amplifiers that have less than 3FV of typical input-
referred offset and low flicker noise. These characteris-
tics are achieved through an autozeroing technique that
samples and finds repeating patterns of signal to cancel
the input offset voltage and 1/f noise of the amplifier.
Autozero
The ICs feature an autozero circuit that allows the devices
to achieve less than 6FV (max) of input offset voltage at
room temperature and eliminate the 1/f noise.
Noise Suppression
Flicker noise, inherent in all active devices, is inversely
proportional to frequency presented. Charges at the
oxide-silicon interface that are trapped-and-released by
MOSFET oxide occurs at low frequency more often. For
this reason, flicker noise is also called 1/f noise.
Electromagnetic interference (EMI) noise occurs at high-
er frequency that results in malfunction or degradation of
electrical equipment.
The ICs have an input EMI filter to avoid the output get-
ting affected by radio frequency interference. The EMI
filter composed of passive devices presents significant
higher impedance to higher frequency.
High Supply Voltage Range
The ICs feature 1.15mA current consumption per channel
and a voltage supply range from either 2.7V to 20V single
supply or ±1.35V to ±10V split supply.
Applications Information
The ICs are ultra-high-precision operational amplifiers with
a high supply voltage range designed for load cell, medi-
cal instrumentation and precision instrument applications.
These devices are also designed to interface with pres-
sure transducers and are ideal for precision weight scale
application as shown in Figure 1.
Figure 1. Weight Scale Application Circuit
10V
+10V
3.3V
3V
VDD
MICRO-
PROCESSOR
VOUT
50RG
RG
VREF
VDD
VSS
VIN-
VIN+
C1
BUFFER
MAX44251
MAX11211
MAX6126
MAX44251
R
+10V
1.5V
BUFFER
R
R1
OUTPUT
-10V
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX44251EVKIT# | 功能描述:放大器 IC 開(kāi)發(fā)工具 MAX44251 Eval Kit RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類(lèi)型:Power Amplifiers 工具用于評(píng)估:IR4302 工作電源電壓:13 V to 23 V |
| MAX44251EVKIT+ | 功能描述:放大器 IC 開(kāi)發(fā)工具 20V ultra-precision low-noise low-drift amplifiers RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類(lèi)型:Power Amplifiers 工具用于評(píng)估:IR4302 工作電源電壓:13 V to 23 V |
| MAX44252ASD+ | 功能描述:運(yùn)算放大器 - 運(yùn)放 20V Ultra-Precision Low-Noise Op Amp 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 |
| MAX44252ASD+T | 功能描述:運(yùn)算放大器 - 運(yùn)放 20V Ultra-Precision Low-Noise Op Amp 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 |
| MAX44252EVKIT# | 功能描述:放大器 IC 開(kāi)發(fā)工具 20V Ultra-Precision Low-Noise Op Amp RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類(lèi)型:Power Amplifiers 工具用于評(píng)估:IR4302 工作電源電壓:13 V to 23 V |
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