一般描述
Analog Devices AD8422 是一款高精密、低功耗、低噪聲軌到軌儀表放大器。Analog Devices AD8422以超低失真性能處理信號，在整個輸出范圍內(nèi)負載不影響性能。AD8422具有極低的偏置電流，高源阻抗時不會產(chǎn)生誤差，允許多個傳感器多路復(fù)用至輸入端。低電壓噪聲和低電流噪聲特性使AD8422成為測量惠斯登電橋的理想選擇。AD8422具有魯棒的輸入保護，能夠確保穩(wěn)定性，并且不犧牲噪聲性能。AD8422具有高ESD抑制能力和針對來自相反供電軌、高達40V的連續(xù)電壓輸入保護。通過一個電阻可將增益設(shè)置為1至1000?；鶞室_可用來向輸出電壓施加精確失調(diào)。AD8422的額定工作溫度范圍為 ?40℃至+85℃，可在高達125℃時保證典型性能曲線。共有8引腳MSOP和8引腳SOIC兩種封裝。
The AD8422 uses robust input protection that ensures reliability without sacrificing noise performance. The AD8422 has high ESD immunity, and the inputs are protected from continuous voltages up to 40 V from the opposite supply rail. A single resistor sets the gain from 1 to 1000. The reference pin can be used to apply a precise offset to the output voltage. The AD8422 is specified from ?40°C to +85°C and has typical performance curves to 125°C. It is available in 8-lead MSOP and 8-lead SOIC packages.
參數(shù)
Mouser編號：584-AD8422ARZ-R7
制造商編號：AD8422ARZ-R7
制造商：Analog Devices
說明：儀表放大器 High Performance InAmp
制造商: Analog Devices Inc.
產(chǎn)品種類: 儀表放大器
系列: AD8422
通道數(shù)量: 1 Channel
3dB帶寬: 2.2 MHz
SR - 轉(zhuǎn)換速率 : 800 mV/us
CMRR - 共模抑制比: 86 dB
Ib - 輸入偏流: 1 nA
Vos - 輸入偏置電壓 : 60 uV
電源電壓-最大: 36 V
電源電壓-最小: 4.6 V
工作電源電流: 300 uA
最小工作溫度: - 40 C
最大工作溫度: + 85 C
安裝風(fēng)格: SMD/SMT
封裝 / 箱體: SOIC-8
封裝: Reel
封裝: Cut Tape
封裝: MouseReel
放大器類型: Instrumentation Amplifier
帶寬: 2.2 MHz
商標: Analog Devices
雙重電源電壓: +/- 1.8 V to +/- 2.3 V
增益V/V: 1 V/V to 1000 V/V
工作電源電壓: 4.6 V to 36 V
每個通道的輸出電流: 20 mA
輸出類型: Rail-to-Rail
產(chǎn)品: Instrumentation Amplifiers
產(chǎn)品類型: Instrumentation Amplifiers
關(guān)閉: No Shutdown
工廠包裝數(shù)量: 1000
子類別: Amplifier ICs
單位重量: 540 mg
特性
330μA maximum quiescent current
Rail-to-rail output
Low noise and distortion
8nV/√Hz maximum input voltage noise at 1kHz
0.15μV p-p RTI noise (G=100)
0.5ppm nonlinearity with 2k? load (G = 1)
Excellent ac specifications
80dB minimum CMRR at 7kHz (G = 1)
2.2MHz bandwidth (G = 1)
High precision dc performance (AD8422BRZ)
150dB minimum CMRR (G = 1000)
0.04% maximum gain error (G = 1000)
0.3μV/°C maximum input offset drift
0.5nA maximum input bias current
Wide supply range
3.6V to 36V single supply
±1.8V to ±18V dual supply
40V from opposite supply Input overvoltage protection
1 to 1000 Gain range
應(yīng)用
Medical instrumentation
Industrial process controls
Strain gauges
Transducer interfaces
Precision data acquisition systems
Channel-isolated systems
Portable instrumentation
