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參數(shù)資料
| 型號： | ADA4638-1ARZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 9/25頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC OPAMP RRO ZERO DRIFT 8SOIC |
| 標(biāo)準(zhǔn)包裝： | 98 |
| 放大器類型： | 零漂移 |
| 電路數(shù)： | 1 |
| 輸出類型： | 滿擺幅 |
| 轉(zhuǎn)換速率： | 1.5 V/µs |
| 增益帶寬積： | 1.5MHz |
| -3db帶寬： | 2.5MHz |
| 電流 - 輸入偏壓： | 45pA |
| 電壓 - 輸入偏移： | 0.5µV |
| 電流 - 電源： | 850µA |
| 電流 - 輸出 / 通道： | 38mA |
| 電壓 - 電源，單路/雙路(±)： | 4.5 V ~ 30 V，±2.25 V ~ 15 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SO |
| 包裝： | 管件 |
ADA4638-1
Data Sheet
Rev. 0 | Page 16 of 24
APPLICATIONS INFORMATION
The ADA4638-1, with its wide supply voltage range of 4.5 V to
30 V, is a precision, rail-to-rail output, zero-drift operational
amplifier that features a patented combination of auto-zeroing
and chopping technique. This unique topology allows the
ADA4638-1 to maintain its low offset voltage over a wide tempera-
ture range and over its operating lifetime. This amplifier offers
ultralow input offset voltage of 4.5 μV maximum and an input
offset voltage drift of 80 nV/°C maximum. Offset voltage errors
due to common-mode voltage swings and power supply varia-
tions are also corrected by the auto-zeroing and chopping tech-
nique, resulting in a superb typical CMRR figure of 142 dB and
a PSRR figure of 143 dB at a ±15 V supply voltage. With ultrahigh
dc accuracy and no 1/f noise component, the ADA4638-1 is
ideal for high gain amplification of low level signals in dc or low
frequency applications without the risk of excessive output
voltage errors.
DIFFERENTIATION
Traditionally, zero-drift amplifiers are designed using either the
auto-zeroing or chopping technique. Each technique has its
benefits and drawbacks. Auto-zeroing usually results in low
noise energy at the auto-zeroing frequency, at the expense of
higher low frequency noise due to aliasing of wideband noise
into the auto-zeroed frequency band. Chopping results in lower
low frequency noise at the expense of larger noise energy at the
chopping frequency. The ADA4638-1 uses both auto-zeroing
and chopping in a patented ping-pong arrangement to obtain
lower low frequency noise together with lower energy at the
chopping and auto-zeroing frequencies, maximizing the signal-
to-noise ratio for the majority of applications. The relatively
high chopping frequency of 16 kHz and auto-zeroing frequency
of 8 kHz simplifies filter requirements for a wide, useful
bandwidth.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADA4638-1ARZ_PROMO | 制造商:Analog Devices 功能描述:IC OP AMP PREC RRO SOIC-8 |
| ADA4638-1ARZ-R7 | 功能描述:IC OPAMP RRO ZERO DRIFT 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 放大器類型:電壓反饋 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)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(yīng)商設(shè)備封裝:14-SOIC 包裝:帶卷 (TR) |
| ADA4638-1ARZ-RL | 功能描述:IC OPAMP RRO ZERO DRIFT 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 放大器類型:電壓反饋 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)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(yīng)商設(shè)備封裝:14-SOIC 包裝:帶卷 (TR) |
| ADA-4643 | 制造商:Avago Technologies 功能描述:AMP RF SI 4643 SOT-343-4 3.5V 制造商:Avago Technologies 功能描述:AMP, RF SI, 4643, SOT-343-4, 3.5V |
| ADA-4643-BLK | 制造商:AGILENT 制造商全稱:AGILENT 功能描述:Silicon Bipolar Darlington Amplifier |
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