Analog Devices Inc.
Analog Devices(納斯達克股票代碼:ADI)是設計、製造和營銷廣泛的高性能模擬、混合信號和數碼訊號處理 (DSP) 集成電路 (IC) 產品組合的全球領導者,這些產品幾乎用於所有類型的 電子設備。 自 1965 年成立以來,他們一直專注於解決與電子設備信號處理相關的工程挑戰。 他們的信號處理產品已被全球超過 100,000 家客户使用,在將温度、壓力、聲音、光、速度和運動等現實世界現象轉換、調節和處理為電信號以用於廣泛應用方面發揮着重要作用 的電子設備。 Maxim Integrated 現在是 Analog Devices 的一部分。 結合起來,它們提供了一套擴展的頂級性能混合信號和電源管理技術,以幫助客户在日益數碼化、無處不在的感知和互聯世界中取得成功。 他們廣泛的工程能力和深度的領域專業知識共同幫助我們的客户解決從直流到 100 GHz、從納瓦到千瓦、從傳感器到雲的最複雜問題。
查看所有産品從 Analog Devices Inc.The AD604ARSZ is an ultralow noise, very accurate, dual-channel, linear-in-dB variable gain amplifier (VGA) optimized for time-based variable gain control in ultrasound applications; however, it supports any application requiring low noise, wide bandwidth, variable gain control. Each channel of the AD604ARSZ provides a 300 kΩ input resistance and unipolar gain control for ease of use. User determined gain ranges, gain scaling (dB/V), and dc level shifting of output further optimize performance.
Each channel of the AD604ARSZ utilizes a high performance preamplifier that provides an input referred noise voltage of 0.8 nV/√Hz. The very accurate linear-in-dB response of the AD604ARSZ is achieved with the differential input exponential amplifier (DSX-AMP) architecture. Each of the DSX-AMPs comprise a variable attenuator of 0 dB to 48.36 dB followed by a high speed fixed gain amplifier. The attenuator is a 7-stage R-1.5R ladder network. The attenuation between tap points is 6.908 dB and 48.36 dB for the ladder network.
The equation for the linear-in-dB gain response is
G(dB) = (Gain Scaling (dB/V) × VGN (V))
+ (Preamp Gain (dB) – 19 dB)
Preamplifier gains between 5 and 10 (14 dB and 20 dB) provide overall gain ranges per channel of 0 dB through 48 dB and 6 dB through 54 dB. The two channels of the AD604ARSZ can be cascaded to provide greater levels of gain range by bypassing the second channel’s preamplifier. However, in multiple channel systems, cascading the AD604ARSZ with other devices in the AD60x VGA family that do not include a preamplifier may provide a more efficient solution. The AD604ARSZ provides access to the output of the preamplifier, allowing for external filtering between the preamplifier and the differential attenuator stage.
Note that scale factors up to 40 dB/V are achievable with reduced accuracy for scales above 30 dB/V. The gain scales linearly-in-dB with control voltages of 0.4 V to 2.4 V with the 20 dB/V scale. Below and above this gain control range, the gain begins to deviate from the ideal linear-in-dB control law. The gain control region below 0.1 V is not used for gain control. In fact when the gain control voltage is <50 mV, the amplifier channel is powered down to 1.9 mA.
The AD604ARSZ is available in 24-lead SSOP, SOIC, and PDIP packages and is guaranteed for operation over the −40°C to +85°C temperature range.
類型 | 描述 | 全選 |
---|---|---|
-3db 帶寬 | 40 MHz | |
供應商器件封裝 | 24-SSOP | |
安裝類型 | 表面貼裝型 | |
電路數 | 2 | |
工作温度 | -40°C ~ 85°C | |
放大器類型 | 可變增益 | |
電壓 - 跨度(最大值) | 5 V | |
產品狀態 | 在售 | |
電壓 - 跨度(最小值) | 5 V | |
包裝 | 管件 | |
電流 - 輸出/通道 | 40 mA | |
系列 | X-AMP® | |
電流 - 供電 | 32mA | |
電壓 - 輸入補償 | 30 mV | |
電流 - 輸入偏置 | 400 nA | |
壓擺率 | 170V/µs | |
封裝/外殼 | 24-SSOP(0.209",5.30mm 寬) |
Analog Devices Inc.
Analog Devices(納斯達克股票代碼:ADI)是設計、製造和營銷廣泛的高性能模擬、混合信號和數碼訊號處理 (DSP) 集成電路 (IC) 產品組合的全球領導者,這些產品幾乎用於所有類型的 電子設備。 自 1965 年成立以來,他們一直專注於解決與電子設備信號處理相關的工程挑戰。 他們的信號處理產品已被全球超過 100,000 家客户使用,在將温度、壓力、聲音、光、速度和運動等現實世界現象轉換、調節和處理為電信號以用於廣泛應用方面發揮着重要作用 的電子設備。 Maxim Integrated 現在是 Analog Devices 的一部分。 結合起來,它們提供了一套擴展的頂級性能混合信號和電源管理技術,以幫助客户在日益數碼化、無處不在的感知和互聯世界中取得成功。 他們廣泛的工程能力和深度的領域專業知識共同幫助我們的客户解決從直流到 100 GHz、從納瓦到千瓦、從傳感器到雲的最複雜問題。
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