AD8331開發(fā)板套件編程器的評估板-運算放大器規(guī)格書PDF中文資料

AD8331屬于開發(fā)板套件編程器的評估板-運算放大器。由亞德諾半導體技術有限公司制造生產(chǎn)的AD8331評估板 - 運算放大器運算放大器評估板是裝有元器件的電路，用于提供特定集成電路或器件的工作實例。該產(chǎn)品族中的電路板提供了運算放大器實例。每個 IC 的通道類型有單通道、雙通道、三通道、四通道和八通道，放大器類型包括音頻、自動歸零、緩沖器、斬波器、電流反饋、電流檢測、差動、差分、四通道、儀表、隔離、J-FET、限幅、對數(shù)、功率、可編程增益、采樣保持、跨阻、可變增益、視頻、電壓反饋和零漂移。

GENERAL DESCRIPTION

The AD8331/AD8332/AD8334 are single-, dual-, and quad channel ultralow noise, linear-in-dB, variable gain amplifiers (VGAs). Optimized for ultrasound systems, they are usable as a low noise variable gain element at frequencies up to 120 MHz. Included in each channel are an ultralow noise preamplifier (LNA), an X-AMP? VGA with 48 dB of gain range, and a selectable gain postamplifier with adjustable output limiting.

The LNA gain is 19 dB with a single-ended input and differential outputs. Using a single resistor, the LNA input impedance can be adjusted to match a signal source without compromising noise performance.

FEATURES

Ultralow noise preamplifier

Voltage noise = 0.74 nV/√Hz

Current noise = 2.5 pA/√Hz

3 dB bandwidth

AD8331: 120 MHz

AD8332, AD8334: 100 MHz

Low power

AD8331: 125 mW/channel

AD8332, AD8334: 145 mW/channel

Wide gain range with programmable postamp

?4.5 dB to +43.5 dB

+7.5 dB to +55.5 dB

Low output-referred noise: 48 nV/√Hz typical

Active input impedance matching

Optimized for 10-bit/12-bit ADCs

Selectable output clamping level

Single 5 V supply operation

AD8332 and AD8334 available in lead frame chip scale package

APPLICATIONS

Ultrasound and sonar time-gain controls

High performance AGC systems

I/Q signal processing

High speed, dual ADC drivers