AD8306-EVAL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

AD8306-EVAL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(dǎo)體技術(shù)有限公司制造生產(chǎn)的AD8306-EVAL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。

PRODUCT DESCRIPTION

The AD8306 is a complete IF limiting amplifier, providing both an accurate logarithmic (decibel) measure of the input signal (the RSSI function) over a dynamic range of 100 dB, and a programmable limiter output, useful from 5 MHz to 400 MHz.

It is easy to use, requiring few external components. A single supply voltage of +2.7 V to +6.5 V at 16 mA is needed, corresponding to a power consumption of under 50 mW at 3 V, plus the limiter bias current, determined by the application and typically 2 mA, providing a limiter gain of 90 dB when using 200 ? loads. A CMOS-compatible control interface can enable the AD8306 within about 500 ns and disable it to a standby current of under 1 μA.

The six cascaded amplifier/limiter cells in the main path have a small signal gain of 12.04 dB (×4), with a –3 dB bandwidth of 850 MHz, providing a total gain of 72 dB. The programmable output stage provides a further 18 dB of gain. The input is fully differential and presents a moderately high impedance (1 k? in parallel with 2.5 pF). The input-referred noise-spectral-density, when driven from a terminated 50 ?, source is 1.28 nV/√Hz, equivalent to a noise figure of 3 dB. The sensitivity of the AD8306 can be raised by using an input matching network.

Each of the main gain cells includes a full-wave detector. An additional four detectors, driven by a broadband attenuator, are used to extend the top end of the dynamic range by over 48 dB.

FEATURES

Complete, Fully Calibrated Log-Limiting IF Amplifier

100 dB Dynamic Range: –91 dBV to +9 dBV

Stable RSSI Scaling Over Temperature and Supplies:

20 mV/dB Slope, –95 dBm Intercept

60.4 dB RSSI Linearity up to 200 MHz

Programmable Limiter Gain and Output Current

Differential Outputs to 10 mA, 2.4 V p-p

Overall Gain 90 dB, Bandwidth 400 MHz

Constant Phase (Typical 656 ps Delay Skew)

Single Supply of +2.7 V to +6.5 V at 16 mA Typical

Fully Differential Inputs, RIN = 1 kV, CIN = 2.5 pF

500 ns Power-Up Time, <1 mA Sleep Current

APPLICATIONS

Receivers for Frequency and Phase Modulation

Very Wide Range IF and RF Power Measurement

Receiver Signal Strength Indication (RSSI)

Low Cost Radar and Sonar Signal Processing

Instrumentation: Network and Spectrum Analyzers