500M 45DB Variable Gain High Linearity Low Distortion VGa AGC AD8367 Module Descriptions:   AD8367 was introduced by AD company as a variable gain single-ended IF amplifier, which uses AD's advanced X-AMP structure, with excellent gain control features. Because of the integrated on-chip rfc geophone, it is also the world's first VGA chip that enables single-chip closed-loop AGC. The chip features a high performance 45dB variable gain amplifier that controls linear gain and operates stably from any low frequency to 500MHz. Features: Single-ended input, single-ended output. Input impedance is 200Ω, the output impedance is 50Ω. 3dB bandwidth is 500MHz. Gain control feature selection and power-down control. On-chip integrated square root detector, can achieve single-chip AGC applications. Gain control characteristics in dB linear. The operating frequency can be extended to any low frequency by external capacitor.   Module Features: 1. Single 5V supply, current 30mA. 3. The module default input and output impedance of 50R, can be changed as you needed. Package included: 1 x  AD8367 Module