Analog Devices AD8368ACPZ 800 MHz VGA Amplifier

Description

Integrated circuit Analog Devices AD8368ACPZ supports signals from low frequencies up to an 800 MHz bandwidth. The X-AMP architecture provides a gain scaling of 37.5 dB/V, a 34 dB adjustment range, and 50 Ω input and output impedances. The MODE input allows the gain direction to be configured so that gain increases or decreases with the control voltage.

The integrated RMS detector allows the device to be configured as a complete AGC loop with RSSI output. The circuit can be used in IF amplifiers, cellular base stations, point-to-point radio links, RF instrumentation, and signal levelling systems. A supply voltage from 4.5 V to 5.5 V and the ENBL input enables the device to be turned on and off, while the 24-lead LFCSP package is intended for surface mounting.

Features

• Type: variable gain amplifier
• Manufacturer: Analog Devices
• Model: AD8368ACPZ
• Architecture: X-AMP
• 3 dB bandwidth: 800 MHz
• Gain range: −12 dB to +22 dB
• Gain span: 34 dB
• Gain scaling: 37.5 dB/V
• GAIN control voltage range: 0 V to 1 V
• Gain accuracy: ±0.4 dB
• Response time for a 6 dB gain step: 100 ns
• Integrated RMS detector
• Automatic gain control support
• RSSI support
• Input impedance: 50 Ω
• Output impedance: 50 Ω
• OIP3 at 140 MHz: 33 dBm
• P1dB at 140 MHz: 16 dBm
• Noise figure at maximum gain and 140 MHz: 9.5 dB
• Supply voltage: 4.5 V to 5.5 V
• Typical supply current: 60 mA
• Disable current: 2 mA
• Operating temperature range: −40°C to 85°C
• Package: LFCSP
• Number of pins: 24
• Mounting type: SMD
• RoHS compliant