AD8337BCPZ Integrated Circuit Chip Variable Gain Amplifier with 280 MHz Bandwidth Low Noise and DC-Coupled Design

AD8337 is a low noise, single-ended, linear-in-dB, general-purpose variable gain amplifier (VGA) usable at frequencies from DC to 100 MHz with a −3 dB bandwidth of 280 MHz. Excellent bandwidth uniformity across the entire gain range and low output-referred noise makes the AD8337 ideal for gain trim applications and for driving high speed analog-to-digital converters (ADCs).

• Low noise: Voltage noise = 2.2 nV/√Hz
• Current noise = 4.8 pA/√Hz (positive input)
• Wide bandwidth (−3 dB) = 280 MHz
• Nominal gain range: 0 dB to 24 dB (preamp gain = 6 dB)
• Gain scaling: 19.7 dB/V
• DC-coupled
• Single-ended input and output
• High speed uncommitted op amp input
• Supplies: +5 V, ±2.5 V, or ±5 V
• Low power: 78 mW with ±2.5 V supplies

• Gain trim
• PET scanners
• High performance AGC systems
• I/Q signal processing
• Video
• Industrial and medical ultrasound
• Radar receivers