THS7530PWPR

The THS7530 device is fabricated using an advanced BiCom IIISiGe complementary bipolar process. It is a DC-coupled high-bandwidth amplifier with voltage-controlled gain. This amplifier features high-impedance differential inputs and low-impedance differential outputs, offering high-bandwidth gain control, output common-mode control, and output voltage clamping functions. It delivers excellent signal channel performance at a bandwidth of 300 MHz, while at a bandwidth of 32 MHz with a 1 VPP output into 400 Ω, it exhibits a third harmonic distortion of –61 dBc. The gain control (in dB) varies linearly. Within the voltage range of 0 V to 0.9 V, the gain changes from 11.6 dB to 46.5 dB with a slope of 38.8 dB/V. The output voltage limiting function is used to limit the output voltage swing and prevent saturation in subsequent stages. This device is rated to operate over the industrial temperature range (-40°C to +85°C).

Applications

• Ultrasonic applications
• Time gain amplifiers in sonar and radar
• Automatic gain control in communications and video
• System gain calibration in communications
• Variable gain in instrumentation

Key features

• Low noise: Vn = 1.1nV/√Hz, noise figure = 9dB
• Low distortion: at 32MHz: HD2 = -65dBc, HD3 = -61dBc; at 70MHz: HD3 = -62dBc, OIP3 = 21dBm
• 300MHz bandwidth
• Continuously variable gain range: 11.6dB to 46.5dB
• Gain slope: 38.8dB/V
• Fully differential input and output
• Output common-mode voltage control
• Output voltage limiting