LT5524 - LT5524是Low Distortion IF Amplifier/ADC Driver with Digitally Controlled Gain

LT5524是LINEAR凌力尔特公司的一款可变增益放大器产品，LT5524是LT5524是Low Distortion IF Amplifier/ADC Driver with Digitally Controlled Gain，本站介绍了LT5524的封装应用图解、特点和优点、功能等，并给出了与LT5524相关的LINEAR元器件型号供参考。

LT5524 - LT5524是Low Distortion IF Amplifier/ADC Driver with Digitally Controlled Gain - 可变增益放大器 - RF和无线 - 凌力尔特

LT5524 - Low Distortion IF Amplifier/ADC Driver with Digitally Controlled Gain

LT5524 - Low Distortion IF Amplifier/ADC Driver with Digitally Controlled Gain - Linear Technology（凌力尔特）

功能描述

The LT5524 is a programmable gain amplifier (PGA) with bandwidth extending from low frequency (LF) to 540MHz. It consists of a digitally controlled variable attenuator, followed by a high linearity amplifier. Four parallel digital inputs control the gain over a 22.5dB range with 1.5dB step resolution. An on-chip power supply regulator/filter helps isolate the amplifier signal path from external noise sources.

The LT5524’s open-loop architecture offers stable operation for any practical load conditions, including peaking free AC response when driving capacitive loads, and excellent reverse isolation.

The LT5524 may be operated broadband, where the output differential RC time constant sets the bandwidth, or it may be used as a narrowband driver with the appropriate output filter.

特点

Output IP3 at 100MHz: 40dBm

Maximum Output Power: 16dBm

Bandwidth: LF to 540MHz

Propagation Delay: 0.8ns

Maximum Gain: 27dB

Gain Control Range: 22.5dB

Gain Control Step: 1.5dB

Gain Control Settling Time: 500ns

Noise Figure: 8.6dB at 100MHz (Max Gain)

Output Noise Floor: –138dBm/Hz (Max Gain)

Reverse Isolation: –92dB