THS4521

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community THS4521, THS4522, THS4524 SBOS458H – DECEMBER 2008 – REVISED JUNE 2015 THS452x Very Low Power, Negative Rail Input, Rail-To-Rail Output, Fully Differential Amplifier 1 Features 1 Fully Differential Architecture Bandwidth: 145 MHz (AV = 1 V/V) Slew Rate: 490 V/μs HD2: –133 dBc at 10 kHz (1 VRMS, RL = 1 kΩ) HD3: –141 dBc at 10 kHz (1 VRMS, RL = 1 kΩ) Input Voltage Noise: 4.6 nV/√Hz (f = 100 kHz) THD+N: –112dBc (0.00025%) at 1 kHz (22-kHz BW, G = 1, 5 VPP) Open-Loop Gain: 119 dB (DC) NRI—Negative Rail Input RRO—Rail-to-Rail Output Output Common-Mode Control (with Low Offset) Power Supply: – Voltage: +2.5 V (±1.25 V) to +5.5 V (±2.75 V) – Current: 1.14 mA/ch Power-Down Capability: 20 μA (typical) 2 Applications Low-Power SAR and ΔΣ ADC Drivers Low-Power Differential Drivers Low-Power Differential Signal Conditioning Low-Power, High-Performance Differential Audio Amplifiers 3 Description The THS4521, THS4522, and THS4524 family of devices are very low-power, fully differential amplifiers with rail-to-rail output and an input common-mode range that includes the negative rail. These amplifiers are designed for low-power data acquisition systems and high-density applications where power dissipation is a critical parameter, and provide exceptional performance in audio applications. The family includes single FDA (THS4521), dual FDA (THS4522), and quad FDA (THS45...