1 Features
1• Fully Differential Architecture
• Bandwidth: 145 MHz (A V = 1 V/V)
• Slew Rate: 490 V/μs
• HD2: –133 dBc at 10 kHz (1 VRMS, RL = 1 kΩ)
• HD 3: –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 (THS4524) versions.