●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.
●These fully differential amplifiers feature accurate output common-mode control that allows for dc-coupling when driving analog-to-digital converters (ADCs). This control, coupled with an input common-mode range below the negative rail as well as rail-to-rail output, allows for easy interfacing between single-ended, ground-referenced signal sources. Additionally, these devices are ideally suited for driving both successive-approximation register (SAR) and delta-sigma (ΔΣ) ADCs using only a single +2.5V to +5V and ground power supply.
●The THS4521, THS4522, and THS4524 family of fully differential amplifiers is characterized for operation over the full industrial temperature range from 40°C to +85°C.
● 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)
● NRINegative Rail Input
● RRORail-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)
