●The THS4531 is a low-power, fully-differential op amp with input common-mode range below the negative rail and rail-to-rail output. The device is designed for low-power data acquisition systems and high density applications where power consumption and dissipation is critical.
●The device features accurate output common-mode control that allows for dc coupling when driving analog-to-digital converters (ADCs). This control, coupled with the input common-mode range below the negative rail and rail-to-rail output, allows for easy interface from single-ended ground-referenced signal sources to successive-approximation registers (SARs), and delta-sigma (ΔΣ) ADCs using only single-supply 2.5-V to 5-V power. The THS4531 is also a valuable tool for general-purpose, low-power differential signal conditioning applications.
●The THS4531 is characterized for operation over the extended industrial temperature range from –40°C to +125°C. The following package options are available:
● 8-pin SOIC (MSOP) and VSSOP (D and DGK)
● 10-pin WQFN (RUN)
● Ultra Low Power:
● Voltage: 2.5 V to 5.5 V
● Current: 250 µA
● Power-Down Mode: 0.5 µA (typ)
● Fully-Differential Architecture
● Bandwidth: 36 MHz
● Slew Rate: 200 V/µs
● THD: –120 dBc at 1 kHz (1 VRMS, RL= 2 kΩ)
● Input Voltage Noise: 10 nV/√Hz (f = 1 kHz)
● High DC Accuracy:
● VOS Drift: ±4 µV/°C (–40°C to +125°C)
● AOL: 114 dB
● Rail-to-Rail Output (RRO)
● Negative Rail Input (NRI)
● Output Common-Mode Control
Part 3D Model
