Texas Instruments THS4531 Low Power Fully-Differential Amplifier
Texas Instruments THS4531 is an ultra-low-power, fully-differential amplifier with an input common-mode range below the negative rail and rail-to-rail output. This op amp is designed for low-power data acquisition systems and high-density applications in which power consumption and dissipation are critical.
THS4531 fully-differential amplifier 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 the easy interface from single-ended ground-referenced signal sources to successive-approximation registers (SARs) and delta-sigma ADCs using only single-supply 2.5V to 5V power. The Texas Instruments THS4531 is also a valuable tool for general-purpose, low-power differential signal conditioning applications.
Features
- Ultra-Low Power
- Voltage: 2.5V to 5.5V
- Current: 250µA
- Power-Down Mode: 0.5µA (typ)
- Fully-Differential Architecture
- Bandwidth: 36MHz
- Slew Rate: 200V/µs
- THD: -120dBc at 1kHz (1VRMS, RL= 2kΩ)
- Input Voltage Noise: 10nV/√Hz (f = 1kHz)
- High DC Accuracy
- VOS Drift: ±4µV/°C (-40°C to +125°C)
- AOL: 114dB
- Rail-to-Rail Output (RRO)
- Negative Rail Input (NRI)
- Output Common-Mode Control
Applications
- Low-Power SAR, ΔΣ ADC Driver
- Low Power, High Performance
- Differential to Differential Amplifier
- Single-Ended to Differential Amplifier
- Low-Power, Wide-Bandwidth Differential Driver
- Low-Power, Wide-Bandwidth Differential Signal Conditioning
- High Channel Count and Power Dense Systems
Evaluation Module
Texas Instruments LAUNCHXL-F28379D C2000 LaunchPad
Complete low-cost development board for the Delfino F2837xD microcontrollers.
Published: 2012-04-24
| Updated: 2022-03-11