Overview
The THS4532IPW is a low-power, fully differential amplifier manufactured by Texas Instruments. Designed for applications where power consumption and dissipation are critical, this component is ideal for low-power data acquisition systems and high-density applications. It features precise output common-mode control, enabling DC coupling when driving analog-to-digital converters (ADCs). With its input common-mode range below the negative supply rail and rail-to-rail output, the THS4532IPW can easily interface with single-ended ground-referenced signal sources and SAR or ΔΣ ADCs using a single supply voltage of 2.5V to 5V. Its extended industrial temperature range of -40°C to +125°C makes it suitable for a wide variety of environments.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 2.5 to 5.5 | V | |
| Quiescent Current | 250 | µA | |
| Shutdown Current | 0.5 | µA | Typical |
| Bandwidth | 36 | MHz | |
| Slew Rate | 200 | V/µs | |
| THD | -120 | dBc | 1kHz, 1VRMS, RL=2kΩ |
| Input Voltage Noise | 10 | nV/√Hz | f=1kHz |
| Offset Voltage | ±100 | µV | |
| Offset Voltage Drift | ±3 | µV/°C | -40°C to +125°C |
| Open-Loop Gain | 114 | dB |
Key Features
- Ultra-low power consumption with a quiescent current of 250µA.
- Shutdown mode reduces current to 0.5µA (typical).
- Fully differential architecture with rail-to-rail output.
- High DC precision with low offset voltage and drift.
- Input common-mode range below the negative supply rail.
- Precise output common-mode control for DC coupling with ADCs.
- Extended industrial temperature range (-40°C to +125°C).
Applications
The THS4532IPW is widely used in applications requiring low power and high performance. Its primary applications include:
- Low-power SAR and ΔΣ ADC drivers.
- Differential-to-differential and single-ended-to-differential amplification.
- Wideband differential signal conditioning.
- High-channel-count and high-power-density systems.
- Industrial automation and data acquisition systems.
Q & A
1. What is the operating voltage range of the THS4532IPW?
The THS4532IPW operates with a supply voltage range of 2.5V to 5.5V.
2. What is the typical quiescent current of the THS4532IPW?
The typical quiescent current is 250µA.
3. Does the THS4532IPW support shutdown mode?
Yes, the shutdown mode reduces the current to 0.5µA (typical).
4. What is the bandwidth of the THS4532IPW?
The bandwidth is 36MHz.
5. What is the slew rate of the THS4532IPW?
The slew rate is 200V/µs.
6. What is the THD performance of the THS4532IPW?
The THD is -120dBc at 1kHz, 1VRMS, and RL=2kΩ.
7. What is the input voltage noise of the THS4532IPW?
The input voltage noise is 10nV/√Hz at 1kHz.
8. What is the offset voltage of the THS4532IPW?
The offset voltage is ±100µV.
9. What is the temperature range for the THS4532IPW?
The THS4532IPW operates in an extended industrial temperature range of -40°C to +125°C.
10. What are the typical applications of the THS4532IPW?
Typical applications include low-power SAR and ΔΣ ADC drivers, differential signal conditioning, and high-channel-count systems.
