Overview
The THS4532IPWR is a dual, ultra-low power, fully-differential amplifier produced by Texas Instruments. This device is designed for low-power data acquisition systems and high-density applications where power consumption and dissipation are critical. It operates with a supply voltage range of 2.5 V to 5.5 V and features a quiescent operating current of 250 µA per channel. The THS4532IPWR is characterized by its rail-to-rail output and input common-mode range below the negative rail, making it suitable for a variety of differential signal conditioning applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VS+ to VS-) | 2.5 | 5.5 | V | |
| Quiescent Operating Current per Channel | 230 | 250 | 330 | µA |
| Power-Down Quiescent Current | 0.5 | 2 | µA | |
| Bandwidth (Small-Signal, G = 1 V/V) | 36 | MHz | ||
| Slew Rate | 200 | V/µs | ||
| Total Harmonic Distortion (THD) at 1 kHz | -120 | dBc | ||
| Input Voltage Noise at 1 kHz | 10 | nV/√Hz | ||
| Input Offset Voltage (VOS) | ±100 | µV | ||
| Operating Junction Temperature | -40 | 125 | °C |
Key Features
- Ultra Low Power: Quiescent operating current of 250 µA per channel and power-down mode current of 0.5 µA.
- Fully-Differential Architecture: Allows for accurate output common-mode control, enabling dc coupling when driving analog-to-digital converters (ADCs).
- Rail-to-Rail Output (RRO): Output voltage range extends to the supply rails.
- Negative Rail Input (NRI): Input common-mode range extends below the negative supply rail.
- High DC Accuracy: Low input offset voltage (±100 µV) and low input offset voltage drift (±3 µV/°C).
- Wide Bandwidth and High Slew Rate: Small-signal bandwidth of 36 MHz and slew rate of 200 V/µs.
- Output Common-Mode Control: Allows for precise control of the output common-mode voltage.
Applications
- Low-Power SAR and ΔΣ ADC Drivers: Ideal for driving successive-approximation register (SAR) and delta-sigma (ΔΣ) analog-to-digital converters.
- Differential to Differential Amplifier: Converts single-ended signals to differential signals.
- Single-Ended to Differential Amplifier: Converts single-ended inputs to differential outputs.
- Low-Power, Wide-Bandwidth Differential Driver: Suitable for driving differential signals in low-power, high-bandwidth applications.
- High Channel Count and Power Dense Systems: Used in systems requiring multiple channels with low power consumption.
Q & A
- What is the supply voltage range for the THS4532IPWR?
The supply voltage range is from 2.5 V to 5.5 V.
- What is the quiescent operating current per channel for the THS4532IPWR?
The quiescent operating current per channel is typically 250 µA.
- What is the power-down quiescent current for the THS4532IPWR?
The power-down quiescent current is typically 0.5 µA.
- What is the bandwidth of the THS4532IPWR at a gain of 1 V/V?
The small-signal bandwidth at a gain of 1 V/V is 36 MHz.
- What is the slew rate of the THS4532IPWR?
The slew rate is 200 V/µs.
- What is the total harmonic distortion (THD) at 1 kHz for the THS4532IPWR?
The THD at 1 kHz is -120 dBc.
- What is the input voltage noise at 1 kHz for the THS4532IPWR?
The input voltage noise at 1 kHz is 10 nV/√Hz.
- What is the operating junction temperature range for the THS4532IPWR?
The operating junction temperature range is from -40°C to 125°C.
- What are the typical applications of the THS4532IPWR?
Typical applications include low-power SAR and ΔΣ ADC drivers, differential to differential amplifiers, single-ended to differential amplifiers, and high channel count and power dense systems.
- What package options are available for the THS4532IPWR?
The device is available in a 16-pin TSSOP (PW) package.
