Overview
The THS4131ID, part of the THS413x family, is a high-performance, fully differential input/output amplifier manufactured by Texas Instruments. These amplifiers are fabricated using Texas Instruments' state-of-the-art, high-voltage, complementary bipolar process. The THS4131ID is designed to offer excellent performance in high-speed analog signal processing systems, providing advantages such as immunity to external common-mode noise, suppression of even-order nonlinearities, and increased dynamic range. It is suitable for a wide range of applications requiring high-speed, low-noise signal processing.
Key Specifications
| Specification | Value | Unit |
|---|---|---|
| Bandwidth | 170 MHz (VCC = ±15 V, G = 1 V/V) | MHz |
| Slew Rate | 51 V/µs | V/µs |
| Gain Bandwidth Product | 215 MHz | MHz |
| Total Harmonic Distortion (THD) | –102 dBc at 2 VPP, 250 kHz | dBc |
| Voltage Noise | 1.25 nV/√Hz input-referred noise | nV/√Hz |
| 1/f Voltage Noise Corner | 350 Hz | Hz |
| Single Supply Operating Range | 5 V to 30 V | V |
| Quiescent Current (Shutdown) | 860 µA (THS4130 only) | µA |
| Temperature Range | –40°C to +85°C | °C |
| Packages | PowerPAD™ HVSSOP-8, SOIC-8, VSSOP-8 |
Key Features
- High Performance: High bandwidth of 170 MHz, slew rate of 51 V/µs, and gain bandwidth product of 215 MHz.
- Low Noise: 1.25 nV/√Hz input-referred noise and a 1/f voltage noise corner of 350 Hz.
- Single Supply Operation: Operates over a single supply range of 5 V to 30 V.
- Wide Temperature Range: Operates from –40°C to +85°C.
- Power-Down Mode: The THS4130 has a power-down mode with a quiescent current of 860 µA, though this feature is not available in the THS4131ID.
- Differential Signal Processing: Provides a true, fully differential signal path from input to output, offering excellent common-mode noise rejection and dynamic range.
Applications
- Single-Ended to Differential Conversion: Converts single-ended signals into differential signals for high-performance processing.
- Differential ADC Driver: Drives differential analog-to-digital converters (ADCs) with high accuracy and low noise.
- Differential Antialiasing: Used in antialiasing filters to improve signal quality before ADC conversion.
- Differential Transmitter and Receiver: Employed in differential transmission and reception systems for enhanced signal integrity.
- Output Level Shifter: Shifts output signal levels to match different system requirements.
- Medical Ultrasound: Used in medical ultrasound equipment due to its high performance and low noise characteristics.
Q & A
- What is the bandwidth of the THS4131ID amplifier?
The bandwidth of the THS4131ID amplifier is 170 MHz when operated with ±15 V supply and a gain of 1 V/V.
- What is the slew rate of the THS4131ID?
The slew rate of the THS4131ID is 51 V/µs.
- What is the input-referred noise of the THS4131ID?
The input-referred noise of the THS4131ID is 1.25 nV/√Hz.
- What is the operating temperature range of the THS4131ID?
The operating temperature range of the THS4131ID is –40°C to +85°C.
- What packages are available for the THS4131ID?
The THS4131ID is available in PowerPAD™ HVSSOP-8, SOIC-8, and VSSOP-8 packages.
- Does the THS4131ID have a power-down mode?
No, the THS4131ID does not have a power-down mode. This feature is available in the THS4130 but not in the THS4131ID.
- What are some common applications of the THS4131ID?
Common applications include single-ended to differential conversion, differential ADC driver, differential antialiasing, differential transmitter and receiver, output level shifter, and medical ultrasound.
- What is the total harmonic distortion (THD) of the THS4131ID?
The total harmonic distortion (THD) of the THS4131ID is –102 dBc at 2 VPP, 250 kHz.
- What is the common-mode rejection ratio (CMRR) of the THS4131ID?
The common-mode rejection ratio (CMRR) of the THS4131ID is approximately 95 dB at 800 kHz.
- Can the THS4131ID operate on a single supply voltage?
