Overview
The THS4131IDGKR is a fully differential input/output low noise amplifier produced by Texas Instruments. It is part of the THS413x family, which is fabricated using Texas Instruments' state-of-the-art, high-voltage, complementary bipolar process. This amplifier is designed to provide a true, fully differential signal path from input to output, offering high supply capability up to ±15 V. This design ensures excellent common-mode noise rejection performance and low total harmonic distortion, making it suitable for high-voltage differential signal chains.
Key Specifications
| Specification | Value |
|---|---|
| Package | VSSOP (DGK) with 8 pins |
| Operating Temperature Range | –40°C to +85°C |
| Bandwidth | 170 MHz (VCC = ±15 V, G = 1 V/V) |
| Slew Rate | 51 V/µs |
| Gain Bandwidth Product | 215 MHz |
| Total Harmonic Distortion (THD) | –102 dBc at 2 VPP, 250 kHz |
| Voltage Noise | 1.25 nV/√Hz input-referred noise |
| 1/f Voltage Noise Corner | 350 Hz |
| Single Supply Operating Range | 5 V to 30 V |
| Quiescent Current (Shutdown) | 860 µA (THS4130) |
| Common-Mode Rejection Ratio | 95 dB at 800 kHz |
| Input Resistance | 34 MΩ (measured into each input terminal) |
| Output Resistance | 41 Ω (open loop) |
Key Features
- High performance with a bandwidth of 170 MHz and a slew rate of 51 V/µs
- True, fully differential signal path from input to output
- High supply capability up to ±15 V
- Excellent common-mode noise rejection performance (95 dB at 800 kHz)
- Low total harmonic distortion (–102 dBc at 2 VPP, 250 kHz)
- Low voltage noise (1.25 nV/√Hz input-referred noise)
- Wide single supply operating range (5 V to 30 V)
- Low quiescent current in shutdown mode (860 µA)
- Operating temperature range of –40°C to +85°C
Applications
The THS4131IDGKR is suitable for various high-performance applications requiring low noise and high accuracy, such as:
- Differential signal chains in audio and video systems
- High-speed data acquisition systems
- Medical imaging and diagnostic equipment
- Industrial control and automation systems
- Professional audio equipment
Q & A
- What is the bandwidth of the THS4131IDGKR?
The bandwidth of the THS4131IDGKR is 170 MHz when VCC = ±15 V and G = 1 V/V.
- What is the slew rate of the THS4131IDGKR?
The slew rate of the THS4131IDGKR is 51 V/µs.
- What is the total harmonic distortion (THD) of the THS4131IDGKR?
The THD of the THS4131IDGKR is –102 dBc at 2 VPP, 250 kHz.
- What is the common-mode rejection ratio (CMRR) of the THS4131IDGKR?
The CMRR of the THS4131IDGKR is 95 dB at 800 kHz.
- What is the operating temperature range of the THS4131IDGKR?
The operating temperature range of the THS4131IDGKR is –40°C to +85°C.
- What is the package type and pin count of the THS4131IDGKR?
The THS4131IDGKR comes in a VSSOP (DGK) package with 8 pins.
- What is the input-referred noise of the THS4131IDGKR?
The input-referred noise of the THS4131IDGKR is 1.25 nV/√Hz.
- What is the quiescent current in shutdown mode for the THS4131IDGKR?
The quiescent current in shutdown mode for the THS4131IDGKR is 860 µA (for THS4130, similar for THS4131).
- What are some typical applications for the THS4131IDGKR?
The THS4131IDGKR is suitable for differential signal chains in audio and video systems, high-speed data acquisition systems, medical imaging and diagnostic equipment, industrial control and automation systems, and professional audio equipment.
- What is the single supply operating range of the THS4131IDGKR?
The single supply operating range of the THS4131IDGKR is 5 V to 30 V.
- What is the 1/f voltage noise corner frequency of the THS4131IDGKR?
The 1/f voltage noise corner frequency of the THS4131IDGKR is 350 Hz.
