Overview
The THS4131IDG4 is a high-performance, fully differential input/output amplifier from Texas Instruments. It is part of the THS413x family, fabricated using Texas Instruments' state-of-the-art, high-voltage, complementary bipolar process. This amplifier is designed to provide excellent common-mode noise rejection and low total harmonic distortion, making it suitable for a wide range of high-voltage differential signal applications. The THS4131IDG4 operates over a temperature range of –40°C to +85°C and supports single supply voltages from 5 V to 30 V.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Bandwidth | 170 MHz | (VCC = ±15 V, G = 1 V/V) |
| Slew Rate | 51 V/µs | |
| Gain Bandwidth Product | 215 MHz | |
| 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) | |
| Temperature Range | –40°C to +85°C | |
| Common Mode Rejection Ratio (CMRR) | 95 dB | |
| Output Current per Channel | 85 mA | |
| Input Bias Current | 6 µA | |
| Input Offset Voltage | 2 mV | |
| Packages | PowerPAD™ HVSSOP-8, SOIC-8, VSSOP-8 |
Key Features
- High performance with a bandwidth of 170 MHz and a slew rate of 51 V/µs
- Low noise with 1.25 nV/√Hz input-referred noise and a 1/f voltage noise corner of 350 Hz
- Excellent common-mode noise rejection (95 dB at 800 kHz)
- Low total harmonic distortion (–102 dBc at 2 VPP, 250 kHz)
- Single supply operating range from 5 V to 30 V
- Quiescent current in shutdown mode: 860 µA (THS4130)
- Operating temperature range: –40°C to +85°C
- Available in PowerPAD™ HVSSOP-8, SOIC-8, and VSSOP-8 packages
Applications
- Single-ended to differential conversion
- Differential ADC driver
- Differential antialiasing
- Differential transmitter and receiver
- Output level shifter
- Medical ultrasound
Q & A
- What is the bandwidth of the THS4131IDG4 amplifier?
The bandwidth of the THS4131IDG4 is 170 MHz when operated with ±15 V supply and a gain of 1 V/V.
- What is the slew rate of the THS4131IDG4?
The slew rate of the THS4131IDG4 is 51 V/µs.
- What is the common-mode rejection ratio (CMRR) of the THS4131IDG4?
The CMRR of the THS4131IDG4 is 95 dB.
- What is the input-referred noise of the THS4131IDG4?
The input-referred noise of the THS4131IDG4 is 1.25 nV/√Hz.
- What are the available packages for the THS4131IDG4?
The THS4131IDG4 is available in PowerPAD™ HVSSOP-8, SOIC-8, and VSSOP-8 packages.
- What is the operating temperature range of the THS4131IDG4?
The operating temperature range of the THS4131IDG4 is –40°C to +85°C.
- What are some typical applications of the THS4131IDG4?
Typical applications include single-ended to differential conversion, differential ADC driver, differential antialiasing, differential transmitter and receiver, output level shifter, and medical ultrasound.
- How does the power-down mode work on the THS4131IDG4?
The power-down mode is activated by pulling the PD pin to VCC–. In this mode, the amplifier goes into a high-impedance state, significantly reducing power consumption.
- What is the quiescent current in shutdown mode for the THS4130 (similar to THS4131IDG4)?
The quiescent current in shutdown mode for the THS4130 is 860 µA.
- What is the recommended power supply configuration for the THS4131IDG4?
The device should be connected to power supplies through pin 3 (VCC+) and pin 6 (VCC–) with decoupling capacitors close to the device to minimize noise and ensure stable operation).
