Overview
The THS4031CDR, produced by Texas Instruments, is an ultra-low voltage noise, high-speed voltage feedback amplifier. This single-amplifier device is part of the THS403x series, which includes both single and dual-amplifier configurations. It is designed for applications requiring low voltage noise and high-speed performance, making it an excellent choice for communications, imaging, and other high-precision analog signal processing tasks.
The THS4031CDR operates over a wide supply voltage range from ±4.5V to ±16V and is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package. It is unity-gain stable with a bandwidth of 120MHz and features a high drive capability of 200mA per channel while drawing only 7.5mA of supply current per channel.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Bandwidth | 100 MHz (G = 2, –3dB) | |
| Slew Rate | 100 V/μs | |
| Voltage Noise | 1.2 nV/√Hz | |
| Total Harmonic Distortion (THD) | –81 dBc (f = 1 MHz, RL = 150 Ω), –96 dBc (f = 1 MHz, RL = 1 kΩ) | |
| Input Offset Voltage | 0.3 mV (typical) | |
| Output Current Drive | 200 mA (typical) | |
| Supply Voltage | ±4.5 V to ±16 V | |
| Supply Current | 7.5 mA per channel | |
| Operating Temperature | 0°C to 70°C | |
| Package Type | 8-pin SOIC |
Key Features
- Ultra-low 1.2 nV/√Hz voltage noise
- High speed: 100 MHz bandwidth and 100 V/μs slew rate
- Very low distortion: THD = –81 dBc (f = 1 MHz, RL = 150 Ω) and THD = –96 dBc (f = 1 MHz, RL = 1 kΩ)
- Low input offset voltage: 0.3 mV (typical)
- High output current drive: 200 mA (typical)
- Offset nulling pins on the THS4031
- Unity-gain stable with 120 MHz bandwidth
- Low supply current: 7.5 mA per channel
Applications
- Low-noise, wide-band amplifiers for industrial applications
- Voltage-controlled oscillators
- Active filters
- Video amplifiers
- Cable drivers
- Ultrasound scanners
- Vector signal transceivers (VST)
- Data acquisition (DAQ) systems
Q & A
- What is the bandwidth of the THS4031CDR?
The bandwidth of the THS4031CDR is 100 MHz at a gain of 2 and –3dB.
- What is the slew rate of the THS4031CDR?
The slew rate of the THS4031CDR is 100 V/μs.
- What is the voltage noise of the THS4031CDR?
The voltage noise of the THS4031CDR is 1.2 nV/√Hz.
- What is the total harmonic distortion (THD) of the THS4031CDR?
The THD of the THS4031CDR is –81 dBc at 1 MHz with a 150 Ω load and –96 dBc at 1 MHz with a 1 kΩ load.
- What is the input offset voltage of the THS4031CDR?
The input offset voltage of the THS4031CDR is typically 0.3 mV.
- What is the output current drive capability of the THS4031CDR?
The output current drive capability of the THS4031CDR is typically 200 mA.
- What is the supply voltage range for the THS4031CDR?
The supply voltage range for the THS4031CDR is from ±4.5 V to ±16 V.
- What is the typical supply current per channel for the THS4031CDR?
The typical supply current per channel for the THS4031CDR is 7.5 mA.
- What is the operating temperature range for the THS4031CDR?
The operating temperature range for the THS4031CDR is from 0°C to 70°C.
- In what package is the THS4031CDR available?
The THS4031CDR is available in an 8-pin SOIC package.
