Overview
The THS3201 is a high-performance, wideband current-feedback amplifier designed by Texas Instruments. It is characterized by its high slew rate, low distortion, and wide supply range, making it suitable for various high-speed and high-resolution applications. The THS3201 operates over a supply voltage range of ±3.3 V to ±7.5 V, enabling it to handle a wide range of signal voltages. This amplifier is particularly useful in test, measurement, and automated test equipment (ATE) applications where high voltage swing and low distortion are critical.
Key Specifications
| Parameter | Typical Value | Units |
|---|---|---|
| Unity-Gain Bandwidth | 1.8 GHz | |
| Slew Rate | 6700 V/µs (G = 2 V/V, RL = 100 Ω, 10-V Step) | V/µs |
| Third-Order Intermodulation Distortion (IMD3) | –78 dBc at 20 MHz (G = 10 V/V, RL = 100 Ω, 2-VPP Envelope) | dBc |
| Noise Figure | 11 dB (G = 10 V/V, RG = 28 Ω, RF = 255 Ω) | dB |
| Input Voltage Noise (f > 10 MHz) | 1.65 nV/√Hz | nV/√Hz |
| Input Current Noise (Noninverting, f > 10 MHz) | 13.4 pA/√Hz | pA/√Hz |
| Input Current Noise (Inverting, f > 10 MHz) | 20 pA/√Hz | pA/√Hz |
| Output Drive | 100 mA | mA |
| Power-Supply Voltage Range | ±3.3 V to ±7.5 V | V |
| Operating Free-Air Temperature Range | –40°C to +85°C | °C |
Key Features
- High slew rate of 6700 V/µs, enabling fast signal transitions.
- Low distortion with an IMD3 of –78 dBc at 20 MHz.
- Wide supply range of ±3.3 V to ±7.5 V, making it versatile for various applications.
- High unity-gain bandwidth of 1.8 GHz, suitable for high-speed applications.
- Low noise figure of 11 dB, ensuring minimal noise contribution.
- High output drive capability of 100 mA, suitable for driving high-impedance loads.
- Available in multiple packages including SOIC-8, MSOP-8, and SOT-23, offering flexibility in design.
Applications
- Test and Measurement: Ideal for high-speed and high-resolution measurement equipment.
- Automated Test Equipment (ATE): Suitable for applications requiring high voltage swing and low distortion.
- High-Resolution, High-Sampling Rate ADC and DAC Drivers: Optimized for driving analog-to-digital converters (ADCs) and digital-to-analog converters (DACs) with high accuracy.
- Output Buffers: Effective for buffering small to large step pulses with excellent linearity.
Q & A
- What is the unity-gain bandwidth of the THS3201?
The unity-gain bandwidth of the THS3201 is 1.8 GHz.
- What is the slew rate of the THS3201?
The slew rate of the THS3201 is 6700 V/µs (G = 2 V/V, RL = 100 Ω, 10-V Step).
- What is the noise figure of the THS3201?
The noise figure of the THS3201 is 11 dB (G = 10 V/V, RG = 28 Ω, RF = 255 Ω).
- What is the input voltage noise of the THS3201?
The input voltage noise of the THS3201 is 1.65 nV/√Hz (f > 10 MHz).
- What is the output drive capability of the THS3201?
The output drive capability of the THS3201 is 100 mA.
- What is the power-supply voltage range of the THS3201?
The power-supply voltage range of the THS3201 is ±3.3 V to ±7.5 V.
- In what packages is the THS3201 available?
The THS3201 is available in SOIC-8, MSOP-8, and SOT-23 packages.
- What are some typical applications of the THS3201?
The THS3201 is typically used in test and measurement, ATE, high-resolution ADC and DAC drivers, and output buffers.
- How does the THS3201 handle thermal management?
The THS3201 may incorporate a PowerPAD™ on the underside of the chip, which acts as a heat sink and must be connected to a thermally dissipative plane for proper power dissipation.
- What is the operating free-air temperature range of the THS3201?
The operating free-air temperature range of the THS3201 is –40°C to +85°C.
