Overview
The THS7001CPWPR, produced by Texas Instruments, is a high-speed programmable-gain amplifier. This device is part of the THS7001 series, which includes single-channel (THS7001) and dual-channel (THS7002) variants. The THS7001 is designed for applications where load impedance can often vary, making it ideal for scenarios requiring flexible gain adjustment.
Each channel of the THS7001 consists of a separate low-noise input preamp and a programmable gain amplifier (PGA). The preamp is a voltage-feedback amplifier with low voltage noise and a high bandwidth, while the PGA offers a wide gain/attenuation range with digital control.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Bandwidth (Preamp) | 100 MHz | (-3 dB) |
| Bandwidth (PGA) | 70 MHz | (-3 dB) |
| Voltage Noise (Preamp) | 1.7 nV/√Hz | |
| Gain/Attenuation Range (PGA) | -22 dB to 20 dB | |
| Gain Step Resolution (PGA) | 6 dB | |
| Slew Rate (PGA) | 175 V/µs | |
| Supply Voltage Range | ±4.5 V to ±16 V | |
| Operating Temperature Range | 0°C to 70°C (C-suffix), -40°C to 85°C (I-suffix) | |
| Package Type | HTSSOP (PWP) with 20 pins |
Key Features
- Separate Low Noise Preamp and PGA Stages: Allows for independent optimization of the preamp and PGA stages.
- Shutdown Control: Independent shutdown control for power conservation and multiplexing.
- Low Voltage Noise Preamp: 1.7 nV/√Hz voltage noise.
- Accessible Output Pin for External Filtering: Enables easy addition of filters to the amplifier.
- Digitally Programmable Gain: 3-bit digital control with a -22 dB to 20 dB gain/attenuation range and 6 dB step resolution.
- Output Clamp Protection: Prevents the output signal from swinging outside the common-mode input range of an analog-to-digital converter.
- Wide Supply Range: Operates over a ±4.5 V to ±16 V supply voltage range.
- PowerPAD Package: Enhances thermal performance.
Applications
The THS7001CPWPR is suitable for various high-speed applications where variable gain and low noise are critical. These include:
- Medical Imaging Equipment: For signal amplification and conditioning in medical imaging devices.
- Test and Measurement Equipment: For applications requiring high bandwidth and programmable gain.
- Audio and Video Systems: For signal processing and amplification in professional audio and video equipment.
- Industrial Automation: For signal conditioning and amplification in industrial control systems.
Q & A
- What is the bandwidth of the preamp stage in the THS7001?
The bandwidth of the preamp stage is 100 MHz (-3 dB).
- What is the gain/attenuation range of the PGA stage?
The PGA stage offers a -22 dB to 20 dB gain/attenuation range with a 6 dB step resolution.
- What is the slew rate of the PGA stage?
The slew rate of the PGA stage is 175 V/µs.
- What is the supply voltage range for the THS7001?
The device operates over a ±4.5 V to ±16 V supply voltage range.
- What type of package does the THS7001CPWPR come in?
The THS7001CPWPR comes in a HTSSOP (PWP) package with 20 pins.
- What is the operating temperature range for the THS7001CPWPR?
The operating temperature range is 0°C to 70°C (C-suffix) and -40°C to 85°C (I-suffix).
- Does the THS7001 have shutdown control?
- What is the voltage noise of the preamp stage?
The voltage noise of the preamp stage is 1.7 nV/√Hz.
- Can filters be added to the preamp stage?
- What is the purpose of the PowerPAD package?
The PowerPAD package enhances thermal performance by acting as a heatsink.
