Overview
The THS7530PWP is a high-speed, fully differential, continuously variable gain amplifier produced by Texas Instruments. Fabricated using Texas Instruments' state-of-the-art BiCom III SiGe complementary bipolar process, this device is designed for applications requiring high bandwidth and precise gain control. The THS7530PWP features a DC-coupled architecture with voltage-controlled gain, high-impedance differential inputs, and low-impedance differential outputs. It operates over an industrial temperature range of –40°C to +85°C, making it suitable for a wide range of environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | HTSSOP (PWP) | - |
| Pins | 14 | - |
| Operating Temperature Range | –40 to 85 | °C |
| Bandwidth | 300 | MHz |
| Noise Voltage | 1.1 | nV/√Hz |
| Noise Figure | 9 | dB |
| Second Harmonic Distortion (HD2) | –65 | dBc at 32 MHz |
| Third Harmonic Distortion (HD3) | –61 | dBc at 32 MHz |
| Intermodulation Distortion (IMD3) | –62 | dBc at 70 MHz |
| Output IP3 | 21 | dBm at 70 MHz |
| Gain Range | 11.6 to 46.5 | dB |
| Gain Slope | 38.8 | dB/V |
| Output Common-Mode Voltage Control Range | 1.75 to 3.25 | V above negative supply |
| Output Voltage Limiting Error | ±25 | mV |
| Power Supply Voltage | 5 | V |
| Quiescent Current | 40 to 48 | mA |
Key Features
- Low Noise: 1.1 nV/√Hz noise voltage and 9 dB noise figure.
- Low Distortion: –65 dBc HD2, –61 dBc HD3 at 32 MHz, and –62 dBc IMD3 at 70 MHz.
- High Bandwidth: 300 MHz bandwidth.
- Continuously Variable Gain: Gain range from 11.6 dB to 46.5 dB with a gain slope of 38.8 dB/V.
- Fully Differential Input and Output: High-impedance differential inputs and low-impedance differential outputs.
- Output Common-Mode Voltage Control: Control range from 1.75 V to 3.25 V above the negative supply.
- Output Voltage Limiting: Limits output voltage swing to prevent saturating following stages.
- Power-Down Mode: Reduces quiescent current to 350 µA with an 80-dB forward isolation.
Applications
- Time Gain Amplifiers in Ultra Sound, Sonar, and Radar: Utilizes the continuously variable gain and high bandwidth.
- Automatic Gain Control in Communication and Video: Precise gain control for maintaining signal amplitude.
- System Gain Calibration in Communications: Ensures consistent signal levels across different stages.
- Variable Gain in Instrumentation: Suitable for various measurement and testing equipment.
Q & A
- What is the operating temperature range of the THS7530PWP?
The operating temperature range is –40°C to +85°C.
- What is the bandwidth of the THS7530PWP?
The bandwidth is 300 MHz.
- What is the noise figure of the THS7530PWP?
The noise figure is 9 dB.
- What is the gain range of the THS7530PWP?
The gain range is from 11.6 dB to 46.5 dB.
- How does the gain control work on the THS7530PWP?
The gain control is linear in dB with a gain slope of 38.8 dB/V, controlled by a differential voltage from 0 V to 0.9 V.
- What is the purpose of the output common-mode voltage control?
The output common-mode voltage control sets the common-mode voltage of the differential output, with a range from 1.75 V to 3.25 V above the negative supply.
- How does the output voltage limiting feature work?
The output voltage limiting feature limits the output voltage swing to prevent saturating following stages, with a typical error of ±25 mV compared to the clamp voltage.
- What is the power-down mode of the THS7530PWP?
The power-down mode reduces the quiescent current to 350 µA, with an 80-dB forward isolation to minimize interference.
- What are some common applications of the THS7530PWP?
Common applications include time gain amplifiers in ultra sound, sonar, and radar, automatic gain control in communication and video, system gain calibration in communications, and variable gain in instrumentation.
- What is the package type and pin count of the THS7530PWP?
The package type is HTSSOP (PWP) with 14 pins.
