Overview
The THS3217IRGVR, produced by Texas Instruments, is a high-performance, DC to 800-MHz differential-to-single-ended amplifier designed primarily for interfacing with complementary-current output digital-to-analog converters (DACs). This amplifier is part of a two-stage system that provides low distortion and DC-coupled signal processing, making it suitable for a wide range of high-speed applications.
Key Specifications
| Parameter | Value |
|---|---|
| Bandwidth | 800 MHz (small signal), 500 MHz (large signal, 2 VPP) |
| Gain | Externally configurable; fixed gain of 2 V/V in the input stage |
| Supply Voltage | 8 V to 15.8 V |
| Quiescent Current | 55 mA (with ±6-V supplies) |
| Total Harmonic Distortion | -60 dBc (5 VPP, RLOAD = 100 Ω, 20 MHz) |
| Continuous Output Current | 110 mA |
| Peak Output Current | 175 mA |
| Package | 16-VQFN |
| Operating Temperature | -40°C to 85°C |
Key Features
- Buffered differential inputs and single-ended low impedance output
- Full-power bandwidth of 500 MHz (2 VPP)
- Externally configurable gain
- Simple output DC offset feature
- Support for high-speed DACs, such as the DAC38J82
- Low distortion and DC-coupled signal processing
Applications
- Digital to Analog Converter (DAC) output amplifier
- Wideband Arbitrary Waveform Generator (AWG) output driver
- Predriver to > 20-VPP output amplifier (e.g., THS3091)
- Single-supply, high-capacitive load driver for piezo elements
Q & A
- What is the bandwidth of the THS3217IRGVR?
The THS3217IRGVR has a small-signal bandwidth of 800 MHz and a large-signal bandwidth of 500 MHz (2 VPP). - What is the typical gain of the THS3217IRGVR?
The gain is externally configurable, but the input stage has a fixed gain of 2 V/V. - What is the supply voltage range for the THS3217IRGVR?
The supply voltage range is from 8 V to 15.8 V. - What is the quiescent current of the THS3217IRGVR?
The quiescent current is 55 mA with ±6-V supplies. - What is the total harmonic distortion of the THS3217IRGVR?
The total harmonic distortion is -60 dBc (5 VPP, RLOAD = 100 Ω, 20 MHz). - What are the continuous and peak output currents of the THS3217IRGVR?
The continuous output current is 110 mA, and the peak output current is 175 mA. - In what package is the THS3217IRGVR available?
The THS3217IRGVR is available in a 16-VQFN package. - What is the operating temperature range of the THS3217IRGVR?
The operating temperature range is from -40°C to 85°C. - What are some common applications of the THS3217IRGVR?
Common applications include DAC output amplifiers, AWG output drivers, predriver to > 20-VPP output amplifiers, and single-supply, high-capacitive load drivers for piezo elements. - Does the THS3217IRGVR support high-speed DACs?
Yes, the THS3217IRGVR supports high-speed DACs such as the DAC38J82.
