| PGA/VGA | VGA |
| Number of channels (#) | 2 |
| BW @ Acl (MHz) | 100 |
| Vs (Max) (V) | 32 |
| Vs (Min) (V) | 9 |
| Acl, min spec gain (V/V) | 0.08 |
| Gain (Max) (dB) | 20 |
| Slew rate (Typ) (V/us) | 85 |
| Operating temperature range (C) | -40 to 85, 0 to 70 |
| Features | Shutdown, Digital Gain Set, Integrated Clamps |
- Separate Low Noise Preamp and PGA Stages
- Shutdown Control
- Preamp Features
- Low Voltage Noise...1.7 nV/
Hz - Accessible Output Pin for External Filtering
- Voltage Feedback, Gmin = -1, 2
- 100 MHz Bandwidth (-3 dB)
- Low Voltage Noise...1.7 nV/
- PGA Features
- Digitally Programmable Gain
- -22 dB to 20 dB Gain/Attenuation Range
- 6 dB Step Resolution
- Output Clamp Protection
- 70 MHz Bandwidth (-3 dB)
- 175 V/μs Slew Rate
- Wide Supply Range ±4.5 V to ±16 V
- PowerPAD? Package for Enhanced Thermal Performance
PowerPAD is a trademark of Texas Instruments Incorporated.
The THS7001 (single) and THS7002 (dual) are high-speed programmable-gain amplifiers, ideal for applications where load impedance can often vary. Each channel on this device consists of a separate low-noise input preamp and a programmable gain amplifier (PGA). The preamp is a voltage-feedback amplifier offering a low 1.7-nV/Hz voltage noise with a 100-MHz (-3 dB) bandwidth. The output pin of the preamp is accessible so that filters can be easily added to the amplifier.
The 3-bit digitally-controlled PGA provides a -22-dB to 20-dB attenuation/gain range with a 6-dB step resolution. In addition, the PGA provides both high and low output clamp protection to prevent the output signal from swinging outside the common-mode input range of an analog-to-digital converter. The PGA provides a wide 70-MHz (-3 dB) bandwidth, which remains relatively constant over the entire gain/attenuation range. Independent shutdown control is also provided for power conservation and multiplexing. These devices operate over a wide ±4.5-V to ±16-V supply voltage range.
