THS7002 - 70-MHz High-Speed Programmable-Gain Amplifier, Dual

Updated : 2020-01-09 14:18:14
Description

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.

Products containing the "THS7002" keyword are: THS7002 , THS70021 , THS7002C , THS7002CPW , THS7002CPWP , THS7002CPWP , THS7002CPWPG4 , THS7002CPWPR , THS7002CPWPR , THS7002CPWPRG4 , THS7002EVM , THS7002EVM , THS7002I , THS7002IPW , THS7002IPWP , THS7002IPWP , THS7002IPWPG4 , THS7002IPWPG4 , THS7002IPWPR , THS7002IPWPRG4
Features

  • 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)
  • 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.

Parametrics
StatusACTIVE
ArchitectureVariable Gain (Dig)
Number of channels2
Total Supply Voltage32
BW @ Acl100
Acl, min spec gain0.08
Slew Rate85
Vn at flatband1.7
Vn at 1 kHz2
Iq per channel7
Vos (offset voltage @ 25 C)5
Rail-to-railNo
FeaturesShutdown
RatingCatalog
Operating temperature range-40 to 85
Package GroupHTSSOP|28
Approx. price5.63 | 1ku
Package size: mm2:W x L (PKG)[pf]28HTSSOP[/pf]: 62 mm2: 6.4 x 9.7 (HTSSOP|28)
CMRR88
Input bias current
Offset drift10
GBW2500
Output current95
2nd harmonic71
3rd harmonic75
@ MHz1
Radiation, TID
Radiation, SEL