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> THS4513 wideband 1.6GHZ differential opamp lo noise (2
THS4513 wideband 1.6GHZ differential opamp lo noise (2
The THS4513 is a wideband, fully differential op amp designed for 3.3-5 V data acquisition systems. It has very low noise at 2.2 nV/rtHz, and extremely low harmonic distortion of -75 dBc HD2 and -86 dBc HD3 at 70 MHz with 2-Vpp output, G = 0 dB, and 200-Ohm load. Slew rate is very high at 5100 V/ s and with settling time of 2.9 ns to 1% (2 V step) it is ideal for pulsed applications. It is designed for minimum gain of 0 dB.
To allow for dc coupling to ADCs, its unique output common-mode control circuit maintains the output common-mode voltage within 5 mV offset (typ) from the set voltage, when set within 0.5 V of mid-supply, with less than 4 mV differential offset voltage. The common-mode set point is set to mid-supply by internal circuitry, which may be over-driven from an external source.
The input and output are optimized for best performance with their common-mode voltages set to mid-supply. Along with high performance at low power supply voltage, this makes for extremely high performance single supply 5 V data acquisition systems.
