The THS4561 fully differential
amplifier (FDA) offers a simple interface from single-ended sources to the
differential output required by precision analog-to-digital converters (ADCs).
Designed for a very low,8-Hz, 1/f voltage noise corner
and low, 130-dB total harmonic distortion (THD) while consuming only a775-µA quiescent current, the THS4561 is well suited
for power-sensitive data acquisition (DAQ) systems where high performance is
required with the best signal-to-noise ratio (SNR) and spurious-free dynamic range
(SFDR) through the amplifier and ADC combination.
The THS4561 features the required
negative rail input when interfacing a DC-coupled, ground-centered, source signal to
a single-supply, differential-input ADC. Low DC error and drift terms support the
emerging high-speed and high-resolution successive approximation register (SAR) and
delta-sigma (ΔΣ) ADC input requirements. A 2.85-V to 12.6-V supply range with a
flexible output common-mode setting with low headroom to the supplies supports a
wide range of ADC input and digital-to-analog converter (DAC) output
requirements.
The THS4561 device is characterized
for operation from –40°C to +125°C.
The THS4561 fully differential
amplifier (FDA) offers a simple interface from single-ended sources to the
differential output required by precision analog-to-digital converters (ADCs).
Designed for a very low,8-Hz, 1/f voltage noise corner
and low, 130-dB total harmonic distortion (THD) while consuming only a775-µA quiescent current, the THS4561 is well suited
for power-sensitive data acquisition (DAQ) systems where high performance is
required with the best signal-to-noise ratio (SNR) and spurious-free dynamic range
(SFDR) through the amplifier and ADC combination.
The THS4561 features the required
negative rail input when interfacing a DC-coupled, ground-centered, source signal to
a single-supply, differential-input ADC. Low DC error and drift terms support the
emerging high-speed and high-resolution successive approximation register (SAR) and
delta-sigma (ΔΣ) ADC input requirements. A 2.85-V to 12.6-V supply range with a
flexible output common-mode setting with low headroom to the supplies supports a
wide range of ADC input and digital-to-analog converter (DAC) output
requirements.
The THS4561 device is characterized
for operation from –40°C to +125°C.