Model 992Enh-Ticha Discrete Op Amp
Updated June 26th, 2014
Model 992Enh-Ticha Datasheet and Specifications PDF
Model 992Enh-Ticha Purchase Online
Model 992Enh-Ticha and 994Enh-Ticha Install Mechanical AppNote AN-17
992Enh-Ticha Discrete Operational Amplifier DIP8
The 992Enh-Ticha is a single high performance discrete operational amplifier designed for professional audio applications and areas where ultra-low noise, low distortion and highly linear uncolored performance is required. It was designed as an performance upgrade replacement universal single op-amp gain block.
The 992Enh-Ticha Discrete OpAmp achieves a new standard of excellence in noise performance with 0.89nV/Rt.Hz @1kHz noise. This ultralow noise is combined with excellent high speed specifications (gain-bandwidth product >50MHz), immeasurably low distortion output, and true precision parameters (>200µV offset voltage, 118dB voltage gain open loop). Although the 992Enh-Ticha's input stage operates at nearly 1mA of collector current to achieve low voltage noise, input bias current is typically less than 1uA.
The all-discrete SMT design utilizes an ultra-precision differential super-matched transistor pair specifically designed to meet the requirements of ultra-low noise and ultra-low THD audio systems. In addition to the enhanced input stage, the 992Enh-Ticha uses high performance temperature stable power supply independent current sources. Supply independent current sources allow the bias to remain locked at the optimum operating point regardless of supply voltage or temperature.
Dual matched pair temperature stable current mirrors, dual matched pair active current loads give the Model 992 it's outstanding power supply rejection performance. The enhanced low distortion Class-A output driver stage can sink or source 150mA allowing this module to drive transformers or headphones directly if required. Each amplifier is tested for noise, offset and distortion and meet or exceed published specifications.
The 992Enh-Ticha op amp is a true bipolar op amp and behaves as such. It does not require a flying ground lead as do other designs on the market. It is a true drop-in replacement upgrade. Because the 992Enh is a true op amp, it can also be operated in single supply applications as long as external biasing has been implemented correctly.
Sonic Imagery Labs also can provide custom variations of this model.
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