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Trans-impedance amplifier

Figure 5.12.4 shows a modification of the circuits illustrated in Fig. 5.12.3. The trans-impedance amplifier (TIA) is used primarily with cooled detectors. The Johnson noise of the feedback resistor decreases as the square root of the resistor temperature [see Eq. (5.11.20)]. Therefore, in cases where the Johnson noise would... Figure 5.12.4 shows a modification of the circuits illustrated in Fig. 5.12.3. The trans-impedance amplifier (TIA) is used primarily with cooled detectors. The Johnson noise of the feedback resistor decreases as the square root of the resistor temperature [see Eq. (5.11.20)]. Therefore, in cases where the Johnson noise would...
Fig. 5.12.4 The trans-impedance amplifier (TIA) often used with cooled detectors. The feedback resistor and Johnson field-effect transistors (JFETs) are placed on the cold stage with the detector. Fig. 5.12.4 The trans-impedance amplifier (TIA) often used with cooled detectors. The feedback resistor and Johnson field-effect transistors (JFETs) are placed on the cold stage with the detector.
See other pages where Trans-impedance amplifier is mentioned: [Pg.1006]    [Pg.514]    [Pg.325]    [Pg.512]    [Pg.1006]    [Pg.514]    [Pg.325]    [Pg.512]    [Pg.236]    [Pg.301]   


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Amplifiers

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