Op-Amp Logarithmic Circuit at Tia Wayne blog

Op-Amp Logarithmic Circuit. The classic diode/op amp (or transistor/op amp) log amp suffers from limited frequency response, especially at low levels. Log amps of the past were built with hybrid techniques. Figure 1 shows an amplifier that provides a logarithmic output for a linear input current or voltage. The scale of the horizontal axis (the input) is logarithmic, and the ideal transfer characteristic is a straight line. A graph of the transfer characteristic of a log amp is shown in figure 2. A logarithmic amplifier, or a log amplifier, is an electronic circuit that produces an output that is proportional to the logarithm of the applied input. The basic output equation of a log amplifier is v vout = k ln. For high frequency applications, therefore, detecting and true log. Example \(\pageindex{1}\) determine the output voltage for the circuit of figure \(\pageindex{1}\) if \(v_{in} = 1 v\), \(r_i = 50 k\omega \), and \(i_s = 30 na\). The theory and construction of these circuits are actually readily understood. When vin = vx, the logarithm. Log amplifier is a linear circuit in which the output voltage will be a constant times the natural logarithm of the input.

When vin = vx, the logarithm. Log amps of the past were built with hybrid techniques. The theory and construction of these circuits are actually readily understood. The basic output equation of a log amplifier is v vout = k ln. Figure 1 shows an amplifier that provides a logarithmic output for a linear input current or voltage. Log amplifier is a linear circuit in which the output voltage will be a constant times the natural logarithm of the input. A graph of the transfer characteristic of a log amp is shown in figure 2. The scale of the horizontal axis (the input) is logarithmic, and the ideal transfer characteristic is a straight line. A logarithmic amplifier, or a log amplifier, is an electronic circuit that produces an output that is proportional to the logarithm of the applied input. For high frequency applications, therefore, detecting and true log.

operational amplifier Analog divider using log and antilog opamp

Op-Amp Logarithmic Circuit The basic output equation of a log amplifier is v vout = k ln. Log amps of the past were built with hybrid techniques. The scale of the horizontal axis (the input) is logarithmic, and the ideal transfer characteristic is a straight line. Log amplifier is a linear circuit in which the output voltage will be a constant times the natural logarithm of the input. The theory and construction of these circuits are actually readily understood. A logarithmic amplifier, or a log amplifier, is an electronic circuit that produces an output that is proportional to the logarithm of the applied input. A graph of the transfer characteristic of a log amp is shown in figure 2. Figure 1 shows an amplifier that provides a logarithmic output for a linear input current or voltage. For high frequency applications, therefore, detecting and true log. The basic output equation of a log amplifier is v vout = k ln. When vin = vx, the logarithm. The classic diode/op amp (or transistor/op amp) log amp suffers from limited frequency response, especially at low levels. Example \(\pageindex{1}\) determine the output voltage for the circuit of figure \(\pageindex{1}\) if \(v_{in} = 1 v\), \(r_i = 50 k\omega \), and \(i_s = 30 na\).