Adl5310acpz-reel7 lfcsp-24 logarithmic amplifier has the lowest price
Description
Adl53101 low cost, dual logarithmic amplifier converts the input current in a wide dynamic range into a linear DB output voltage. It is optimized to determine the optical power in wide optical communication system applications, including lasers, optical switches, amplifiers and amplifier control circuits, as well as system monitoring. The device is equivalent to a dual ad8305 with enhanced dynamic range (120dB).
Although the adl5310 contains two independent signal channels with configurable transfer function constants (slope and intercept), the internal bias circuit is shared between the channels to improve power consumption and channel matching. A dual converter in a single, compact lfcsp package produces a spatial efficiency solution for measuring gain or attenuation. Only one power supply is required; The optional dual supply operation provides additional flexibility.
Adl5310 adopts an optimized trans linear structure, which uses the accurate logarithmic relationship between the base emitter voltage and collector current of bipolar transistor, and appropriately scales through the accurate current to compensate for the inherent temperature dependence. The input and reference current pins receive current from 3Na to 3mA (between input and reference is limited to ± 60dB) into a fixed voltage defined by vsum potential.
The vsum potential is set to 500mv internally, but can be grounded externally for dual power operation and other applications that require voltage input. The logarithmic slope is set to 10mV / DB (200mV / 10 years), which can be modified by external resistance and independent buffer amplifier. The logarithmic intercept of each channel is defined by a single reference current and is set to 3 by connecting a 665k Ω resistor between the 2.5vvref pin and the inputs of IRF1, IRF1 and IRF2 μ A。 The combination of vrdz and VREF can effectively set the x-intercept to 40 years lower than the reference current, which is usually 300pa for a reference current of 3 µ a.
When using adl5310 for gain or absorbance measurement, it may be valuable to use a separately optimized reference current. The reference current input is also a fully functional dynamic input, allowing logarithmic ratio operation with the reference input current as the denominator. Adl5310 specifies operation from - 40 ° C to + 85 ° C. features
2 independent channels optimized for photodiode interface
6-year input dynamic range
Legal compliance 0.3 dB, from 3 Na to 3 Ma
Temperature stable logarithmic output
Nominal slope 10 MV / DB (200 mV / DEC), externally expandable
The interceptor can be set independently by an external resistor
User configurable output buffer amplifier
Single or dual power operation
Space saving, 24 core 4mm × 4mm LFCSP
Low power: < 10 Ma quiescent current
application
Gain and absorbance measurement
Multichannel power monitoring
Universal baseband log compression
Adl53101 low cost, dual logarithmic amplifier converts the input current in a wide dynamic range into a linear DB output voltage. It is optimized to determine the optical power in wide optical communication system applications, including lasers, optical switches, amplifiers and amplifier control circuits, as well as system monitoring. The device is equivalent to a dual ad8305 with enhanced dynamic range (120dB).
Although the adl5310 contains two independent signal channels with configurable transfer function constants (slope and intercept), the internal bias circuit is shared between the channels to improve power consumption and channel matching. A dual converter in a single, compact lfcsp package produces a spatial efficiency solution for measuring gain or attenuation. Only one power supply is required; The optional dual supply operation provides additional flexibility.
Adl5310 adopts an optimized trans linear structure, which uses the accurate logarithmic relationship between the base emitter voltage and collector current of bipolar transistor, and appropriately scales through the accurate current to compensate for the inherent temperature dependence. The input and reference current pins receive current from 3Na to 3mA (between input and reference is limited to ± 60dB) into a fixed voltage defined by vsum potential.
The vsum potential is set to 500mv internally, but can be grounded externally for dual power operation and other applications that require voltage input. The logarithmic slope is set to 10mV / DB (200mV / 10 years), which can be modified by external resistance and independent buffer amplifier. The logarithmic intercept of each channel is defined by a single reference current and is set to 3 by connecting a 665k Ω resistor between the 2.5vvref pin and the inputs of IRF1, IRF1 and IRF2 μ A。 The combination of vrdz and VREF can effectively set the x-intercept to 40 years lower than the reference current, which is usually 300pa for a reference current of 3 µ a.
When using adl5310 for gain or absorbance measurement, it may be valuable to use a separately optimized reference current. The reference current input is also a fully functional dynamic input, allowing logarithmic ratio operation with the reference input current as the denominator. Adl5310 specifies operation from - 40 ° C to + 85 ° C. features
2 independent channels optimized for photodiode interface
6-year input dynamic range
Legal compliance 0.3 dB, from 3 Na to 3 Ma
Temperature stable logarithmic output
Nominal slope 10 MV / DB (200 mV / DEC), externally expandable
The interceptor can be set independently by an external resistor
User configurable output buffer amplifier
Single or dual power operation
Space saving, 24 core 4mm × 4mm LFCSP
Low power: < 10 Ma quiescent current
application
Gain and absorbance measurement
Multichannel power monitoring
Universal baseband log compression