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ADI ADL5309ACBZ 10pA To 25mA 188dB Dual Logarithmic Converter

ADI ADL5309ACBZ 10pA To 25mA 188dB Dual Logarithmic Converter

Source:our siteTime:2024-11-08Views:

ADI ADL5309ACBZ 10pA To 25mA 188dB Dual Logarithmic ConverterProduct Description of ADL5309ACBZADL5309ACBZ contains dual monolithic logarithmic transimpedance amplifiers that are optimized for measuring low-frequency and wide dynamic range optical sig…

ADI ADL5309ACBZ 10pA To 25mA 188dB Dual Logarithmic Converter


Product Description of ADL5309ACBZ

ADL5309ACBZ contains dual monolithic logarithmic transimpedance amplifiers that are optimized for measuring low-frequency and wide dynamic range optical signal power in fiber optic systems.

The device produces highly accurate, temperature compensated output voltages that are proportional to the logarithm of the ratio between the input current at the INP1 and INP2 pins and the internally generated reference currents. The logarithmic slope and intercept are both accurately trimmed to a nominal value of 200 mV/decade and 10 pA, respectively. The low-impedance OUT1 and OUT2 logarithmic outputs have the capability to drive a wide range of analog-to-digital converters (ADCs) and other circuits.


Features of ADL5309ACBZ

188 dB electrical dynamic range and 94 dB optical dynamic range

Dual-channel current inputs for direct optical gain measurements

Accurately trimmed logarithmic response:

Logarithmic slope 200 mV/decade

Logarithmic conformance error ±0.4 dB over temperature

Offset trimmed at 70°C to reduce dark current

Integrated LDO: 26 dB PSRR at 60 Hz and 100 pA input current (VCC = 3.0 V)

I2C adjustable:

Photodiode bias voltage

Trade-off between noise and response time at low input currents

Integrated 14-bit ADC

Requires minimal external components

2.040 mm × 1.640 mm, 20-lead WLCSP


Applications of ADL5309ACBZ

Automatic test equipment

Optical power monitoring

Machine automation

Optical modules


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