TPA8304 140dB Range (1nA – 10mA) Logarithmic Converter
Description
The TPA8304 is a logarithmic detector optimized for the measurement of low frequency signal power in fiber optic systems and offers a large dynamic range.
Wide measurement range, accuracy and fast step response are achieved, which is very suitable for the requirement of optic system.
The TPA8304 requires only a single positive supply of 5 V. Low quiescent current and chip disable facilitate use in batteryoperated applications.
Features
7 full decades of range: 1nA to 10mA
Law conformance error: 0.2 dB from 10nA to 10mA
Fast step response: raising 0.2μs, falling 5μs for 10nA to 10μA input on INPT
Basic logarithmic intercept at 100 pA
Logarithmic slope of 200 mV/20dB (at the VLOG pin)
Optimized for fiber optic photodiode interfacing
Single-supply operation: 4.5 V to 5.5 V
Power down mode
Applications
High accuracy optical power measurement
Wide range baseband log compression
Versatile detector for APC loops
EDFA
Contact:betty yang
Phone:886-18126447568
Email:sale_seqentech@163.com
Add:Room 1512, 15th Floor, Lucky Centre, 165-171 Wan Chai Road, Wan Chai, Hong Kong