Part No. : AD8304
Download : Amplifier Detector
The AD8304 is a single-chip logarithmic detector optimized for low-frequency signal power measurements in fiber optic systems. It uses advanced trans-wire technology to provide a wide range of dynamics that are versatile and easy to use. With proprietary design techniques and precision laser trimming, the device also offers a wide measurement range and high accuracy. In most applications, only a single +5 V VP is required, but a 3.0 V to 5.5 V supply is also available; an additional negative supply VN is beneficial for some applications. When using a low supply voltage, the log slope can be easily changed to suit the available range. Low quiescent current and chip disable features are beneficial for battery-powered applications.
1. Product Features
Optimized for fiber optic photodiode interfaces
8 levels of 10 times the range
Single supply: 3.0 V to 5.5 V
Complete high temperature stability
Output provides single, bipolar or three pole low pass filtering
Small 14-Lead TSSOP Package
Precision laser adjustment:
Logarithmic slope: 10 mV/dB (VLOG pin)
Basic log intercept: 100 pA
Easily adjust slope and intercept
Output bandwidth: 10 MHz
Slew rate: 15 V/μs
Low power consumption: quiescent current is approximately 4.5 mA (enable)
Advantages and characteristics
Product Details
Optimized for fiber optic photodiode interfaces
8 levels of 10 times the range
Single supply: 3.0 V to 5.5 V
Complete high temperature stability
Output provides single, bipolar or three pole low pass filtering
Small 14-Lead TSSOP Package
Precision laser adjustment:
Logarithmic slope: 10 mV/dB (VLOG pin)
Basic log intercept: 100 pA
Easily adjust slope and intercept
Output bandwidth: 10 MHz
Slew rate: 15 V/μs
Low power consumption: quiescent current is approximately 4.5 mA (enable)
1. Product Features
Optimized for fiber optic photodiode interfaces
8 levels of 10 times the range
Single supply: 3.0 V to 5.5 V
Complete high temperature stability
Output provides single, bipolar or three pole low pass filtering
Small 14-Lead TSSOP Package
Precision laser adjustment:
Logarithmic slope: 10 mV/dB (VLOG pin)
Basic log intercept: 100 pA
Easily adjust slope and intercept
Output bandwidth: 10 MHz
Slew rate: 15 V/μs
Low power consumption: quiescent current is approximately 4.5 mA (enable)
Advantages and characteristics
Product Details
Optimized for fiber optic photodiode interfaces
8 levels of 10 times the range
Single supply: 3.0 V to 5.5 V
Complete high temperature stability
Output provides single, bipolar or three pole low pass filtering
Small 14-Lead TSSOP Package
Precision laser adjustment:
Logarithmic slope: 10 mV/dB (VLOG pin)
Basic log intercept: 100 pA
Easily adjust slope and intercept
Output bandwidth: 10 MHz
Slew rate: 15 V/μs
Low power consumption: quiescent current is approximately 4.5 mA (enable)
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