140 dB Range (1nA-10mA) Logarithmic Converter,SGM834 Replace AD8304.
FEATURES

 Patents Pending Proprietary Circuits

 Seven Full Decades Range

 3V to 5.5V Single-Supply Operation

 Low Power and Temperature Stable

 Precise Trimmed Scaling

 10mV/dB Logarithmic Slope at VLOG Pin

 100pA Basic Logarithmic Intercept

 Simple Slope and Intercept Adjustments

 15V/μs Slew Rate

 3.3mA (TYP) Quiescent Current (Enabled)

 9μA (TYP) Shutdown Current (Disabled)

 Available in a Green TSSOP-14 Package


PIN CONFIGUTION
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AD8304 AD8304.pdf

No.11713

FEATURES

• Optimized for Fiber Optic Photodiode Interfacing

• Eight Full Decades of Range

  Law Conformance 0.1 dB from 1 nA to 1 mA

• AD8304Single-Supply Operation (3.0 V– 5.5 V)

•  Complete and Temperature Stable

•  Accurate Laser-Trimmed Scaling:

  Logarithmic Slope of 10 mV/dB (at VLOG Pin)

  Basic Logarithmic Intercept at 100 pA

  Easy Adjustment of Slope and Intercept

• Output Bandwidth of 10 MHz, 15 V/ s Slew Rate

• 1-, 2-, or 3-Pole Low-Pass Filtering at Output

• Miniature 14-Lead Package (TSSOP)

• Low Power: ~4.5 mA Quiescent Current (Enabled)

PIN CONFIGUTION
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