: FEATURES
Low-Cost, Complete Log/Antilog Amplifier ▉
External Components Not Required ▉
Internal Reference; Temperature Compensated ▉
"Small Size: 1.1" x 1.1" x 0.4 ▉
Fast Response: 200kHz Bandwidth (ISIG @ 1µA) ▉
Six Decades Current Operation - 1nA to 1mA ▉
max Error (1%) : 20nA to 200µA ▉
max Error (2%) : 10nA to 1mA ▉
Four Decades Voltages Operation : 1 mV to 10V ▉
max Error (1%) : 1mV to 2V ▉
max Error (2%) : 1mV to 10V ▉
: APPLICATIONS
Log Current or Voltage ▉
Antilog Voltage ▉
Data Compression or Expansion ▉
: GENERAL DESCRIPTION
Models 759N and 759P are low cost, fast response, dc logarithmic amplifiers offering 1% conformance to
ideal log operation over four decades of current operation - 20nA to 200µA, as well as 2% conformance
over four decades of voltage operation - 1mV to 10V
Featuring 200kHz bandwidth at ISIG = 1µA, these new economy designs are the industry’s fastest log/antilog
amplifiers and offer an attractive alternative to in-house designs
Designed for ease of use, models 759N/P are complete, temperature compensated, log or antilog amplifiers
packaged in a small 1.1" x 1.1" x 0.4" epoxy encapsulated module. External components are not required
for logging currents over the complete six decade operating range from 1nA to 1mA. Both the scale
factor (K = 2, 1, 2/3 volt/decade) and log/antilog operation can be selected by simple pin interconnection
In addition both the internal 10µA reference current as well as the offset
voltage may be externally adjusted to improve overall accuracy performance
: Data Sheet