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LOG2112AIDW

Precision Logarithmic and Log Ratio Amplifier with On-Chip 2.5V Voltage Reference

Packaging

Package | PIN: DW | 16
Temp: I (-40 to 85)
Carrier: Partial Tube
Qty Price
1-9 $22.66
10-24 $21.07
25-99 $20.33
100-249 $17.76
250-499 $16.90
500-749 $15.56
750-999 $13.96
1000+ $13.92

Features

  • EASY-TO-USE COMPLETE FUNCTION
  • OUTPUT SCALING AMPLIFIER
  • ON-CHIP 2.5V VOLTAGE REFERENCE
  • HIGH ACCURACY: 0.2% FSO Over 5 Decades
  • WIDE INPUT DYNAMIC RANGE:
       7.5 Decades, 100pA to 3.5mA
  • LOW QUIESCENT CURRENT: 1.75mA
  • WIDE SUPPLY RANGE: ±4.5V to ±18V
  • PACKAGES: SO-14 (narrow) and SO-16
  • APPLICATIONS
    • LOG, LOG RATIO:
         Communication, Analytical, Medical, Industrial, Test, General Instrumentation
    • PHOTODIODE SIGNAL COMPRESSION AMP
    • ANALOG SIGNAL COMPRESSION IN FRONT OF ANALOG-TO-DIGITAL (A/D) CONVERTER
    • ABSORBANCE MEASUREMENT
    • OPTICAL DENSITY MEASUREMENT

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Texas Instruments  LOG2112AIDW

The LOG112 and LOG2112 are versatile integrated circuits that compute the logarithm or log ratio of an input current relative to a reference current. VLOGOUT of the LOG112 and LOG2112 are trimmed to 0.5V per decade of input current, ensuring high precision over a wide dynamic range of input signals.

The LOG112 and LOG2112 features a 2.5V voltage reference that may be used to generate a precision current reference using an external resistor.

Low DC offset voltage and temperature drift allow accurate measurement of low-level signals over the specified temperature range of –5°C to +75°C.