ICL8048

ICL8048 Data Sheet August 1999 File Number 2865.2 Log Amplifier The ICL8048 is a monolithic logarithmic amplifier capable of handling six decades of current input, or three decades of voltage input. It is fully temperature compensated and is nominally designed to provide 1V of output for each decade change of input. For increased flexibility, the scale factor, reference current and offset voltage are externally adjustable. Features Full Scale Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . 0.5% Temperature Compensated Operation . . . . . . 0oC to 70oC Scale Factor, Adjustable. . . . . . . . . . . . . . . . . 1V/Decade Dynamic Current Range. . . . . . . . . . . . . . . . . . . . . 120dB Dynamic Voltage Range . . . . . . . . . . . . . . . . . . . . . . 60dB Dual JFET Input Op Amps PKG. NO. Ordering Information PART NUMBER ICL8048BCJE ERROR TEMPERATURE (25oC) RANGE (oC) 30mV 0 to 70 PACKAGE Functional Diagram ICL8048 VREF Q1 Q2 16 IREF 16 Ld CERDIP F16.3 Pinout ICL8048 (CERDIP) TOP VIEW VIN fIN 2 GND 1 A1 + + A2 VOUT 10 - GND IIN NC A1 OFFSET NULL A1 OFFSET NULL VA1 OUTPUT NC 1 2 3 4 5 6 7 8 16 IREF 15 GAIN 14 NC A2 OFFSET NULL 12 A2 OFFSET NULL 11 V+ 13 10 VOUT 9 NC 7 A1 OUTPUT 15 GAIN 1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999 ICL8048 Absolute Maximum Ratings Supply Voltage . . . . . . . . . . . . . . . . . . ...