LOG101AID ,Precision LOGARITHMIC AND LOG RATIO AMPLIFIERELECTRICAL CHARACTERISTICS (Cont.)Boldface limits apply over the specified temperature range, T = – ..
LOG101AID ,Precision LOGARITHMIC AND LOG RATIO AMPLIFIERSBOS242BTYPICAL CHARACTERISTICSAt T = +25°C, V = ±5V, and R = 10kΩ , unless otherwise noted.A S LON ..
LOG101AID ,Precision LOGARITHMIC AND LOG RATIO AMPLIFIERFEATURES DESCRIPTION The LOG101 is a versatile integrated circuit that computes* EASY-TO-USE COMPLE ..
LOG101AID ,Precision LOGARITHMIC AND LOG RATIO AMPLIFIERMAXIMUM RATINGSELECTROSTATICSupply Voltage, V+ to V– ..... 36VDISCHARGE SENSITIVITYInput Voltage .. ..
LOG101AIDR ,Precision LOGARITHMIC AND LOG RATIO AMPLIFIERELECTRICAL CHARACTERISTICSBoldface limits apply over the specified temperature range, T = –5°C to + ..
LOG102AIDG4 ,Logarithmic and Log Ratio Amplifier 14-SOIC 0 to 70
LS312 , MONOLITHIC DUAL NPN TRANSISTORS
LS3360-L , 3 mm (T1) LED, Diffused
LS3360-L , 3 mm (T1) LED, Diffused
LS356B ,Telephone Speech Circuit With Multifrequency Tone Generator Interface‘— SGSmiiltmlS0hl
" mneheat taetmmnee LS356
TELEPHONE SPEECH CIRCUIT WITH MULTIFREQUENCY
TON ..
LS373 , OCTAL D-TYPE TRANSPARENT LATCHES AND EDGE-TRIGGERED FLIP-FLOPS
LS373 , OCTAL D-TYPE TRANSPARENT LATCHES AND EDGE-TRIGGERED FLIP-FLOPS
LOG101AID-LOG101AIDR
Logarithmic Amplifier 8-SOIC -40 to 85
FEA TURES EASY-TO-USE COMPLETE CORE FUNCTION HIGH ACCURACY: 0.01% FSO Over 5 Decades WIDE INPUT DYNAMIC RANGE:
7.5 Decades, 100pA to 3.5mA LOW QUIESCENT CURRENT: 1mA WIDE SUPPLY RANGE: ±4.5V to ±18V
Precision
LOGARITHMIC AND LOG RA TIO AMPLIFIER
DESCRIPTIONThe LOG101 is a versatile integrated circuit that computes
the logarithm or log ratio of an input current relative to a
reference current.
The LOG101 is tested over a wide dynamic range of input
signals. In log ratio applications, a signal current can come
from a photodiode, and a reference current from a resistor in
series with a precision external reference.
The output signal at VOUT is trimmed to 1V per decade of input
current allowing seven decades of input current dynamic
range.
Low DC offset voltage and temperature drift allow accurate
measurement of low-level signals over a wide environmental
temperature range. The LOG101 is specified over the tem-
perature range –5°C to +75°C, with operation over
–40°C to +85°C.
APPLICATIONS LOG, LOG RATIO COMPUTATION:
Communication, Analytical, Medical, Industrial,
Test, and General Instrumentation PHOTODIODE SIGNAL COMPRESSION AMPS ANALOG SIGNAL COMPRESSION IN FRONT
OF ANALOG-TO-DIGITAL (A/D) CONVERTERS
LOG101SBOS242B – MAY 2002 – REVISED JUNE 2004
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Note: Protected under US Patent #6,667,650; other patents pending.
