LOW VOLTAGE TELEPHONE SPEECH CIRCUITS

DESCRIPTION The L3281 is an electronic speech circuit developed to replace hybrid circuits in telephone sets that can be operated in parallel with other phones. ■ OPERATION DOWN TO 1.6V / 6.5mA ■ DTMF & BEEP TONE INPUTS ■ EXTERNAL MUTING FOR EARPHONE AND MICROPHONE ■ SUITABLE FOR DYNAMIC

SENSITIVE HALL-EFFECT SWITCHES FOR HIGH-TEMPERATURE OPERATION

RATIOMETRIC, LINEAR HALL-EFFECT SENSORS FOR HIGH-TEMPERATURE OPERATION The A3515– and A3516– are sensitive, temperature-stable linear Hall effect sensors with greatly improved offset characteristics. Ratiometric, linear Hall-effect sensors provide a voltage output that is proportional to the appl

CHOPPER-STABILIZED, PRECISION HALL-EFFECT LATCHES

The A3280--, A3281--, and A3283-- Hall-effect latches are ex tremely temperature-stable and stress-resistant sensors especially suited for operation over extended temperature ranges to +150°C. Superior high-temperature per for mance is made possible through dynamic offset cancellation, which reduc

CHOPPER-STABILIZED, PRECISION HALL-EFFECT LATCHES

The A3280--, A3281--, and A3283-- Hall-effect latches are ex tremely temperature-stable and stress-resistant sensors especially suited for operation over extended temperature ranges to +150°C. Superior high-temperature per for mance is made possible through dynamic offset cancellation, which reduc

CHOPPER-STABILIZED, PRECISION HALL-EF FECT LATCHES

FEATURES ■ Symmetrical Switch Points ■ Resistant to Physical Stress ■ Superior Temperature Stability ■ Output Short-Circuit Protection ■ Operation From Unregulated Supply ■ Reverse Battery Protection ■ Sol id-State Reliability ■ Small Size

DIGITAL CLAMP ON HiTESTER

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