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LTC1992 Datasheet(PDF) 1 Page - Analog Devices |
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LTC1992 Datasheet(HTML) 1 Page - Analog Devices |
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1 / 42 page  LTC1992 Family 1 1992fb TYPICAL APPLICATION FEATURES DESCRIPTION Low Power, Fully Differential Input/Output Amplifier/Driver Family The LTC®1992 product family consists of five fully differen- tial, low power amplifiers. The LTC1992 is an unconstrained fully differential amplifier. The LTC1992-1, LTC1992-2, LTC1992-5 and LTC1992-10 are fixed gain blocks (with gains of 1, 2, 5 and 10 respectively) featuring precision on-chip resistors for accurate and ultrastable gain. All of the LTC1992 parts have a separate internal common mode feedback path for outstanding output phase balancing and reduced second order harmonics. The VOCM pin sets the output common mode level independent of the input common mode level. This feature makes level shifting of signals easy. The amplifiers’ differential inputs operate with signals ranging from rail-to-rail with a common mode level from the negative supply up to 1.3V from the positive supply. The differential input DC offset is typically 250μV. The rail-to-rail outputs sink and source 10mA. The LTC1992 is stable for all capacitive loads up to 10,000pF. The LTC1992 can be used in single supply applications with supply voltages as low as 2.7V. It can also be used with dual supplies up to ±5V. The LTC1992 is available in an 8-pin MSOP package. Single-Supply, Single-Ended to Differential Conversion APPLICATIONS n Available with Adjustable Gain or Fixed Gain of 1, 2, 5 or 10 n ±0.3% (Max) Gain Error from –40°C to 85°C n 3.5ppm/°C Gain Temperature Coefficient n 5ppm Gain Long Term Stability n Fully Differential Input and Output n CLOAD Stable up to 10,000pF n Adjustable Output Common Mode Voltage n Rail-to-Rail Output Swing n Low Supply Current: 1mA (Max) n High Output Current: 10mA (Min) n Specified on a Single 2.7V to ±5V Supply n DC Offset Voltage <2.5mV (Max) n Available in 8-Lead MSOP Package n Differential Driver/Receiver n Differential Amplification n Single-Ended to Differential Conversion n Level Shifting n Trimmed Phase Response for Multichannel Systems L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. – – + + 5V 5V LTC1992 3 6 VOCM VMID 0V 2.5V 0V VIN 0.01μF 1992 TA01a 4 5 2 7 8 1 10k 10k 10k 10k 5V 0V 5V –5V 2.5V INPUT SIGNAL FROM A ±5V SYSTEM OUTPUT SIGNAL FROM A SINGLE-SUPPLY SYSTEM VIN (5V/DIV) +OUT –OUT (2V/DIV) 5V 0V –5V 5V 0V 1992 TA01b |
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