Datenblatt-Suchmaschine für elektronische Bauteile |
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TC911B Datenblatt(PDF) 1 Page - Microchip Technology |
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TC911B Datenblatt(HTML) 1 Page - Microchip Technology |
1 / 7 page TC911A TC911B TC911/A/B-7 9/11/96 © 2001 Microchip Technology Inc. DS21481A Monolithic Auto-Zeroed Operational Amplifers FEATURES s First Monolithic Chopper-Stabilized Amplifier With On-Chip Nulling Capacitors s Offset Voltage .................................................... 5 µV s Offset Voltage Drift .................................. 0.05 µV/°C s Low Supply Current ...................................... 350 µA s High Common-Mode Rejection .................... 116dB s Single Supply Operation ....................... 4.5V to 16V s High Slew Rate ......................................... 2.5V/ µsec s Wide Bandwidth ............................................ 1.5MHz s High Open-Loop Voltage Gain (RL = 10kΩ) ..................................................... 120dB s Low Input Voltage Noise (0.1Hz to 1Hz) ............................................ 0.65 µV P-P s Pin Compatible With ICL7650 s Lower System Parts Count GENERAL DESCRIPTION The TC911 CMOS auto-zeroed operational amplifier is the first complete monolithic chopper-stabilized ampli- fier. Chopper operational amplifiers like the ICL7650/7652 and LTC1052 require user-supplied, external offset com- pensation storage capacitors. External capacitors are not required with the TC911. Just as easy to use as the conventional OP07 type amplifier, the TC911 significantly reduces offset voltage errors. Pinout matches the OP07/ 741/7650 8-pin mini-DIP configuration. Several system benefits arise by eliminating the exter- nal chopper capacitors: lower system parts count, reduced assembly time and cost, greater system reliability, reduced PC board layout effort and greater board area utilization. Space savings can be significant in multiple-amplifier de- signs. Electrical specifications include 15 µV maximum offset voltage, 0.15 µV/°C maximum offset voltage temperature coefficient. Offset voltage error is five times lower than the premium OP07E bipolar device. The TC911 improves off- set drift performance by eight times. The TC911 operates from dual or single power sup- plies. Supply current is typically 350 µA. Single 4.5V to 16V supply operation is possible, making single 9V battery operation possible. The TC911 is available in 2 package types: 8-pin plastic DIP and SOIC. PIN CONFIGURATION (SOIC and DIP) + – + – VDD VSS TC911 –INPUT +INPUT A 2 3 47 B * * A B 6 *NOTE: Internal capacitors. No external capacitors required. MAIN AMPLIFIER LOW IMPEDANCE OUTPUT BUFFER INTERNAL OSCILLATOR (f 200 Hz) OSC ≈ V CORRECTION AMPLIFIER OS + – OUTPUT 1 2 3 4 8 7 6 5 OUTPUT NC + INPUT TC911ACPA TC911BCPA – INPUT NC NC V SS V SS V DD V DD NC = NO INTERNAL CONNECTION 1 2 3 4 8 7 6 5 OUTPUT NC + INPUT TC911ACOA TC911BCOA – INPUT NC NC ORDERING INFORMATION Maximum Temperature Offset Part No. Package Range Voltage TC911ACOA 8-Pin SOIC 0 °C to +70°C15µV TC911ACPA 8-Pin 0 °C to +70°C15µV Plastic DIP TC911BCOA 8-Pin SOIC 0 °C to +70°C30µV TC911BCPA 8-Pin 0 °C to +70°C30µV Plastic DIP FUNCTIONAL BLOCK DIAGRAM |
Ähnliche Teilenummer - TC911B |
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Ähnliche Beschreibung - TC911B |
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