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TC913BCPA Datasheet(PDF) 1 Page - TelCom Semiconductor, Inc |
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TC913BCPA Datasheet(HTML) 1 Page - TelCom Semiconductor, Inc |
1 / 4 page 3-269 TELCOM SEMICONDUCTOR, INC. 7 6 5 4 3 1 2 8 DUAL AUTO-ZEROED OPERATIONAL AMPLIFIERS FEATURES s First Monolithic Dual Auto-Zeroed Operational Amplifier s Chopper Amplifier Performance Without External Capacitors —VOS ........................................................ 15 µV Max —VOS Drift ....................................... 0.15 µV/°C Max — Saves Cost/Assembly of Four "Chopper" Capacitors s SOIC Packages Available s High DC Gain ................................................. 120dB s Low Supply Current ...................................... 650 µA s Low Input Voltage Noise (0.1 Hz to 10 Hz) ........................................ 0.65 µV P-P s Wide Common-Mode Voltage Range ................................. VSS to VDD – 2V s High Common-Mode Rejection .................... 116dB s Dual or Single Supply Operation .... ±3.3V to ±8.3V +6.5V to +16V s Excellent AC Operating Characteristics — Slew Rate ............................................. 2.5V/ µsec — Unity-Gain Bandwidth ............................. 1.5MHz s Pin Compatible With LM358, OP-14, MC1458, ICL7621, TL082, TLC322 GENERAL DESCRIPTION The TC913 is the world's first complete monolithic, dual auto-zeroed operational amplifier. The TC913 sets a new standard for low-power, precision dual-operational amplifiers. Chopper-stabilized or auto-zeroed amplifiers offer low offset voltage errors by periodically sampling offset error, and storing correction voltages on capacitors. Previous single amplifier designs required two user-sup- plied, external 0.1 µF error storage correction capacitors — much too large for on-chip integration. The unique TC913 architecture requires smaller capacitors, making on-chip integration possible. Microvolt offset levels are achieved and external capacitors are not required. The TC913 system benefits are apparent when con- trasted with a TC7650 chopper amplifier circuit implemen- tation. A single TC913 replaces two TC7650's and four capacitors. Five components and assembly steps are elimi- nated. The TC913 pinout matches many popular dual- operational amplifiers: OP-04, TLC322, LM358, and ICL7621 are typical examples. In many applications, operating from dual 5V power supplies or single supplies, the TC913 offers superior electrical performance, and can be a functional drop-in replacement; printed circuit board rework is not necessary. The TC913's low offset voltage error eliminates offset voltage trim potentiometers often needed with bipolar and low-accuracy CMOS operational amplifiers. The TC913 takes full advantage of TelCom's propri- etary CMOS technology. Unity gain bandwidth is 1.5 MHz and slew rate is 2.5 V/ µsec. – + + – VDD VSS TC913 A 48 B * A B *NOTE: Internal capacitors. No external capacitors required. MAIN AMPLIFIER LOW IMPEDANCE OUTPUT BUFFER INTERNAL OSCILLATOR (f 200 Hz) OSC ≈ V CORRECTION AMPLIFIER OS + – –INPUT A –INPUT B 1 OF 2 AMPLIFIERS SHOWN OUTPUT A 2 6 –INPUT A –INPUT B 3 5 OUTPUT B 7 1 * FUNCTIONAL BLOCK DIAGRAM ORDERING INFORMATION Maximum Temp. Offset Part No. Package Range Voltage TC913ACOA 8-Pin SOIC 0 °C to +70°C15µV TC913ACPA 8-Pin Plastic DIP 0 °C to +70°C15µV TC913BCOA 8-Pin SOIC 0 °C to +70°C30µV TC913BCPA 8-Pin Plastic DIP 0 °C to +70°C30µV PIN CONFIGURATION (SOIC and DIP) 1 2 3 4 6 5 –IN B 7 8 OUT A –IN A +IN A V SS V SS VDD VDD +IN B TC913ACPA TC913BCPA TC913ACOA TC913BCOA OUT B A B 1 2 3 4 6 5 –IN B 7 8 OUT A –IN A +IN A +IN B OUT B A B TC913A/B-8 9/3/96 TC913A TC913B |
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