TC913A/TC913B Dual Auto-Zeroed Operational Amplifiers Features: Package Type PDIP First Monolithic Dual Auto-Zeroed TC913ACPA Operational Amplifier TC913BCPA Chopper Amplifier Performance Without External OUT A 1 8 V A Capacitors: DD B - + -IN A 2 7 OUT B : 15 V Max. -V OS + - +IN A 3 6 -IN B -V : Drift 0.15 V/C Max. OS V 4 5 +IN B SS - Saves Cost of External Capacitors SOIC Packages Available SOIC TC913ACOA High DC Gain 120dB TC913BCOA Low Supply Current 650 A V 1 OUT A 8 A DD Low Input Voltage Noise: B - + -IN A 2 7 OUT B - 0.65 V (0.1 Hz to 10 Hz) P-P + +IN A 3 - 6 -IN B Wide Common Mode Voltage Range: V 4 5 +IN B SS -V to V - 2V SS DD High Common Mode Rejection 116dB General Description: Dual or Single Supply Operation: The TC913 is the worlds first complete monolithic, dual - 3.3V to 8.3V auto-zeroed operational amplifier. The TC913 sets a - +6.5V to +16V new standard for low-power, precision dual-operational Excellent AC Operating Characteristics: amplifiers. Chopper-stabilized or auto-zeroed amplifi- ers offer low offset voltage errors by periodically sam- - Slew Rate 2.5V/ sec pling offset error, and storing correction voltages on - Unity-Gain Bandwidth 1.5 MHz capacitors. Previous single amplifier designs required Pin Compatible with LM358, OP-14, MC1458, two user-supplied, external 0.1 F error storage correc- ICL7621, TL082, TLC322 tion capacitors much too large for on-chip integra- tion. The unique TC913 architecture requires smaller Applications: capacitors, making on-chip integration possible. Microvolt offset levels are achieved and external Instrumentation capacitors are not required. Medical Instrumentation The TC913 system benefits are apparent when con- Embedded Control trasted with a TC7650 chopper amplifier circuit imple- Temperature Sensor Amplifier mentation. A single TC913 replaces two TC7650s and Strain Gage Amplifier four capacitors. Five components and assembly steps are eliminated. Device Selection Table The TC913 pinout matches many popular dual-opera- Temp. Offset tional amplifiers: OP-04, TLC322, LM358, and ICL7621 Part Number Package Range Voltage are typical examples. In many applications, operating from dual 5V power supplies or single supplies, the TC913ACOA 8-Pin SOIC 0C to 15 V TC913 offers superior electrical performance, and can +70C be a functional drop-in replacement printed circuit TC913ACPA 8-Pin PDIP 0C to 15 V board rework is not necessary. The TC913s low offset +70C voltage error eliminates offset voltage trim TC913BCOA 8-Pin SOIC 0C to 30 V potentiometers often needed with bipolar and low +70C accuracy CMOS operational amplifiers. TC913BCPA 8-Pin PDIP 0C to 30 V The TC913 takes full advantage of Microchips +70C proprietary CMOS technology. Unity gain bandwidth is 1.5 MHz and slew rate is 2.5V/ sec. 2001-2012 Microchip Technology Inc. DS21482D-page 1TC913A/TC913B Functional Block Diagram V V DD SS 48 TC913 V Correction Amplifier OS + Internal A A Oscillator B (f 200 Hz) OSC B * * Low-Impedance -Input A Output Buffer 2 - -Input B 6 + 5 +Input A 1 Output A + +Input B 3 Output B - 7 Main Amplifier 1 of 2 Amplifier Shown *NOTE: Internal capacitors. No external capacitors required. DS21482D-page 2 2001-2012 Microchip Technology Inc.