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The FC321SOT(single)are rail-to-rail input and Output voltage feedback amplifier offering low cost. They have a wide input common-mode voltage r ange and output voltage swing,and take the minimum operating supply voltage down to 2.1V and the maximum recommended supply voltage is 5.5V. temperature range. The FC321SOT provide 1MHz bandwidth at a l ow current c onsumption of 60 μA per amplifier. Very low input bias currents of 10pA enable FC321SOT to be used for integrators, photodiode amplifiers, and piezoelectric sensors . Rail-to-rail inputs and outputs are useful to designers b uffering ASIC in s ingle- supply systems. Applications for the series amplifiers include safety monitoring, portable equipment, battery and power supply control, and signal conditioning and interfacing for transducers in very low power systems.

APPLICATIONS

ASIC Input or Output Amplifier Sensor Interface Piezo Electric Transducer Amplifier Medical Instr umenta tion Mobile Communication Audio Output Portable Systems Smoke Detectors Notebook PC PCMCIA Cards Battery –Powered Equipment DSP Interface

FEATURES

  • Low Cost
  • Rail-to-Rail Input and Output 0.8mV Typical VOS
  • Unity Gain Stable
  • Gain Bandwidth Product: 1MHz
  • Very Low Input Bias Currents:
  • Operates on 2.1V to 5.5V Supplies
  • Input Voltage Range:-0.1V to +5.6V with VS = 5.5V
  • Low Supply Current: <60μA
  • Small Packaging：FC321SOT Available in SOT-23-5L PIN CONFIGURATIONS (Top View) FC321SOT 1MHz, 60uA, Rail-to-Rail I/O CMOS Operational Amplifiers SEMICONDUCTOR TECH NIC AL DATA FC321SOT 2019. 11. 21 1/8Revision No : 0 ABSOLUTE MAXIMUM RATINGS NOTE: Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; fun ctional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS: VS = +5V (At RL = 100KΩ connected to Vs/2, and VOUT = Vs/2, unless otherwise noted.) PARAMETER CONDITIONS FC321SOT TYP MIN/MAX OVER TEMPERATURE +25℃ +25℃ 0℃ to 75℃ UNITS MIN/ MAX INPUT CHARACTERISTICS Input Offset Voltage (V OS) Input Bias Cu rrent (IB) Input Offset Curr ent (IOS) Common-Mode Voltage Range (V CM) Common-Mode Rejection Ratio (CMRR) Open-Loop Voltage Gain ( A OL) VS=5.5V VS=5.5V, VCM=-0.1V to 4V VS= 5.5V, VCM=-0.1V to 5.6V RL= 5KΩ ,Vo=0.1V to 4.9V RL=100KΩ,Vo=0.035V to 4.965V ±0.8 -0.1to+5.6 mV pA pA V dB dB dB dB MAX TYP TYP TYP MIN MIN MIN MIN OUTPUT CHARACTERISTICS Output Voltage Swing from Rail Output Current (IOUT) RL = 100KΩ RL = 10KΩ 0.008 0.08 27 20 18.8 V V mA TYP TYP MIN POWER SUPPLY Operating Voltage Range Power Supply Rejection Ratio (PSRR) Quiescent Current (IQ) Vs =+2.5V to + 5.5V VCM= (-VS) + 0.5V IOUT = 0 2.1 5.5 2.5 5.5 V V dB µA MIN MAX MIN MAX FC321SOT 2019. 11. 21 2/8Revision No : 0

Gain-Bandwidth Product (GBP) Slew Rate (SR) Settling Time to 0.1% (tS) Overload Recovery Time CL= 100pF G = +1, 2V Output Step G = +1, 2V Output Step VIN ·Gain = VS 0.52 5.3 2.6 MHz V/µs µs µs TYP TYP TYP TYP NOISE PERFORM ANCE Voltage Noise Density (en) f = 1kHz f = 10kHz nV nV TYP TYP TYPICAL PERFORMANCE CHARACTERISTICS (At TA = +25℃, VS = +5V, and RL = 100KΩ connected to Vs/2, unless otherwise noted.) PARAMETER CONDITIONS FC321SOT TYP MIN/MAX OVER TEMPERATURE +25℃ +25℃ 0℃ to 75℃ UNITS MIN/ MAX ELECTRICAL CHARACTERISTICS(Con.) FC321SOT 2019. 11. 21 3/8Revision No : 0

TYPICAL PERFORMANCE CHARACTERISTICS(Con.) (At TA = +25℃, VS = +5V, and RL = 100KΩ connected to Vs/2, unless otherwise noted.) FC321SOT 2019. 11. 21 4/8Revision No : 0

D imensions In Millimeters Dimensions In Inches Min. Max. Min. Max. A 1.050 1.250 0.041 0.049 A1 0.000 0.100 0.000 0.004 A2 1. 050 1. 150 0. 041 0. 045 b 0.300 0.500 0.012 0.020 c 0.100 0.200 0.004 0.008 D 2.820 3.020 0. 111 0.119 E 1.500 1. 700 0.059 0. 067 E1 2. 650 2. 950 0. 104 0. 116 e 0.950(BSC) 0.037(BSC) e1 1.800 2.000 0.071 0.079 L 0.300 0.600 0.012 0.024 θ 0 8 0 8 Package Outline Dimensions SOT-23-5L Suggested Pad Layout SOT-23-5L FC321SOT 2019. 11. 21 8/8Revision No : 0