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TS271CAC Dataheets PDF



Part Number TS271CAC
Manufacturers STMicroelectronics
Logo STMicroelectronics
Description CMOS PROGRAMMABLE LOW POWER SINGLE OPERATIONAL AMPLIFIER
Datasheet TS271CAC DatasheetTS271CAC Datasheet (PDF)

TS271C,I,M CMOS PROGRAMMABLE LOW POWER SINGLE OPERATIONAL AMPLIFIER s OFFSET NULL CAPABILITY (by external compensation) s DYNAMIC CHARACTERISTICS ADJUSTABLE ISET s CONSUMPTION CURRENT AND DYNAMIC PARAMETERS ARE STABLE REGARDING THE VOLTAGE POWER SUPPLY VARIATIONS OUTPUT VOLTAGE CAN SWING TO GROUND VERY LARGE ISET RANGE STABLE AND LOW OFFSET VOLTAGE THREE INPUT OFFSET VOLTAGE SELECTIONS s s s s N DIP8 (Plastic Package) DESCRIPTION The TS271 is a low cost, low power single opertional amplifie.

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TS271C,I,M CMOS PROGRAMMABLE LOW POWER SINGLE OPERATIONAL AMPLIFIER s OFFSET NULL CAPABILITY (by external compensation) s DYNAMIC CHARACTERISTICS ADJUSTABLE ISET s CONSUMPTION CURRENT AND DYNAMIC PARAMETERS ARE STABLE REGARDING THE VOLTAGE POWER SUPPLY VARIATIONS OUTPUT VOLTAGE CAN SWING TO GROUND VERY LARGE ISET RANGE STABLE AND LOW OFFSET VOLTAGE THREE INPUT OFFSET VOLTAGE SELECTIONS s s s s N DIP8 (Plastic Package) DESCRIPTION The TS271 is a low cost, low power single opertional amplifier designed to operate with single or dual supplies. This operational amplifier uses the ST silicon gate CMOS process giving it an excellent consumption-speed ratio. This amplifier is ideally suited for low consumption applications. The power supply is externally programmable with a resistor connected between pins 8 and 4. It allows to choose the best consumption-speed ratio and supply current can be minimized according to the required speed. This device is specified for the following ISET current values : 1.5µA, 25µA, 130µA. This CMOS amplifier offers very high input impedance and extremely low input currents. The major advantage versus JFET devices is the very low input currents drift with temperature (see figure 3). ORDER CODE Package Part Number Temperature Range N TS271C/AC/BC 0°C, +70°C TS271I/AI/BI -40°C, +125°C TS271M/AM/BM -55°C, +125°C Example : TS271ACN • • • D • • • 1 - Offset Null 1 2 - Inverting Input 1 3 - Non-inverting Input 1 4 - V CC 5 - Offset Null 2 6 - Output 7-V + CC D SO8 (Plastic Micropackage) PIN CONNECTIONS (top view) 1 2 3 4 + 8 7 6 5 N = Dual in Line Package (DIP) D = Small Outline Package (SO) - also available in Tape & Reel (DT) 8 - I Set November 2001 1/15 TS271C,I,M BLOCK DIAGRAM VCC Current source xI Input differential Second stage Output stage Output VCC E E ABSOLUTE MAXIMUM RATINGS Symbol VCC Vid Vi Io Iin Toper Tstg + Parameter Supply Voltage 3) 1) 2) TS271C/AC/BC TS271I/AI/BI 18 ±18 -0.3 to 18 ±30 ±5 TS271M/AM/BM Unit V V V mA mA Differential Input Voltage Input Voltage Output Current for VCC+ ≥ 15V Input Current Operating Free-Air Temperature Range Storage Temperature Range 0 to +70 -40 to +125 -65 to +150 -55 to +125 °C °C 1. All values, except differential voltage are with respect to network ground terminal. 2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal. 3. The magnitude of the input and the output voltages must never exceed the magnitude of the positive supply voltage. OPERATING CONDITIONS Symbol VCC+ Vicm Supply Voltage Common Mode Input Voltage Range Parameter Value 3 to 16 0 to VCC+ - 1.5 Unit V V 2/15 SCHEMATIC DIAGRAM VCC T24 T 25 T 26 T6 T8 T27 T5 T 10 T 15 R2 T 28 T1 Input T 18 T2 Input R1 C1 T11 T 12 T17 T7 T 23 T3 Output T19 T4 T16 T9 T 13 T 14 T20 T 22 T21 T29 VCC TS271C,I,M 3/15 TS271C,I,M OFFSET VOLTAGE NULL CIRCUIT RESISTOR BIASING VCC+ VCC+ 5 + 1 8 25kΩ VCC VO VO + + R set VCC- R set R set VCC- R set CONNECTED TO GROUND R set CONNECTED TO VCC- (R set VALUE : SEE Fig. 1) OFFSET COMPENSATION GUARANTEED FOR TS271BCX (ISET > 25µA), TS271ACX (ISET > 90µA) Figure 1 : RSET Connected to VCC- VCC = +3V VCC = +5V Rset VCC = +16V VCC = +10V 10MΩ 1MΩ 100kΩ 10kΩ 0.1µA 1µA 10µA 100µA Iset 4/15 TS271C,I,M ELECTRICAL CHARACTERISTICS for ISET = 1.5µA VCC+ = +10V, VCC-= 0V, Tamb = +25°C (unless otherwise specified) TS271C/AC/BC Symbol Parameter Min. Input Offset Voltage VO = 1.4V, Vic = 0V Vio Tmin ≤ Tamb ≤ Tmax TS271C/I/M TS271AC/AI/AM TS271B/C/I/M TS271C/I/M TS271AC/AI/AM TS271B/C/I/M 1) TS271I/AI/BI TS271M/AM/BM Min. Typ. Max. 10 5 2 12 6.5 3.5 Unit Typ. 1.1 0.9 0.25 Max. 10 5 2 12 6.5 3 1.1 0.9 0.25 mV DVio Iio Input Offset Voltage Drift Input Offset Current note Vic = 5V, VO = 5V Tmin ≤ Tamb ≤ Tmax 2 1 100 1 150 8.8 8.7 9 8.8 8.6 50 30 20 100 30 20 2 1 200 1 300 9 µV/°C pA Iib Input Bias Current - see note 1 Vic = 5V, VO = 5V Tmin ≤ Tamb ≤ Tmax High Level Output Voltage Vid = 100mV, RL = 1MΩ Tmin ≤ Tamb ≤ Tmax Low Level Output Voltage Vid = -100mV Large Signal Voltage Gain ViC = 5V, RL = 1MΩ, Vo = 1V to 6V Tmin ≤ Tamb ≤ Tmax Gain Bandwidth Product Av = 40dB, RL = 1MΩ, CL = 100pF, fin = 100kHz Common Mode Rejection Ratio ViC = 1V to 7.4V, Vo = 1.4V Supply Voltage Rejection Ratio VCC+ = 5V to 10V, Vo = 1.4V Supply Current (per amplifier) Av = 1, no load, Vo = 5V Tmin ≤ Tamb ≤ Tmax Output Short Circuit Current Vo = 0V, Vid = 100mV Output Sink Current Vo = VCC, Vid = -100mV Slew Rate at Unity Gain RL = 1MΩ, CL = 100pF, Vi = 3 to 7V Phase Margin at Unity Gain Av = 40dB, RL = 1MΩ CL = 10pF CL = 100pF Overshoot Factor Av = 40dB, RL = 1MΩ CL = 10pF CL = 100pF Equivalent Input Noise Voltage f = 1kHz, Rs = 100Ω 60 60 pA VOH VOL Avd GBP CMR SVR V 50 100 mV V/mV 0.1 80 80 10 15 17 60 60 0.1 80 80 10 15 18 MHz dB dB ICC Io Isink SR φm µA 60 45 0.04 35 10 40 70 30 60 45 0.04 35 10 40 70 30 mA mA V/µs Degrees KOV % nV ----------Hz.


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