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TS271MBM Dataheets PDF



Part Number TS271MBM
Manufacturers STMicroelectronics
Logo STMicroelectronics
Description CMOS PROGRAMMABLE LOW POWER SINGLE OPERATIONAL AMPLIFIER
Datasheet TS271MBM DatasheetTS271MBM 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 .


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