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LF253

STMicroelectronics
Part Number LF253
Manufacturer STMicroelectronics
Description Wide bandwidth dual JFET operational amplifiers
Published Mar 22, 2005
Detailed Description LF253, LF353 Wide bandwidth dual JFET operational amplifiers Features ■ Low power consumption ■ Wide common-mode (up to...
Datasheet PDF File LF253 PDF File

LF253
LF253

Overview
LF253, LF353 Wide bandwidth dual JFET operational amplifiers Features ■ Low power consumption ■ Wide common-mode (up to VCC+) and differential voltage range ■ Low input bias and offset current ■ Output short-circuit protection ■ High input impedance JFET input stage ■ Internal frequency compensation ■ Latch up free operation ■ High slew rate 16 V/µs (typical) Description These circuits are high speed JFET input dual operational amplifiers incorporating well matched, high voltage JFET and bipolar transistors in a monolithic integrated circuit.
The devices feature high slew rates, low input bias and offset currents, and low offset voltage temperature coefficient.
N DIP8 (Plastic package) D SO-8 (Plastic micro package) Pin connections (top view) 1 23+ 4 8 7 - 6 + 5 1 - Output1 2 - Inverting input 1 3 - Non-inverting input 1 4 - VCC5 - Non-inverting input 2 6 - Inverting input 2 7 - Output 2 8 - VCC+ March 2010 Doc ID 2153 Rev 3 1/15 www.
st.
com 15 Schematics 1 Schematics Figure 1.
Schematic diagram (each amplifier) VCC+ LF253, LF353 Non-inverting input Inverting input 100 Ω 200 Ω 100 Ω 30 k Output VCC- 1.
3 k 35 k 1.
3 k 35 k 100 Ω Offset Null1 Offset Null2 8.
2 k 2/15 Doc ID 2153 Rev 3 LF253, LF353 Absolute maximum ratings and operating conditions 2 Absolute maximum ratings and operating conditions Table 1.
Absolute maximum ratings Symbol Parameter Value Unit VCC Vi Vid Rthja Rthjc Supply voltage(1) Input voltage(2) Differential input voltage(3) Thermal resistance junction to ambient(4) SO-8 DIP8 Thermal resistance junction to case(4) SO-8 DIP8 Output short-circuit duration(5) ±18 ±15 ±30 125 85 40 41 Infinite V V V °C/W °C/W Tstg ESD Storage temperature range HBM: human body model(6) MM: machine model(7) CDM: charged device model(8) -65 to +150 °C 1 kV 200 V 1.
5 kV 1.
All voltage values, except differential voltage, are with respect to the zero reference level (ground) of the supply voltages where the zero refer...


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