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                                                                                                                                                LM143 LM343 High Voltage Operational Amplifier
                                                                                                                       February 1995




  LM143 LM343 High Voltage
  Operational Amplifier
  General Description                                                   Features
  The LM143 is a general purpose high voltage operational               Y   Wide supply voltage range                g 4 0V to g 40V
  amplifier featuring operation to g 40V complete input over-           Y   Large output voltage swing                         g 37V
  voltage protection up to g 40V and input currents compara-            Y   Wide input common-mode range                       g 38V
  ble to those of other super-b op amps Increased slew rate             Y   Input overvoltage protection                  Full g 40V
  together with higher common-mode and supply rejection                 Y   Supply current is virtually independent of supply voltage
  insure improved performance at high supply voltages Oper-                 and temperature
  ating characteristics in particular supply current slew rate
  and gain are virtually independent of supply voltage and
  temperature Furthermore gain is unaffected by output
                                                                        Unique Characteristics
  loading at high supply voltages due to thermal symmetry on
                                                                        Y   Low input bias current                          8 0 nA
  the die The LM143 is pin compatible with general purpose              Y   Low input offset current                        1 0 nA
  op amps and has offset null capability                                Y   High slew rate essentially independent of temperature
  Application areas include those of general purpose op                     and supply voltage                            2 5V ms
  amps but can be extended to higher voltages and higher                Y   High voltage gain virtually independent of resistive
  output power when externally boosted For example when                     loading temperature and supply voltage       100k min
  used in audio power applications the LM143 provides a                 Y   Internally compensated for unity gain
  power bandwidth that covers the entire audio spectrum In              Y   Output short circuit protection
  addition the LM143 can be reliably operated in environ-               Y   Pin compatible with general purpose op amps
  ments with large overvoltage spikes on the power supplies
  where other internally-compensated op amps would suffer
  catastrophic failure
  The LM343 is similar to the LM143 for applications in less
  severe supply voltage and temperature environments


  Connection Diagram
                                                              Metal Can Package
                                                                  Top View




                                                                                                 TL H 7783 

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