not recommended
for new designs
8.2 k
q1
gnd
3
q2
q3
o/p
2
3.5 k
1
v b
i/p
4
LC507 data sheet description the LC507 is a low voltage, 3 stage, linear class a amplifier, available in a gennum single-in-line 4 pin micropac. the LC507 features high gain, low current and a wide frequency response. the simplicity of the design allows the LC507 to be used with a minimal amount of external components to produce low voltage miniature electronic devices. the electrical and packaging specifications make the LC507 suitable as a pin for pin replacement for three transitor amplifiers such as the philips om 200 and siemens taa 141 . features ? 76 db typical gain (open loop) ? 1.0 to 3 vdc operating range ? frequency response 20 khz (min) ? total harmonic distortion 2% standard packaging typical hearing aid circuit functional schematic high gain class a amplifier revision date: june 1998 LC507 0.1 1.0 4.7 m 10 + 1 k v b = 1.35 vdc r l = 1.5k 0.1 i trim 1 m 1.0 4.7k 1 2 3 4 v c r s = 3.9k all resistors in ohms, all capacitors in microfarads unless otherwise stated ? 4 pin micropac ? 8 pin plid document no. 500 - 46 - 10 gennum corporation p.o. box 489, stn a, burlington, ontario, canada l7r 3y3 tel. (905) 632-2996 fax: (905) 632-2814 gennum japan corporation: c-101, miyamae village, 2-10-42 miyamae, suginami-ku, tokyo 168-0081, japan tel. (03) 3334-7700 fax:(03) 3247-8839
2 500 - 46 - 10 not recommended
for new designs
1 4 pin connection (in micropac pins 1 to 4 do not exist) absolute maximum ratings parameter symbol conditions min typ max units voltage gain (closed loop) a cl output level= 0.2 mw total harmonic distortion thd output level= 0.2 mw total current i total frequency response at -3 db high low potentiometer resistance i l = 0.7 ma 56 - - - - 40 electrical characteristics conditions: supply voltage 1.3 vdc, transducer current i l = 0.7 ma, ambient temperature 25?c 58 2.0 1.0 20 0.2 500 db % ma khz khz k w 60 3.5 1.2 - - 1000 parameter value / units supply voltage 5 vdc power dissipation 25 mw storage temperature -20 to + 80?c operating temperature -20 to + 80?c caution class 1 esd sensitivity gennum corporation assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement. ? copyright september 1982 gennum corporation. all rights reserved. printed in canada. 5 8 LC507 1 2 3 4 9k 47k 470 4.7 m 0.022 1:1 99966 1k
r2 0.022 1m r f 4.7k
r s 1.0 100 1khz 490
r1 1.0 v in v b = 1.3vdc v out i l 1.0 all external resistors in ohms, all capacitors in microfarads unless otherwise stated fig. 1 test circuit i/p gnd o/p v b n/c n/c n/c n/c document identification product proposal this data has been compiled for market investigation purposes only, and does not constitute an offer for sale. advance information note the product is in a development phase and specifications are subject to change without notice. gennum reserves the right to remove the product at any time. listing the product does not constitute an offer for sale. preliminary data sheet the product is in a preproduction phase and specifications are subject to change without notice. data sheet the product is in production. gennum reserves the right to make changes at any time to improve reliability, function or design, in order to provide the best product possible. revision notes packaging information correction
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