ver: 1.2 jun 03, 2009 tel: 886-3-5788833 http://www.gmt.com.tw 1 G1540 global mixed-mode technology inc. low power quadruple operational amplifiers features ? wide supply operation range +4.5v to +16v ? input common voltage range beyond the rails ? rail-to-rail output voltage swing ? low input offset voltage 3mv (typical) ? wide bandwidth (unit gain) 4mhz ? low quiescent current: 500 a per amplifier ? large dc voltage gain 100db (typical) ? slew-rate 5.5v/us ? unit-gain stable applications ? portable equipment ? lcd-tv equipment ? battery-powered equipment ? asic input or output amplifier ? low power/low voltage applications general description the G1540 consists of four independent, high gain, internally frequency compensated operational amplifi- ers which were designed to operate from a single power supply over a wide range of voltages. operation from split power supplies is also possible. the input common mode range of the G1540 can be beyond the rails, and the G1540 are with rail-to-rails output volt- age swing. the quiescent current is 500 a per ampli- fier. the G1540 also feature fast slewing and settle-times, as well as high output drive capability of 60ma (source/sink).these features make these amplifiers ideal for use as reference buffers for tft-lcd. other applications include battery power, portable devices, and anywhere low power consumption is important. the G1540 is housed in a 14-pin sop, tssop and tqfn4x4-16 packages. ordering information order number marking temp. range package (green) G1540p21u G1540 -40 c~ +85 c sop-14 G1540d21u G1540 -40 c~ +85 c tssop-14 G1540r81u 1540 -40 c~ +85 c tqfn4x4-16 note: p2 : sop-14 d2:tssop-14 r8: tqfn4x4-16 1: bonding code u: tape & reel pin configuration 1 2 3 4 5 6 7 vouta vina- sop-14/tssop-14 G1540 14 13 12 11 10 9 8 vina+ vcc vinb+ vinb- voutb voutc vinc- vinc+ vss vind+ vind- voutd + + + + G1540 tqfn4x4-16 voutc 1 2 3 4 12 11 10 9 vind- vnd+ vss vinc+ 16 15 14 13 vinc- vinb- voutb thermal pad voutd nc vouta nc vina- vina+ vcc vinb+ 5 6 7 8 note: recommend connecting the thermal pad to the ground for excellent power dissipation. 1 2 3 4 5 6 7 vouta vina- sop-14/tssop-14 G1540 14 13 12 11 10 9 8 vina+ vcc vinb+ vinb- voutb voutc vinc- vinc+ vss vind+ vind- voutd + + + + G1540 tqfn4x4-16 voutc 1 2 3 4 12 11 10 9 vind- vnd+ vss vinc+ 16 15 14 13 vinc- vinb- voutb thermal pad voutd nc vouta nc vina- vina+ vcc vinb+ 5 6 7 8 note: recommend connecting the thermal pad to the ground for excellent power dissipation.
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