EL2252C Datasheet | Elantec Semiconductor

Dual 50 MHz parator Pin Receiver Features Fast response 7 ns Inputs tolerate large overdrives with no speed nor bias current penalties Propagation delay is relatively constant with variations of input Slew Rate overdrive temperature and supply voltage Output provides proper CMOS or TTL logic levels Hysteresis is available on-chip Large voltage gain 8000 V V Not oscillation-prone Can detect 4 ns glitches MIL-STD-883 Rev C pliant General Description The EL2252 dual parator replaces the traditional input buffer a attenuator a ECL parator a ECL to TTL translator circuit blocks used in digital equipment The EL2252 provides a quick 7 ns propagation delay while plying with g 10V inputs Input accuracy and propagation delay is maintained even with input signal Slew Rates as great as 4000 V ms The EL2252 can run on supplies as low as b 5 2V and a 9V and ply with ECL and CMOS inputs or use supplies as great as g 18V for much greater input range The EL2252 has a TTL pin which when grounded restricts the output VOH to a TTL swing to minimize propagation delay When left open the output VOH increases to a valid CMOS level The parators are well behaved and have little tendency to oscillate over a variety of input and output source and load impedances They do not oscillate even when the inputs are held in the linear range of the device To improve output stability in the presence of input noise an internal 60 m V of hysteresis is available by connecting the HYS pin to V b Elantec’s products and facilities ply with MIL-I-45208A and other applicable quality specifications For information on Elantec’s processing see Elantec document QRA-1 ‘‘Elantec’s Processing Monolithic Integrated Circuits’’ Applications Pin receiver for automatic test equipment Data munications line receiver Frequency counter input Pulse squarer Ordering Information Part No EL2252CN EL2252CM Temp Range 0 C to a 75 C 0 C to a 75 C Package 14-Pin...