General Description

The EL2252 dual comparator replaces the traditional input buffer a attenuator aECL comparator +ECL to TTL translator circuit blocks used in digital equipment. The EL2252 provides a quick 7 ns propagation delay while complying with ±10V inputs. Input accuracy and propagation delay is maintained even with input signal Slew Rates as great as 4000 V/μs. The EL2252 can run on supplies as low as -5.2V and +9V and comply with ECL and CMOS inputs, or use supplies as great as ±18V for much greater input range.

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 compliant

Applications

• Pin receiver for automatic test equipment

• Data communications line receiver

• Frequency counter input

• Pulse squarer