NE521N

INTEGRATED CIRCUITS NE521 High-speed dual-differential comparator/sense amp Product data Supersedes data of 1994 Aug 31 File under Integrated Circuits, IC11 Handbook 2001 Aug 03 Philips Semiconductors Philips Semiconductors Product data High-speed dual-differential comparator/sense amp NE521 FEATURES 12 ns maximum guaranteed propagation delay 20 µA maximum input bias current TTL compatible strobes and outputs Large common-mode input voltage range Operates from standard supply voltages APPLICATIONS PIN CONFIGURATION D, N Packages INPUT 1A INPUT 1B NC OUTPUT 1Y STROBE 1G STROBE S GND 1 2 3 4 5 6 7 TOP VIEW 14 13 12 11 10 9 8 V+ V– INPUT 2A INPUT 2B NC OUTPUT 2Y STROBE 2G MOS memory sense amp A-to-D conversion High-speed line receiver SL00242 Figure 1. Pin Configuration ORDERING INFORMATION DESCRIPTION 14-Pin Plastic Dual In-Line Package (DIP) 14-Pin SO Package TEMPERATURE RANGE 0 °C to +70 °C 0 °C to +70 °C ORDER CODE NE521N NE521D DWG # SOT27-1 SOT108-1 EQUIVALENT SCHEMATIC V+ 14 R2 R1 R17 R20 R21 R25 Q4 – Q2 + Q10 Q1 Q3 R16 D7 D6 Q6 Q5 Q7 5 Q25 Q26 Q30 Q29 R24 6 Q28 4 2 1 Q9 Q8 Q13 Q11 R14 D2 R22 R23 Q27 7 R4 13 V– R8 Q16 12 11 + – Q18 R10 R5 R3 R15 R6 R7 Q19 R9 D3 Q36 R28 R29 Q35 Q17 Q15 Q14 D4 D5 Q22 Q23 Q24 8 R30 Q32 Q31 Q32 Q34 9 Q20 R18 Q21 R12 V+ R11 R19 R26 R27 R34 SL00243 Figure 2. Equivalent Schematic 2001 Aug 03 2 853-0900 26834 Philips Semiconductors Product data High-speed dual-differentia...