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NE521 Dataheets PDF



Part Number NE521
Manufacturers Philips
Logo Philips
Description High-speed dual-differential comparator/sense amp
Datasheet NE521 DatasheetNE521 Datasheet (PDF)

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 v.

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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-differential comparator/sense amp NE521 BLOCK DIAGRAM (1) INPUT 1A (2) INPUT 1B (12) INPUT 2A (11) INPUT 2B LOGIC FUNCTIONS VID A +, B – VID ≤ –VOS –VOS < VID < VOS VID ≥ VOS X (9) OUTPUT 3Y (8) STROBE 2G STROBE S H H H L X STROBE G H H H X L OUTPUT (Y) L Undefined H H H OUTPUT 1Y STROBE 1G (4) (5) (6) STROBE S X SL00244 Figure 3. Block Diagram ABSOLUTE MAXIMUM RATINGS SYMBOL V+ V– VIDR VIN Supply voltage Positive Negative Differential input voltage Input voltage Common mode Strobe/gate Maximum power dissipation1 Tamb = 25 °C (still-air) N package D package Operating temperature range Storage temperature range Lead soldering temperature (10 sec. max) PARAMETER RATING +7 -7 ±6 ±5 +5.25 UNIT V V V V V PD 1420 1040 0 to 70 –65 to +150 +230 mW mW °C °C °C Tamb Tstg Tsld NOTES: 1. Derate above 25 °C at the following rates: N package at 11.4 mW/°C D package at 8.3 mW/°C 2001 Aug 03 3 Philips Semiconductors Product data High-speed dual-differential comparator/sense amp NE521 DC ELECTRICAL CHARACTERISTICS V+ = +5 V; V– = –5 V, Tamb = 0 °C to +70 °C, unless otherwise specified. LIMITS SYMBOL VOS PARAMETER Input offset voltage At 25 °C Over temperature range Input bias current At 25 °C Over temperature range Input offset current At 25 °C Over temperature range Common-mode voltage range Input current High TEST CONDITIONS V+ = +4.75 V; V– = –4.75 V 6 V+ = +5.25 V, V– = –5.25 V 7.5 V+ = +5.25 V, V– = –5.25 V 1.0 V+ = +4.75 V, V– = –4.75 V V+ = +5.25 V, V– = –5.25 V VIH = 2.7.


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