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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 A 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 V 1G or 2G strobe Common strobe S VIL = 0.5 V 1G or 2G strobe Common strobe S VI(S) = 2.0 V V+ = +4.75 V; V- = -4.75 V; ILOAD = -1 mA V+ = +5.25 V; V- = -5.25 V; ILOAD = 20 mA 2.7 3.4 0.5 4.75 -4.75 V+ = 5.25 V; V- = -5.25 V; Tamb = 25 C 27 -15 -40 35 -28 -100 mA mA 5.0 -5.0 5.25 -5.25 -3 5 12 +3 A A V 20 40 A A 7.5 10 mV mV Min Typ Max UNIT IBIAS IOS VCM IIH 50 100 A A IIL Input Current Low -2.0 -4.0 mA mA V V V V VOH VOL V+ V- Output voltage High Low Supply voltage Positive Negative Supply current ICC+ ICC- ISC Positive Negative Short-circuit output current AC ELECTRICAL CHARACTERISTICS Tamb = 25 C; RL = 280 ; CL=15 pF; V+ = 5 V; V- = 5 V LIMITS SYMBOL PARAMETER FROM INPUT TO OUTPUT Min Typ Max UNIT Large-signal switching speed Propagation delay tPLH(D) tPHL(D) tPLH(S) tPHL(S) fMAX Low to high1 High to Low to low1 high2 Amp Amp Strobe Strobe Output Output Output Output 40 8 6 4.5 3.0 55 12 9 10 6 MHz ns High to low2 Max. operating frequency NOTES: 1. Response time measured from 0 V point of 100 mVP-P 10 MHz square wave to the 1.5 V point of the output. 2. Response time measured from 1.5 V point of input to 1.5 V point of the output. 2001 Aug 03 4 Philips Semiconductors Product data High-speed dual-differential comparator/sense amp NE521 TYPICAL PERFORMANCE CHARACTERISTICS Response Time for Various Input Overdrives OUTPUT VOLTAGE (V) 4 3 100mV 2 1 0 INPUT VOLTAGE (mV) INPUT VOLTAGE (mV) 20mV 5mV 10mV VS = +5V Tamb = 25oC OUTPUT VOLTAGE (V) 4 3 2 1 0 50mV 100mV 5mV 10mV TESPONSE TIME (ns) Response Time for Various Input Overdrives Tamb = 25oC VS = +5V Response Time vs Temperature 12 10 TPD (LH) 8 6 4 2 TPD (HL) 100 50 0 0 5 10 15 20 25 30 100 50 0 0 5 10 15 20 25 30 60 20 -20 +60 +100 +140 TIME -- nS TIME -- nS AMBIENT TEMPERATURE (oC) Propagation Delay for Various Input Voltages 20 VS = +5V 10MHz SQUARE WAVE INPUT Tamb = 25oC TPD (LH) 10 18 PROPAGATION DELAY (ns) 16 14 12 10 Propagation Delay for Various Input Voltages 4.0 VS = +5V 10MHz SQUARE WAVE INPUT Tamb = 25oC Output Voltage vs Ambient Temperature VOH OUTPUT VOLTAGE (V) 3.0 12 PROPAGATION DELAY (ns) 8 TPD (HL) 6 TPD (LH) 8 TPD (HL) 6 4 2 2.0 1.0 VOL 10 20 30 40 50 60 70 100 1000 INPUT VOLTAGE (m Vp-p) -75 -25 +25 +75 +125 o INPUT VOLTAGE (mVp-p) AMBIENT TEMPERATURE ( C) Input Bias Current vs Ambient Temperature 12 11 INPT BIAS CURRENT ( A) 10 9 8 7 6 1.1 1.0 0.9 0.8 0.7 0.6 0.5 Input Offset Current vs Ambient Temperature INPUT OFSET CURRENT ( A) -75 -25 +25 +75 +125 -75 -25 +25 +75 +125 AMBIENT TEMPERATURE (oC) AMBIENT TEMPERATURES (oC) SL00245 Figure 4. Typical Performance Characteristics 2001 Aug 03 5 Philips Semiconductors Product data High-speed dual-differential comparator/sense amp NE521 DIP14: plastic dual in-line package; 14 leads (300 mil) SOT27-1 2001 Aug 03 6 Philips Semiconductors Product data High-speed dual-differential comparator/sense amp NE521 SO14: plastic small outline package; 14 leads; body width 3.9 mm SOT108-1 2001 Aug 03 7 Philips Semiconductors Product data High-speed dual-differential comparator/sense amp NE521 Data sheet status Data sheet status [1] Objective data Preliminary data Product status [2] Development Qualification Definitions This data sheet contains data from the objective specification for product development. Philips Semiconductors reserves the right to change the specification in any manner without notice. This data sheet contains data from the preliminary specification. Supplementary data will be published at a later date. Philips Semiconductors reserves the right to change the specification without notice, in order to improve the design and supply the best possible product. This data sheet contains data from the product specification. Philips Semiconductors reserves the right to make changes at any time in order to improve the design, manufacturing and supply. Changes will be communicated according to the Customer Product/Process Change Notification (CPCN) procedure SNW-SQ-650A. Product data Production [1] Please consult the most recently issued data sheet before initiating or completing a design. [2] The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL http://www.semiconductors.philips.com. Definitions Short-form specification -- The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook. Limiting values definition -- Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information -- Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Disclaimers Life support -- These products are not designed for use in life support appliances, devices or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Right to make changes -- Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified. Contact information For additional information please visit http://www.semiconductors.philips.com. Fax: +31 40 27 24825 (c) Koninklijke Philips Electronics N.V. 2001 All rights reserved. Printed in U.S.A. Date of release: 05-01 For sales offices addresses send e-mail to: sales.addresses@www.semiconductors.philips.com. Document order number: 9397 750 09192 Philips Semiconductors 2001 Aug 03 8 |
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