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 Product data High-speed dual-differential comparator/sense amp FEATURES NE521 PIN CONFIGURATION • 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 D, N Packages APPLICATIONS INPUT 1A 1 14 V+ INPUT 1B 2 13 V– NC 3 12 INPUT 2A OUTPUT 1Y 4 11 INPUT 2B STROBE 1G 5 10 NC STROBE S 6 9 OUTPUT 2Y GND 7 8 STROBE 2G • MOS memory sense amp • A-to-D conversion • High-speed line receiver TOP VIEW SL00242 Figure 1. Pin Configuration ORDERING INFORMATION DESCRIPTION TEMPERATURE RANGE ORDER CODE DWG # 14-Pin Plastic Dual In-Line Package (DIP) 0 °C to +70 °C NE521N SOT27-1 14-Pin SO Package 0 °C to +70 °C NE521D SOT108-1 EQUIVALENT SCHEMATIC V+ 14 R2 R1 1 – Q2 Q5 4 6 5 Q28 Q10 R5 R3 R14 Q11 Q13 Q8 D2 R15 R23 R22 Q27 R6 V– 7 R7 R10 R8 Q18 Q16 11 D6 R24 + R4 12 Q29 Q26 Q7 Q6 Q9 13 R25 Q30 R16 D7 Q1 R21 Q25 Q3 Q4 2 R20 R17 Q17 R9 Q36 Q19 D3 R28 R29 + – Q35 Q15 Q14 D4 D5 Q22 Q23 8 Q20 R12 R11 Q32 Q34 R18 Q21 Q31 R19 V+ 9 R30 Q24 Q32 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 BLOCK DIAGRAM LOGIC FUNCTIONS (1) INPUT 1A (2) INPUT 1B OUTPUT 1Y (4) (12) INPUT 2A (11) INPUT 2B (5) STROBE 1G (6) STROBE S NE521 VID A +, B – STROBE S STROBE G OUTPUT (Y) VID ≤ –VOS H H L –VOS < VID < VOS H H Undefined VID ≥ VOS H H H X L X H X X L H (9) OUTPUT 3Y (8) STROBE 2G SL00244 Figure 3. Block Diagram ABSOLUTE MAXIMUM RATINGS SYMBOL PARAMETER RATING UNIT V+ V– Supply voltage Positive Negative +7 -7 V V VIDR Differential input voltage ±6 V VIN Input voltage Common mode Strobe/gate ±5 +5.25 V V Maximum power dissipation1 Tamb = 25 °C (still-air) N package D package 1420 1040 mW mW PD Tamb Operating temperature range Tstg Storage temperature range Tsld Lead soldering temperature (10 sec. max) 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 0 to 70 °C –65 to +150 °C +230 °C 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 TEST CONDITIONS Min UNIT Typ Max 6 7.5 10 mV mV 7.5 20 40 µA µA 1.0 5 12 µA µA Input offset voltage At 25 °C Over temperature range V+ = +4.75 V; V– = –4.75 V Input bias current At 25 °C Over temperature range V+ = +5.25 V, V– = –5.25 V Input offset current At 25 °C Over temperature range V+ = +5.25 V, V– = –5.25 V VCM Common-mode voltage range V+ = +4.75 V, V– = –4.75 V +3 V IIH Input current High V+ = +5.25 V, V– = –5.25 V VIH = 2.7 V 1G or 2G strobe Common strobe S 50 100 µA µA VIL = 0.5 V 1G or 2G strobe Common strobe S –2.0 –4.0 mA mA 0.5 V V 5.25 –5.25 V V mA IBIAS IOS IIL Input Current Low VOH VOL Output voltage High Low V+ V– Supply voltage Positive Negative Supply current 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 –3 2.7 4.75 –4.75 3.4 5.0 –5.0 V+ = 5.25 V; V– = –5.25 V; Tamb = 25 °C ICC+ Positive 27 35 ICC– Negative –15 –28 ISC Short-circuit output current -40 –100 mA AC ELECTRICAL CHARACTERISTICS Tamb = 25 °C; RL = 280Ω ; 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) Low to high1 Amp Output 8 12 tPHL(D) High to low1 Amp Output 6 9 tPLH(S) Low to high2 Strobe Output 4.5 10 tPHL(S) High to low2 Strobe Output 3.0 6 fMAX Max. operating frequency 40 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 55 ns MHz Philips Semiconductors Product data High-speed dual-differential comparator/sense amp NE521 TYPICAL PERFORMANCE CHARACTERISTICS Response Time for Various Input Overdrives VS = +5V Tamb = 25oC 4 3 100mV 2 5mV 20mV 1 10mV Tamb = 25oC VS = +5V 4 3 2 50mV 5mV 1 100mV 10mV 12 0 INPUT VOLTAGE (mV) 0 INPUT VOLTAGE (mV) Response Time vs Temperature TESPONSE TIME (ns) OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) Response Time for Various Input Overdrives 100 50 0 0 5 10 15 20 25 100 TPD (HL) 6 4 2 0 0 30 5 10 15 20 25 30 60 Propagation Delay for Various Input Voltages 8 TPD (HL) 6 16 14 +140 12 10 TPD (LH) 8 TPD (HL) 6 3.0 2.0 1.0 4 VOL 2 10 20 30 40 50 60 70 100 Input Bias Current vs Ambient Temperature –75 11 1.0 INPUT OFSET CURRENT ( µ A) 1.1 10 9 8 7 6 +25 +75 +125 o 0.9 0.8 0.7 0.6 0.5 –25 +25 +75 +125 AMBIENT TEMPERATURE (oC) –75 –25 +25 +75 +125 AMBIENT TEMPERATURES (oC) Figure 4. Typical Performance Characteristics 2001 Aug 03 –25 AMBIENT TEMPERATURE ( C) Input Offset Current vs Ambient Temperature 12 –75 1000 INPUT VOLTAGE (m Vp–p) INPUT VOLTAGE (mVp–p) INPT BIAS CURRENT ( µ A) +100 VOH OUTPUT VOLTAGE (V) PROPAGATION DELAY (ns) 10 +60 4.0 VS = +5V 10MHz SQUARE WAVE INPUT Tamb = 25oC 18 TPD (LH) –20 Output Voltage vs Ambient Temperature 20 VS = +5V 10MHz SQUARE WAVE INPUT Tamb = 25oC 20 AMBIENT TEMPERATURE (oC) TIME — nS Propagation Delay for Various Input Voltages PROPAGATION DELAY (ns) TPD (LH) 8 50 TIME — nS 12 10 5 SL00245 Philips Semiconductors Product data High-speed dual-differential comparator/sense amp DIP14: plastic dual in-line package; 14 leads (300 mil) 2001 Aug 03 6 NE521 SOT27-1 Philips Semiconductors Product data High-speed dual-differential comparator/sense amp SO14: plastic small outline package; 14 leads; body width 3.9 mm 2001 Aug 03 7 NE521 SOT108-1 Philips Semiconductors Product data High-speed dual-differential comparator/sense amp NE521 Data sheet status Data sheet status [1] Product status [2] Definitions Objective data Development 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. Preliminary data Qualification 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. Product data Production 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. [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. Koninklijke Philips Electronics N.V. 2001 All rights reserved. Printed in U.S.A. Contact information For additional information please visit http://www.semiconductors.philips.com. Fax: +31 40 27 24825 Date of release: 05-01 For sales offices addresses send e-mail to: [email protected]. Document order number: 2001 Aug 03 8 9397 750 09192