View NE521_233527.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

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

▲Up To Search▲

Price & Availability of NE521

	To Download NE521 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .