Philips ne521, se521 DATASHEETS
Philips Semiconductors Linear Products Product specification
NE/SE521High-speed dual-differential comparator/sense amp
305
August 31, 1994 853-0900 13721
FEATURES
•12ns maximum guaranteed propagation delay
•20µA maximum input bias current
•TTL compatible strobes and outputs
•Large common-mode input voltage range
•Operates from standard supply voltages
•Military qualifications pending
APPLICATIONS
•MOS memory sense amp
•A-to-D conversion
•High-speed line receiver
PIN CONFIGURATION
1
2
3
4
5
6
7 8
14
13
12
11
10
9
D, F, N Packages
INPUT 1A
INPUT 1B
NC
OUTPUT 1Y
STROBE 1G
STROBE S
GND
V+
V–
INPUT 2A
INPUT 2B
NC
OUTPUT 2Y
STROBE 2G
TOP VIEW
ORDERING INFORMATION
DESCRIPTION TEMPERATURE RANGE ORDER CODE DWG #
14-Pin Plastic Dual In-Line Package (DIP) 0 to +70°C NE521N 0405B
14-Pin SO Package 0 to +70°C NE521D 0175D
14-Pin Ceramic Dual In-Line Package (CERDIP) 0 to +70°C NE521F 0581B
14-Pin Ceramic Dual In-Line Package (CERDIP) -55°C to +125°C SE521F 0581B
EQUIVALENT SCHEMATIC
Q11
V+
14
2
–
+
1
V–
13
R2 R1
Q2 Q1
Q4
Q3
D7
Q9
R4
Q10 Q8
R5 R3
D6
R17
Q6
R16
Q5
Q13
R15 R6
R9
Q19
Q7
R14
5
D2
Q25
R20
6
R21
Q26
Q30
R24
R23
Q27
Q29
Q28
R25
7
12
+
–
11
V+
R8
Q16
Q15 Q14
R12 R11
Q18
R10
Q17
D4
Q20
Q21
R7
D5
Q22 Q23
R18
R19
D3
8
Q24
Q31
R26
Q32
R27
R28
Q36
R29
R30
Q32
Q35
9
Q34
R34
R22
4
Philips Semiconductors Linear Products Product specification
NE/SE521High-speed dual-differential comparator/sense amp
August 31, 1994
306
LOGIC FUNCTIONS
V
ID
A+, B
–
STROBE S STROBE G OUTPUT (Y)
VID≤-V
OS
H H L
-VOS<VID<V
OS
H H Undefined
VID≥V
OS
H H H
X L X H
X X L H
ABSOLUTE MAXIMUM RATINGS
SYMBOL PARAMETER RATING UNIT
Supply voltage
V+ Positive +7 V
V- Negative -7 V
V
IDR
Differential input voltage ±6 V
V
IN
Input voltage
Common mode ±5 V
Strobe/gate +5.25 V
P
D
Maximum power dissipation
1
TA= 25°C (still-air)
F package 1190 mW
N package 1420 mW
D package 1040 mW
T
A
Operating temperature range
NE521 0 to 70 °C
SE521 -55 to +125 °C
T
STG
Storage temperature range -65 to +150 °C
T
SOLD
Lead soldering temperature (10 sec. max) +300 °C
NOTES:
1. Derate above 25°C at the following rates:
F package at 9.5mW/°C
N package at 11.4mW/°C
D package at 8.3mW/°C
BLOCK DIAGRAM
(12)
INPUT 2A
(11)
INPUT 2B
(9)
OUTPUT 3Y
(8)
STROBE 2G
(1)
(2)
(4)
(5)
INPUT 1A
INPUT 1B
OUTPUT 1Y
STROBE 1G
(60
STROBE S
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