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
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
ABSOLUTE MAXIMUM RATINGS
SYMBOL PARAMETER RATING UNIT
Supply voltage
V+ Positive +7 V
V- Negative -7 V
VIDR Differential input voltage ±6 V
VIN Input voltage
Common mode ±5 V
Strobe/gate +5.25 V
PDMaximum power dissipation1
TA= 25°C (still-air)
F package 1190 mW
N package 1420 mW
D package 1040 mW
TAOperating temperature range
NE521 0 to 70 °C
SE521 -55 to +125 °C
TSTG Storage temperature range -65 to +150 °C
TSOLD 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
Philips Semiconductors Linear Products Product specification
NE/SE521High-speed dual-differential comparator/sense amp
August 31, 1994 307
DC ELECTRICAL CHARACTERISTICS (SE521)
V+=+5V, V-=-5V, TA=-55°C to +125°C, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
LIMITS
UNIT
SYMBOL
PARAMETER
TEST CONDITIONS
Min Typ Max
UNIT
VOS Input offset voltage V+=+4.5V, V-=-4.5V
At 25°C 6 7.5 mV
Over temperature range 15
IBIAS Input bias current V+=+5.5V, V-=-5.5V
At 25°C 7.5 20 µA
Over temperature range 40
IOS Input offset current V+=+5.5V, V-=-5.5V
At 25°C 1.0 5 µA
Over temperature range 12
VCM Common-mode voltage range V+=+4.5V, V-=-4.5V –3 +3 V
VIL Low level input voltage
At 25°C 0.8 V
Over temperature 0.7
VIH High level input voltage 2.0 V
Input current V+=+5.5V, V-=-5.5V
IIH High VIH=2.7V
1G or 2G strobe 50 µA
Common strobe S 100 µA
Input Current
IIL Low VIL=0.5V
1G or 2G strobe -2.0 mA
Common strobe S -4.0 mA
Output voltage VI(S)=2.0V
VOH High V+=+4.5V, V-=-4.5V, ILOAD=-1mA 2.5 3.4 V
VOL Low V+=+4.5V, V-=-4.5V, ILOAD=10mA 0.5
TA=25°C, ILOAD=20mA 0.5
Supply voltage
V+ Positive 4.5 5.0 5.5 V
V- Negative -4.5 -5.0 -5.5
Supply current V+=5.5V, V-=-5.5V, TA=25°C
ICC+ Positive 27 35 mA
ICC- Negative -15 -28
ISC Short-circuit output current -35 -115 mA
Philips Semiconductors Linear Products Product specification
NE/SE521High-speed dual-differential comparator/sense amp
August 31, 1994 308
DC ELECTRICAL CHARACTERISTICS(NE521)
V+=+5V, V-=-5V, TA=0 to 70°C, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
LIMITS
UNIT
SYMBOL
PARAMETER
TEST CONDITIONS
Min Typ Max
UNIT
VOS Input offset voltage V+=+4.75V, V-=-4.75V
At 25°C 6 7.5 mV
Over temperature range 10
IBIAS Input bias current V+=+5.25V, V-=-5.25V
At 25°C 7.5 20 µA
Over temperature range 40
IOS Input offset current V+=+5.25V, V-=-5.25V
At 25°C 1.0 5 µA
Over temperature range 12
VCM Common-mode voltage range V+=+4.75V, V-=-4.75V –3 +3 V
Input current V+=+5.25V, V-=-5.25V
IIH High VIH=2.7V
1G or 2G strobe 50 µA
Common strobe S 100 µA
Input Current
IIL Low VIL=0.5V
1G or 2G strobe -2.0 mA
Common strobe S -4.0 mA
Output voltage VI(S)=2.0V
VOH High V+=+4.75V, V-=-4.75V, ILOAD=-1mA 2.7 3.4 V
VOL Low V+=+5.25V, V-=-5.25V, ILOAD=20mA 0.5
Supply voltage
V+ Positive 4.75 5.0 5.25 V
V- Negative -4.75 -5.0 -5.25
Supply current V+=5.25V, V-=-5.25V, TA=25°C
ICC+ Positive 27 35 mA
ICC- Negative -15 -28
ISC Short-circuit output current -40 -100 mA
AC ELECTRICAL CHARACTERISTICS
TA=25°C, RL=280W CL=15pF V+=5V V-=5V.
SYMBOL
PARAMETER
TO OUTPUT
LIMITS
UNIT
SYMBOL
PARAMETER
TO OUTPUT
Min Typ Max
UNIT
Large-signal switching speed
Propagation delay
tPLH(D) Low to high1Amp Output 8 12
tPHL(D) High to low1Amp Output 6 9 ns
tPLH(S) Low to high2Strobe Output 4.5 10
tPHL(S) High to low2Strobe Output 3.0 6
fMAX Max. operating frequency 40 55 MHz
NOTES:
1. Response time measured from 0V point of ±100mVP-P 10MHz square wave to the 1.5V point of the output.
2. Response time measured from 1.5V point of input to 1.5V point of the output.
Philips Semiconductors Linear Products Product specification
NE/SE521High-speed dual-differential comparator/sense amp
August 31, 1994 309
TYPICAL PERFORMANCE CHARACTERISTICS
20mV 5mV
10mV
Response Time for Various
Input Overdrives Response Time for Various
Input Overdrives Response Time vs Temperature
Propagation Delay for
Various Input Voltages Propagation Delay for
Various Input Voltages Output Voltage vs
Ambient Temperature
Input Bias Current vs
Ambient Temperature Input Offset Current vs
Ambient Temperature
4
3
2
1
0
100
50
0
0 5 10 15 20 25 30
VS = +5V
TA = 25oC
100mV
TIME — nS
INPUT VOLTAGE (mV) OUTPUT VOLTAGE (V)
TA = 25oC
VS = +5V
5mV
10mV100mV
50mV
0 5 10 15 20 25 30
TIME — nS
INPUT VOLTAGE (mV) OUTPUT VOLTAGE (V)
4
3
2
1
0
100
50
0
12
10
8
6
4
2
60 20 –20 +60 +100 +140
TPD (LH)
TPD (HL)
AMBIENT TEMPERATURE (oC)
TESPONSE TIME (ns)
INPUT VOLTAGE (mVp–p)
PROPAGATION DELAY (ns)
VS = +5V
10MHz SQUARE
WAVE INPUT
TA = 25oC
TPD (LH)
TPD (HL)
10 20 30 40 50 60 70
12
10
8
6
20
18
16
14
12
10
8
6
4
2
100 1000
INPUT VOLTAGE (m Vp–p)
PROPAGATION DELAY (ns)
VS = +5V
10MHz SQUARE
WAVE INPUT
TA = 25oC
TPD (LH)
TPD (HL)
4.0
3.0
2.0
1.0
–75 –25 +25 +75 +125
VOL
VOH
AMBIENT TEMPERATURE (oC)
OUTPUT VOLTAGE (V)
–75 –25 +25 +75 +125
AMBIENT TEMPERATURE (oC)
12
11
10
9
8
7
6
INPT BIAS CURRENT ( A)
µ
1.1
1.0
0.9
0.8
0.7
0.6
0.5
–75 –25 +25 +75 +125
AMBIENT TEMPERATURES (oC)
INPUT OFSET CURRENT ( A)
µ