Philips Semiconductors Linear Products
Product specification
NE522
High-speed dual-differential comparator/sense amp
310
August 31, 1994
853-0901 13721
FEATURES
15ns 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
MOS memory sense amp
A-to-D conversion
High-speed line receiver
PIN CONFIGURATION
INPUT 1A
INPUT 1B
NC
V+
V-
INPUT 2A
INPUT 2B
OUTPUT 1Y
STROBE 1G
GROUND
NC
OUTPUT 2Y
STROBE 2G
D, N Packages
STROBE S
1
2
3
4
5
6
7
14
13
12
11
10
9
8
Top View
BLOCK DIAGRAM
(1)
(2)
(4)
(5)
(6)
(12)
(11)
(9)
(8)
INPUT 1A
INPUT 1B
OUTPUT 1Y
STROBE
STROBE
1G
S
INPUT 2A
INPUT 2B
OUTPUT 2Y
STROBE 2G
ORDERING INFORMATION
DESCRIPTION
TEMPERATURE RANGE
ORDER CODE
DWG #
14-Pin Plastic DIP
0 to +70
C
NE522N
0405B
14-Pin Plastic SO
0 to +70
C
NE522D
0175D
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
RATING
UNITS
V+
V
Single supply voltage
Positive
Negative
+7
-7
V
V
V
IDR
Differential input voltage
+6
V
V
IN
Input voltage
Common-mode
Strobe/gate
+ 5
+5.25
V
V
P
D
Power dissipation
600
mW
T
A
Operating temperature range NE522
0 to 70
C
T
STG
Storage temperature range
-65 to +150
C
T
SOLD
Lead soldering temperature (10sec max)
+300
C
Philips Semiconductors Linear Products
Product specification
NE522
High-speed dual-differential comparator/sense amp
August 31, 1994
311
EQUIVALENT SCHEMATIC
14
2
1
13
12
11
V
V+
V
9
7
4
6
5
8
R2
R1
R17
R16
R20
R21
R2
R14
R6
R15
R3
R5
R4
R8
R10
R7
R9
R12
R11
R19
R18
R26
R27
R28
Q2
Q2
Q4
Q3
Q6
Q5
Q25
Q26
Q28
Q35
Q32
Q31
Q24
Q23
Q22
Q21
Q20
Q16
Q18
Q17
Q19
Q14
Q15
Q9
Q10
Q8
Q13
Q11
D3
D2
D1
D4
D5
D7
D6
13
+
+
Philips Semiconductors Linear Products
Product specification
NE522
High-speed dual-differential comparator/sense amp
August 31, 1994
312
DC ELECTRICAL CHARACTERISTICS
V
=
5V
5%, T
A
= 0 to +70
C, unless otherwise stated.
SYMBOL
PARAMETER
TEST CONDITIONS
LIMITS
UNITS
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
V
OS
Input offset voltage
V+ = +4.75V, V = 4.75V
At 25
C
Over temperature range
6
7.5
10
mV
I
BIAS
Input bias current
V+ = +5.25V, V = 5.25V
At 25
C
Over temperature range
7.5
20
40
A
I
OS
Input offset current
V+ = +5.25V, V = 5.25V
At 25
C
Over temperature range
1.0
5
12
A
V
CM
Common-mode voltage range
V+ = +4.75V, V = 4.75V
3
+3
V
V
IL
Low level input
At 25
C
Over temperature range
0.8
0.7
V
V
IH
High level temperature
2.0
V
I
IH
Input current
V+ = +5.25V, V = 5.25V
High
V
IH
= 2.7V
1G or 2G strobe
Common strobe S
50
100
A
A
I
IL
Low input current
V
IL
= 0.5V
1G or 2G strobe
Common strobe S
2.0
4.0
mA
mA
V
OL
Output voltage Low
V+ = +5.25V, V = 5.25V, V
I(S)
= 2.0V, I
LOAD
=
20mA
0.5
V
I
OH
Output current High
V+ = +4.75V, V = 4.75V, V
OH
= 5.25V
250
A
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, T
A
= 25
C
I
CC+
Positive
27
35
mA
I
CC
Negative
15
28
Philips Semiconductors Linear Products
Product specification
NE522
High-speed dual-differential comparator/sense amp
August 31, 1994
313
AC ELECTRICAL CHARACTERISTICS
T
A
= 25
C, R
L
= 280
, C
L
= 15pF, unless otherwise stated.
SYMBOL
PARAMETER
FROM INPUT
TO OUTPUT
LIMITS
UNITS
SYMBOL
PARAMETER
FROM INPUT
TO OUTPUT
MIN
TYP
MAX
UNITS
I
R
Input resistance
4
k
I
C
Input capacitance
3
pF
Large-signal switching speed
Propagation delay
t
PLH(D)
Low to high
1
Amp
Output
10
15
t
PHL(D)
High to low
1
Amp
Output
8
12
ns
t
PLH(S)
Low to high
2
Strobe
Output
6
13
t
PHL(S)
High to low
2
Strobe
Output
5
9
I
MAX
Maximum operating frequency
25
35
MHz
NOTES:
1. Response time measured from 0V point of +100mV
P-P
10MHz square wave to the 1.5V point of the output.
2. Response time measured from 1.5V point of the input to 1.5V point of the output.
LOGIC FUNCTION TABLE
V
ID
(A
+
, B
)
STRS
STRG
OUTPUT TRANSISTOR
< V
OS
H
H
ON
V
OS
< V
ID
< V
OS
H
H
Undefined
> V
OS
H
H
OFF
X
L
X
OFF
X
X
L
OFF
Philips Semiconductors Linear Products
Product specification
NE522
High-speed dual-differential comparator/sense amp
August 31, 1994
314
EQUIVALENT SCHEMATIC
24
20
16
12
8
4
60
20
+20
+60
+100
+140
AMBIENT TEMPERATURE (
C)
RESPONSE TIME (ns)
Response Time vs Temperature
TPD (LH)
TPD (HL)
12
11
10
9
8
7
6
75
25
+25
+75
+125
AMBIENT TEMPERATURE (
C)
INPUT BIAS CURRENT (
A)
Input Bias Current vs
Ambient Temperature
1.1
1.0
0.9
0.8
0.7
0.6
0.5
75
25
+25
+75
+125
AMBIENT TEMPERATURE (
C)
Input Offset Current vs
Ambient Temperature
INPUT OFFSET CURRENT (
A)
TPD (LH)
TPD (HL)
INPUT VOLTAGE (mVP-P)
10
20
30
40
50
60
70
24
20
16
12
8
4
Propagation Delay for Various
Input Voltages
PROP
AGA
TION DELA
Y
(ns)
VS = 5V
10MN SQUARE WAVE INPUT
TA =
C
TPD (LH)
TPD (HL)
V = 5V
10MHz SQ WAVE
TA =
C
INPUT VOLTAGE (mVP-P)
100
200
500
1000
2000
18
16
14
12
10
8
6
4
2
PROP
AGA
TION DELA
Y
(ns)
Propagation Delay for Various
Input Voltages
3
2
1
0
100
50
0
0
5
10
15
20
25
INPUT VOL
T
AGE (mV)
OUTPUT VOL
T
AGE (V)
TIME (ns)
VS = 5V
TA =
C
Response Time for Various
Input Overdrives
50mV
100mV
5mV
10mV
Response Time for Various
Input Overdrives
4
3
2
1
0
100
50
0
0
5
10
15
20
25
VS = 5V
TA =
C
TIME (ns)
INPUT VOL
T
AGE (mV)
OUTPUT VOL
T
AGE (V)
100mV
50mV
20mV
15mV
5mV
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