NE521 Philips, NE521 Datasheet - Page 2

• Manufacturer Part Number: NE521
• Description: High-speed dual-differential comparator/sense amp
• Manufacturer: Philips

Philips Semiconductors
FEATURES
APPLICATIONS
ORDERING INFORMATION
EQUIVALENT SCHEMATIC
2001 Aug 03
14-Pin Plastic Dual In-Line Package (DIP)
14-Pin SO Package
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
MOS memory sense amp
A-to-D conversion
High-speed line receiver
High-speed dual-differential comparator/sense amp
V+
14
13
12
11
2
1
V+
V–
–
+
+
–
Q15
Q16
R12
Q2
R8
Q14
R2
Q9
R11
R4
DESCRIPTION
Q1
R1
Q18
Q20
Q10
R10
Q4
D4
Q17
R5
D7
Q21
Q8
R7
D5
Q3
Figure 2. Equivalent Schematic
R3
D6
Q13
R15
Q22
Q6
Q19
Q11
R17
R19
2
R9
R6
Q23
Q5
PIN CONFIGURATION
R16
R18
TEMPERATURE RANGE
0 C to +70 C
0 C to +70 C
R14
Q7
Q24
STROBE 1G
OUTPUT 1Y
STROBE S
INPUT 1A
INPUT 1B
5
8
D3
D2
GND
Figure 1. Pin Configuration
NC
Q25
Q31
1
2
3
4
5
6
7
D, N Packages
R20
R26
TOP VIEW
6
ORDER CODE
Q32
R28
R27
NE521N
NE521D
Q26
R22
R21
14
13
12
10
11
9
8
Q36
Q32
R29
R30
V+
V–
INPUT 2A
INPUT 2B
NC
OUTPUT 2Y
STROBE 2G
Q30
Q27
SL00242
R24
R23
853-0900 26834
NE521
Q35
Q34
Product data
SOT108-1
SOT27-1
R34
DWG #
Q29
Q28
SL00243
R25
4
7
9