NE521 amp equivalent, high-speed dual-differential comparator/sense amp.
* 12 ns maximum guaranteed propagation delay
* 20 µA maximum input bias current
* TTL compatible strobes and outputs
* Large common-mode input voltage ra.
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 1.
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.
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