TS3704IPT STMicroelectronics

TS3704 Micropower quad CMOS voltage comparators Features Push-pull CMOS output (no external pull-up resistor required) N Extremely low supply current: 9a typ per DIP14 comparator (Plastic package) Wide single supply range 2.7V to 16V or dual supplies (1.35V to 8V) Extremely low input bias current: 1pA typ D Extremely low input offset current: 1pA typ SO14 (Plastic micropackage) Input common-mode voltage range includes GND 12 High input impedance: 10 typ Last response time: 2s typ. for 5mV overdrive P TSSOP14 Pin-to-pin and functionally compatible with (Thin shrink small outline package) bipolar LM339 Description Pin connections (Top view) The TS3704 is a micropower CMOS quad voltage comparator with extremely low consumption of 9A typ / comparator (20 times less than bipolar Output 2 1 14 Output 3 LM339). The push-pull CMOS output stage allows Output 1 2 13 Output 4 + - power and space saving by eliminating the V 3 12 V CC CC external pull-up resistor required by usual open- Inverting Input 1 4 11 - + Non-inverting Input 4 collector output comparators. + - Non-inverting Input 1 5 10 Inverting Input 4 Inverting Input 2 6 9 - + Non-inverting Input 3 Thus response times remain similar to the LM339. + - Non-inverting Input 2 7 8 Inverting Input 3 February 2007 Rev 3 1/11 www.st.com 11Schematic diagram TS3704 1 Schematic diagram Figure 1. Schematic diagram (for 1/4 TS3704) V+ CC T 10 T T T T 1 2 9 17 R T T TT 1 11 12 18 21 Input - Input + TT 34 Output T 13 T 8 TT 19 20 T T TT T 5 7 14 15 16 T 6 V- CC 2/11