LM2901
Low power quad voltage comparator
Features
■
Wide single supply voltage range or dual
supplies for all devices: +2V to +36V or ±1V to
±18V
Very low supply current (1.1mA) independent
of supply voltage (1.4mW/comparator at +5V)
Low input bias current: 25nA typ.
Low input offset current: ±5nA typ.
Input common-mode voltage range includes
negative rail
Low output saturation voltage:
250mV typ. (I
O
= 4mA)
Differential input voltage range equal to the
supply voltage
TTL, DTL, ECL, MOS, CMOS compatible
outputs
■
■
■
■
■
■
■
N
DIP14
(Plastic package)
D
SO-14
(Plastic micropackage)
P
TSSOP14
(Thin shrink small outline package)
Pin connections
(top view)
Output 2 1
Output 1 2
V
+
CC 3
4
5
6
7
14
13
12
11
10
9
8
Output 3
Output 4
-
V
CC
Non-inverting input 4
Inverting input 4
Non-inverting input 3
Inverting input 3
Description
This device consists of four independent precision
voltage comparators. All these comparators are
designed specifically to operate from a single
supply over a wide range of voltages. Operation
from split power supplies is also possible.
These comparators also have a unique
characteristic in that the input common-mode
voltage range includes the negative rail even
though operated from a single power supply
voltage.
Inverting input 1
Non-inverting input 1
Inverting input 2
Non-inverting input 2
December 2007
Rev 5
1/13
13
STMICROELECTRONICS [ STMICROELECTRONICS ]
