Philips Semiconductors Linear Products
Product specification
Low power dual voltage comparator
AU2903
DESCRIPTION
PIN CONFIGURATION
The AU2903 consists of two independent precision voltage
comparators with an offset voltage specification as low as 2.0mV
max. for two comparators which were designed specifically to
operate from a single power supply over a wide range of voltages.
Operation from split power supplies is also possible and the low
power supply current drain is independent of the magnitude of the
power supply voltage. These comparators also have a unique
characteristic in that the input common-mode voltage range includes
ground, even though operated from a single power supply voltage.
D and N Packages
1
2
3
4
8
7
6
5
OUTPUT A
V+
A
B
INVERTING INPUT A
NON–INVERTING INPUT A
GND
OUTPUT B
INVERTING INPUT B
NON–INVERTING INPUT B
TOP VIEW
FEATURES
• Wide single supply voltage range 2.0V to 36V or dual
DC
DC
supplies ±1.0V , to ±18V
DC
DC
EQUIVALENT CIRCUIT
• Very low supply current drain (0.8mA) independent of supply
voltage (2.0mW/comparator at 5.0V
)
DC
+
V
• Low input biasing current 25nA
• Low input offset current ±5nA and offset voltage ±2mV
• Input common-mode voltage range includes ground
• Differential input voltage range equal to the power supply voltage
• Low output 250mV at 4mA saturation voltage
3.5µA
100µA
3.5µA
100µA
Q2
Q3
+
Q1
Q4
INPUT
• Output voltage compatible with TTL, DTL, ECL, MOS and CMOS
logic systems
OUTPUT
Q8
– INPUT
Q7
APPLICATIONS
Q5
Q6
• A/D converters
• Wide range VCO
• MOS clock generator
• High voltage logic gate
• Multivibrators
(1 Comparator Only)
ORDERING INFORMATION
DESCRIPTION
TEMPERATURE RANGE
-40°C to +125°C
ORDER CODE
AU2903D
AU2903N
DWG #
0174C
0404B
8-Pin Plastic Small Outline (SO) Package
8-Pin Plastic Dual In-Line Package (DIP)
-40°C to +125°C
300
August 31, 1994
853-1636 13721