Philips AU2901D, AU2901N Datasheet
Philips Semiconductors Linear Products Product specification
AU2901Quad voltage comparator
289
August 31, 1994 853-1637 13721
DESCRIPTION
The AU2901 consists of four independent precision voltage
comparators, with an offset voltage specification as low as 2.0mV
max for each comparator, 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 they are operated from a single power
supply voltage.
The AU2901 was designed to directly interface with TTL and CMOS.
When operated from both plus and minus power supplies, the
AU2901 will directly interface with MOS logic where their low power
drain is a distinct advantage over standard comparators.
FEATURES
•Wide single supply voltage range 2.0VDC to 36VDC or dual
supplies ±1.0VDC to ±18VDC
•Very low supply current drain (0.8mA) independent of supply
voltage (1.0mW/comparator at 5.0VDC)
•Low input biasing current 25nA
•Low input offset current ±5nA and offset voltage
•Input common–mode voltage range includes ground
•Differential input voltage range equal to the power supply voltage
•Low output 250mV at 4mA saturation voltage
•Output voltage compatible with TTL, DTL, ECL, MOS and CMOS
logic systems
APPLICATIONS
•A/D converters
•Wide range VCO
•MOS clock generator
•High voltage logic gate
•Multivibrators
PIN CONFIGURATION
1
2
3
4
5
6
7 8
14
13
12
11
10
9
OUTPUT 2
OUTPUT 1
V+
INPUT 1 –
INPUT 1 +
OUTPUT 3
TOP VIEW
D, N Packages
INPUT 1 –
INPUT 1 +
OUTPUT 4
GND
INPUT 4 –
INPUT 3 +
INPUT 3 –
INPUT 4 +
1
2 3
4
EQUIVALENT CIRCUIT
V
+
100µA3.5µA 3.5µA 100µA
Q1
Q2 Q3
Q4
Q8
Q7
Q6Q5
– INPUT
OUTPUT
+
INPUT
(One Comparator Only)
ORDERING INFORMATION
DESCRIPTION TEMPERATURE RANGE ORDER CODE
DWG #
14–Pin Plastic Small Outline (SO) Package –40°C to +125°C AU2901D 0175D
14–Pin Plastic Dual In-Line Package (DIP) –40°C to +125°C AU2901N 0405B
Philips Semiconductors Linear Products Product specification
AU2901Quad voltage comparator
August 31, 1994
290
ABSOLUTE MAXIMUM RATINGS
SYMBOL PARAMETER RATING UNIT
V
CC
VCC supply voltage 36 or ±18 V
DC
V
DIFF
Differential input voltage 36 V
DC
V
IN
Input voltage –0.3 to +36 V
DC
P
DMAX
Maximum power dissipation,
TA=25°C (still–air)
1
N package 1420 mW
D package 1040 mW
Output short–circuit to ground
2
Continuous
I
IN
Input current (VIN<–0.3VDC)
3
50 mA
T
A
Operating temperature range
AU2901 –40 to +125 °C
T
STG
Storage temperature range –65 to +150 °C
T
SOLD
Lead soldering temperature (10sec max) 300 °C
NOTES:
1. Derate above 25°C, at the following rates:
N Package at 11.4mW/°C
D Package at 8.3mW/°C
2. Short circuits from the output to V+ can cause excessive heating and eventual destruction. The maximum output current is approximately
20mA independent of the magnitude of V+.
3. This input current will only exist when the voltage at any of the input leads is driven negative. It is due to the collector–base junction of the
input PNP transistors becoming forward biased and thereby acting as input diode clamps. In addition to this diode action, there is also lateral
NPN parasitic transistor action on the IC chip. This transistor action can cause the output voltages of the comparators to go to the V+ voltage
level (or to ground for a large overdrive) for the time duration that an input is driven negative. This is not destructive and normal output states
will reestablish when the input voltage, which was negative, again returns to a value greater than –0.3V
DC
.
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