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LM293 Datasheet

Low power dual voltage comparator


LM293 Datasheet Preview


INTEGRATED CIRCUITS
LM193A/293/A/393/A/2903
Low power dual voltage comparator
Product data
Supersedes data of 2002 Jan 22
2002 Jul 12
Philips
Semiconductors
Page 1

Philips Semiconductors
Low power dual voltage comparator
Product data
LM193A/293/A/393/A/2903
DESCRIPTION
The LM193 series consists of two independent precision voltage
comparators with an offset voltage specification as low as 2.0 mV
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.
The LM193 series was designed to directly interface with TTL and
CMOS. When operated from both plus and minus power supplies,
the LM193 series will directly interface with MOS logic where their
low power drain is a distinct advantage over standard comparators.
FEATURES
Wide single supply voltage range 2.0 VDC to 32 VDC,
or dual supplies ±1.0 VDC, to ±16 VDC
Very low supply current drain (0.8 mA) independent of supply
voltage (2.0 mW/comparator at 5.0 VDC)
Low input biasing current 25 nA
Low input offset current ±5 nA and offset voltage ±2 mV
Input common-mode voltage range includes ground
Differential input voltage range equal to the power supply voltage
Low output 250 mV at 4 mA 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
D, DP, and N Packages
OUTPUT A 1
INVERTING INPUT A 2
NON-INVERTING INPUT A 3
GND 4
AB
8 V+
7 OUTPUT B
6 INVERTING INPUT B
5 NON-INVERTING INPUT B
TOP VIEW
Figure 1. Pin configuration.
SL00079
EQUIVALENT CIRCUIT
V+
3.5 µA 100 µA 3.5 µA 100 µA
+ INPUT
Q2
Q1
– INPUT
Q5
Q3
Q4
OUTPUT
Q8
Q7
Q6
(One Comparator Only)
Figure 2. Equivalent circuit.
SL00080
ORDERING INFORMATION
DESCRIPTION
8-Pin Plastic Dual In-Line Package (DIP)
8-Pin Plastic Small Outline (SO) Package
8-Pin Plastic Dual In-Line Package (DIP)
8-Pin Plastic Small Outline (SO) Package
8-Pin Plastic Dual In-Line Package (DIP)
8-Pin Plastic Small Outline (SO) Package
8-Pin Plastic Thin Shrink Small Outline Package (TSSOP)
8-Pin Plastic Dual In-Line Package (DIP)
8-Pin Plastic Small Outline (SO) Package
8-Pin Plastic Dual In-Line Package (DIP)
8-Pin Plastic Small Outline (SO) Package
8-Pin Plastic Dual In-Line Package (DIP)
8-Pin Plastic Thin Shrink Small Outline Package (TSSOP)
TEMPERATURE RANGE
–55 °C to +125 °C
–25 °C to +85 °C
–25 °C to +85 °C
–25 °C to +85 °C
–25 °C to +85 °C
0 °C to +70 °C
0 °C to +70 °C
0 °C to +70 °C
0 °C to +70 °C
0 °C to +70 °C
–40 °C to +125 °C
–40 °C to +125 °C
–40 °C to +125 °C
ORDER CODE
LM193AN
LM293D
LM293N
LM293AD
LM293AN
LM393D
LM393DP
LM393N
LM393AD
LM393AN
LM2903D
LM2903N
LM2903DP
DWG #
SOT97-1
SOT96-1
SOT97-1
SOT96-1
SOT97-1
SOT96-1
SOT505-1
SOT97-1
SOT96-1
SOT97-1
SOT96-1
SOT97-1
SOT505-1
2002 Jul 12
2 853-0932 28616
Page 2

Philips Semiconductors
Low power dual voltage comparator
Product data
LM193A/293/A/393/A/2903
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
RATING
UNIT
VCC Supply voltage
32 or ±16
VDC
Differential input voltage
32 VDC
VIN Input voltage
PD Maximum power dissipation, Tamb = 25 °C (still-air)1
N package
D package
DP package
–0.3 to +32
1160
780
714
VDC
mW
mW
mW
Output short-circuit to ground2
Continuous
IIN Input current (VIN < –0.3 VDC)3
50 mA
Tamb
Operating temperature range
LM193A
LM293/293A
LM393/393A
LM2903
–55 to +125
–25 to +85
0 to +70
–40 to +125
°C
°C
°C
°C
Tstg Storage temperature range
–65 to +150
°C
Tsld Lead soldering temperature (10 sec max)
230 °C
NOTES:
1. Derate above 25 °C, at the following rates:
N package at 9.3 mW/°C
D package at 6.2 mW/°C
DP package at 5.72 mW/°C
2. Short circuits from the output to V+ can cause excessive heating and eventual destruction. The maximum output current is approximately
20 mA 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 re-establish when the input voltage, which was negative, again returns to a value greater than –0.3 VDC.
2002 Jul 12
3
Page 3
Part Number LM293
Manufactur NXP
Description Low power dual voltage comparator
Total Page 12 Pages
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