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LM293

Dual differential comparator

ON Semiconductor 

LM393, LM293, LM2903, LM2903V, NCV2903

ELECTRICAL CHARACTERISTICS (VCC = 5.0 Vdc, Tlow ≤ TA ≤ Thigh, unless otherwise noted.)

LM293, LM393

LM2903, LM2903V,

NCV2903

Characteristic

Symbol Min Typ

Max

Min Typ

Max

Unit

Input Offset Voltage (Note 5)

TA = 25°C

Tlow ≤ TA ≤ Thigh

Input Offset Current

TA = 25°C

Tlow ≤ TA ≤ Thigh

Input Bias Current (Note 6)

TA = 25°C

Tlow ≤ TA ≤ Thigh

Input Common Mode Voltage Range (Note 6)

TA = 25°C

Tlow ≤ TA ≤ Thigh

Voltage Gain

RL ≥ 15 kW, VCC = 15 Vdc, TA = 25°C

Large Signal Response Time

Vin = TTL Logic Swing, Vref = 1.4 Vdc

VRL = 5.0 Vdc, RL = 5.1 kW, TA = 25°C

Response Time (Note 8)

VRL = 5.0 Vdc, RL = 5.1 kW, TA = 25°C

Input Differential Voltage (Note 9)

All Vin ≥ GND or V− Supply (if used)

Output Sink Current

Vin ≥ 1.0 Vdc, Vin+ = 0 Vdc, VO ≤ 1.5 Vdc TA = 25°C

Output Saturation Voltage

Vin ≥ 1.0 Vdc, Vin+ = 0, ISink ≤ 4.0 mA, TA = 25°C

Tlow ≤ TA ≤ Thigh

Output Leakage Current

Vin− = 0 V, Vin+ ≥ 1.0 Vdc, VO = 5.0 Vdc, TA = 25°C

Vin− = 0 V, Vin+ ≥ 1.0 Vdc, VO = 30 Vdc,

Tlow ≤ TA ≤ Thigh

VIO

IIO

IIB

VICR

AVOL

−

tTLH

VID

ISink

VOL

IOL

mV

− ±1.0

±5.0

− ±2.0

±7.0

−

−

9.0

−

9.0

15

nA

− ±5.0

±50

− ±5.0

±50

−

−

±150

− ±50

±200

nA

−

25

250

−

25

250

−

−

400

− 200

500

V

0

−

VCC −1.5 0

−

VCC −1.5

0

−

VCC −2.0 0

−

VCC −2.0

50 200

−

25 200

−

V/mV

− 300

−

− 300

−

ns

−

1.3

−

−

1.5

−

ms

−

−

VCC

−

−

VCC

V

6.0 16

−

6.0 16

−

mA

mV

− 150

400

−

−

400

−

−

700

− 200

700

nA

−

0.1

−

−

0.1

−

−

−

1000

−

−

1000

Supply Current

RL = ∞ Both Comparators, TA = 25°C

RL = ∞ Both Comparators, VCC = 30 V

ICC

mA

−

0.4

1.0

−

0.4

1.0

−

−

2.5

−

−

2.5

LM293 Tlow = −25°C, Thigh = +85°C

LM393 Tlow = 0°C, Thigh = +70°C

LM2903 Tlow = −40°C, Thigh = +105°C

LM2903V & NCV2903 Tlow = −40°C, Thigh = +125°C

NCV2903 is qualified for automotive use.

4. The maximum output current may be as high as 20 mA, independent of the magnitude of VCC, output short circuits to VCC can cause

excessive heating and eventual destruction.

5. At output switch point, VO]1.4 Vdc, RS = 0 W with VCC from 5.0 Vdc to 30 Vdc, and over the full input common mode range (0 V to

VCC = −1.5 V).

6. Due to the PNP transistor inputs, bias current will flow out of the inputs. This current is essentially constant, independent of the output state,

therefore, no loading changes will exist on the input lines.

7. Input common mode of either input should not be permitted to go more than 0.3 V negative of ground or minus supply. The upper limit of

common mode range is VCC −1.5 V.

8. Response time is specified with a 100 mV step and 5.0 mV of overdrive. With larger magnitudes of overdrive faster response times are

obtainable.

9. The comparator will exhibit proper output state if one of the inputs becomes greater than VCC, the other input must remain within the common

mode range. The low input state must not be less than −0.3 V of ground or minus supply.

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