Electrical characteristics LM2903
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4 Electrical characteristics
Table 3. VCC+ = 5 V, VCC- = GND, Tamb = 25°C (unless otherwise specified)
Symbol Parameter Min. Typ. Max. Unit
Vio Input offset voltage(1)
Tmin Tamb Tmax
17
15 mV
Iio Input offset curr ent
Tmin Tamb Tmax
550
150 nA
Iib Input bias current(2)
Tmin Tamb Tmax
25 250
400
Avd Large signal voltage gain
VCC = 15 V, RL= 15 k, Vo= 1 to 11 V 25 200 V/mV
ICC
Supply current (all comparators)
VCC = 5 V, no load
VCC = 30 V, no load 0.4
11
2.5 mA
Vid Differential input voltage(3) VCC+V
VOL Low level output voltage (Vid = -1 V, Isink = 4 mA)
Tmin Tamb Tmax
250 400
700 mV
IOH High level output current (VCC =Vo = 30 V, Vid = 1 V)
Tmin Tamb Tmax
0.1 1nA
µA
Isink Output sink current (Vid = -1 V, Vo = 1.5 V) 6 16 mA
tres Small signal response time(4) (RL = 5.1 k to VCC+)1.3µs
trel
Large signal response time(5)
TTL input (Vref = +1.4 V, RL= 5.1 k to VCC+)
Output signal at 50% of final value
Output signal at 95% of final value 500
1ns
µs
1. At output switch point, VO 1.4 V, RS = 0 with VCC+ from 5 V to 30 V, and over the full input common-mode range
(0 V to VCC+ –1.5 V).
2. The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant,
independent of the state of the output, so no loading charge exists on the reference of input lines.
3. Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the
common-mode range, the comparator provides a proper output state. The low input voltage state must not be less than
–0.3 V (or 0.3 V below the negative power supply, if used).
4. The response time specified is for a 100 mV input step with 5 mV overdrive.
5. Maximum values are guaranteed by design and evaluation.