LM311AH
Voltage Comparator
The LM111, LM211 and LM311 are voltage comparators that
have input currents nearly a thousand times lower than
devices like the LM106 or LM710. They are also designed to
operate over a wider range of supply voltages: from standard
±15V op amp supplies dowto the single 5V supply used for
IC logic. Their output is compatible with RTL, DTL and TTL
as well as MOS circuits. Further, they cadrive lamps or
relays, switching voltages up to 50V at currents as high as
50 mA.
Both the inputs and the outputs of the LM111, LM211 or the
LM311 cabe isolated from system ground, and the output
cadrive loads referred to ground, the positive supply or the
negative supply. Offset balancing and strobe capability are
provided and outputs cabe wire OR’ed. Although slower
thathe LM106 and LM710 (200 ns response time vs 40 ns)
the devices are also much less prone to spurious oscillations. The LM111 has the same piconfiguratioas the
LM106 and LM710.
The LM211 is identical to the LM111, except that its performance is specified over a −25?C to +85?C temperature range
instead of −55?C to +125?C. The LM311 has a temperature
range of 0?C to +70?C.
2.0 Features
Operates from single 5V supply
Input current: 150 nA max. over temperature
Offset current: 20 nA max. over temperature
Differential input voltage range: ±30V
Power consumption: 135 mW at ±15V
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