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Product Detailed Parameters
- Description：IC COMP DUAL OFFSET LV 8SOIC
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：-
- Number of Elements：-
- Output Type：-
- Voltage - Supply, Single/Dual (±)：-
- Voltage - Input Offset (Max)：-
- Current - Input Bias (Max)：-
- Current - Output (Typ)：-
- Current - Quiescent (Max)：-
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-
- Package / Case：-
- Mounting Type：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The LM393DR2G is a dual independent precision voltage comparator manufactured by onsemi, housed in an SOIC-8 surface-mount package. It supports wide single-supply operation from 2.0 Vdc to 36 Vdc and split-supply ranges of ±1.0 Vdc to ±18 Vdc. The device features very low current drain of 0.4 mA, independent of supply voltage, and includes input ESD clamps for increased ruggedness. Electrical characteristics include a maximum input offset voltage of 5.0 mV at 25°C and a typical response time of 1.3 μs.
Feature Summary
- Dual independent precision voltage comparators capable of single or split supply operation
- Input common mode range extends to ground level with single supply operation
- Output voltage compatible with DTL, ECL, TTL, MOS, and CMOS logic levels
- ESD clamps on the inputs increase the ruggedness of the device without affecting performance
Applications
- Consumer electronics
- Automotive electronics
- Industrial electronics
Procurement Notes
Verify the specific suffix DR2G corresponds to the SOIC-8 tape and reel shipping configuration as defined in the manufacturer's ordering information. Confirm that the operating temperature range aligns with commercial requirements (0 °C to +70 °C) rather than extended industrial or automotive grades which utilize different prefixes or suffixes. Ensure compliance with RoHS and Pb-Free standards required for the target assembly process.
Selection Notes
Select this component when low power consumption is critical, as the current drain remains constant regardless of supply voltage. The open-collector output requires an external pull-up resistor to interface with various logic families. Consider the input bias current direction flowing out of the inputs when designing source impedance networks to minimize offset errors.
Part Context
This part belongs to the LM393 series of low offset voltage dual comparators produced by onsemi. The series includes variants such as LM293, LM393E, LM2903, and NCV2903, which differ primarily in operating temperature ranges and automotive qualification status. The LM393 specifically targets commercial applications within the 0 °C to +70 °C range.
Replacement Considerations
LM393DR2GH
FAQ
What is the input bias current direction for the LM393?
Due to the PNP transistor inputs, the bias current flows out of the inputs. This current is essentially constant and independent of the output state.
Can differential input voltages exceed the supply voltage?
Yes, differential input voltages may be larger than the supply voltage without damaging the comparator’s inputs, provided they do not go more negative than -0.3 V relative to ground or the minus supply.
