Overview
The LM3302D, produced by Texas Instruments, is a quad differential voltage comparator integrated circuit. This device is designed to operate from a single power supply or dual supplies, offering a wide range of supply voltage from 2 V to 28 V. It features four independent voltage comparators, making it versatile for various applications requiring multiple comparison functions. The LM3302D is suitable for use in systems that require low power consumption and high accuracy in voltage comparisons.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 2 V to 28 V | V |
| Supply Current (Typical) | 0.8 mA | mA |
| Input Bias Current (Typical) | 25 nA | nA |
| Input Offset Current (Typical) | 3 nA | nA |
| Input Offset Voltage (Typical) | 3 mV | mV |
| Common-Mode Input Voltage Range | Includes Ground | |
| Differential Input Voltage Range | ±28 V | V |
| Output Saturation Voltage | Low | |
| Output Compatibility | TTL, MOS, CMOS | |
| Operating Temperature Range | -40°C to 85°C | °C |
| Package Type | 14-Pin PDIP or 14-Pin SOIC |
Key Features
- Four independent voltage comparators.
- Single or dual supply operation with a wide range of supply voltage (2 V to 28 V).
- Low supply current drain independent of supply voltage.
- Low input bias and offset currents.
- Low input offset voltage.
- Common-mode input voltage range includes ground.
- Differential input voltage range equal to the maximum-rated supply voltage.
- Low output saturation voltage.
- Output compatible with TTL, MOS, and CMOS.
- Open-collector outputs for wired-AND relationships.
Applications
The LM3302D is suitable for a variety of applications, including:
- Power supply monitoring and control.
- Threshold detection in analog circuits.
- Window comparators for signal validation.
- Level detection in industrial control systems.
- Automotive and aerospace systems requiring multiple voltage comparisons.
Q & A
- What is the supply voltage range of the LM3302D?
The LM3302D can operate from a single supply or dual supplies with a voltage range of 2 V to 28 V. - What is the typical supply current of the LM3302D?
The typical supply current is 0.8 mA. - What is the input bias current of the LM3302D?
The typical input bias current is 25 nA. - Is the LM3302D compatible with TTL, MOS, and CMOS outputs?
Yes, the LM3302D outputs are compatible with TTL, MOS, and CMOS. - What is the operating temperature range of the LM3302D?
The operating temperature range is -40°C to 85°C. - Can the LM3302D be used in dual supply configurations?
Yes, as long as the difference between the two supplies is 2 V to 28 V and VCC is at least 1.5 V more positive than the input common-mode voltage. - What is the common-mode input voltage range of the LM3302D?
The common-mode input voltage range includes ground. - How many independent voltage comparators does the LM3302D have?
The LM3302D has four independent voltage comparators. - What is the differential input voltage range of the LM3302D?
The differential input voltage range is equal to the maximum-rated supply voltage, which is ±28 V. - Can the outputs of the LM3302D be connected to achieve wired-AND relationships?
Yes, the open-collector outputs can be connected to achieve wired-AND relationships.
