Overview
The LM311MX/NOPB is a precision, high-voltage comparator produced by Texas Instruments. This device is part of the LM311 family, known for its low input currents and wide range of supply voltages. The LM311MX/NOPB is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package, making it suitable for a variety of applications where space is a consideration.
This comparator is designed to operate from a single 5V supply or from dual supplies up to ±15V, making it versatile for use in different circuit configurations. It features offset balancing and strobe capability, and its output can drive loads referred to ground, the positive supply, or the negative supply. The LM311MX/NOPB is also compatible with various logic families, including RTL, DTL, TTL, and MOS circuits.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Total Supply Voltage | 36 | V | ||
| Output to Negative Supply Voltage | 50 | V | ||
| Differential Input Voltage | ±30 | V | ||
| Input Offset Voltage | 2.0 | 7.5 | mV | |
| Input Offset Current | 6.0 | 50 | nA | |
| Input Bias Current | 100 | 250 | nA | |
| Response Time | 200 | ns | ||
| Saturation Voltage | 0.75 | 1.5 | V | |
| Operating Temperature Range | 0 | 70 | °C | |
| Storage Temperature Range | -65 | 150 | °C |
Key Features
- Low Input Currents: The LM311MX/NOPB has input currents nearly a thousand times lower than comparators like the LM106 or LM710, making it highly efficient.
- Wide Supply Voltage Range: Operates from a single 5V supply or from dual supplies up to ±15V.
- Offset Balancing and Strobe Capability: Allows for precise control over the comparator's operation and output.
- High Output Drive Capability: Can drive loads up to 50V at currents as high as 50 mA.
- Compatibility with Various Logic Families: Compatible with RTL, DTL, TTL, and MOS circuits.
- Isolation from System Ground: Both inputs and outputs can be isolated from system ground, providing flexibility in circuit design.
Applications
- Industrial Control Systems: Used in control circuits for industrial automation and monitoring.
- Medical Devices: Suitable for medical equipment due to its precision and reliability.
- Aerospace and Defense: Can be used in various aerospace and defense applications requiring high precision and reliability.
- Automotive Systems: Used in automotive control systems for sensor monitoring and feedback loops.
- Consumer Electronics: Found in consumer electronics for voltage monitoring and control functions.
Q & A
- What is the operating temperature range of the LM311MX/NOPB?
The operating temperature range of the LM311MX/NOPB is from 0°C to 70°C.
- What is the maximum differential input voltage for the LM311MX/NOPB?
The maximum differential input voltage for the LM311MX/NOPB is ±30V.
- Can the LM311MX/NOPB operate from a single supply voltage?
Yes, the LM311MX/NOPB can operate from a single 5V supply or from dual supplies up to ±15V.
- What is the response time of the LM311MX/NOPB?
The response time of the LM311MX/NOPB is typically 200 ns for a 100 mV input step with 5 mV overdrive.
- Is the LM311MX/NOPB compatible with TTL logic?
Yes, the LM311MX/NOPB is compatible with TTL, as well as RTL, DTL, and MOS circuits.
- What is the maximum output current of the LM311MX/NOPB?
The LM311MX/NOPB can drive loads up to 50 mA.
- Can the inputs and outputs of the LM311MX/NOPB be isolated from system ground?
Yes, both the inputs and outputs of the LM311MX/NOPB can be isolated from system ground.
- What is the storage temperature range for the LM311MX/NOPB?
The storage temperature range for the LM311MX/NOPB is from -65°C to 150°C.
- Does the LM311MX/NOPB have strobe capability?
Yes, the LM311MX/NOPB has strobe capability, allowing the output to be disabled by drawing current from the strobe pin.
- What package types are available for the LM311MX/NOPB?
The LM311MX/NOPB is available in an 8-pin SOIC (Small Outline Integrated Circuit) package.
