Overview
The LM306 is a high-speed voltage comparator produced by Texas Instruments. It features differential inputs, a low-impedance high-sink-current output, and two strobe inputs. This device is designed to detect low-level analog or digital signals and can drive digital logic, lamps, or relays directly. The LM306 offers short-circuit and surge protection, ensuring robust operation under various conditions. It is characterized for operation from 0°C to 70°C and is available in both SOIC (LM306D) and PDIP (LM306P) packages.
Key Specifications
| Parameter | Typical Value | Minimum Value | Maximum Value | Unit |
|---|---|---|---|---|
| Supply Voltage, VCC+ | - | - | 15 | V |
| Supply Voltage, VCC− | - | - | −15 | V |
| Differential Input Voltage, VID | - | - | ±5 | V |
| Input Offset Voltage, VIO | 1.6 | - | 5 | mV |
| Input Offset Current, IIO | 1 | - | 7.5 | µA |
| Response Time, Low-to-High-Level Output | 28 | - | 40 | ns |
| Operating Free-Air Temperature Range, TA | - | 0 | 70 | °C |
| Output Current, IOS | - | - | 100 | mA |
Key Features
- High-speed voltage comparator with differential inputs
- Low-impedance high-sink-current (100 mA) output
- Two strobe inputs for control over output state
- Short-circuit and surge protection
- Fanout to 10 series 54/74 TTL loads
- Operates with any negative supply voltage between −3 V and −12 V
- Available in SOIC and PDIP packages
Applications
- Detection of low-level analog or digital signals
- Driving digital logic, lamps, or relays
- High-speed data acquisition systems
- Automotive and industrial control systems
- Medical devices requiring precise signal detection
Q & A
- What is the primary function of the LM306?
The LM306 is a high-speed voltage comparator designed to detect low-level analog or digital signals and drive digital logic, lamps, or relays.
- What are the key features of the LM306?
The LM306 features differential inputs, a low-impedance high-sink-current output, two strobe inputs, short-circuit and surge protection, and the ability to operate with various negative supply voltages.
- What is the operating temperature range of the LM306?
The LM306 is characterized for operation from 0°C to 70°C.
- What are the typical applications of the LM306?
The LM306 is used in high-speed data acquisition systems, automotive and industrial control systems, and medical devices requiring precise signal detection.
- What is the maximum output current of the LM306?
The LM306 has a maximum output current of 100 mA.
- How does the strobe function work on the LM306?
A low-level input at either strobe causes the output to remain high regardless of the differential input voltage. When both strobe inputs are either open or at a high logic level, the output voltage is controlled by the differential input voltage.
- What are the package options for the LM306?
The LM306 is available in both SOIC (LM306D) and PDIP (LM306P) packages.
- What is the maximum differential input voltage for the LM306?
The maximum differential input voltage for the LM306 is ±5 V.
- Does the LM306 have short-circuit protection?
Yes, the LM306 has short-circuit and surge protection.
- What is the response time of the LM306?
The response time of the LM306 is typically 28 ns for a low-to-high-level output transition.
