Overview
The LM2901VQDRG4 is a quad differential comparator integrated circuit produced by Texas Instruments. It is part of the next-generation B-version comparators, which offer improved specifications over their predecessors. This device consists of four independent precision voltage comparators designed to operate from a single power supply over a wide range of voltages. The LM2901VQDRG4 is suitable for various applications requiring high accuracy and reliability in voltage comparison.
Key Specifications
| Parameter | Typical Value | Unit | Conditions |
|---|---|---|---|
| Input Offset Voltage (VIO) | 2 mV (A-suffix devices), 7 mV (Non-A devices) | mV | VIC = VICR min, VO = 1.4 V, VCC = 5 V to 30 V |
| Input Bias Current (IIB) | 3.5 nA | nA | VO = 1.4 V |
| Supply Current (ICC) | 200 µA per comparator | µA | No load, VCC = 5 V to 30 V |
| Common-Mode Input Voltage Range (VICR) | 0 V to VCC - 1.5 V | V | |
| Differential Input Voltage Range | ±38 V | V | |
| Response Time | 1.3 µs | µs | 100-mV input step with 5-mV overdrive |
| Output Saturation Voltage | Low output saturation voltage | - | |
| Output Compatibility | TTL, MOS, CMOS | - | |
| Operating Temperature Range | -40°C to 125°C | °C | |
| Package Type | SOIC (D) | - | 14 pins |
| ESD Rating (HBM) | 2 kV | V |
Key Features
- Lower offset voltage and input bias current compared to previous versions.
- Higher supply voltage capability up to 38 V.
- Lower supply current of 200 µA per comparator.
- Faster response time of 1.3 µs.
- Improved 2 kV ESD performance and input ruggedness through dedicated ESD clamps.
- Common-mode input voltage range includes ground.
- Differential input voltage range equal to maximum-rated supply voltage.
- Low output saturation voltage.
- Output compatible with TTL, MOS, and CMOS.
- Drop-in replacement for LM239, LM339, and LM2901 A and V versions.
Applications
The LM2901VQDRG4 is versatile and can be used in a variety of applications, including:
- Voltage monitoring and detection circuits.
- Threshold detectors and window comparators.
- Automotive systems requiring high reliability and temperature range.
- Industrial control systems.
- Medical devices requiring precise voltage comparison.
- Consumer electronics where low power consumption and high accuracy are necessary.
Q & A
- What is the input offset voltage of the LM2901VQDRG4?
The input offset voltage is typically 2 mV for A-suffix devices and 7 mV for non-A devices.
- What is the supply current per comparator?
The supply current is 200 µA per comparator.
- What is the common-mode input voltage range?
The common-mode input voltage range is from 0 V to VCC - 1.5 V.
- What is the differential input voltage range?
The differential input voltage range is ±38 V.
- How fast is the response time of the LM2901VQDRG4?
The response time is 1.3 µs for a 100-mV input step with 5-mV overdrive.
- Is the LM2901VQDRG4 compatible with TTL, MOS, and CMOS outputs?
Yes, the output is compatible with TTL, MOS, and CMOS.
- What is the operating temperature range of the LM2901VQDRG4?
The operating temperature range is -40°C to 125°C.
- What is the ESD rating of the LM2901VQDRG4?
The ESD rating is 2 kV according to the Human Body Model (HBM).
- Can the LM2901VQDRG4 replace older versions of comparators?
Yes, it can drop-in replace LM239, LM339, and LM2901 A and V versions.
- What package type is the LM2901VQDRG4 available in?
The LM2901VQDRG4 is available in a 14-pin SOIC (D) package.
