Overview
The CMP401GSZ is a low-voltage comparator produced by Analog Devices Inc. This quad comparator is designed for high performance and reliability, featuring separate input and output supplies. It operates over a wide temperature range of –40°C to +125°C, making it suitable for various industrial, automotive, and consumer applications. The CMP401GSZ is known for its fast propagation delay, low power consumption, and high slew rate, which are critical for precision and speed in electronic circuits.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Offset Voltage | VOS | VCM = 0 V | - | 3 | 4.5 | mV |
| Input Common-Mode Voltage Range | VCM | - | 0 | - | 2.0 | V |
| Input Differential Voltage Range | VDIFF | - | - | - | ±2.0 | V |
| Common-Mode Rejection Ratio | CMRR | 0.1 V ≤ VCM ≤ 1.9 V | - | - | 60 | dB |
| Output High Voltage | VOH | IOH = –3.2 mA | - | - | 2.6 | V |
| Output Low Voltage | VOL | IOL = 3.2 mA | - | - | 0.25 | V |
| Propagation Delay | tP | 100 mV Step with 20 mV OD, TA = 25°C | - | 23 | 33 | ns |
| Analog Supply Current | IANA | TA = 25°C | - | 6.5 | 8.0 | mA |
| Digital Supply Current | IDIG | VO = 0 V, RL = ∞, TA = 25°C | - | 2.0 | 2.25 | mA |
| Supply Voltage Range | V+ | - | 2.7 | - | 5.5 | V |
| Minimum Operating Temperature | TA | - | -40 | - | - | °C |
| Maximum Operating Temperature | TA | - | - | - | 125 | °C |
| Power Supply Rejection Ratio | PSRR | V+ANA and V+DIG | - | - | 60 | dB |
Key Features
- High Slew Rate: 100 V/μs, ensuring fast response times.
- Low Noise and Accurate Results: Suitable for precision applications.
- Rail-to-Rail Input and Output: Enhances flexibility in circuit design.
- Supply Voltage Range: From 2.7 V to 5.5 V, accommodating various power supply configurations.
- High Impedance Input Stage: Low input current, reducing power consumption.
- Fast Response Time: Propagation delay as low as 23 ns.
- Low Power Consumption: Ideal for battery-powered and energy-efficient designs.
- Wide Operating Temperature Range: –40°C to +125°C, suitable for harsh environments.
- Separate Input and Output Supplies: Allows for greater flexibility in system design.
Applications
- Capacitive Touch Controllers: For precise touch sensing in various devices.
- Light Sensors: For detecting light levels in different environments.
- Temperature Controllers: For accurate temperature monitoring and control.
- Digital Potentiometers: For adjustable resistance in electronic circuits.
- LED Drivers: For controlling LED brightness and operation.
- Motion Sensors: For detecting movement in security and automation systems.
- Current Sense Amplifiers: For monitoring current levels in power management systems.
- Infrared Detectors: For detecting infrared signals in various applications.
- RF Modulators: For modulating radio frequency signals.
- Temperature Sensors: For precise temperature measurement.
- Motor Controllers: For controlling motor speed and direction.
- Voltage Regulators: For stabilizing voltage levels in electronic systems.
- High-Voltage Circuits: For applications requiring high voltage handling.
- Data Converters: For converting analog to digital signals.
- Power Management ICs: For efficient power management in electronic devices.
- Low-Power Sensors: For energy-efficient sensing applications.
- Audio Amplifiers: For amplifying audio signals.
- RF Transmitters: For transmitting radio frequency signals.
Q & A
- What is the propagation delay of the CMP401GSZ?
The propagation delay of the CMP401GSZ is as low as 23 ns for a 100 mV step with a 20 mV overdrive.
- What is the supply voltage range for the CMP401GSZ?
The supply voltage range for the CMP401GSZ is from 2.7 V to 5.5 V.
- What is the operating temperature range of the CMP401GSZ?
The CMP401GSZ operates over a temperature range of –40°C to +125°C.
- What is the input offset voltage of the CMP401GSZ?
The input offset voltage of the CMP401GSZ is typically 3 mV.
- What is the common-mode rejection ratio (CMRR) of the CMP401GSZ?
The CMRR of the CMP401GSZ is 60 dB.
- What is the power supply rejection ratio (PSRR) of the CMP401GSZ?
The PSRR of the CMP401GSZ is 60 dB.
- What package types are available for the CMP401GSZ?
The CMP401GSZ is available in 16-lead SOIC and 16-lead TSSOP packages.
- What are some typical applications of the CMP401GSZ?
The CMP401GSZ is used in capacitive touch controllers, light sensors, temperature controllers, digital potentiometers, LED drivers, and many other precision applications.
- What is the slew rate of the CMP401GSZ?
The CMP401GSZ has a high slew rate of 100 V/μs.
- Is the CMP401GSZ suitable for high-temperature environments?
Yes, the CMP401GSZ can operate in temperatures up to +125°C, making it suitable for harsh environments.
