Overview
The LMV7271MF/NOPB is a low-power comparator from Texas Instruments, designed for applications requiring low voltage, low power consumption, and minimal space. This device is part of the LMV727x family, which includes single and dual comparators characterized at supply voltages of 1.8 V, 2.7 V, and 5 V. The LMV7271 is available in SC70 and SOT-23 packages, making it ideal for space-critical designs. It features a push-pull output stage that minimizes power consumption when driving a load.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (V+ - V−) | 1.8 | 5 | V | ||
| Input Offset Voltage (VOS) | V+ = 1.8 V, V− = 0 V, VCM = 0.9 V | 0.3 | 4 | 6 | mV |
| Input Bias Current (IB) | V+ = 1.8 V, V− = 0 V, VCM = 0.9 V | 10 | nA | ||
| Input Offset Current (IOS) | V+ = 1.8 V, V− = 0 V, VCM = 0.9 V | 200 | pA | ||
| Propagation Delay (tPHL/tPLH) | Input Overdrive = 20 mV, Load = 50 pF//5 kΩ | 880 | 1300 | ns | |
| Input Common Mode Voltage Range (VCM) | -0.1 | 0.1 V above V+ | V | ||
| Supply Current (IS) | V+ = 1.8 V, V− = 0 V | 9 | 12 | 18 | µA |
| Operating Temperature Range | -40 | 85 | °C | ||
| Package | SC70, SOT-23 |
Key Features
- Ultra-low supply current: 9 µA per channel
- Low input bias current: 10 nA
- Low input offset current: 200 pA
- Low ensured input offset voltage (VOS): 4 mV
- Propagation delay: 880 ns (20-mV overdrive)
- Input common mode voltage range: 0.1 V beyond rails
- Push-pull output stage for minimum power consumption
- Bipolar inputs for improved noise performance and CMOS outputs for rail-to-rail output swing
- Available in SC70 and SOT-23 packages for space-critical designs
Applications
- Wearable devices
- Mobile phones and tablets
- Battery-powered electronics
- General-purpose low-voltage applications
- Power supply monitoring circuits
Q & A
- What is the typical supply current of the LMV7271?
The typical supply current of the LMV7271 is 9 µA per channel at 1.8 V supply voltage.
- What are the available packages for the LMV7271?
The LMV7271 is available in SC70 and SOT-23 packages.
- What is the propagation delay of the LMV7271?
The propagation delay of the LMV7271 is 880 ns with a 20-mV overdrive.
- What is the input common mode voltage range of the LMV7271?
The input common mode voltage range of the LMV7271 is 0.1 V beyond the supply rails.
- What type of output stage does the LMV7271 feature?
The LMV7271 features a push-pull output stage.
- What are some typical applications of the LMV7271?
The LMV7271 is typically used in wearable devices, mobile phones and tablets, battery-powered electronics, and general-purpose low-voltage applications.
- What is the operating temperature range of the LMV7271?
The operating temperature range of the LMV7271 is -40°C to 85°C.
- What is the input offset voltage (VOS) of the LMV7271?
The input offset voltage (VOS) of the LMV7271 is typically 4 mV.
- How does the LMV7271 handle noise performance?
The LMV7271 has bipolar inputs for improved noise performance and CMOS outputs for rail-to-rail output swing.
- Can the LMV7271 be used in level-shifting applications?
While the LMV7271 itself does not feature an open-drain output, the LMV7275 variant does, which is useful for level-shifting applications.
- What is the maximum junction temperature of the LMV7271?
The maximum junction temperature of the LMV7271 is 150°C.
