Overview
The LMV931MG/NOPB, part of the LMV93x-N family from Texas Instruments, is a low-voltage, low-power operational amplifier. This device is available in single (LMV931-N), dual (LMV932-N), and quad (LMV934-N) configurations. The LMV931MG/NOPB operates from 1.8-V to 5.5-V supply voltages and features rail-to-rail input and output. It is optimized for use in portable, battery-powered systems, including two-cell and single-cell Li-Ion battery applications. The device exhibits an excellent speed-power ratio, with a gain bandwidth product of 1.4 MHz at 1.8-V supply voltage and very low supply current.
Key Specifications
| Parameter | Typical Value | Minimum Value | Maximum Value | Unit |
|---|---|---|---|---|
| Supply Voltage | 1.8 V, 2.7 V, 5 V | -0.3 V | 6 V | V |
| Input Offset Voltage (VOS) | 4 mV | 1 mV | 6 mV | mV |
| Input Bias Current (IB) | 35 nA | 15 nA | 50 nA | nA |
| Supply Current (per channel) | 100 μA | 103 μA | 205 μA | μA |
| Gain Bandwidth Product | 1.4 MHz | - | - | MHz |
| Output Swing (600-Ω Load) | - | 80 mV from Rail | - | mV |
| Output Swing (2-kΩ Load) | - | 30 mV from Rail | - | mV |
| Temperature Range | - | -40°C | 125°C | °C |
| Package | SOT-23 (5-pin), SC-70 (5-pin) | - | - | - |
Key Features
- Specified at 1.8 V, 2.7 V, and 5 V supply voltages.
- Rail-to-rail input and output.
- Input common-mode voltage extends 200 mV beyond the supplies.
- Low supply current (100 μA per channel).
- High gain bandwidth product (1.4 MHz at 1.8 V).
- Ultra tiny packages (SOT-23 and SC-70).
- High DC gain (101 dB).
- Ability to drive 600-Ω load and up to 1000-pF capacitive load with minimal ringing.
Applications
- Phones and tablets.
- Wearables.
- Health monitoring devices.
- Portable and battery-powered electronic equipment.
- Battery monitoring and high-side current sense amplifiers.
Q & A
- What is the supply voltage range for the LMV931MG/NOPB? The LMV931MG/NOPB operates from 1.8-V to 5.5-V supply voltages.
- What is the typical input offset voltage for the LMV931MG/NOPB? The typical input offset voltage is 4 mV.
- What is the gain bandwidth product of the LMV931MG/NOPB at 1.8 V supply voltage? The gain bandwidth product is 1.4 MHz.
- What is the maximum output swing with a 600-Ω load at 1.8 V supply? The output swing is within 80 mV from the rail with a 600-Ω load.
- What are the typical package options for the LMV931MG/NOPB? The device is available in SOT-23 (5-pin) and SC-70 (5-pin) packages.
- What is the temperature range for the LMV931MG/NOPB? The device operates over a temperature range of -40°C to 125°C.
- What are some common applications for the LMV931MG/NOPB? Common applications include phones, tablets, wearables, health monitoring devices, and portable electronic equipment.
- How much current does the LMV931MG/NOPB typically consume per channel? The device typically consumes 100 μA per channel.
- Does the LMV931MG/NOPB have rail-to-rail input and output capabilities? Yes, the device features rail-to-rail input and output.
- Can the LMV931MG/NOPB drive capacitive loads? Yes, it can drive up to 1000-pF capacitive loads with minimal ringing.
