Overview
The LMV931SN3T1G, produced by onsemi, is a single CMOS low-voltage operational amplifier. It is part of the LMV931 series, known for its rail-to-rail input and output swing, making it suitable for a wide range of applications. This amplifier operates on single-sided power supplies ranging from 1.8 V to 5.0 V, which is ideal for battery-operated and portable devices. The LMV931SN3T1G is packaged in a space-saving SC70-5 package, making it beneficial for crowded PCBs.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Offset Voltage (VIO) | (−40°C to +125°C) | 1 | 6 | mV | |
| Input Offset Voltage Average Drift (TCVIO) | 5.5 | μV/°C | |||
| Input Bias Current (IB) | (−40°C to +125°C) | < 1 | nA | ||
| Supply Current (per Channel) (ICC) | In Active Mode, VS = 1.8 V | 75 | 185 | 205 | μA |
| Common Mode Rejection Ratio (CMRR) | 0 V ≤ VCM ≤ 0.6 V, 1.4 V ≤ VCM ≤ 1.8 V | 50 | 70 | dB | |
| Power Supply Rejection Ratio (PSRR) | 1.8 V ≤ V+ ≤ 5 V, VCM = 0.5 V | 50 | 70 | dB | |
| Large Signal Voltage Gain (AV) | RL = 600 Ω, VO = 0.2 V to 1.6 V | 77 | 101 | dB | |
| Slew Rate (SR) | 0.35 | V/μs | |||
| Gain Bandwidth Product (GBWP) | 1.4 | MHz | |||
| Output Swing (VOH/VOL) | RL = 600 Ω, VIN = ±100 mV | 1.65 / 0.077 | 1.72 / 0.105 | V |
Key Features
- Rail-to-rail input and output swing for improved signal-to-noise performance.
- Low quiescent current (max 205 μA per channel) suitable for battery-operated devices.
- No output crossover distortion and no output phase-reversal from overdriven input.
- Extended industrial temperature range: −40°C to +125°C.
- Small packages (SC70-5 for LMV931) ideal for crowded PCBs.
- No output phase-reversal from overdriven input.
Applications
- Notebook computers and other portable battery-operated devices.
- Hand-held instruments and PDAs.
- Active filters and low-side current monitoring.
Q & A
- What is the operating voltage range of the LMV931SN3T1G? The LMV931SN3T1G operates on single-sided power supplies ranging from 1.8 V to 5.0 V.
- What is the typical input offset voltage of the LMV931SN3T1G? The typical input offset voltage is 6 mV over the temperature range of −40°C to +125°C.
- What is the quiescent current of the LMV931SN3T1G? The quiescent current is typically 185 μA per channel, with a maximum of 205 μA.
- What is the common mode rejection ratio (CMRR) of the LMV931SN3T1G? The CMRR is 50 to 70 dB over the specified temperature range.
- What is the slew rate of the LMV931SN3T1G? The slew rate is typically 0.35 V/μs.
- What is the gain bandwidth product (GBWP) of the LMV931SN3T1G? The GBWP is 1.4 MHz.
- What are the typical output swing values for the LMV931SN3T1G? With a 600 Ω load, the output swing is typically 1.65 V to 0.077 V from the rail.
- Is the LMV931SN3T1G suitable for high-temperature applications? Yes, it has an extended industrial temperature range of −40°C to +125°C.
- What package type is the LMV931SN3T1G available in? The LMV931SN3T1G is available in a SC70-5 package.
- What are some common applications of the LMV931SN3T1G? Common applications include notebook computers, hand-held instruments, PDAs, active filters, and low-side current monitoring.
