Overview
The LMV602MAX/NOPB is a dual low-voltage, low-power operational amplifier produced by Texas Instruments. It is part of the LMV60x family, which includes single, dual, and quad operational amplifiers designed for low-voltage portable applications. The LMV602 is particularly suited for area-constrained printed-circuit board requirements, making it ideal for portable and battery-operated electronics. The device is built using all CMOS technology, resulting in ultra-low input bias current and low power consumption.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Offset Voltage (VOS) | V+ = 2.7 V, V− = 0 V, VCM = V+ / 2 | 0.55 | 5 | mV | |
| Input Bias Current (IB) | 0.02 | pA | |||
| Input Offset Current (IOS) | 6.6 | fA | |||
| Supply Current (IS) per Amplifier | V+ = 2.7 V | 100 | 170 | µA | |
| Supply Current in Shutdown Mode | VSD = 0 V | 45 | 1 | pA | |
| Common-Mode Rejection Ratio (CMRR) | 0 V ≤ VCM ≤ 1.7 V | 80 | dB | ||
| Power Supply Rejection Ratio (PSRR) | 2.7 V ≤ V+ ≤ 5 V | 82 | dB | ||
| Large Signal Voltage Gain (AV) | RL = 10 kΩ to 1.35 V | 113 | dB | ||
| Output Swing | RL = 10 kΩ | 30 | 30 | mV | |
| Output Short-Circuit Current | Sourcing | 32 | mA | ||
| Slew Rate (SR) | RL = 10 kΩ | 1 | V/µs | ||
| Turn-On Time from Shutdown | 5 | µs |
Key Features
- Low-Voltage Operation: The LMV602 operates from a supply voltage as low as 2.7 V, making it suitable for battery-powered devices.
- Low Power Consumption: The device has a low supply current of 100 µA to 170 µA per amplifier and reduces to 45 pA in shutdown mode, enhancing battery life in portable applications.
- Ultra-Low Input Bias Current: Built using all CMOS technology, the LMV602 features an ultra-low input bias current of 0.02 pA.
- Rail-to-Rail Output: The amplifier provides rail-to-rail output, allowing the output voltage to swing close to the supply rails.
- Class AB Turnaround Stage: This patented stage reduces offset and noise contributions while maintaining a high slew rate and open-loop gain.
- Shutdown Option: The LMV602 includes a shutdown pin that can be used to reduce power consumption in idle states.
- Compact Packaging: Available in space-saving 8-pin VSSOP and SOIC packages, ideal for area-constrained PCB designs.
Applications
The LMV602 is designed for use in various low-voltage, low-power applications, including:
- Portable Electronics: Such as handheld devices, smartphones, and tablets.
- Battery-Operated Devices: Where low power consumption is critical to extend battery life.
- Medical Devices: For applications requiring low noise and low power consumption.
- Industrial Automation: In systems where compact size and low power are essential.
- Aerospace and Defense: For applications needing reliable, low-power operational amplifiers.
Q & A
- What is the typical supply current of the LMV602 per amplifier?
The typical supply current of the LMV602 per amplifier is 170 µA at 2.7 V supply voltage. - What is the input offset voltage of the LMV602?
The input offset voltage of the LMV602 is typically 0.55 mV. - What is the slew rate of the LMV602?
The slew rate of the LMV602 is 1 V/µs. - What are the package options for the LMV602?
The LMV602 is available in 8-pin VSSOP and SOIC packages. - Does the LMV602 have a shutdown feature?
Yes, the LMV602 includes a shutdown pin that reduces the supply current to 45 pA in shutdown mode. - What is the common-mode rejection ratio (CMRR) of the LMV602?
The CMRR of the LMV602 is typically 80 dB. - What is the power supply rejection ratio (PSRR) of the LMV602?
The PSRR of the LMV602 is typically 82 dB. - What is the large signal voltage gain of the LMV602?
The large signal voltage gain of the LMV602 is typically 113 dB. - How does the Class AB turnaround stage benefit the LMV602?
The Class AB turnaround stage reduces offset and noise contributions while maintaining a high slew rate and open-loop gain. - What are some typical applications of the LMV602?
The LMV602 is typically used in portable electronics, battery-operated devices, medical devices, industrial automation, and aerospace and defense applications.
