Overview
The LMX358IQ2T is part of the LMX3xx series, a family of single, dual, and quad low-voltage, general-purpose operational amplifiers produced by STMicroelectronics. These devices are designed to operate from a supply voltage range of 2.3 V to 5.5 V, making them ideal for low-power and battery-powered applications. The LMX358 specifically is a dual operational amplifier, available in compact packages such as the 8-pin SOT23 and 8-pin µMAX.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Supply Voltage | VCC to VEE | -0.3V to +8V | - | - | - | V |
| Input Offset Voltage | VOS | VCC = +2.7V, VEE = 0V, VOUT = VCC/2, VCM = 1V | 1 | 6 | 9 | mV |
| Input Bias Current | IB | VCC = +2.7V, VEE = 0V, VOUT = VCC/2, VCM = 1V | 18 | 50 | 70 | nA |
| Common-Mode Rejection Ratio | CMRR | -0.2V < VCM < 1.8V | 72 | 92 | 96 | dB |
| Power-Supply Rejection Ratio | PSRR | 2.3V < VCC < 7V, VOUT = 1V | 82 | 96 | - | dB |
| Gain-Bandwidth Product | GBW | CL = 200pF | - | 1.3 | - | MHz |
| Slew Rate | SR | 1V step input | - | 1 | - | V/µs |
| Quiescent Current per Amplifier | ICC | VCC = +2.7V | 105 | - | 150 | µA |
| Output Voltage Swing | VOUT | RL = 2kΩ to VEE | 25 | - | 60 | mV |
Key Features
- Low-voltage operation: 2.3 V to 5.5 V supply voltage range.
- Space-saving packages: Available in 8-pin SOT23 and 8-pin µMAX packages.
- Rail-to-Rail Output Swing: Ensures maximum output voltage range.
- No Phase Reversal for Overdriven Inputs: Prevents phase reversal in overdrive conditions.
- No Crossover Distortion: Maintains signal integrity without crossover distortion.
- High Gain-Bandwidth Product: 1.3 MHz GBW for high-frequency applications.
- Low Quiescent Current: 105 µA per amplifier at VCC = +2.7V.
- High Common-Mode Rejection Ratio and Power-Supply Rejection Ratio: Ensures robust performance against common-mode and power-supply noise.
Applications
- Cellular Phones: Ideal for low-power, low-voltage requirements.
- Laptops: Suitable for battery-powered and portable devices.
- Low-Power, Low-Voltage Applications: General-purpose use in low-power systems.
- Portable/Battery-Powered Equipment: Compact packages make it ideal for space-constrained designs.
- Cordless Phones: Low power consumption and small footprint are beneficial.
- Active Filters: High GBW and low noise make it suitable for active filter designs.
Q & A
- What is the supply voltage range of the LMX358IQ2T?
The LMX358IQ2T can operate from a supply voltage range of 2.3 V to 5.5 V.
- What are the available package options for the LMX358?
The LMX358 is available in 8-pin SOT23 and 8-pin µMAX packages.
- What is the quiescent current per amplifier at VCC = +2.7V?
The quiescent current per amplifier is 105 µA at VCC = +2.7V.
- Does the LMX358IQ2T have rail-to-rail output swing?
Yes, the LMX358IQ2T features rail-to-rail output swing.
- What is the gain-bandwidth product of the LMX358?
The gain-bandwidth product is 1.3 MHz.
- Is the LMX358 suitable for high-frequency applications?
Yes, with a gain-bandwidth product of 1.3 MHz, it is suitable for high-frequency applications.
- What are some common applications of the LMX358?
Common applications include cellular phones, laptops, low-power and low-voltage systems, portable/battery-powered equipment, cordless phones, and active filters.
- Does the LMX358 have phase reversal for overdriven inputs?
No, the LMX358 does not have phase reversal for overdriven inputs.
- What is the common-mode rejection ratio of the LMX358?
The common-mode rejection ratio is typically 92 dB.
- How does the LMX358 perform in terms of power-supply rejection ratio?
The power-supply rejection ratio is typically 96 dB.
