Overview
The LMV844MTX is a low-voltage, low-power operational amplifier produced by Texas Instruments (formerly National Semiconductor). This device is part of the LMV84x family, which is known for its near-precision specifications, including low noise, low temperature drift, and low offset voltage. The LMV844MTX operates with supply voltages ranging from 2.7 V to 12 V and features rail-to-rail input and output capability, making it ideal for high impedance sensor interfaces and battery-powered applications.
The device is available in a 14-pin TSSOP package, which is compact and suitable for area-constrained PCBs and portable electronics. Its low supply current of 1 mA per channel and extended industrial temperature range of −40°C to 125°C further enhance its versatility.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 2.7 V to 12 V | V |
| Supply Current per Channel | 1 mA | mA |
| Unity Gain Bandwidth | 4.5 MHz | MHz |
| Open-Loop Gain | 133 dB | dB |
| Input Offset Voltage | 500 µV (Maximum) | µV |
| Input Bias Current | 0.3 pA | pA |
| CMRR | 112 dB | dB |
| PSSR | 108 dB | dB |
| Input Voltage Noise | 20 nV/√Hz | nV/√Hz |
| Temperature Range | −40°C to 125°C | °C |
| Package Type | 14-pin TSSOP |
Key Features
- Wide supply voltage range: 2.7 V to 12 V
- Low supply current: 1 mA per channel
- Unity gain bandwidth: 4.5 MHz
- Open-loop gain: 133 dB
- Low input offset voltage: 500 µV maximum
- Low input bias current: 0.3 pA
- High CMRR and PSSR: 112 dB and 108 dB respectively
- Low input voltage noise: 20 nV/√Hz
- Rail-to-rail input and output (RRIO)
- Small package options: 14-pin TSSOP for the LMV844
- Extended industrial temperature range: −40°C to 125°C
Applications
- High impedance sensor interfaces
- Battery-powered instrumentation
- High gain and instrumentation amplifiers
- DAC buffers and active filters
- Portable medical devices
- Audio and data acquisition systems
- Test and measurement equipment
Q & A
- What is the supply voltage range of the LMV844MTX?
The supply voltage range of the LMV844MTX is from 2.7 V to 12 V.
- What is the typical supply current per channel for the LMV844MTX?
The typical supply current per channel is 1 mA.
- What is the unity gain bandwidth of the LMV844MTX?
The unity gain bandwidth is 4.5 MHz.
- What is the maximum input offset voltage of the LMV844MTX?
The maximum input offset voltage is 500 µV.
- What is the input bias current of the LMV844MTX?
The input bias current is 0.3 pA.
- Does the LMV844MTX have rail-to-rail input and output capability?
- What are the typical applications of the LMV844MTX?
Typical applications include high impedance sensor interfaces, battery-powered instrumentation, high gain and instrumentation amplifiers, DAC buffers, active filters, portable medical devices, audio and data acquisition systems, and test and measurement equipment.
- What is the operating temperature range of the LMV844MTX?
The operating temperature range is −40°C to 125°C.
- What package types are available for the LMV844MTX?
The LMV844MTX is available in a 14-pin TSSOP package.
- Is the LMV844MTX suitable for portable electronics?
