TLV2474QDRG4Q1

TLV2474QDRG4Q1 Application Field and Working Principle

The TLV2474QDRG4Q1 is a low-power, rail-to-rail, designer-friendly instrumentation amplifier typically used in test and measurement, industrial and automotive applications. The device is provided in a space-saving 8-pin SOIC (wide-body) package with an operating range up to 36V for rail-to-rail flexibility.

TLV2474QDRG4Q1 is an operational amplifier (Op-amp) sold by Texas Instruments that belongs to the family of linear amplifiers-instrumentation, note this family in turn contains two subfamilies, operational amplifiers (Op-amps) and buffer amps.

Area of Application

The TLV2474QDRG4Q1 is primarily used in test and measurement, industrial and automotive applications due to its low-power consumption and rail-to-rail capabilities. Specifically, the device is frequently found in low-level sensor and low-level signal conditioning applications such as those requiring strain gauges, 4-20mA current loops, or voltage measurements in industrial-control systems and automotive systems.

In addition, the design of the TLV2474QDRG4Q1 provides designers with the flexibility to use the amplifier in a variety of applications, from simple buffering to output compensation and filtering.

Working Principle

At its core, the TLV2474QDRG4Q1 is an instrumentation amplifier. It has three linear inputs that are typically referred to as the non-inverting (IN+), inverting (IN-) and feedback (FB) inputs.

The output of the amplifier is the difference (voltage or current) between the two inputs. This output is then amplified by the gain of the amplifier, which is determined by the value of the feedback resistor (Rf) connected to the feedback input.

The output is also affected by the input offset voltage. This can be minimized by providing a common mode voltage or adjusted with the offset null pins, which can reduce the offset to less than 2mV.

The TLV2474QDRG4Q1 also has a power-saving ‘Low-Power Sleep Mode’ that reduces the power consumption of the device when idle. This can be enabled or disabled by setting the ‘SLEEP’ pin high or low respectively.

Conclusion

The TLV2474QDRG4Q1 provides designers with the flexibility to use the amplifier in a variety of applications, from simple buffering to output compensation and filtering. In addition, the low-power sleep mode of the device makes the TLV2474QDRG4Q1 an ideal choice for automotive and industrial applications.