Introduction of Texas Instruments (TI) INA1650IPWR

Product Overview:

The Texas Instruments (TI) INA1650IPWR is a high-precision, low-power, instrumentation amplifier designed for accurate measurement of small differential signals. This device features an integrated high-precision analog-to-digital converter (ADC) front-end and is ideal for use in low-voltage, high-precision applications. The INA1650IPWR is optimized for current sensing and voltage measurement applications, making it suitable for use in power management, industrial, automotive, and consumer electronics.

The INA1650IPWR features a wide input common-mode voltage range, high input impedance, and a low offset voltage, which are essential for maintaining accuracy in sensitive signal conditioning tasks. This device is especially useful in systems requiring precise current measurement and where low power consumption is a priority.

Product Features:

• High Precision and Low Offset Voltage: The INA1650IPWR features a low offset voltage of typically 50 µV, ensuring accurate differential signal measurement without significant drift.
• Wide Input Voltage Range: The device supports a wide common-mode input voltage range of -0.3V to +40V, allowing it to operate with a broad variety of signal types and voltages.
• Low Power Consumption: Operating with a low quiescent current of just 80 µA (typical), the INA1650IPWR is suitable for battery-powered and portable applications, where minimizing power consumption is critical.
• Rail-to-Rail Output: The device provides rail-to-rail output, enabling it to drive a wide range of external devices with the full voltage swing of the power supply.
• Integrated ADC Front-End: The integrated ADC front-end simplifies the design of systems requiring high accuracy, reducing the need for external ADC components.
• Wide Bandwidth: The INA1650IPWR has a wide bandwidth (1 MHz), making it suitable for fast signal processing applications.
• Programmable Gain: The gain of the INA1650IPWR can be adjusted externally, allowing for flexible scaling of the differential input signal to meet specific application requirements.
• Low Total Harmonic Distortion (THD): This ensures the device performs well in audio and other signal-sensitive applications that require high fidelity.
• Operating Temperature Range: The device operates in a wide temperature range from -40°C to +125°C, making it suitable for use in harsh industrial and automotive environments.
• Small Package: The INA1650IPWR is housed in a TSSOP-8 package, providing a compact and space-saving solution for applications with limited board space.

Applications:

The INA1650IPWR is suitable for a wide range of applications that require accurate differential signal amplification and precise current or voltage measurements:

1. Current Sensing: Ideal for power management systems, battery monitoring, motor control, and power supply designs where accurate current measurement is essential.
2. Voltage Measurement: Used in precision voltage measurement systems for industrial, automotive, and consumer applications.
3. Signal Conditioning: Suitable for use in sensor signal conditioning, where small voltage differences need to be amplified for further processing.
4. Automotive Applications: Can be used in automotive power management and battery management systems, where accurate current sensing and voltage measurement are critical.
5. Portable Battery-Powered Devices: Due to its low power consumption, it is ideal for portable and battery-operated devices that need efficient current or voltage monitoring.
6. Test and Measurement: Provides high accuracy and low offset, making it suitable for applications in test and measurement equipment requiring high-precision differential signal amplification.

Frequently Asked Questions:

What is the input voltage range of the INA1650IPWR?

The INA1650IPWR supports a common-mode voltage range of -0.3V to +40V, making it versatile for various input signal types.

How low is the offset voltage of the INA1650IPWR?

The INA1650IPWR has a typical offset voltage of 50 µV, ensuring high accuracy and minimal drift in signal processing applications.

What is the quiescent current of the INA1650IPWR?

The INA1650IPWR operates with a typical quiescent current of 80 µA, making it suitable for low-power applications such as battery-powered systems.

Can I use the INA1650IPWR in high-speed applications?

Yes, the INA1650IPWR has a 1 MHz bandwidth, making it suitable for fast signal processing applications that require a wide frequency response.

Is the gain of the INA1650IPWR adjustable?

Yes, the gain of the INA1650IPWR can be adjusted externally, allowing for flexible scaling of the differential input signal.

What is the output configuration of the INA1650IPWR?

The INA1650IPWR provides a rail-to-rail output, which allows the output signal to swing close to the supply rails, making it compatible with a wide range of external devices.

What is the operating temperature range of the INA1650IPWR?

The INA1650IPWR operates within a wide temperature range of -40°C to +125°C, making it suitable for industrial and automotive applications that require operation in extreme temperatures.

In which package is the INA1650IPWR available?

The INA1650IPWR is available in a TSSOP-8 package, which is compact and ideal for space-constrained designs.