Texas Instruments' model INA199A2DCKR (click to buy now) is a current-sense amplifier that is a voltage-output, current-shunt monitor (also called a current-sense amplifier) used for overcurrent protection, system-optimized precision current measurement, or closed-loop feedback circuits. The INA199A2DCKR senses the voltage drop across a shunt resistor at a common-mode voltage of –0.3V to 26V, independent of the supply voltage, and is available in three fixed gains: 50V/V, 100V/V, and 200V/V.
This family of devices uses a zero-drift architecture with low offset to maintain the maximum voltage drop across the shunt resistor to a minimum of 10mV full-scale when sensing current. The INA199A2DCKR operates from a single supply of 2.7V to 26V and consumes a maximum supply current of 100µA. All versions are rated from –40°C to 125°C in SC70-6 package.
Functional features of INA199A2DCKR
1. Differential amplifier function: INA199A2DCKR has a differential amplifier function at the input end and can handle differential mode signals, that is, the difference between two input signals. It can amplify the differential mode of the signal under test and suppress common mode interference, thereby improving signal quality.
2. Gain and frequency response: INA199A2DCKR has high gain and wide frequency response range, and can be suitable for a variety of application scenarios. It has an adjustable gain range and extremely low offset voltage and offset current, providing accurate amplification and measurement.
3. Wide power supply voltage range: INA199A2DCKR is suitable for a wide voltage range and can work normally under a power supply voltage of 2.7V to 26V. This makes it ideal for use in portable and low-power devices, while also providing greater flexibility and compatibility.
4. Low power consumption: As a low-power differential amplifier, INA199A2DCKR has good energy efficiency characteristics and can perform excellent performance in low-power applications. It adopts a low-power design, which reduces power consumption and extends battery life.
5. Low noise: INA199A2DCKR has low noise characteristics and can reduce noise interference in the signal as much as possible. This makes it ideal for applications requiring high-precision measurement and transmission, such as sensor interfaces, medical equipment, and audio equipment.
6. Wide temperature range: INA199A2DCKR has a wide operating temperature range and can work normally in an environment from -40°C to 125°C. This makes it suitable for a variety of industrial and automotive applications and capable of handling harsh working environments.
Application fields of INA199A2DCKR
INA199A2DCKR is suitable for many electronic systems and applications. Its main application areas are as follows:
1. Current measurement: INA199A2DCKR can be used in current measurement applications, such as current detection, current sensors and power supply monitoring. Its high-precision differential amplifier design ensures high accuracy and stability of current measurements.
2. Power management: This differential amplifier can be used in power management systems to monitor power transmission and current distribution. Its ability to measure and amplify small signals helps ensure the proper operation and efficiency of power systems.
3. Industrial automation: INA199A2DCKR is widely used in industrial automation systems. It can be used to detect and measure sensor output signals, such as temperature sensors, pressure sensors, and flow sensors, to achieve precise control and monitoring of industrial processes.
4. Instrumentation: This device is also suitable for instrumentation applications. For example, it can be used to measure, amplify and transmit current signals in precision measuring instruments to ensure the accuracy and stability of the instrument.
5. Medical equipment: INA199A2DCKR is a high-precision differential amplifier, so it is also widely used in medical equipment. It can be used to measure the weak current signals output by biosensors, thereby achieving accurate detection and monitoring of biological parameters (such as ECG signals).
INA199A2DCKR parameters
Brand: Texas Instruments
Product Category: Operational Amplifier
Package/casing: SC70-6
Power supply voltage, single/double (±): 2.7V~26V
Installation type: SMT
Working temperature: -40℃~+125℃
Output type:-
Slew rate: 400mV/μs
Amplifier Type: Current Sense
Output current per channel:-
Number of channels: 1
Printing code: OBH
Certification information: RoHS
Length x Width/Dimensions: 2.00 x 1.25mm
Height: 1.10mm
Number of pins: 6Pin
Storage temperature: -65~+150℃
Component life cycle: Active
Pin distance: 0.65mm
Common Mode Rejection Ratio - CMRR: 120dB
Output current accuracy: ±1.5%
Pin diagram of INA199A2DCKR
Schematic diagram of INA199A2DCKR
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