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INA2181A2IDGSR
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FabricanteTexas Instruments
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Peça do Fabricante #INA2181A2IDGSR
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Especificações
| Atributo | Valor |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Amplifier Type | Current Sense |
| Number of Circuits | 2 |
| Output Type | Rail-to-Rail |
| Slew Rate | 2V/µs |
| -3 dB Bandwidth | 210 kHz |
| Current - Input Bias | 75 µA |
| Voltage - Input Offset | 100 µV |
| Supply Current | 356µA |
| Voltage - Supply Span(Min) | 2.7 V |
| Voltage - Supply Span(Max) | 5.5 V |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount |
Visão Geral
Description
The INA2181A2IDGSR is housed in a small MSOP-10 package, which saves space on the PCB and is ideal for compact designs. It offers low offset voltage and low drift, contributing to its high accuracy. The amplifier also includes features like a reference voltage pin, which can be used to set a reference voltage for the output, making it suitable for interfacing with ADCs or other digital systems. Its robust design and high performance make it an excellent choice for industrial, automotive, and consumer electronics applications.
Equivalent
1. MAX44284 by Maxim Integrated: A high-precision current-sense amplifier.
2. LTC6102 by Analog Devices: A high-voltage, high-side current-sense amplifier.
3. AD8418 by Analog Devices: A high-speed, precision current-sense amplifier.
4. INA180 by Texas Instruments: A cost-effective, low-side current-sense amplifier.
These alternatives vary in specifications; verify compatibility with your specific application requirements.
Features
1. Wide Common-Mode Voltage Range: It operates effectively over a range of -0.2V to +26V, accommodating various applications.
2. Gain Options: Offers a fixed gain of 100 V/V, suitable for precise current measurements.
3. Low Offset Voltage: With a low offset voltage of typically 35 µV, it ensures accurate readings and minimizes measurement errors.
4. Bandwidth: Provides a bandwidth of 150 kHz, allowing for the measurement of dynamic signals.
5. Supply Voltage: Operates with a single power supply ranging from 2.7V to 5.5V.
6. Low Quiescent Current: Consumes a quiescent current of just 250 µA, making it energy-efficient.
7. Package: Available in a small, space-saving 8-pin VSSOP package, ideal for compact designs.
8. Temperature Range: Functions effectively in temperatures from -40°C to +125°C, suitable for harsh environments.
These features make the INA2181A2IDGSR ideal for applications such as battery management systems, power supplies, and motor controls where precise current sensing is critical.
Pinout
This specific model comes in a 10-pin VSSOP (DGSR) package. Here are the pin functions:
1. IN+ (1, 6): Positive input for the differential voltage across the shunt resistor.
2. IN- (2, 5): Negative input for the differential voltage across the shunt resistor.
3. REF1 (3): Reference voltage input for channel 1.
4. OUT1 (4): Output voltage for channel 1, proportional to the differential input voltage.
5. REF2 (7): Reference voltage input for channel 2.
6. OUT2 (8): Output voltage for channel 2, proportional to the differential input voltage.
7. VS (9): Power supply pin.
8. GND (10): Ground connection.
The INA2181A2IDGSR is part of the INA2181 series, which offers different gain options; the "A2" denotes a gain of 100 V/V. It provides accurate current sensing and operational stability over a wide temperature range.