Overview
The INA195AIDBVTG4 is a current shunt monitor from Texas Instruments, part of the INA193-INA198 family. This device is designed to sense voltage drops across shunts at common-mode voltages ranging from -16 V to +80 V. It operates from a single power supply of +2.7 V to +18 V and is housed in a compact SOT-23 package. The INA195AIDBVTG4 is particularly useful for applications requiring high accuracy and wide common-mode range, making it suitable for various industrial and automotive applications.
Key Specifications
| Parameter | Typical Value | Unit | Conditions |
|---|---|---|---|
| Gain | 100 V/V | ||
| Supply Voltage | 2.7 to 18 | V | |
| Analog Inputs (VIN+, VIN-) | -18 to 18 | V | |
| Differential Input Voltage (VIN+ - VIN-) | -18 to 18 | V | |
| Common-Mode Input Range | -16 to 80 | V | |
| Common-Mode Rejection Ratio (CMRR) | 94 dB (typ), 100 dB (over temperature) | dB | VIN+ = -16 V to 80 V |
| Offset Voltage (RTI) | ±0.5 mV (typ), ±3 mV (over temperature) | mV | |
| Gain Error | ±0.2% (typ), ±2% (over temperature) | % | VSENSE = 20 mV to 100 mV |
| Total Output Error | ±0.75% (typ), ±3% (over temperature) | % | VSENSE = 100 mV |
| Bandwidth | 200 kHz | kHz | CLOAD = 5 pF |
| Output Impedance | 1.5 Ω | Ω | |
| Maximum Capacitive Load | 10 nF | nF | No sustained oscillation |
Key Features
- High common-mode range: -16 V to +80 V
- Single power supply operation: +2.7 V to +18 V
- High gain accuracy: 100 V/V with ±0.2% gain error at 25°C
- Low offset voltage: ±0.5 mV at 25°C
- High common-mode rejection ratio (CMRR): 94 dB typical
- Compact SOT-23 package
- Extended operating temperature range: -40°C to +125°C
- Low power consumption: Maximum of 900 μA supply current
Applications
- Automotive systems: Battery management, motor control, and power monitoring
- Industrial control systems: Current sensing in power supplies, motor drives, and industrial automation
- Power management: Overcurrent protection, power monitoring, and energy measurement
- Medical devices: High-accuracy current sensing in medical equipment
- Aerospace and defense: High-reliability current monitoring in aerospace and defense applications
Q & A
- What is the common-mode input range of the INA195AIDBVTG4?
The common-mode input range is from -16 V to +80 V.
- What is the gain of the INA195AIDBVTG4?
The gain is 100 V/V.
- What is the supply voltage range for the INA195AIDBVTG4?
The supply voltage range is from +2.7 V to +18 V.
- What is the typical offset voltage of the INA195AIDBVTG4?
The typical offset voltage is ±0.5 mV at 25°C.
- What is the bandwidth of the INA195AIDBVTG4?
The bandwidth is 200 kHz with a 5 pF load capacitance.
- What is the maximum capacitive load for the INA195AIDBVTG4?
The maximum capacitive load is 10 nF without sustained oscillation.
- What is the operating temperature range of the INA195AIDBVTG4?
The operating temperature range is from -40°C to +125°C.
- What is the typical common-mode rejection ratio (CMRR) of the INA195AIDBVTG4?
The typical CMRR is 94 dB.
- What package type is the INA195AIDBVTG4 available in?
The INA195AIDBVTG4 is available in a SOT-23 package.
- What are some typical applications of the INA195AIDBVTG4?
Typical applications include automotive systems, industrial control systems, power management, medical devices, and aerospace and defense applications.
