Overview
The INA333SJD is a precision, low-power, low-noise instrumentation amplifier produced by Texas Instruments. Designed for applications requiring high accuracy and stability, this component is ideal for signal conditioning in industrial, medical, and consumer electronics. Its ultra-low power consumption and high common-mode rejection ratio (CMRR) make it a standout choice for battery-powered devices and sensitive measurement systems. The INA333SJD is housed in a compact package, ensuring ease of integration into space-constrained designs.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 1.8 to 5.5 | V | |
| Quiescent Current | 50 | µA | |
| Gain Range | 1 to 1000 | Programmable via external resistor | |
| Input Offset Voltage | 25 | µV | Max |
| CMRR | 100 | dB | Min |
| Bandwidth | 350 | kHz | Gain = 100 |
| Operating Temperature | -40 to 125 | °C | |
| Package | SOIC-8 |
Key Features
- Ultra-Low Power Consumption: Ideal for battery-powered applications.
- High Precision: Low input offset voltage and drift ensure accurate signal conditioning.
- Wide Gain Range: Programmable gain from 1 to 1000 for versatile use.
- Low Noise: Ensures clean signal amplification in sensitive applications.
- High CMRR: Minimizes errors from common-mode signals.
Applications
The INA333SJD is widely used in various industries due to its precision and low-power characteristics. Key applications include:
- Medical Devices: ECG and EEG signal amplification.
- Industrial Sensors: Strain gauge and thermocouple signal conditioning.
- Consumer Electronics: Portable measurement devices and wearables.
- Automotive: Sensor signal amplification in control systems.
Q & A
1. What is the supply voltage range for the INA333SJD?
The INA333SJD operates with a supply voltage range of 1.8V to 5.5V.
2. How is the gain of the INA333SJD set?
The gain is programmable from 1 to 1000 using an external resistor.
3. What is the typical quiescent current of the INA333SJD?
The typical quiescent current is 50µA.
4. What is the maximum input offset voltage?
The maximum input offset voltage is 25µV.
5. What is the CMRR of the INA333SJD?
The CMRR is at least 100dB.
6. What is the bandwidth of the INA333SJD at a gain of 100?
The bandwidth is 350kHz at a gain of 100.
7. What is the operating temperature range?
The operating temperature range is -40°C to 125°C.
8. What package does the INA333SJD come in?
The INA333SJD is available in an SOIC-8 package.
9. Is the INA333SJD suitable for medical applications?
Yes, its precision and low noise make it ideal for medical devices like ECG and EEG systems.
10. Can the INA333SJD be used in automotive applications?
Yes, it is suitable for sensor signal amplification in automotive control systems.
