Overview
The REF34-Q1 from Texas Instruments is a low-temperature-drift, low-power, high-precision CMOS voltage reference. This device is designed to provide high accuracy and stability, making it suitable for a variety of applications, particularly in the automotive sector. The REF34-Q1 is AEC-Q100 qualified, ensuring it meets stringent automotive standards.
Key Specifications
| Parameter | Value |
|---|---|
| Initial Accuracy | ±0.05% (maximum) |
| Temperature Coefficient | 6 ppm/°C (maximum) |
| Operating Temperature Range | −40°C to +125°C |
| Output Voltage Options | 2.5V, 3.0V, 3.3V, 4.096V, 5.0V |
| Output Current | ±10 mA |
| Quiescent Current | 95 µA (maximum) |
| Shutdown Mode Current | 3 µA (maximum) |
| Input Voltage | Up to 12 V |
| Output 1/f Noise (0.1 Hz to 10 Hz) | 3.8 µV PP/V |
| Long-term Stability | 25 ppm/1000 hrs |
| Package Options | 6-pin and 5-Pin SOT-23, 8-pin MSOP |
Key Features
- Low temperature drift of 6 ppm/°C
- High precision with ±0.05% initial accuracy
- Low power consumption with a quiescent current of 95 µA
- Low shutdown mode current of 3 µA
- Very low output noise of 3.8 µV PP/V
- Excellent long-term stability of 25 ppm/1000 hrs
- AEC-Q100 qualified for automotive applications
- Enable pin for shutdown mode
Applications
- Body control modules
- On-board chargers
- Traction inverters
- Battery management systems
- Advanced driver assistance systems
- Battery-powered applications
Q & A
- What is the operating temperature range of the REF34-Q1? The operating temperature range is −40°C to +125°C.
- What are the output voltage options for the REF34-Q1? The output voltage options are 2.5V, 3.0V, 3.3V, 4.096V, and 5.0V.
- What is the maximum quiescent current of the REF34-Q1? The maximum quiescent current is 95 µA.
- How much current does the REF34-Q1 consume in shutdown mode? The REF34-Q1 consumes 3 µA in shutdown mode.
- What is the input voltage range for the REF34-Q1? The input voltage range is up to 12 V.
- What is the output 1/f noise of the REF34-Q1? The output 1/f noise is 3.8 µV PP/V.
- What is the long-term stability of the REF34-Q1? The long-term stability is 25 ppm/1000 hrs.
- In what packages is the REF34-Q1 available? The REF34-Q1 is available in 6-pin and 5-Pin SOT-23 packages and an 8-pin MSOP package.
- Is the REF34-Q1 suitable for automotive applications? Yes, the REF34-Q1 is AEC-Q100 qualified for automotive applications.
- Does the REF34-Q1 have a shutdown feature? Yes, the REF34-Q1 has an enable pin that can set the device into shutdown mode.
