개요
The ADS1115 is a precision, low-power, 16-bit analog-to-digital converter (ADC) with an I²C-compatible interface. Designed by Texas Instruments, this device offers high-resolution measurements and is ideal for applications requiring accurate analog signal conversion. It features an onboard programmable gain amplifier (PGA), allowing for precise signal conditioning and measurement of small signals. The compact design and low power consumption make it suitable for both portable and embedded systems.
This ADC supports four single-ended or two differential inputs, providing flexibility in signal acquisition. With a data rate of up to 860 samples per second (SPS), it balances speed and resolution for a wide range of applications. The internal oscillator eliminates the need for external components, simplifying system design. Additionally, the device includes a comparator function, which can be used for simple threshold detection without the need for a separate microcontroller.
베스트셀러 제품
Technical Parameters
- Resolution: 16 bits
- Input Channels: 4 single-ended or 2 differential
- Interface: I²C-compatible
- Data Rate: Up to 860 samples per second (SPS)
- Programmable Gain Amplifier (PGA): Up to ±6.144V input range
- Operating Voltage: 2.0V to 5.5V
- Internal Oscillator: Yes
- Comparator Function: Yes
- Low Current Consumption: 150 µA (typical)
- Shutdown Mode: Reduces current consumption to 0.5 µA
- Package Options: MSOP-10
- Temperature Range: -40°C to +125°C
Why This Product Offers Advantages Compared to Typical Alternatives
High Resolution and Accuracy
The 16-bit resolution of this ADC provides significantly more precise measurements than many 10-bit or 12-bit alternatives. This higher resolution is especially beneficial in applications where small voltage changes need to be detected accurately, such as in sensor interfacing or instrumentation.
Integrated Programmable Gain Amplifier
The built-in PGA allows the device to measure a wide range of input voltages, from ±6.144V down to ±0.256V. This flexibility eliminates the need for external amplification circuits, reducing component count and simplifying design. It also enables the ADC to interface directly with low-level signals from sensors without additional hardware.
🌟 주요 제품
Low Power Consumption
With a typical current consumption of only 150 µA during operation and 0.5 µA in shutdown mode, this ADC is ideal for battery-powered and energy-sensitive applications. Many competing ADCs consume significantly more power, making this device a better choice for portable systems.
Flexible Input Configuration
The ability to configure the input as four single-ended channels or two differential channels provides design flexibility. This feature allows engineers to use the same device in multiple configurations, reducing the need for different ADCs across various projects.
📩 문의하기
Internal Oscillator and Comparator
The inclusion of an internal oscillator removes the need for an external clock source, simplifying the design and reducing board space. The onboard comparator function enables threshold-based triggering, which can be used for event detection without continuous microcontroller intervention.
Compact Package and Wide Operating Range
The MSOP-10 package is compact, making it suitable for space-constrained designs. Additionally, the wide operating temperature range of -40°C to +125°C ensures reliable performance in industrial and automotive environments.
일반적인 애플리케이션
- 휴대용 계측기
- Battery monitoring
- Temperature sensing
- Industrial process control
- Medical instrumentation
- 데이터 수집 시스템
- Environmental monitoring
- Embedded systems
Texas Instruments Brand Information
Texas Instruments is a global semiconductor company known for its innovation and high-quality analog and embedded processing products. With decades of experience in the electronics industry, Texas Instruments provides reliable and efficient solutions for a wide range of applications. Their products are widely used in industrial, automotive, consumer, and communication markets. The company is committed to delivering performance, quality, and support to engineers and designers worldwide.
자주 묻는 질문
1. What is the maximum input voltage range supported?
The device supports a maximum input voltage range of ±6.144V when configured with the appropriate PGA setting.
2. Can this ADC be used with a 3.3V microcontroller?
Yes, it operates over a voltage range of 2.0V to 5.5V, making it compatible with 3.3V systems.
3. How many channels can be read simultaneously?
It supports four single-ended or two differential channels, but only one channel can be converted at a time.
4. Does it require an external clock?
No, it includes an internal oscillator, so no external clock is needed.
5. What is the typical current consumption during operation?
The typical current consumption is 150 µA during active operation and 0.5 µA in shutdown mode.