Overview
The TLV2556IDWR is a 12-bit, low-power, successive approximation register (SAR) analog-to-digital converter (ADC) produced by Texas Instruments. This device is characterized by its high accuracy, low power consumption, and versatile features, making it suitable for a variety of applications. The TLV2556IDWR features an internal reference, a switched-capacitor design, and a serial interface, allowing for efficient and reliable analog-to-digital conversion. It operates over a wide temperature range from -40°C to +85°C, ensuring robust performance in diverse environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12-bit | |
| Conversion Rate | 200 kSPS | |
| Number of Channels | 11 | |
| Supply Voltage | 2.7 V to 5.5 V | V |
| Operating Temperature Range | -40°C to +85°C | °C |
| Package Type | SOIC-20 | |
| Internal Reference Voltage | 2.048 V or 4.096 V (programmable) | V |
| Serial Interface | SPI-compatible, up to 15 MHz | |
| Conversion Time | Approx. 5.54 μs (VCC = 2.7 V to 3.6 V) | μs |
Key Features
- Internal Reference: The device includes an internal reference voltage that can be programmed to 2.048 V or 4.096 V, facilitating ratiometric conversion and isolation of analog circuitry from logic and supply noise.
- Switched-Capacitor Design: This design allows for low error conversion over the full operating temperature range.
- Programmable Conversion Status Output: The INT/EOC pin can be programmed to indicate when the conversion is complete, either as an interrupt (INT) or end-of-conversion (EOC) signal.
- Unipolar or Bipolar Output Operation: The device supports both unipolar and bipolar output modes.
- Programmable Most Significant Bit (MSB) or Least Significant Bit (LSB) First: The output data can be configured to be transmitted either MSB first or LSB first.
- SPI-Compatible Serial Interface: The device features a serial interface compatible with SPI protocols, supporting clock frequencies up to 15 MHz.
- Low Power Consumption: The TLV2556IDWR is designed for low power operation, making it suitable for battery-powered and portable applications.
Applications
- Industrial Process Control: The device is suitable for monitoring and controlling various industrial processes due to its high accuracy and reliability.
- Portable Data Logging: Its low power consumption makes it ideal for portable data logging devices.
- Battery-Powered Instruments: The TLV2556IDWR is well-suited for use in battery-powered instruments where power efficiency is crucial.
- Automotive Systems: The device can be used in automotive applications due to its robust performance over a wide temperature range.
Q & A
- What is the resolution of the TLV2556IDWR ADC?
The TLV2556IDWR has a 12-bit resolution.
- What is the conversion rate of the TLV2556IDWR?
The conversion rate is 200 kSPS (kilosamples per second).
- How many analog input channels does the TLV2556IDWR have?
The device has 11 analog input channels.
- What is the operating temperature range of the TLV2556IDWR?
The device operates from -40°C to +85°C.
- What type of package is the TLV2556IDWR available in?
The device is available in a SOIC-20 package.
- Does the TLV2556IDWR have an internal reference voltage?
Yes, the device includes an internal reference voltage that can be programmed to 2.048 V or 4.096 V.
- What type of serial interface does the TLV2556IDWR support?
The device supports an SPI-compatible serial interface with clock frequencies up to 15 MHz.
- Is the TLV2556IDWR suitable for low power applications?
Yes, the device is designed for low power consumption, making it suitable for battery-powered and portable applications.
- Can the TLV2556IDWR be used in automotive systems?
Yes, the device is robust and can operate over a wide temperature range, making it suitable for automotive applications.
- What are some common applications of the TLV2556IDWR?
Common applications include industrial process control, portable data logging, battery-powered instruments, and automotive systems.
