Overview
The TLV1544IPWR is a low-voltage 10-bit analog-to-digital converter (ADC) produced by Texas Instruments. This device is part of the TLV1544 series and is characterized by its high-speed conversion, versatile control capabilities, and low power consumption. It is designed to operate with a wide range of supply voltages from 2.7 V to 5.5 V, making it suitable for various applications requiring precision and efficiency.
Key Specifications
| Parameter | Description |
|---|---|
| Resolution | 10-bit |
| Conversion Time | Fast: 7 µs (typ), Slow: 15 µs (typ) |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Analog Input Channels | 4 channels (TLV1544), 8 channels (TLV1548) |
| Temperature Range | -40°C to 85°C (TLV1544I), 0°C to 70°C (TLV1544C) |
| Power Consumption | Fast mode: 0.6 mA (typ), Slow mode: 0.4 mA (typ), Power-down: 1 µA (typ) |
| Interface Compatibility | SPI, QSPI, TMS320 DSP compatible |
| Package Type | 16-pin TSSOP (PW) |
Key Features
- High-speed 10-bit analog-to-digital conversion with successive-approximation (SAR) architecture.
- Programmable power-down mode and conversion rate to optimize power consumption.
- Wide range single-supply operation from 2.7 V to 5.5 V.
- Built-in analog multiplexer with 4 or 8 analog input channels and three internal self-test voltages.
- Compatible with SPI, QSPI, and TMS320 DSP serial interfaces.
- Inherent sample-and-hold function and end-of-conversion (EOC) flag.
- Asynchronous start of conversion for extended sampling cycles.
- Low power consumption with a power-down state of 1 µA.
Applications
- Data acquisition systems requiring high precision and low power consumption.
- Industrial control systems where multiple analog inputs need to be monitored.
- Medical devices that require accurate analog-to-digital conversion.
- Aerospace and defense applications due to its military temperature range option (TLV1548M).
- Automotive systems where robustness and low power are critical.
Q & A
- What is the resolution of the TLV1544IPWR ADC?
The TLV1544IPWR has a 10-bit resolution.
- What is the typical conversion time for the TLV1544IPWR?
The typical conversion time is 7 µs for fast mode and 15 µs for slow mode.
- What is the supply voltage range for the TLV1544IPWR?
The supply voltage range is from 2.7 V to 5.5 V.
- How many analog input channels does the TLV1544IPWR have?
The TLV1544IPWR has 4 analog input channels.
- What are the temperature ranges for the different versions of the TLV1544?
The TLV1544C operates from 0°C to 70°C, the TLV1544I from -40°C to 85°C, and the TLV1548M from -55°C to 125°C.
- What interfaces is the TLV1544IPWR compatible with?
The TLV1544IPWR is compatible with SPI, QSPI, and TMS320 DSP serial interfaces.
- How does the power-down mode work on the TLV1544IPWR?
The device can be put into a power-down state by writing 8h to DATA IN, reducing power consumption to 1 µA.
- What is the purpose of the built-in analog multiplexer?
The built-in analog multiplexer allows selection of any one of the four (or eight for TLV1548) analog inputs or any one of the three internal self-test voltages.
- What is the significance of the EOC (End-of-Conversion) flag?
The EOC flag goes high to indicate that the conversion is complete.
- Can the TLV1544IPWR be used in extended sampling cycles?
