Overview
The TLC2543IDBRG4HE is a 12-bit analog-to-digital converter (ADC) produced by Texas Instruments. This device is part of the TLC2543 series, which includes various temperature grades and package options. The TLC2543IDBRG4HE is specifically characterized for operation from –40°C to 85°C, making it suitable for a wide range of industrial and commercial applications. It features a serial interface for communication with host processors or peripherals, enabling high-speed data transfers.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Operating Temperature Range | –40 | 85 | °C | |
| Resolution | 12 | bits | ||
| Number of Analog Inputs | 11 | |||
| Reference Input Voltage Range | 4.5 | 5.5 | V | |
| Supply Current (VCC = 5 V) | 2.5 | mA | ||
| Power-Down Current (VCC = 5 V) | 25 | µA | ||
| Conversion Time (f(I/O CLOCK) = 4.1 MHz) | 2048 / f(I/O CLOCK) | clock cycles | ||
| Analog Input Capacitance | 30 | 60 | pF | |
| High-Level Output Voltage (VCC = 4.5 V, IOH = –1.6 mA) | 2.4 | V | ||
| Low-Level Output Voltage (VCC = 4.5 V, IOL = 1.6 mA) | 0.4 | V |
Key Features
- High-Speed Conversion: The TLC2543IDBRG4HE supports high-speed data transfers with a conversion time of 2048 clock cycles at an I/O clock frequency of 4.1 MHz.
- Serial Interface: The device features a serial 3-state output for communication with the host processor or peripheral.
- 14-Channel Multiplexer: It includes an on-chip 14-channel multiplexer that can select any one of 11 analog inputs or any one of three internal self-test voltages.
- Sample-and-Hold Function: The sample-and-hold function is automatic, and the end-of-conversion (EOC) output indicates when the conversion is complete.
- Differential High-Impedance Reference Inputs: These inputs facilitate ratiometric conversion, scaling, 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.
Applications
- Industrial Automation: Suitable for various industrial automation applications due to its robust temperature range and high-speed conversion capabilities.
- Medical Devices: Can be used in medical devices that require precise analog-to-digital conversion.
- Aerospace and Defense: The wide operating temperature range makes it suitable for aerospace and defense applications.
- Automotive Systems: Applicable in automotive systems that require reliable and high-speed analog-to-digital conversion.
- Test and Measurement Equipment: Ideal for use in test and measurement equipment where precision and speed are critical.
Q & A
- What is the resolution of the TLC2543IDBRG4HE?
The TLC2543IDBRG4HE has a resolution of 12 bits. - What is the operating temperature range of the TLC2543IDBRG4HE?
The operating temperature range is from –40°C to 85°C. - How many analog inputs does the TLC2543IDBRG4HE have?
The device has 11 analog inputs. - What is the typical supply current of the TLC2543IDBRG4HE at VCC = 5 V?
The typical supply current is 2.5 mA. - What is the power-down current of the TLC2543IDBRG4HE?
The power-down current is 25 µA. - How long does the conversion take at an I/O clock frequency of 4.1 MHz?
The conversion time is 2048 clock cycles. - What type of design does the TLC2543IDBRG4HE use for low-error conversion?
The device uses a switched-capacitor design. - What is the purpose of the differential high-impedance reference inputs?
The differential high-impedance reference inputs facilitate ratiometric conversion, scaling, and isolation of analog circuitry from logic and supply noise. - How does the sample-and-hold function work?
The sample-and-hold function is automatic, and the end-of-conversion (EOC) output indicates when the conversion is complete. - What is the significance of the 14-channel multiplexer in the TLC2543IDBRG4HE?
The 14-channel multiplexer can select any one of 11 analog inputs or any one of three internal self-test voltages.
