Overview
The TLC2543CN is a 12-bit analog-to-digital converter (ADC) produced by Texas Instruments. This device is part of the TLC2543 series, which includes the TLC2543C, TLC2543I, and TLC2543M, each characterized for different operating temperature ranges. The TLC2543CN is specifically designed for operation from –55°C to 125°C, making it suitable for a wide range of applications requiring high reliability and precision in harsh environments.
The TLC2543CN features a switched-capacitor, successive-approximation architecture and includes a 14-channel multiplexer that can select any one of 11 analog inputs or three internal self-test voltages. It also incorporates an inherent sample-and-hold function and an on-chip system clock, enabling high-speed data transfers through a serial 3-state output.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 12 bits | - | ||
| Conversion Time | 10 µs | - | ||
| Analog Input Channels | 11 | - | ||
| Operating Temperature Range | -55°C | - | 125°C | °C |
| Supply Voltage | 4.5 V | 5 V | 5.5 V | V |
| High-Level Output Voltage | 2.4 V | - | VCC - 0.1 V | V |
| Low-Level Output Voltage | 0.4 V | - | 0.1 V | V |
| Linearity Error | ±1 LSB | - | ||
| Total Unadjusted Error | ±1.75 LSB | - | ||
Key Features
- 12-bit resolution with a conversion time of 10 µs over the operating temperature range.
- 11 analog input channels and three built-in self-test modes.
- Inherent sample-and-hold function and on-chip system clock.
- End-of-conversion output and programmable power down.
- Programmable MSB or LSB first and programmable output data length.
- CMOS technology with differential high-impedance reference inputs.
- Unipolar or bipolar output operation (signed binary with respect to 1/2 the applied voltage reference).
- Serial 3-state output for high-speed data transfers.
Applications
The TLC2543CN is versatile and can be used in various applications, including:
- Industrial control systems requiring high precision and reliability in harsh environments.
- Medical devices that need accurate analog-to-digital conversion.
- Aerospace and defense systems where the operating temperature range is critical.
- Automotive systems that require robust and reliable ADCs.
- Data acquisition systems in remote or distributed sensing applications.
Q & A
- What is the resolution of the TLC2543CN?
The TLC2543CN has a 12-bit resolution.
- What is the conversion time of the TLC2543CN?
The conversion time is 10 µs over the operating temperature range.
- How many analog input channels does the TLC2543CN have?
The device has 11 analog input channels.
- What is the operating temperature range of the TLC2543CN?
The operating temperature range is from –55°C to 125°C.
- Does the TLC2543CN have built-in self-test modes?
Yes, it has three built-in self-test modes.
- What type of output operation does the TLC2543CN support?
It supports unipolar or bipolar output operation (signed binary with respect to 1/2 the applied voltage reference).
- Can the TLC2543CN be powered down programmatically?
Yes, it has programmable power down capability.
- What is the significance of the end-of-conversion output in the TLC2543CN?
The end-of-conversion output goes high to indicate that the conversion is complete.
- How does the TLC2543CN handle serial data transfers?
It uses a serial 3-state output for high-speed data transfers.
- What technology is used in the TLC2543CN?
The device uses CMOS technology.
