| Resolution (Bits) | 12 |
| Number of input channels | 11 |
| Sample rate (Max) (kSPS) | 66 |
| Interface type | SPI |
| Architecture | SAR |
| Input type | Single-Ended |
| Multi-channel configuration | Multiplexed |
| Rating | Catalog |
| Reference mode | Ext |
| Input range (Max) (V) | 5.5 |
| Input range (Min) (V) | 0 |
| Operating temperature range (C) | -40 to 85 |
| Power consumption (Typ) (mW) | 5 |
| Analog voltage AVDD (Min) (V) | 4.5 |
| Analog voltage AVDD (Max) (V) | 5.5 |
| INL (Max) (+/-LSB) | 1 |
| Digital supply (Min) (V) | 4.5 |
| Digital supply (Max) (V) | 5.5 |
- 12-Bit-Resolution A/D Converter
- 10-us Conversion Time Over Operating Temperature
- 11 Analog Input Channels
- 3 Built-In Self-Test Modes
- Inherent Sample-and-Hold Function
- Linearity Error . . . ±1 LSB Max
- On-Chip System Clock
- End-of-Conversion Output
- Unipolar or Bipolar Output Operation (Signed Binary With Respect to 1/2 the Applied Voltage Reference)
- Programmable MSB or LSB First
- Programmable Power Down
- Programmable Output Data Length
- CMOS Technology
- Application Report Available
Microcontroller Based Data Acquisition Using the TLC2543 12-bit Serial-Out ADC (SLAA012)
The TLC2543C and TLC2543I are 12-bit, switched-capacitor, successive-approximation, analog-to-digital converters. Each device, with three control inputs [chip select (CS\), the input-output clock, and the address input (DATA INPUT)], is designed for communication with the serial port of a host processor or peripheral through a serial 3-state output. The device allows high-speed data transfers from the host.
In addition to the high-speed converter and versatile control capability, the device has an on-chip 14-channel multiplexer that can select any one of 11 inputs or any one of three internal self-test voltages. The sample-and-hold function is automatic. At the end of conversion, the end-of-conversion (EOC) output goes high to indicate that conversion is complete. The converter incorporated in the device features differential high-impedance reference inputs that facilitate ratiometric conversion, scaling, and isolation of analog circuitry from logic and supply noise. A switched-capacitor design allows low-error conversion over the full operating temperature range.
The TLC2543C is characterized for operation from TA = 0°C to 70°C. The TLC2543I is characterized for operation from TA = ?40°C to 85°C. The TLC2543M is characterized for operation from TA = ?55°C to 125°C.
