Overview
The TLC548CDR is an 8-bit analog-to-digital converter (ADC) integrated circuit produced by Texas Instruments. It is part of the TLC548 series, which includes devices designed for serial interface with microprocessors or peripherals. The TLC548CDR is built around a switched-capacitor successive-approximation ADC and features an on-chip system clock, sample-and-hold circuit, and control logic, making it a complete data acquisition system on a single chip.
This device is ideal for cost-effective, high-performance applications, including battery-operated portable instrumentation. It operates over a wide supply range of 3 V to 6 V and has low power consumption, making it suitable for a variety of environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 8-bit | |
| Conversion Time | 17 µs Max | µs |
| Total Access and Conversion Cycles Per Second | Up to 45,500 | cycles/s |
| Internal System Clock Frequency | Typically 4 MHz | MHz |
| Supply Voltage Range | 3 V to 6 V | V |
| Power Consumption | 15 mW Max | mW |
| Operating Temperature Range | 0°C to 70°C | °C |
| I/O CLOCK Input Frequency | Up to 2.048 MHz | MHz |
| Total Unadjusted Error | ±0.5 LSB Max | LSB |
Key Features
- On-chip software-controllable sample-and-hold function
- Differential reference input voltages for ratiometric conversion and scaling
- High-speed converter with a maximum total error of ±0.5 LSB
- CMOS technology for low power consumption
- Pinout and control signals compatible with TLC540, TLC545, and TLC1540 ADCs
- TTL-compatible 3-state data output for serial communication with microprocessors or minicomputers
- Internal system clock operates independently of serial input/output data timing
Applications
- Battery-operated portable instrumentation
- Cost-effective, high-performance data acquisition systems
- Microprocessor peripheral or standalone operation
- Applications requiring low power consumption and high conversion rates
- Industrial and medical devices where precise analog-to-digital conversion is necessary
Q & A
- What is the resolution of the TLC548CDR?
The TLC548CDR has an 8-bit resolution.
- What is the maximum conversion time of the TLC548CDR?
The maximum conversion time is 17 µs.
- How many conversion cycles per second can the TLC548CDR perform?
The TLC548CDR can perform up to 45,500 conversion cycles per second.
- What is the typical frequency of the internal system clock?
The internal system clock typically operates at 4 MHz.
- What is the supply voltage range for the TLC548CDR?
The supply voltage range is from 3 V to 6 V.
- What is the maximum power consumption of the TLC548CDR?
The maximum power consumption is 15 mW.
- What is the operating temperature range for the TLC548CDR?
The operating temperature range is from 0°C to 70°C.
- What is the maximum I/O CLOCK input frequency for the TLC548CDR?
The maximum I/O CLOCK input frequency is 2.048 MHz.
- What is the total unadjusted error of the TLC548CDR?
The total unadjusted error is ±0.5 LSB maximum.
- Is the TLC548CDR compatible with other ADC models?
