Overview
The TLC3548IDW is a high-performance, low-power, 14-bit resolution CMOS analog-to-digital converter (ADC) produced by Texas Instruments. This device is part of the TLC3544 and TLC3548 family, designed to operate from a single 5-V analog power supply and 3-V to 5-V digital supply. It features multiple analog inputs, pseudodifferential analog inputs, and versatile serial interfaces compatible with both SPI and DSP protocols. The TLC3548IDW is known for its low power consumption, high throughput, and advanced control capabilities, making it suitable for a variety of high-performance applications.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 14-bit |
| Maximum Throughput | 200 KSPS |
| Analog Input Range | 0-V to Reference Voltage |
| Number of Analog Inputs | 8 Channels |
| Serial Interface | SPI/DSP-Compatible with SCLK up to 25 MHz |
| Analog Supply Voltage | 5 V |
| Digital Supply Voltage | 3 V to 5 V |
| Power Consumption (Normal Operation) | 4 mA (Internal Reference: 1.8 mA) |
| Power Consumption (Autopower-Down) | 20 µA |
| Internal Reference | 4 V |
| Integral Nonlinearity (INL) | ±1 LSB Max |
| Differential Nonlinearity (DNL) | ±1 LSB Max |
| Signal-to-Noise and Distortion Ratio (SINAD) | 80.8 dB |
| Total Harmonic Distortion (THD) | -95 dB |
| Operating Temperature Range | -40°C to 85°C |
| Package Type | 24-Pin SOIC (DW) |
Key Features
- High-speed ADC with maximum throughput of 200 KSPS
- Pseudodifferential analog inputs with 8 channels for the TLC3548
- SPI/DSP-compatible serial interfaces with SCLK up to 25 MHz
- Single 5-V analog supply and 3-V to 5-V digital supply
- Low power consumption: 4 mA in normal operation and 20 µA in autopower-down
- Built-in 4-V reference, conversion clock, and 8x FIFO
- Hardware-controlled and programmable sampling period
- Programmable autochannel sweep and repeat
- Hardware default configuration
Applications
The TLC3548IDW is suitable for various high-performance applications, including:
- High-speed data acquisition systems
- Medical imaging and diagnostic equipment
- Aerospace and defense systems
- Industrial automation and control systems
- Automotive systems requiring high precision and low power consumption
Q & A
- What is the resolution of the TLC3548IDW ADC?
The TLC3548IDW has a 14-bit resolution. - What is the maximum throughput of the TLC3548IDW?
The maximum throughput is 200 KSPS. - How many analog input channels does the TLC3548IDW have?
The TLC3548IDW has 8 analog input channels. - What types of serial interfaces are supported by the TLC3548IDW?
The TLC3548IDW supports both SPI and DSP-compatible serial interfaces. - What is the power consumption of the TLC3548IDW in normal operation?
The power consumption is 4 mA in normal operation, with the internal reference consuming 1.8 mA. - What is the power consumption of the TLC3548IDW in autopower-down mode?
The power consumption is 20 µA in autopower-down mode. - Does the TLC3548IDW have an internal reference voltage?
Yes, the TLC3548IDW has a built-in 4-V internal reference voltage. - What is the operating temperature range of the TLC3548IDW?
The operating temperature range is -40°C to 85°C. - What package type is the TLC3548IDW available in?
The TLC3548IDW is available in a 24-pin SOIC (DW) package. - Can the TLC3548IDW use an external clock for conversions?
Yes, the TLC3548IDW can use an external SCLK as the conversion clock for maximum flexibility.
