Overview
The TLC3548IPW is a high-performance, low-power, 14-bit resolution analog-to-digital converter (ADC) manufactured 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 a 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 systems. The TLC3548IPW is known for its low power consumption and advanced power-saving features, making it suitable for a wide range of applications requiring high-speed and precise analog-to-digital conversion.
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, SCLK up to 25 MHz |
| Analog Power Supply | Single 5-V |
| Digital Power Supply | 3-V to 5-V |
| Operating Temperature Range | -40°C to 85°C |
| Package Type | TSSOP (PW), 24 Pins |
| Power Consumption (Normal Operation) | 4 mA (Internal Reference: 1.8 mA) |
| Power Consumption (Autopower-Down) | 20 µA |
| Internal Reference | 4-V |
| INL | ±1 LSB Max |
| DNL | ±1 LSB Max |
| SINAD | 80.8 dB |
| THD | 95 dB |
Key Features
- 14-bit resolution with high accuracy (INL: ±1 LSB Max, DNL: ±1 LSB Max)
- Maximum throughput of 200 KSPS
- Multiple analog inputs: 8 channels for TLC3548
- Pseudodifferential analog inputs
- 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 for 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 TLC3548IPW is suitable for various high-performance applications requiring precise and fast analog-to-digital conversion. These include:
- Industrial automation and control systems
- Medical devices and diagnostic equipment
- Aerospace and defense systems
- Automotive systems, especially those requiring high-speed data acquisition
- Test and measurement instruments
- Communication systems and data acquisition systems
Q & A
- What is the resolution of the TLC3548IPW?
The TLC3548IPW has a 14-bit resolution. - What is the maximum throughput of the TLC3548IPW?
The maximum throughput is 200 KSPS. - How many analog input channels does the TLC3548IPW have?
The TLC3548IPW has 8 analog input channels. - What are the power supply requirements for the TLC3548IPW?
The device operates from a single 5-V analog power supply and a 3-V to 5-V digital supply. - What are the operating temperature ranges for the TLC3548IPW?
The operating temperature range is -40°C to 85°C. - What types of serial interfaces does the TLC3548IPW support?
The TLC3548IPW supports SPI and DSP-compatible serial interfaces. - How does the power consumption of the TLC3548IPW compare in normal operation versus autopower-down?
In normal operation, the power consumption is 4 mA, and in autopower-down, it is 20 µA. - Does the TLC3548IPW have an internal reference voltage?
Yes, the TLC3548IPW has a built-in 4-V internal reference voltage. - Can the sampling period be controlled on the TLC3548IPW?
Yes, the sampling period can be hardware-controlled and programmable. - What is the significance of the frame sync signal (FS) in the TLC3548IPW?
The frame sync signal (FS) indicates the start of a serial data frame being transferred and is used to allow the host DSP to access individual converters when multiple converters are connected.
