Overview
The TLV2548IDW is a high-performance, 12-bit low-power analog-to-digital converter (ADC) produced by Texas Instruments. This device operates from a single 2.7-V to 5.5-V power supply and features a maximum throughput of 200 kSPS. It is designed with a CMOS architecture and includes built-in reference, conversion clock, and an 8× FIFO. The TLV2548IDW is packaged in a 20-pin SOIC (DW) package and is characterized for operation over a temperature range of -40°C to 85°C for the 'I' grade and 0°C to 70°C for the 'C' grade.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12-bit |
| Maximum Throughput | 200 kSPS |
| Supply Voltage Range | 2.7 Vdc to 5.5 Vdc |
| Analog Input Range | 0 V to Supply Voltage |
| Bandwidth | 500 kHz |
| Differential/Integral Nonlinearity Error | ±1 LSB |
| Signal-to-Noise and Distortion Ratio (SNDR) | 70 dB, fi = 12 kHz |
| Spurious Free Dynamic Range (SFDR) | 75 dB, fi = 12 kHz |
| Serial Interface | SPI (CPOL = 0, CPHA = 0)/DSP-Compatible, SCLK up to 20 MHz |
| Operating Current | 1.0 mA at 3.3 V, 1.1 mA at 5.5 V (with external reference) |
| Power Down Modes | Software/Hardware Power-Down Mode (1 µA Max), Autopower-Down Mode (1 µA) |
| Package | 20-pin SOIC (DW) |
| Operating Temperature Range | -40°C to 85°C (I grade), 0°C to 70°C (C grade) |
Key Features
- Built-in reference, conversion clock, and 8× FIFO
- Differential/Integral Nonlinearity Error: ±1 LSB
- Signal-to-Noise and Distortion Ratio: 70 dB, fi = 12 kHz
- Spurious Free Dynamic Range: 75 dB, fi = 12 kHz
- SPI (CPOL = 0, CPHA = 0)/DSP-Compatible serial interfaces with SCLK up to 20 MHz
- Hardware controlled and programmable sampling period
- Low operating current and power-saving features including software/hardware/autopower-down modes
- Programmable auto-channel sweep and on-chip analog multiplexer
- Optional external reference for maximum flexibility
Applications
The TLV2548IDW is suitable for a variety of applications requiring high-performance, low-power 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 accuracy and low power consumption
- Embedded systems and IoT devices
Q & A
- What is the resolution of the TLV2548IDW ADC?
The TLV2548IDW has a 12-bit resolution.
- What is the maximum throughput of the TLV2548IDW?
The maximum throughput is 200 kSPS.
- What is the supply voltage range for the TLV2548IDW?
The supply voltage range is from 2.7 Vdc to 5.5 Vdc.
- What is the analog input range of the TLV2548IDW?
The analog input range is from 0 V to the supply voltage.
- What serial interface does the TLV2548IDW support?
The TLV2548IDW supports SPI (CPOL = 0, CPHA = 0)/DSP-Compatible serial interfaces with SCLK up to 20 MHz.
- What are the power-down modes available for the TLV2548IDW?
The device supports software/hardware power-down mode (1 µA Max) and autopower-down mode (1 µA).
- What is the operating current of the TLV2548IDW?
The operating current is 1.0 mA at 3.3 V and 1.1 mA at 5.5 V (with external reference).
- What package type is the TLV2548IDW available in?
The TLV2548IDW is available in a 20-pin SOIC (DW) package.
- What is the operating temperature range for the TLV2548IDW?
The operating temperature range is -40°C to 85°C for the 'I' grade and 0°C to 70°C for the 'C' grade.
- Does the TLV2548IDW support external reference voltage?
Yes, the TLV2548IDW supports an optional external reference voltage for maximum flexibility.
