Overview
The ADC121S051CISDX/NOPB-NS is a low-power, single-channel 12-bit analog-to-digital converter (ADC) produced by National Semiconductor, now part of Texas Instruments. This converter is designed with a high-speed serial interface and operates over a sample rate range of 200 ksps to 500 ksps. It is based on a successive-approximation register architecture with an internal track-and-hold circuit, making it suitable for various applications requiring precise and efficient analog-to-digital conversion.
Key Specifications
| Parameter | Conditions | Typical Units |
|---|---|---|
| Resolution | No Missing Codes | 12 Bits |
| Integral Non-Linearity (INL) | VA = +2.7V to +3.6V | +0.45 LSB (max), -0.40 LSB (min) |
| Differential Non-Linearity (DNL) | VA = +2.7V to +3.6V | +0.5 LSB (max), -0.25 LSB (min) |
| Signal-to-Noise Ratio (SNR) | fSAMPLE = 200 ksps to 500 ksps | 72.0 dB (typ) |
| Power Consumption | +3.6V Supply | 1.7 mW (typ) |
| Power Consumption | +5.25V Supply | 8.7 mW (typ) |
| Power-Down Consumption | +5.25V Supply | 2.6 µW (typ) |
| Supply Voltage Range | +2.7V to +5.25V | |
| Package | 6-lead WSON and SOT-23 |
Key Features
- Low-power operation with a single supply voltage range of +2.7V to +5.25V.
- High-speed serial interface compatible with SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces.
- Variable power management with a power-down feature reducing power consumption to as low as 2.6 µW.
- Available in 6-lead WSON and SOT-23 packages.
- Output serial data is straight binary.
Applications
- Portable Systems: Ideal for battery-powered devices due to its low power consumption.
- Remote Data Acquisition: Suitable for remote sensing and data collection applications.
- Instrumentation and Control Systems: Used in various industrial and medical instruments for precise analog-to-digital conversion.
Q & A
- What is the resolution of the ADC121S051CISDX/NOPB-NS? The resolution is 12 bits with no missing codes.
- What is the sample rate range of the ADC121S051CISDX/NOPB-NS? The sample rate range is from 200 ksps to 500 ksps.
- What are the typical power consumption values for the ADC121S051CISDX/NOPB-NS? At +3.6V supply, it is 1.7 mW, and at +5.25V supply, it is 8.7 mW.
- What is the power consumption in power-down mode? The power consumption in power-down mode is as low as 2.6 µW using a +5.25V supply.
- What are the compatible serial interfaces for the ADC121S051CISDX/NOPB-NS? It is compatible with SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces.
- What are the available package types for the ADC121S051CISDX/NOPB-NS? It is available in 6-lead WSON and SOT-23 packages.
- What is the signal-to-noise ratio (SNR) of the ADC121S051CISDX/NOPB-NS? The SNR is typically 72.0 dB.
- What are some common applications of the ADC121S051CISDX/NOPB-NS? It is commonly used in portable systems, remote data acquisition, and instrumentation and control systems.
- What is the supply voltage range for the ADC121S051CISDX/NOPB-NS? The supply voltage range is from +2.7V to +5.25V.
- Is the output serial data of the ADC121S051CISDX/NOPB-NS in binary format? Yes, the output serial data is straight binary.
