Overview
The ADC122S021CIMMX/NOPB from Texas Instruments is a low-power, two-channel CMOS 12-bit analog-to-digital converter (ADC) designed for high-precision data conversion. Introduced on March 1, 2005, this component is part of the data converters family and is known for its versatility and robust features. It operates with a high-speed serial interface and is fully specified over a sample rate range of 50 ksps to 200 ksps. The ADC is based on a successive-approximation register architecture with an internal track-and-hold circuit, making it suitable for various industrial and building automation applications.
Key Specifications
| Description | Specification |
|---|---|
| Number of Channels | 2 |
| Resolution | 12-bit |
| Sample Rate | 50 ksps to 200 ksps |
| Differential Non-Linearity (DNL) | +0.4 / −0.2 LSB (typ) |
| Integral Non-Linearity (INL) | ± 0.35 LSB (typ) |
| Signal-to-Noise Ratio (SNR) | 72.0 dB (typ) |
| Power Consumption (3V supply) | 2.2 mW (typ) |
| Power Consumption (5V supply) | 7.9 mW (typ) |
| Power-Down Consumption (3V supply) | 0.14 µW |
| Power-Down Consumption (5V supply) | 0.32 µW |
| Supply Voltage Range | +2.7V to +5.25V |
| Operating Temperature Range | −40°C to +85°C |
| Package Type | 8-lead VSSOP |
Key Features
- Dual-Channel Capability: The ADC can be configured to accept one or two input signals at inputs IN1 and IN2, enhancing its versatility in various applications.
- High-Speed Serial Interface: Compatible with several standards such as SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces.
- Low Power Consumption: Normal power consumption is 2.2 mW using a +3V supply and 7.9 mW using a +5V supply. The power-down feature reduces consumption to 0.14 µW and 0.32 µW respectively.
- Wide Supply Voltage Range: Operates with a single supply that can range from +2.7V to +5.25V.
- Industrial Temperature Range: Ensures operation over the industrial temperature range of −40°C to +85°C.
Applications
The ADC122S021CIMMX/NOPB is suitable for a wide array of applications, including:
- Industrial Automation: High-precision data conversion is crucial in industrial settings, and this ADC meets those requirements.
- Building Automation: Used in various building automation systems where accurate and efficient data conversion is necessary.
- Embedded Systems: Its low power consumption and compact package make it ideal for embedded systems requiring precise analog-to-digital conversion.
Q & A
- What is the resolution of the ADC122S021CIMMX/NOPB?
The resolution of the ADC122S021CIMMX/NOPB is 12-bit.
- How many channels does the ADC122S021CIMMX/NOPB have?
The ADC122S021CIMMX/NOPB has two channels.
- What is the sample rate range of the ADC122S021CIMMX/NOPB?
The sample rate range is from 50 ksps to 200 ksps.
- What is the typical power consumption of the ADC122S021CIMMX/NOPB using a +3V supply?
The typical power consumption is 2.2 mW using a +3V supply.
- What is the operating temperature range of the ADC122S021CIMMX/NOPB?
The operating temperature range is from −40°C to +85°C.
- What package type is the ADC122S021CIMMX/NOPB available in?
The ADC122S021CIMMX/NOPB is available in an 8-lead VSSOP package.
- Is the ADC122S021CIMMX/NOPB compatible with any specific serial interfaces?
Yes, it is compatible with SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces.
- What is the power-down consumption of the ADC122S021CIMMX/NOPB using a +5V supply?
The power-down consumption is 0.32 µW using a +5V supply.
- Does the ADC122S021CIMMX/NOPB comply with any industry standards or regulations?
Yes, it complies with EU RoHS and other relevant industry standards.
- Can the ADC122S021CIMMX/NOPB be used in automotive applications?
No, the ADC122S021CIMMX/NOPB is not qualified for automotive applications.
