Overview
The ADC122S021CIMM/NOPB is a low-power, two-channel CMOS 12-bit analog-to-digital converter (ADC) manufactured by Texas Instruments. This device is designed for precision data acquisition and features a high-speed serial interface. It operates over a wide supply voltage range of 2.7V to 5.25V and is packaged in an 8-lead VSSOP (DGK) package, making it suitable for compact and reliable designs in various industrial environments. The ADC is fully specified over a sample rate range of 50 ksps to 200 ksps, ensuring consistent performance across different sampling rates.
Key Specifications
| Parameter | Description |
|---|---|
| Resolution | 12 bits |
| Sample Rate | 50 ksps to 200 ksps |
| Supply Voltage | 2.7V to 5.25V |
| Power Consumption | 2.2 mW (typ) at 3V, 7.9 mW (typ) at 5V |
| Power-Down Consumption | 0.14 µW at 3V, 0.32 µW at 5V |
| DNL (Typ) | +0.4 / −0.2 LSB |
| INL (Typ) | ± 0.35 LSB |
| SNR (Typ) | 72.0 dB |
| Operating Temperature Range | −40°C to +85°C |
| Package Type | VSSOP-8 (DGK) |
Key Features
- Fast conversion rate and low power consumption.
- Digital calibration for improved accuracy.
- SPI-compatible interface for easy integration with microcontrollers or processors.
- Internal reference voltage for stable operation.
- Wide operating temperature range (−40°C to +85°C).
- Two input channels (IN1 and IN2) for simultaneous analog input.
- Variable power management with power-down feature to reduce power consumption significantly.
Applications
The ADC122S021CIMM/NOPB is commonly used in various applications such as:
- Data acquisition systems.
- Industrial automation and instrumentation.
- Medical devices.
- Communication systems.
- Portable and battery-powered devices due to its low power consumption and compact size.
Q & A
- What is the resolution of the ADC122S021CIMM/NOPB?
The ADC122S021CIMM/NOPB has a 12-bit resolution.
- What is the sample rate range of the ADC122S021CIMM/NOPB?
The sample rate range is from 50 ksps to 200 ksps.
- What is the supply voltage range for the ADC122S021CIMM/NOPB?
The supply voltage range is from 2.7V to 5.25V.
- How many input channels does the ADC122S021CIMM/NOPB have?
The ADC has two input channels (IN1 and IN2)).
- What is the typical power consumption of the ADC122S021CIMM/NOPB?
The typical power consumption is 2.2 mW at 3V and 7.9 mW at 5V).
- What is the operating temperature range of the ADC122S021CIMM/NOPB?
The operating temperature range is from −40°C to +85°C).
- What type of interface does the ADC122S021CIMM/NOPB use?
The ADC uses an SPI-compatible serial interface).
- Does the ADC122S021CIMM/NOPB have an internal reference voltage?
Yes, it has an internal reference voltage for stable operation).
- What is the package type of the ADC122S021CIMM/NOPB?
The package type is VSSOP-8 (DGK)).
- What are some common applications of the ADC122S021CIMM/NOPB?
Common applications include data acquisition systems, industrial automation, instrumentation, medical devices, and communication systems).
