Overview
The ADC121S021CIMFX is a low-power, single-channel CMOS 12-bit analog-to-digital converter (ADC) developed by Texas Instruments. This device features a high-speed serial interface and is fully specified over a sample rate range of 50 ksps to 200 ksps. It is based on a successive-approximation register architecture with an internal track-and-hold circuit. The ADC121S021 operates with a single power supply that can range from 2.7 V to 5.25 V, making it versatile for various applications. It is packaged in 6-pin WSON and SOT-23 packages and operates over the industrial temperature range of -40°C to 85°C.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Sample Rate Range | 50 ksps to 200 ksps |
| Supply Voltage Range | 2.7 V to 5.25 V |
| Power Consumption (3.6 V) | 1.5 mW (Typical) |
| Power Consumption (5.25 V) | 7.9 mW (Typical) |
| Power-Down Consumption (5.25 V) | 2.6 µW (Typical) |
| DNL (Typical) | 0.45 and 0.25 LSB |
| INL (Typical) | 0.45 and 0.4 LSB |
| SNR (Typical) | 72.3 dB |
| Operating Temperature Range | -40°C to 85°C |
| Package Types | 6-pin WSON and SOT-23 |
Key Features
- Low power consumption with variable power management
- Single power supply with a range of 2.7 V to 5.25 V
- High-speed serial interface compatible with SPI, QSPI, MICROWIRE, and many common DSP serial interfaces
- Internal track-and-hold circuit
- Output serial data in straight binary format
- Power-down feature to reduce power consumption to as low as 2.6 µW
Applications
The ADC121S021CIMFX is suitable for a variety of applications that require low power consumption and high precision analog-to-digital conversion. These include:
- Industrial control systems
- Medical devices
- Aerospace and defense systems
- Automotive systems
- Portable and battery-powered devices
Q & A
- What is the resolution of the ADC121S021CIMFX?
The ADC121S021CIMFX has a resolution of 12 bits.
- What is the sample rate range of the ADC121S021CIMFX?
The sample rate range is from 50 ksps to 200 ksps.
- What is the supply voltage range for the ADC121S021CIMFX?
The supply voltage range is from 2.7 V to 5.25 V.
- How much power does the ADC121S021CIMFX consume at 3.6 V and 5.25 V?
At 3.6 V, it consumes 1.5 mW, and at 5.25 V, it consumes 7.9 mW.
- What is the power consumption in power-down mode?
In power-down mode, the power consumption is as low as 2.6 µW using a 5.25-V supply.
- What are the typical DNL and INL values for the ADC121S021CIMFX?
The typical DNL values are 0.45 and 0.25 LSB, and the typical INL values are 0.45 and 0.4 LSB.
- What is the SNR of the ADC121S021CIMFX?
The SNR is typically 72.3 dB.
- What are the package types available for the ADC121S021CIMFX?
The device is available in 6-pin WSON and SOT-23 packages.
- What is the operating temperature range of the ADC121S021CIMFX?
The operating temperature range is from -40°C to 85°C.
- Is the ADC121S021CIMFX compatible with common serial interfaces?
