Overview
The ADC121C021CIMK/NOPB is a low-power, 12-bit analog-to-digital converter (ADC) produced by Texas Instruments. This monolithic ADC operates from a single supply voltage ranging from +2.7V to +5.5V and features a successive approximation register architecture with an internal track-and-hold circuit. It is designed to handle input frequencies up to 11MHz and includes an I2C-compatible serial interface that supports standard, fast, and high-speed modes. The device is available in small packages, making it suitable for battery-operated equipment and applications requiring low power consumption and compact design.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 12 |
| Supply Voltage Range | +2.7V to +5.5V |
| Operating Temperature Range | -40°C to +105°C |
| Package Type | 6-Pin SOT-23-THN (DDC) |
| Number of Pins | 6 |
| Conversion Time | Up to 179.856 µs |
| Sample Rate | Up to 189 kSPS |
| Power Consumption (at +3V/+5V) | 0.26 mW / 0.78 mW |
| Automatic Power-Down Current | < 1 µW |
| I2C Interface Speed Modes | Standard (100 kHz), Fast (400 kHz), High Speed (3.4 MHz) |
Key Features
- I2C-Compatible 2-Wire Interface supporting standard, fast, and high-speed modes.
- Extended power supply range from +2.7V to +5.5V.
- Out-of-Range Alert Function with programmable upper and lower limit values.
- Automatic Power-Down Mode to reduce power consumption while not converting.
- Very small 6-pin SOT and 8-pin VSSOP packages.
- Up to nine pin-selectable chip addresses (VSSOP package only).
- AEC-Q100 Grade 2 qualified for automotive applications (ADC121C021Q).
Applications
The ADC121C021CIMK/NOPB is ideal for various applications requiring low power consumption and compact design. These include battery-operated equipment, industrial automation, medical devices, and automotive systems. Its small package size and low power consumption make it particularly suitable for portable and embedded systems.
Q & A
- What is the resolution of the ADC121C021CIMK/NOPB?
The ADC121C021CIMK/NOPB is a 12-bit analog-to-digital converter. - What is the operating temperature range of the ADC121C021CIMK/NOPB?
The operating temperature range is from -40°C to +105°C. - What are the available package types for the ADC121C021CIMK/NOPB?
The device is available in 6-pin SOT-23-THN (DDC) and 8-pin VSSOP packages. - What is the power consumption of the ADC121C021CIMK/NOPB at +3V and +5V supply voltages?
The power consumption is 0.26 mW at +3V and 0.78 mW at +5V. - Does the ADC121C021CIMK/NOPB support multiple I2C interface speed modes?
Yes, it supports standard (100 kHz), fast (400 kHz), and high-speed (3.4 MHz) I2C interface modes. - What is the purpose of the Alert feature in the ADC121C021CIMK/NOPB?
The Alert feature provides an interrupt when the analog input violates a programmable upper or lower limit value. - Is the ADC121C021CIMK/NOPB qualified for automotive applications?
Yes, the ADC121C021Q version is AEC-Q100 Grade 2 qualified for automotive applications. - What is the conversion time of the ADC121C021CIMK/NOPB?
The conversion time is up to 179.856 µs. - Does the ADC121C021CIMK/NOPB have automatic power-down mode?
Yes, it has an automatic power-down mode that reduces power consumption to less than 1 µW while not converting. - How many pin-selectable chip addresses are available in the VSSOP package?
Up to nine pin-selectable chip addresses are available in the VSSOP package.
