Overview
The ADC121S101CIMF from Texas Instruments is a low-power, single-channel CMOS 12-bit analog-to-digital converter (ADC) designed with a high-speed serial interface. This converter is distinguished by its specification over a range of sample rates from 500 ksps to 1 Msps, unlike conventional ADCs that are specified at a single sample rate. The ADC121S101CIMF is based on a successive-approximation register architecture and includes an internal track-and-hold circuit. It operates with a single power supply ranging from 2.7 V to 5.25 V and is compatible with several serial interface standards such as SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12-bit | |
| Sample Rate Range | 500 ksps to 1 Msps | |
| Supply Voltage Range | 2.7 V to 5.25 V | V |
| Power Consumption (3V Supply) | 2 mW (Typical) | mW |
| Power Consumption (5V Supply) | 10 mW (Typical) | mW |
| Power Consumption in Power-Down Mode (5V Supply) | 2.6 µW (Typical) | µW |
| Differential Nonlinearity (DNL) | +0.5 / –0.3 LSB (Typical) | LSB |
| Integral Nonlinearity (INL) | ±0.40 LSB (Typical) | LSB |
| Operating Temperature Range | –40°C to 125°C | °C |
| Package Types | 6-pin WSON, 6-pin SOT-23 |
Key Features
- Low power consumption with typical values of 2 mW at 3V and 10 mW at 5V supply.
- Power-down feature reducing power consumption to as low as 2.6 µW using a 5-V supply.
- Variable power management and single power supply operation.
- Compatibility with SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces.
- AEC-Q100 Grade 1 qualified, making it suitable for automotive applications.
- Internal track-and-hold circuit and successive-approximation register architecture.
- Operation over a temperature range of –40°C to 125°C.
Applications
- Portable Systems: Ideal for battery-powered devices due to its low power consumption.
- Remote Data Acquisition: Suitable for remote sensing and data logging applications.
- Instrumentation and Control Systems: Used in various industrial control and measurement systems.
- Automotive: Qualified to AEC-Q100 Grade 1 standards, making it suitable for automotive applications.
Q & A
- What is the resolution of the ADC121S101CIMF?
The ADC121S101CIMF has a 12-bit resolution.
- What is the sample rate range of the ADC121S101CIMF?
The sample rate range is from 500 ksps to 1 Msps.
- What is the power consumption of the ADC121S101CIMF at 3V and 5V supplies?
The typical power consumption is 2 mW at 3V and 10 mW at 5V supply.
- 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-V supply.
- What are the compatible serial interfaces for the ADC121S101CIMF?
The ADC is compatible with SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces.
- What are the package types available for the ADC121S101CIMF?
The ADC is available in 6-pin WSON and 6-pin SOT-23 packages.
- What is the operating temperature range of the ADC121S101CIMF?
The operating temperature range is from –40°C to 125°C.
- Is the ADC121S101CIMF suitable for automotive applications?
Yes, it is AEC-Q100 Grade 1 qualified, making it suitable for automotive applications.
- What is the architecture of the ADC121S101CIMF?
The ADC is based on a successive-approximation register architecture with an internal track-and-hold circuit.
- How does the power-down feature work?
The power-down feature reduces the power consumption to as low as 2.6 µW using a 5-V supply.
