Overview
The ADC121S101CIMFX 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 based on a successive-approximation register architecture and includes an internal track-and-hold circuit. It is fully specified over a sample rate range of 500 ksps to 1 Msps, making it versatile for various applications. The ADC operates with a single supply voltage ranging from 2.7 V to 5.25 V and is available in 6-pin WSON and SOT-23 packages. It is compatible with several serial interface standards, including SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12-bit | |
| Sample Rate | 500 ksps to 1 Msps | |
| Supply Voltage | 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 | 2.6 µW (using 5-V supply) | µW |
| Differential Non-Linearity (DNL) | +0.5 / -0.3 LSB (typical) | LSB |
| Integral Non-Linearity (INL) | ±0.40 LSB (typical) | LSB |
| Operating Temperature Range | -40°C to 125°C | °C |
| Package Types | 6-pin WSON, SOT-23 |
Key Features
- Specified over a range of sample rates (500 ksps to 1 Msps)
- 6-pin WSON and SOT-23 packages
- Variable power management
- Single power supply with a range from 2.7 V to 5.25 V
- Compatible with SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces
- AEC-Q100 Grade 1 qualified for automotive applications
- Low power consumption with a power-down feature reducing power to as low as 2.6 µW
Applications
- Portable systems
- Remote data acquisition
- Instrumentation and control systems
- Automotive systems (AEC-Q100 Grade 1 qualified)
Q & A
- What is the resolution of the ADC121S101?
The ADC121S101 has a 12-bit resolution.
- What is the sample rate range of the ADC121S101?
The sample rate range is from 500 ksps to 1 Msps.
- What are the package options for the ADC121S101?
The ADC121S101 is available in 6-pin WSON and SOT-23 packages.
- What is the operating temperature range of the ADC121S101?
The operating temperature range is from -40°C to 125°C.
- Is the ADC121S101 compatible with automotive applications?
- What are the typical power consumption values for the ADC121S101?
The typical power consumption is 2 mW using a 3V supply and 10 mW using a 5V supply.
- How low can the power consumption be reduced in power-down mode?
The power consumption can be reduced to as low as 2.6 µW using a 5-V supply in power-down mode.
- What serial interface standards is the ADC121S101 compatible with?
The ADC121S101 is compatible with SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces.
- What is the typical differential non-linearity (DNL) and integral non-linearity (INL) of the ADC121S101?
The typical DNL is +0.5 / -0.3 LSB, and the typical INL is ±0.40 LSB.
- How does the ADC121S101 manage power?
The ADC121S101 features variable power management, including a power-down mode to reduce power consumption significantly.
