Overview
The ADC124S021, produced by Texas Instruments, is a low-power, four-channel, 12-bit analog-to-digital converter (ADC) designed for high-speed and low-power applications. This CMOS ADC features a successive-approximation register architecture with an internal track-and-hold circuit, allowing it to operate over a sample rate range of 50 ksps to 200 ksps. The device is packaged in a 10-lead VSSOP package and operates over an industrial temperature range of −40°C to +85°C.
The ADC124S021 is notable for its variable power management, single power supply operation from 2.7V to 5.25V, and low power consumption, making it suitable for battery-powered and portable systems. It also supports several serial interface standards, including SPI™, QSPI™, and MICROWIRE.
Key Specifications
| Parameter | Typical Limits | Units |
|---|---|---|
| Resolution | 12 Bits | |
| Sample Rate | 50 ksps to 200 ksps | |
| Integral Non-Linearity (INL) | ± 0.35 LSB (typ) | |
| Differential Non-Linearity (DNL) | +0.4 / −0.2 LSB (typ) | |
| Signal to Noise Ratio (SNR) | 72.0 dB (typ) | |
| Power Consumption (3V Supply) | 2.2 mW (typ) | |
| Power Consumption (5V Supply) | 7.9 mW (typ) | |
| Power-Down Consumption (3V Supply) | 0.14 µW (typ) | |
| Power-Down Consumption (5V Supply) | 0.32 µW (typ) | |
| Input Range | 0 to VA V | |
| Operating Temperature Range | −40°C to +85°C |
Key Features
- Four input channels (IN1 through IN4) with channel selection via control register.
- Variable power management with low power consumption.
- Single power supply operation from 2.7V to 5.25V.
- High-speed serial interface compatible with SPI™, QSPI™, MICROWIRE, and common DSP serial interfaces.
- No missing codes in the output.
- Internal track-and-hold circuit.
- Low power-down consumption.
- Industrial temperature range operation.
Applications
- Portable systems and battery-powered devices.
- Remote data acquisition systems.
- Instrumentation and control systems.
- Other applications requiring low power and high-speed analog-to-digital conversion.
Q & A
- What is the resolution of the ADC124S021?
The ADC124S021 has a resolution of 12 bits.
- What is the sample rate range of the ADC124S021?
The sample rate range is from 50 ksps to 200 ksps.
- What is the power supply voltage range for the ADC124S021?
The power supply voltage range is from 2.7V to 5.25V.
- How many input channels does the ADC124S021 have?
The ADC124S021 has four input channels (IN1 through IN4).
- What are the typical power consumption values for the ADC124S021?
Typical power consumption is 2.2 mW at 3V and 7.9 mW at 5V.
- What is the power-down consumption of the ADC124S021?
The power-down consumption is 0.14 µW at 3V and 0.32 µW at 5V.
- What serial interfaces is the ADC124S021 compatible with?
The ADC124S021 is compatible with SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces.
- Does the ADC124S021 have any missing codes in its output?
No, the ADC124S021 is ensured not to have any missing codes.
- What is the operating temperature range of the ADC124S021?
The operating temperature range is from −40°C to +85°C.
- What is the package type of the ADC124S021?
The ADC124S021 is packaged in a 10-lead VSSOP package.
