Overview
The ADC124S021CIMMX from Texas Instruments is a low-power, four-channel CMOS 12-bit analog-to-digital converter (ADC) designed with a high-speed serial interface. This device is fully specified over a sample rate range of 50 ksps to 200 ksps, making it versatile for various applications. The ADC124S021 operates on a single supply voltage ranging from +2.7V to +5.25V and features a successive-approximation register architecture with an internal track-and-hold circuit. It can accept up to four input signals at inputs IN1 through IN4 and outputs serial data compatible with standards such as SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces.
Key Specifications
| Parameter | Typical Limits | Units |
|---|---|---|
| DNL (Differential Non-Linearity) | +0.4 / −0.2 LSB | LSB |
| INL (Integral Non-Linearity) | ± 0.35 LSB | LSB |
| SNR (Signal-to-Noise Ratio) | 72.0 dB | dB |
| Power Consumption (3V Supply) | 2.2 mW | mW |
| Power Consumption (5V Supply) | 7.9 mW | mW |
| Power Consumption in Power-Down Mode (3V Supply) | 0.14 µW | µW |
| Power Consumption in Power-Down Mode (5V Supply) | 0.32 µW | µW |
| Sample Rate Range | 50 ksps to 200 ksps | ksps |
| Operating Temperature Range | −40°C to +85°C | °C |
| Package Type | 10-lead VSSOP |
Key Features
- Low power consumption with 2.2 mW at 3V and 7.9 mW at 5V supply, and ultra-low power-down mode of 0.14 µW at 3V and 0.32 µW at 5V.
- Four input channels (IN1 through IN4) with a successive-approximation register architecture and internal track-and-hold circuit.
- High-speed serial interface compatible with SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces.
- Single supply operation with a voltage range of +2.7V to +5.25V.
- Industrial temperature range operation from −40°C to +85°C.
- Packaged in a 10-lead VSSOP package.
- No power-up delays or dummy conversions required; immediate full conversion capability after power-up.
Applications
- Portable systems: Ideal for battery-powered devices due to its low power consumption.
- Remote data acquisition: Suitable for remote sensing and data collection applications.
- Instrumentation and control systems: Used in various industrial and scientific instruments requiring precise analog-to-digital conversion.
Q & A
- What is the resolution of the ADC124S021?
The ADC124S021 is a 12-bit analog-to-digital converter.
- What is the sample rate range of the ADC124S021?
The sample rate range is from 50 ksps to 200 ksps.
- How many input channels does the ADC124S021 have?
The ADC124S021 has four input channels (IN1 through IN4).
- What is the power consumption of the ADC124S021 at 3V and 5V supply?
At 3V supply, the power consumption is 2.2 mW, and at 5V supply, it is 7.9 mW.
- What is the power consumption in power-down mode?
In power-down mode, the power consumption is 0.14 µW at 3V and 0.32 µW at 5V.
- What is the operating temperature range of the ADC124S021?
The operating temperature range is from −40°C to +85°C.
- What type of package does the ADC124S021 come in?
The ADC124S021 is packaged in a 10-lead VSSOP package.
- Is there a need for power-up delays or dummy conversions with the ADC124S021?
No, there are no power-up delays or dummy conversions required with the ADC124S021.
- What serial interfaces is the ADC124S021 compatible with?
The ADC124S021 is compatible with SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces.
- What is the typical SNR of the ADC124S021?
The typical SNR is 72.0 dB.
