Overview
The ADS1018IDGST is a precision, low-power, 12-bit analog-to-digital converter (ADC) produced by Texas Instruments. This ultrasmall device is available in leadless X2QFN-10 or VSSOP-10 packages, making it ideal for power- and space-constrained sensor-measurement applications. The ADS1018 integrates a programmable gain amplifier (PGA), an internal voltage reference, an oscillator, and a high-accuracy temperature sensor. These features, combined with a wide power-supply range from 2 V to 5.5 V, enable the measurement of a wide range of sensor signals with high resolution and accuracy.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12 Bits | |
| Sample Rate (max) | 3300 SPS | |
| Power Supply Range | 2 V to 5.5 V | V |
| Current Consumption (Continuous Mode) | 150 μA | μA |
| Current Consumption (Single-Shot Mode) | Automatic Power-Down | |
| Input Type | Differential, Single-Ended | |
| Input Range | ±256 mV to ±6.144 V | V |
| Operating Temperature Range | -40°C to +125°C | °C |
| Package Type | VSSOP-10, X2QFN-10 | |
| Interface | SPI | |
| Integrated Features | PGA, Oscillator, Temperature Sensor, Voltage Reference |
Key Features
- Programmable Gain Amplifier (PGA): Offers input ranges from ±256 mV to ±6.144 V, allowing both large and small signals to be measured with high resolution.
- Internal Voltage Reference and Oscillator: Reduces the need for external components and improves performance.
- High-Accuracy Temperature Sensor: Used for system-level temperature monitoring or cold-junction compensation for thermocouples.
- Input Multiplexer: Allows measurement of two differential or four single-ended inputs.
- Low Power Consumption: Continuous mode: 150 μA; Single-shot mode: Automatic power-down after conversion.
- Wide Power-Supply Range: Operates from 2 V to 5.5 V.
- Serial Peripheral Interface (SPI): For data transfer.
- Single-Cycle Settling and High-Speed Conversions: Up to 3300 samples per second (SPS).
Applications
- Temperature Measurement: Thermocouple measurement, cold-junction compensation, thermistor measurement.
- Portable Instrumentation: Suitable for battery-powered devices due to low power consumption.
- Factory Automation and Process Controls: Ideal for sensor-measurement applications in industrial settings.
Q & A
- What is the resolution of the ADS1018IDGST ADC?
The ADS1018IDGST has a 12-bit resolution.
- What is the maximum sample rate of the ADS1018IDGST?
The maximum sample rate is 3300 samples per second (SPS).
- What is the power supply range for the ADS1018IDGST?
The device operates from 2 V to 5.5 V.
- How does the ADS1018IDGST manage power consumption?
In continuous mode, it consumes 150 μA, and in single-shot mode, it automatically powers down after a conversion.
- What types of inputs can the ADS1018IDGST handle?
The device can handle both differential and single-ended inputs.
- What is the operating temperature range of the ADS1018IDGST?
The operating temperature range is -40°C to +125°C.
- What interface does the ADS1018IDGST use for data transfer?
The device uses a Serial Peripheral Interface (SPI).
- What integrated features does the ADS1018IDGST have?
The device includes a PGA, oscillator, temperature sensor, and voltage reference.
- How does the input multiplexer work in the ADS1018IDGST?
The input multiplexer allows measurement of two differential or four single-ended inputs.
- What are some common applications of the ADS1018IDGST?
Common applications include temperature measurement, portable instrumentation, and factory automation.
