Packaging information
| Package | Pins X2QFN (RUG) | 10 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 250 | SMALL T&R |
Features for the ADS1018
- Ultrasmall X2QFN Package
2 mm × 1.5 mm × 0.4 mm - 12-Bit Noise-Free Resolution
- Wide Supply Range: 2 V to 5.5 V
- Low Current Consumption:
- Continuous Mode: Only 150 µA
- Single-Shot Mode: Automatic Power-Down
- Programmable Data Rate: 128 SPS to 3300 SPS
- Single-Cycle Settling
- Internal Low-Drift Voltage Reference
- Internal Temperature Sensor:
2°C (max) Error - Internal Oscillator
- Internal PGA
- Four Single-Ended or Two Differential Inputs
- Specified Temperature: –40°C to +125°C
Description for the ADS1018
The ADS1018 is a precision, low-power, 12-bit, noise-free, analog-to-digital converter (ADC) that provides all features necessary to measure the most common sensor signals in an ultrasmall, leadless, X2QFN-10 or VSSOP-10 package. The ADS1018 integrates a programmable gain amplifier (PGA), voltage reference, oscillator and high-accuracy temperature sensor. These features, along with a wide power-supply range from 2 V to 5.5 V, make the ADS1018 ideally suited for power- and space-constrained, sensor-measurement applications.
The ADS1018 performs conversions at data rates up to 3300 samples per second (SPS). The PGA offers input ranges from ±256 mV to ±6.144 V, allowing both large and small signals to be measured with high resolution. An input multiplexer (mux) allows measurement of two differential or four single-ended inputs. The high-accuracy temperature sensor is used for system-level temperature monitoring, or cold-junction compensation for thermocouples.
The ADS1018 operates either in continuous-conversion mode, or in a single-shot mode that automatically powers down after a conversion. Single-shot mode significantly reduces current consumption during idle periods. Data are transferred through a serial peripheral interface (SPI™).