Overview
The ADS1015IDGSR, produced by Texas Instruments, is a precision, low-power, 12-bit analog-to-digital converter (ADC) designed for power- and space-constrained sensor measurement applications. This device is part of the ADS101x family, which includes the ADS1013 and ADS1014. The ADS1015 is available in ultra-small, leadless X2QFN-10 and VSSOP-10 packages, making it ideal for compact and efficient system designs.
The ADS1015 features a wide operating supply range of 2.0 V to 5.5 V, low current consumption of 150 µA in continuous-conversion mode, and a programmable data rate up to 3.3 kSPS. It also includes an internal low-drift voltage reference, an internal oscillator, and an I2C interface with four pin-selectable addresses.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12 bits | |
| Supply Range | 2.0 V to 5.5 V | V |
| Current Consumption (Continuous-Conversion Mode) | 150 µA | µA |
| Data Rate | 128 SPS to 3.3 kSPS | SPS |
| Operating Temperature Range | –40°C to +125°C | °C |
| Package Dimensions (X2QFN) | 2 mm × 1.5 mm × 0.4 mm | mm |
| Input Types | Four single-ended or two differential inputs | |
| Programmable Gain Amplifier (PGA) Input Ranges | ±256 mV to ±6.144 V | V |
| I2C Interface | Four pin-selectable addresses |
Key Features
- Ultra-small X2QFN and VSSOP packages for compact designs
- 12-bit noise-free resolution for high accuracy measurements
- Wide supply range: 2.0 V to 5.5 V for flexibility in different power environments
- Low current consumption: 150 µA in continuous-conversion mode for power efficiency
- Programmable data rate: 128 SPS to 3.3 kSPS to accommodate various sampling needs
- Single-cycle settling for fast conversion times
- Internal low-drift voltage reference and internal oscillator for reliable operation
- I2C interface with four pin-selectable addresses for easy integration
- Four single-ended or two differential inputs via an input multiplexer (MUX)
- Programmable comparator for under- and overvoltage detection
Applications
- Portable instrumentation: Ideal for handheld devices due to its small size and low power consumption.
- Battery voltage and current monitoring: Suitable for monitoring battery health in various devices.
- Temperature measurement systems: Can be used in temperature sensing applications requiring high accuracy.
- Consumer electronics: Used in a variety of consumer devices where space and power efficiency are crucial.
- Factory automation and process control: Suitable for industrial applications requiring precise sensor measurements.
Q & A
- What is the resolution of the ADS1015?
The ADS1015 has a 12-bit noise-free resolution.
- What is the operating supply range of the ADS1015?
The ADS1015 operates from a supply range of 2.0 V to 5.5 V.
- How much current does the ADS1015 consume in continuous-conversion mode?
The ADS1015 consumes 150 µA in continuous-conversion mode.
- What are the programmable data rates of the ADS1015?
The ADS1015 has programmable data rates from 128 SPS to 3.3 kSPS.
- What types of input configurations does the ADS1015 support?
The ADS1015 supports four single-ended or two differential input configurations.
- Does the ADS1015 have an internal voltage reference and oscillator?
Yes, the ADS1015 includes an internal low-drift voltage reference and an internal oscillator.
- What is the operating temperature range of the ADS1015?
The ADS1015 operates over a temperature range of –40°C to +125°C.
- How many pin-selectable addresses does the I2C interface of the ADS1015 have?
The I2C interface of the ADS1015 has four pin-selectable addresses.
- What is the purpose of the programmable comparator in the ADS1015?
The programmable comparator in the ADS1015 is used for under- and overvoltage detection.
- What are some common applications of the ADS1015?
The ADS1015 is commonly used in portable instrumentation, battery voltage and current monitoring, temperature measurement systems, consumer electronics, and factory automation and process control.
