Overview
The ADS1015-Q1, produced by Texas Instruments, is a precision, low-power, 12-bit analog-to-digital converter (ADC) designed for automotive applications. It is part of the ADS101x-Q1 family, which includes the ADS1013-Q1, ADS1014-Q1, and ADS1015-Q1. This ADC is AEC-Q100 qualified and functional safety-capable, making it suitable for demanding automotive environments. The device features a wide operating temperature range of –40°C to +125°C and a wide supply range of 2.0 V to 5.5 V, ensuring reliability in various conditions.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Number of Channels | 4 single-ended or 2 differential inputs |
| Supply Voltage Range | 2.0 V to 5.5 V |
| Current Consumption | 150 µA (continuous-conversion mode) |
| Data Rate | 128 SPS to 3.3 kSPS |
| Input Ranges (PGA) | ±256 mV to ±6.144 V |
| Operating Temperature Range | –40°C to +125°C |
| Package Options | VSSOP-10, UQFN-10 |
| Interface | I2C with four pin-selectable addresses |
Key Features
- Internal low-drift voltage reference and oscillator
- Programmable gain amplifier (PGA) for input ranges from ±256 mV to ±6.144 V
- Digital comparator for under- and overvoltage detection
- Input multiplexer (MUX) allowing two differential or four single-ended input measurements
- Single-cycle settling and programmable data rates up to 3.3 kSPS
- I2C interface with four pin-selectable addresses
Applications
The ADS1015-Q1 is designed for power- and space-constrained sensor measurement applications, particularly in the automotive sector. It is suitable for various automotive systems, including sensor monitoring, diagnostic systems, and other applications requiring precise and reliable analog-to-digital conversion.
Q & A
- What is the resolution of the ADS1015-Q1 ADC?
The ADS1015-Q1 has a 12-bit resolution.
- What is the operating temperature range of the ADS1015-Q1?
The operating temperature range is –40°C to +125°C.
- What are the package options for the ADS1015-Q1?
The ADS1015-Q1 is available in VSSOP-10 and UQFN-10 packages.
- What is the current consumption of the ADS1015-Q1 in continuous-conversion mode?
The current consumption is 150 µA in continuous-conversion mode.
- What are the input ranges provided by the PGA in the ADS1015-Q1?
The PGA offers input ranges from ±256 mV to ±6.144 V.
- Does the ADS1015-Q1 have an internal oscillator and voltage reference?
Yes, the ADS1015-Q1 includes an internal low-drift voltage reference and an oscillator.
- What interface does the ADS1015-Q1 use for communication?
The ADS1015-Q1 uses an I2C interface with four pin-selectable addresses.
- Can the ADS1015-Q1 perform differential input measurements?
Yes, the ADS1015-Q1 can perform two differential or four single-ended input measurements.
- What is the purpose of the digital comparator in the ADS1015-Q1?
The digital comparator is used for under- and overvoltage detection.
- Is the ADS1015-Q1 AEC-Q100 qualified?
Yes, the ADS1015-Q1 is AEC-Q100 qualified for automotive applications.
