ADS1018
12-bit, 3.3-kSPS, 4-channel, delta-sigma ADC with PGA, oscillator, VREF, temp sensor and SPI
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
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™).
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | ADS1018 Ultrasmall, Low-Power, SPI™-Compatible, 12-Bit, Analog-to-Digital Converter With Internal Reference and Temperature Sensor datasheet (Rev. D) | PDF | HTML | 11 Sep 2019 |
Circuit design | Precision measurement circuit with 8 different channels and SPI (Rev. A) | PDF | HTML | 19 Sep 2024 | |
Application note | Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) | PDF | HTML | 18 Mar 2024 | |
Application note | QFN and SON PCB Attachment (Rev. C) | PDF | HTML | 06 Dec 2023 | |
Application note | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | 29 Mar 2023 | |
EVM User's guide | ADS1x18EVM User's Guide | 27 Oct 2020 | ||
E-book | Fundamentals of Precision ADC Noise Analysis | 19 Jun 2020 | ||
Analog Design Journal | How delta-sigma ADCs work, Part 1 (Rev. A) | 19 Sep 2016 | ||
E-book | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | 19 Mar 2015 | ||
Analog Design Journal | How delta-sigma ADCs work, Part 2 | 09 Nov 2011 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
ADS1018EVM — ADS1018 12-bit, 3.3-kSPS 4-channel, delta-sigma ADC evaluation module
The ADS1018 evaluation module (EVM) is a complete solution for evaluating the ADS1018 product, which is an ultra-small, low-power, precision, 12-bit, analog-to-digital converter (ADC). Power and I/O are provided via USB connection and a simple software interface. Analog inputs can be connected to a (...)
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
Supported products & hardware
Products
Precision op amps (Vos<1mV)
General-purpose op amps
Audio op amps
Transimpedance amplifiers
High-speed op amps (GBW ≥ 50 MHz)
Power op amps
Video amplifiers
Line drivers
Transconductance amplifiers & laser drivers
Fully differential amplifiers
Precision ADCs
Biosensing AFEs
High-speed ADCs (≥10 MSPS)
Touchscreen controllers
Difference amplifiers
Instrumentation amplifiers
Audio line receivers
Analog current-sense amplifiers
Digital power monitors
Analog current-sense amplifiers with integrated shunt resistor
Digital power monitors with integrated shunt resistor
Die & wafer services
RF receivers
RF transmitters
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TINA-TI — SPICE-based analog simulation program
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
VSSOP (DGS) | 10 | Ultra Librarian |
X2QFN (RUG) | 10 | Ultra Librarian |
Ordering & quality
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- Lead finish/Ball material
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- Material content
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- Ongoing reliability monitoring
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