Support-Software
ADS1258-C-EXAMPLE-CODE — ADS1258 Example C Code
Expedite your embedded design using this example C code for the ADS1258
ADS1158
16-kanaliger Delta-Sigma-ADC, 16 Bit, 125 kSPS, mit schnellem Kanalscan und automatischem Sequenzer
Datenblatt
ADS1158
- 16 Bits, No Missing Codes
- Fixed-Channel or Automatic Channel Scan
- Fixed-Channel Data Rate: 125kSPS
- Auto-Scan Data Rate: 23.7kSPS/Channel
- Single-Conversion Settled Data
- 16 Single-Ended or 8 Differential Inputs
- Unipolar (+5V) or Bipolar (±2.5V) Operation
- 0.3LSB (INL)
- DC Stability:
1µV/°C Offset Drift, 2ppm/°C Gain Drift - Open-Sensor Detection
- Conversion Control Pin
- Multiplexer Output for External Signal Conditioning
- On-Chip Temperature, Reference, Offset, Gain, and Supply Voltage Readback
- 42mW Power Dissipation
- Standby, Sleep, and Power-Down Modes
- Eight General-Purpose Inputs/Outputs (GPIO)
- 32.768kHz Crystal Oscillator or External Clock
- Medical, Avionics, and Process Control
- Machine and System Monitoring
- Fast Scan Multi-Channel Instrumentation
- Industrial Systems
- Test and Measurement Systems
SPI is a trademark of Motorola, Inc.
All other trademarks are the property of their respective owners.
The ADS1158 is a 16-channel (multiplexed), low-noise, 16-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC) that provides single-cycle settled data at channel scan rates from 1.8k to 23.7k samples per second (SPS) per channel. A flexible input multiplexer accepts combinations of eight differential or 16 single-ended inputs with a full-scale differential range of 5V or true bipolar range of ±2.5V when operating with a 5V reference. The fourth-order delta-sigma modulator is followed by a fifth-order sinc digital filter optimized for low-noise performance.
The differential output of the multiplexer is accessible to allow signal conditioning before the input of the ADC. Internal system monitor registers provide supply voltage, temperature, reference voltage, gain, and offset data.
An onboard PLL generates the system clock from a 32.768kHz crystal, or can be overridden by an external clock source. A buffered system clock output (15.7MHz) is provided to drive a microcontroller or additional converters.
Serial digital communication is handled via an SPI™-compatible interface. A simple command word structure controls channel configuration, data rates, digital I/O, monitor functions, etc.
Programmable sensor bias current sources can be used to bias sensors or verify sensor integrity.
The ADS1158 operates from a unipolar +5V or bipolar ±2.5V analog supply and a digital supply compatible with interfaces ranging from 2.7V to 5.25V. The ADS1158 is available in a QFN-48 package.
Technische Dokumentation
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Alle anzeigen 10 | Top-Dokumentation | Typ | Titel | Format-Optionen | Datum |
|---|---|---|---|---|
| * | Data sheet | 16-Channel, 16-Bit Analog-to-Digital Converter datasheet (Rev. D) | 17 Mär 2011 | |
| Application note | Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) | PDF | HTML | 18 Mär 2024 | |
| Application note | A Basic Guide to Bridge Measurements (Rev. A) | PDF | HTML | 13 Mär 2024 | |
| Application note | QFN and SON PCB Attachment (Rev. C) | PDF | HTML | 06 Dez 2023 | |
| Application note | Digital Filter Types in Delta-Sigma ADCs (Rev. A) | PDF | HTML | 29 Mär 2023 | |
| E-book | Fundamentals of Precision ADC Noise Analysis (Rev. A) | 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 Mär 2015 | ||
| Application note | ADS1258, ADS1258-EP, and ADS1158 SPI™ Timeout Function | 20 Apr 2012 | ||
| Analog Design Journal | How delta-sigma ADCs work, Part 2 | 09 Nov 2011 |
Design und Entwicklung
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Benutzerhandbuch: PDF
| Gehäuse | Pins | CAD-Symbole, Footprints und 3D-Modelle |
|---|---|---|
| VQFNP (RTC) | 48 | Ultra Librarian |
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