32-bit 38-kSPS 10-ch delta-sigma ADC with PGA and voltage reference for factory automation
Product details
Parameters
Package | Pins | Size
Features
- Precision, 32-bit, ΔΣ ADC
- Auxiliary 24-Bit, ΔΣ ADC (ADS1263)
- Data Rates: 2.5 SPS to 38400 SPS
- Differential Input, CMOS PGA
- 11 Multifunction Analog Inputs
- High-Accuracy Architecture
- Offset Drift: 1 nV/°C
- Gain Drift: 0.5 ppm/°C
- Noise: 7 nVRMS (2.5 SPS, Gain = 32)
- Linearity: 3 ppm
- 2.5-V Internal Voltage Reference
- Temperature Drift: 2 ppm/°C
- 50-Hz and 60-Hz Rejection
- Single-Cycle Settled Conversions
- Dual Sensor Excitation Current Sources
- Internal Fault Monitors
- Internal ADC Test Signal
- 8 General-Purpose Input/Outputs
Description
The ADS1262 and ADS1263 are low-noise, low-drift, 38.4-kSPS, delta-sigma (ΔΣ) ADCs with an integrated PGA, reference, and internal fault monitors. The ADS1263 integrates an auxiliary, 24-bit, ΔΣ ADC intended for background measurements. The sensor-ready ADCs provide complete, high-accuracy, one-chip measurement solutions for the most-demanding sensor applications, including weigh scales, strain-gauge sensors, thermocouples, and resistance temperature devices (RTD).
The ADCs are comprised of a low-noise, CMOS PGA (gains 1 to 32), a ΔΣ modulator, followed by a programmable digital filter. The flexible analog front-end (AFE) incorporates two sensor-excitation current sources suitable for direct RTD measurement.
A single-cycle settling digital filter maximizes multiple-input conversion throughput, while providing 130-dB rejection of 50-Hz and 60-Hz line cycle interference.
The ADS1262 and ADS1263 are pin and functional compatible. These devices are available in a 28-pin TSSOP package and are fully specified over the –40°C to +125°C temperature range.
Technical documentation
= Top documentation for this product selected by TI
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
ADS1262EVM-PDK
Description
The ADS1262EVM performance demonstration kit (PDK) is a platform for evaluation of the ADS1262 analog-to-digital converter (ADC). The ADS1262 is a low-noise, low-drift, 32-bit delta-sigma ADC for precision industrial applications with data rates up to 38.4kSPS. The ADS1262EVM-PDK includes the (...)
Features
- Includes all required support circuitry for the ADS1262
- ADCProTM evaluation software for Microsoft Windows (XP & 7)TM with built-in analysis tools
- Configurable inputs, references, supplies, and clock sources
- Easily accesible signals via testpoints and headers
Design tools & simulation
SBAM246.ZIP (90 KB) - IBIS Model
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
TINA-TI — TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
ADC-INPUT-CALC — ADC-INPUT-CALC is an online tool that provides support for designing the input buffer to an analog-to-digital converter (ADC). It offers 24 different op-amp based buffer circuits that can be used to drive an ADC input. The available topologies cover differential, single-ended and transformer-coupled (...)
ADS126X-CALC-TOOL — The ADS1262-ADS1263 Excel calculator provides the user with several easy-to-use tools to help simplify the configuration of the ADS1262 and ADS1263. This calculator also provides valuable information to help the user understand frequency and settling time requirements as well as validate output code (...)
Features
- Complete register map
- PGA input range calculator
- SINC1/2/3/4 filter response for ADC1
- SIN3 filter response for ADC2
- Raw code converter
- CRC & Checksum calculator
ANALOG-ENGINEER-CALC — 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 op-amp gain with feedback (...)
Features
- Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
- Noise calculations
- Common unit translation
- Solves common amplifier circuit design problems
- Gain selections using standard resistors
- Filter configurations
- Total noise for common amplifier configurations
- (...)
Reference designs
TIPD188 — This precision weigh-scale reference design achieves greater than 50,000 noise-free counts of resolution. Offset and offset drift errors are nearly eliminated by ac bridge excitation. This design takes advantage of the high-resolution ADS1262 delta-sigma ADC.
Design files
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download TIPD188 BOM.pdf (193KB)
TIDA-00550 — The TIDA-00550, dual channel-to-channel isolated universal analog input module reference design for programmable logic controllers (PLC), combines precision and flexibility. This TI Design used in conjunction with sensor transmitters can measure standard input voltages and currents as well as (...)
Design files
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download TIDA-00550 BOM.pdf (167KB) -
download TIDA-00550 Assembly Drawing .pdf (653KB) -
download TIDA-00550 PCB.pdf (5531KB) -
download TIDA-00550 PCB 3D Print.pdf (3186KB) -
download TIDA-00550 CAD Files.zip (2146KB) -
download TIDA-00550 Gerber.zip (663KB)
TIPD164 — This TI Designs, Precision Verified design implements an analog input module for industrial voltages, currents, and temperature sensors. For industrial outputs, the possible input ranges include: 4-20 mA, 0-20 mA, +/-25 mA, 0-5 V, 0-10 V, +/-5 V, +/-10 V. The design includes conditioning (...)
Design files
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download TIPD164 BOM.pdf (72KB)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| TSSOP (PW) | 28 | View options |
Ordering & quality
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- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
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- Qualification summary
- Ongoing reliability monitoring
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