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Product InformationFeatures
SPI is a trademark of Motorola, Inc. All other trademarks are the property of their respective owners. Description
The ADS1255 and ADS1256 are extremely low-noise, 24-bit analog-to-digital (A/D) converters. They provide complete high-resolution measurement solutions for the most demanding applications. The converter is comprised of a 4th-order, delta-sigma (ΔΣ) modulator followed by a programmable digital filter. A flexible input multiplexer handles differential or single-ended signals and includes circuitry to verify the integrity of the external sensor connected to the inputs. The selectable input buffer greatly increases the input impedance and the low-noise programmable gain amplifier (PGA) provides gains from 1 to 64 in binary steps. The programmable filter allows the user to optimize between resolution of up to 23 bits noise-free and data rate of up to 30k samples per second (SPS). The converters offer fast channel cycling for measuring multiplexed inputs and can also perform one-shot conversions that settle in just a single cycle. Communication is handled over an SPI-compatible serial interface that can operate with a 2-wire connection. Onboard calibration supports both self and system correction of offset and gain errors for all the PGA settings. Bidirectional digital I/Os and a programmable clock output driver are provided for general use. The ADS1255 is packaged in an SSOP-20, and the ADS1256 in an SSOP-28. |
| Price ($US) | Packaging | CAD Design Tools | Samples | ||||||
| Device | Status | Temp (oC) | Price ($US) | Quantity | Package | Pins | Top Side Marking | Package QTY | Package Carrier | Symbols | Footprints | Samples |
| ADS1255IDBR | ACTIVE | -40 to 85 | 8.70 | 100u | SSOP (DB) | 20 | View | 1000 | LARGE T&R | Purchase Samples | ||
| ADS1255IDBRG4 | ACTIVE | -40 to 85 | 8.70 | 100u | SSOP (DB) | 20 | View | 1000 | LARGE T&R | Purchase Samples | ||
| ADS1255IDBT | ACTIVE | -40 to 85 | 9.60 | 100u | SSOP (DB) | 20 | View | 250 | SMALL T&R | |||
| ADS1255IDBTG4 | ACTIVE | -40 to 85 | 9.60 | 100u | SSOP (DB) | 20 | View | 250 | SMALL T&R | |||
* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.
| TI Inventory Status | Reported Distributor Inventory | |||||||
| ADS1255IDBR | As of 9:06 AM GMT, 29 Aug 2008 | As of 9:06 AM GMT, 29 Aug 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 0* | >10k | 5 Dec | 16 Weeks | None Reported View Distributors | |||||
| ADS1255IDBRG4 | As of 9:06 AM GMT, 29 Aug 2008 | As of 9:06 AM GMT, 29 Aug 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 0* | >10k | 5 Dec | 16 Weeks | None Reported View Distributors | |||||
| ADS1255IDBT | As of 9:06 AM GMT, 29 Aug 2008 | As of 9:06 AM GMT, 29 Aug 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 0* | >10k | 5 Dec | 16 Weeks | Americas | Newark | >1k | |||
| Europe | Avnet-SILICA | 74 | ||||||
| ADS1255IDBTG4 | As of 9:06 AM GMT, 29 Aug 2008 | As of 9:06 AM GMT, 29 Aug 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 0* | >10k | 5 Dec | 16 Weeks | Europe | EBV Elektronik | >1k | |||
| Spoerle | 250 | |||||||
* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.
** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.
| Product Content | DPPM / MTBF / FIT Rate | ||||
| Device | Eco Plan* | Lead / Ball Finish | MSL Rating / Peak Reflow | Details | Details |
| ADS1255IDBR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| ADS1255IDBRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| ADS1255IDBT | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| ADS1255IDBTG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.
If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.
View Application Notes for Analog to Digital Converters
View User Guides for Analog to Digital Converters
| Name | Part # | Company | Tool / Software Type |
| Anti-Aliasing Calculation Tool for A to D Converters | ANTIALIASINGCALC | Texas Instruments | Calculation Utilities |
| Op Amp to ADC Circuit Topology Calculator | ADC-INPUT-CALC | Texas Instruments | Calculation Utilities |
| ADS1256 Evaluation Module | ADS1256EVM | Texas Instruments | Development Boards/EVMs |
| Alternative Products - Are similar to ADS1255 | |||
| Part # | Name | Comments | |
| ADS1271 | 24-Bit, 105kSPS Industrial Delta-Sigma ADC | Similar device with excellent AC performance in addition to the DC performance | |
| ADS1256 | 24 Bit, 30kSPS Very Low Noise Delta-Sigma ADC with Multiplexer | 4 channel version of ADS1255 | |
| ADS1258 | 24 Bit, Fast Channel Cycling Delta-Sigma ADC | 8 channel version of ADS1255 | |
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| Complementary Products - Can be used with ADS1255 | |||
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