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Product InformationFeatures
All other trademarks are the property of their respective owners Description
The ADS1281 is an extremely high-performance, single-chip analog-to-digital converter (ADC) designed for the demanding needs of energy exploration and seismic monitoring environments. The single-chip design promotes board area savings for improvements in high-density applications. The converter uses a fourth-order, inherently stable, delta-sigma (ΔΣ) modulator that provides outstanding noise and linearity performance. The modulator is used either in conjunction with the on-chip digital filter, or can be bypassed for use with post-processing filters. The digital filter consists of sinc and finite impulse response (FIR) low-pass stages followed by an infinite impulse response (IIR) high-pass filter (HPF) stage. Selectable decimation provides data rates from 250 to 4000 samples per second (SPS). The FIR low-pass stage provides both linear and minimum phase response. The HPF features an adjustable corner frequency. On-chip gain and offset scaling registers support system calibration. The synchronization input (SYNC) can be used to synchronize the conversions of multiple ADS1281s. The SYNC input also accepts a clock input for continuous alignment of conversions from an external source. Together, the modulator and filter dissipate only 12mW. The ADS1281 is available in a compact TSSOP-24 package and is fully specified from -40°C to +85°C, with a maximum operating range to +125°C. |
| Price | Packaging | CAD Design Tools | Samples | |||||
| Device | Status | Price | Quantity | Package | Pins | Top Side Marking | Package QTY | Package Carrier | Symbols | Footprints | Samples |
| ADS1281IPW | ACTIVE | 34.50 | 1ku | TSSOP (PW) | 24 | View | 60 | TUBE | Purchase Samples | ||
| ADS1281IPWG4 | ACTIVE | 34.50 | 1ku | TSSOP (PW) | 24 | View | 60 | TUBE | Purchase Samples | ||
| ADS1281IPWR | ACTIVE | 28.75 | 1ku | TSSOP (PW) | 24 | View | 2000 | LARGE T&R | |||
| ADS1281IPWRG4 | ACTIVE | 28.75 | 1ku | TSSOP (PW) | 24 | View | 2000 | LARGE 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 | |||||||
| ADS1281IPW | As of 10:18 AM GMT, 19 Nov 2008 | As of 10:18 AM GMT, 19 Nov 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 0* | 4440 | 17 Dec | 4 Weeks | Americas | Arrow | 60 | |||
| >10k | 22 Dec | Mouser Electronics | 110 | ||||||
| Newark | 69 | |||||||
| ADS1281IPWG4 | As of 10:18 AM GMT, 19 Nov 2008 | As of 10:18 AM GMT, 19 Nov 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 0* | 4440 | 17 Dec | 4 Weeks | None Reported View Distributors | |||||
| >10k | 22 Dec | ||||||||
| ADS1281IPWR | As of 10:18 AM GMT, 19 Nov 2008 | As of 10:18 AM GMT, 19 Nov 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 4000* | >10k | 22 Dec | 12 Weeks | Americas | DigiKey | >1k | |||
| Mouser Electronics | 178 | |||||||
| Rochester Electronics | >1k | |||||||
| ADS1281IPWRG4 | As of 10:18 AM GMT, 19 Nov 2008 | As of 10:18 AM GMT, 19 Nov 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 4000* | >10k | 22 Dec | 12 Weeks | None Reported View Distributors | |||||
* 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 |
| ADS1281IPW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| ADS1281IPWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| ADS1281IPWR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| ADS1281IPWRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | 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 |
| Alternative Products - Are similar to ADS1281 | |||
| Part # | Name | Comments | |
| ADS1282 | Ultra High Resolution Delta Sigma ADC with PGA for Seismic and Energy Exploration | The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 4 channel version of ADS1281. Has onboard PGA | |
| ADS1271 | 24-Bit, 105kSPS Industrial Delta-Sigma ADC | The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. Has a lower sampling rate | |
| ADS1274 | Quad, 128kHz, Simultaneous Sampling 24-Bit Delta Sigma ADC | The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 4 channel device. Lower sampling rate | |
| ADS1278 | Octal, 128kHz, Simultaneous Sampling 24-Bit Delta Sigma ADC | The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 8 channel device. Lower sampling rate | |
| Customers Who Evaluated This Product Also Evaluated... | |||
| ADS1282 | Ultra High Resolution Delta Sigma ADC with PGA for Seismic and Energy Exploration | TI customers also evaluated this product. | |
| ADS1271 | 24-Bit, 105kSPS Industrial Delta-Sigma ADC | TI customers also evaluated this product. | |
| ADS1274 | Quad, 128kHz, Simultaneous Sampling 24-Bit Delta Sigma ADC | TI customers also evaluated this product. | |
| ADS1278 | Octal, 128kHz, Simultaneous Sampling 24-Bit Delta Sigma ADC | TI customers also evaluated this product. | |
| ADS1672 | High Speed High Resolution 625kSPS 24 bit Delta Sigma ADC | TI customers also evaluated this product. | |
| ADS1255 | 24 Bit, 30kSPS Very Low Noise Delta-Sigma ADC | TI customers also evaluated this product. | |
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| ADS1258 | 24 Bit, Fast Channel Cycling Delta-Sigma ADC | TI customers also evaluated this product. | |
| ADS1256 | 24 Bit, 30kSPS Very Low Noise Delta-Sigma ADC with Multiplexer | TI customers also evaluated this product. | |
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