Datasheet Texas Instruments ADS1251
| Manufacturer | Texas Instruments |
| Series | ADS1251 |
24-Bit, 20kHz, Low Power Analog-to-Digital Converter
Datasheets
24-Bit, 20kHz, Low-Power Analog-to-Digital Converter datasheet
PDF, 895 Kb, Revision: D, File published: Jun 17, 2009
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Prices
Status
| ADS1251U | ADS1251U/2K5 | ADS1251U/2K5G4 | ADS1251UG4 | |
|---|---|---|---|---|
| Lifecycle Status | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes | No | No | Yes |
Packaging
| ADS1251U | ADS1251U/2K5 | ADS1251U/2K5G4 | ADS1251UG4 | |
|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 |
| Pin | 8 | 8 | 8 | 8 |
| Package Type | D | D | D | D |
| Industry STD Term | SOIC | SOIC | SOIC | SOIC |
| JEDEC Code | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G |
| Package QTY | 75 | 2500 | 2500 | 75 |
| Carrier | TUBE | LARGE T&R | LARGE T&R | TUBE |
| Device Marking | ADS | 1251U | 1251U | 1251U |
| Width (mm) | 3.91 | 3.91 | 3.91 | 3.91 |
| Length (mm) | 4.9 | 4.9 | 4.9 | 4.9 |
| Thickness (mm) | 1.58 | 1.58 | 1.58 | 1.58 |
| Pitch (mm) | 1.27 | 1.27 | 1.27 | 1.27 |
| Max Height (mm) | 1.75 | 1.75 | 1.75 | 1.75 |
| Mechanical Data | Download | Download | Download | Download |
Parametrics
| Parameters / Models | ADS1251U | ADS1251U/2K5 | ADS1251U/2K5G4 | ADS1251UG4 |
|---|---|---|---|---|
| # Input Channels | 1 | 1 | 1 | 1 |
| Analog Voltage AVDD(Max), V | 5.25 | 5.25 | 5.25 | 5.25 |
| Analog Voltage AVDD(Min), V | 4.75 | 4.75 | 4.75 | 4.75 |
| Architecture | Delta-Sigma | Delta-Sigma | Delta-Sigma | Delta-Sigma |
| Digital Supply(Max), V | 5.25 | 5.25 | 5.25 | 5.25 |
| Digital Supply(Min), V | 4.75 | 4.75 | 4.75 | 4.75 |
| INL(Max), +/-LSB | 251.7 | 251.7 | 251.7 | 251.7 |
| Input Range(Max), V | 5.25 | 5.25 | 5.25 | 5.25 |
| Input Type | Differential | Differential | Differential | Differential |
| Integrated Features | 50/60 Hz Rejection | 50/60 Hz Rejection | 50/60 Hz Rejection | 50/60 Hz Rejection |
| Interface | SPI | SPI | SPI | SPI |
| Multi-Channel Configuration | N/A | N/A | N/A | N/A |
| Operating Temperature Range, C | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 |
| Package Group | SOIC | SOIC | SOIC | SOIC |
| Package Size: mm2:W x L, PKG | 8SOIC: 29 mm2: 6 x 4.9(SOIC) | 8SOIC: 29 mm2: 6 x 4.9(SOIC) | 8SOIC: 29 mm2: 6 x 4.9(SOIC) | 8SOIC: 29 mm2: 6 x 4.9(SOIC) |
| Power Consumption(Typ), mW | 7.5 | 7.5 | 7.5 | 7.5 |
| Rating | Catalog | Catalog | Catalog | Catalog |
| Reference Mode | Ext | Ext | Ext | Ext |
| Resolution, Bits | 24 | 24 | 24 | 24 |
| Sample Rate (max), SPS | 20kSPS | 20kSPS | 20kSPS | 20kSPS |
| Sample Rate(Max), MSPS | 0.02 | 0.02 | 0.02 | 0.02 |
| THD(Typ), dB | -105 | -105 | -105 | -105 |
Eco Plan
| ADS1251U | ADS1251U/2K5 | ADS1251U/2K5G4 | ADS1251UG4 | |
|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant |
Application Notes
- Interfacing the ADS1251/52 to the MSP430PDF, 264 Kb, File published: Mar 8, 2005
This application report demonstrates an effective method to interface the ADS1251 and ADS1252 sigma-delta data converters to the MSP430F449 microcontroller. The software for this application report was developed on the HPA449 development system. - Operating multiple oversampling data convertersPDF, 192 Kb, File published: Oct 10, 2005
- Understanding the ADS1251, ADS1253, and ADS1254 Input CircuitryPDF, 39 Kb, File published: Dec 17, 2002
- A Spreadsheet for Calculating the Frequency Response of the ADS1250-54 (Rev. A)PDF, 461 Kb, Revision: A, File published: Sep 5, 2003
The ADS1250, ADS1251, ADS1252, ADS1253 and ADS1254 family of high-resolution analog-to-digital converters (ADCs) share an advanced delta-sigma (О”ОЈ) topology. This application note reviews the frequency characteristics of these devices and shows how to use a companion Microsoft Excel? spreadsheet (sbaa103a.zip), available for download from the TI web site, to calculate the frequency res - Analog-to-Digital Converter Grounding Practices Affect System Performance (Rev. A)PDF, 69 Kb, Revision: A, File published: May 18, 2015
- A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. B)PDF, 425 Kb, Revision: B, File published: Oct 9, 2011
This glossary is a collection of the definitions of Texas Instruments' Delta-Sigma (О”ОЈ), successive approximation register (SAR), and pipeline analog-to-digital (A/D) converter specifications and performance characteristics. Although there is a considerable amount of detail in this document, the product data sheet for a particular product specification is the best and final reference. - Principles of Data Acquisition and Conversion (Rev. A)PDF, 132 Kb, Revision: A, File published: Apr 16, 2015
Model Line
Series: ADS1251 (4)
Manufacturer's Classification
- Semiconductors> Data Converters> Analog-to-Digital Converters (ADCs)> Precision ADCs (<=10MSPS)
