Datasheet Texas Instruments ADS7945SRTER — Datenblatt
| Hersteller | Texas Instruments |
| Serie | ADS7945 |
| Artikelnummer | ADS7945SRTER |
14-Bit-, 2MSPS-, zweikanaliger, unipolarer, differenzieller SAR-ADC mit U-Leistung 16-WQFN -40 bis 125
Datenblätter
14-Bit, 2-MSPS, Dual-Channel, Differential/Single-Ended, Ultralow-Power ADCs datasheet
PDF, 1.3 Mb, Revision: B, Datei veröffentlicht: Sep 15, 2011
Auszug aus dem Dokument
Preise
Status
| Lifecycle Status | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes |
Verpackung
| Pin | 16 |
| Package Type | RTE |
| Industry STD Term | WQFN |
| JEDEC Code | S-PQFP-N |
| Package QTY | 3000 |
| Carrier | LARGE T&R |
| Device Marking | 7945 |
| Width (mm) | 3 |
| Length (mm) | 3 |
| Thickness (mm) | .75 |
| Pitch (mm) | .5 |
| Max Height (mm) | .8 |
| Mechanical Data | Herunterladen |
Parameter
| # Input Channels | 2 |
| Analog Voltage AVDD(Max) | 5.25 V |
| Analog Voltage AVDD(Min) | 2.7 V |
| Architecture | SAR |
| Digital Supply(Max) | 5.25 V |
| Digital Supply(Min) | 1.65 V |
| INL(Max) | 1.5 +/-LSB |
| Input Range(Max) | 5.25 V |
| Input Type | Differential |
| Integrated Features | N/A |
| Interface | SPI |
| Multi-Channel Configuration | Multiplexed |
| Operating Temperature Range | -40 to 125 C |
| Package Group | WQFN |
| Package Size: mm2:W x L | 16WQFN: 9 mm2: 3 x 3(WQFN) PKG |
| Power Consumption(Typ) | 10.5 mW |
| Rating | Catalog |
| Reference Mode | Ext |
| Resolution | 14 Bits |
| SINAD | 83.5 dB |
| SNR | 84 dB |
| Sample Rate (max) | 2MSPS SPS |
| Sample Rate(Max) | 2 MSPS |
| THD(Typ) | -92 dB |
Öko-Plan
| RoHS | Compliant |
Design Kits und Evaluierungsmodule
- Evaluation Modules & Boards: ADS7945EVM-PDK
ADS7945 Performance Demonstration Kit
Lifecycle Status: Active (Recommended for new designs)
Anwendungshinweise
- Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A)PDF, 227 Kb, Revision: A, Datei veröffentlicht: Nov 10, 2010
This application report analyzes a simple method for calculating minimum acquisition times for successive-approximation register analog-to-digital converters (SAR ADCs). The input structure of the ADC is examined along with the driving circuit. The voltage on the sampling capacitor is then determined for the case when a step function is applied to the input of the driving circuit. Three different - Determining Minimum Acquisition Times for SAR ADCs, part 2PDF, 215 Kb, Datei veröffentlicht: Mar 17, 2011
The input structure circuit of a successive-approximation register analog-to-digital converter (SAR ADC) incombination with the driving circuit forms a transfer function that can be used to determine minimum acquisition times for different types of applied input signals. This application report, which builds on Determining Minimum Acquisition Times for SAR ADCs When a Step Function is Applied to - Analog-to-Digital Converter Grounding Practices Affect System Performance (Rev. A)PDF, 69 Kb, Revision: A, Datei veröffentlicht: May 18, 2015
- A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. B)PDF, 425 Kb, Revision: B, Datei veröffentlicht: 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, Datei veröffentlicht: Apr 16, 2015
Modellreihe
Serie: ADS7945 (2)
- ADS7945SRTER ADS7945SRTET
Herstellerklassifikation
- Semiconductors > Data Converters > Analog-to-Digital Converters (ADCs) > Precision ADCs (<=10MSPS)