Datasheet Texas Instruments ADS7945 — Даташит
| Производитель | Texas Instruments |
| Серия | ADS7945 |
14-разрядный, двухканальный, униполярный, дифференциальный, 2MSPS, АЦП u-Power SAR
Datasheets
14-Bit, 2-MSPS, Dual-Channel, Differential/Single-Ended, Ultralow-Power ADCs datasheet
PDF, 1.3 Мб, Версия: B, Файл опубликован: 15 сен 2011
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Цены
 Купить ADS7945 на РадиоЛоцман.Цены — от 294 до 17 782 ₽34 предложений от 19 поставщиков АЦП, 14 бит, 2 Мвыборок/с, Дифференциальный, Последовательный, Однополярный, 2.7 В | |||
| ADS7945SRTER Texas Instruments | 294 ₽ | ||
| ADS7945SRTET Texas Instruments | 316 ₽ | ||
| ADS7945SRTET Texas Instruments | 362 ₽ | ||
| ADS7945SRTET Texas Instruments | по запросу | ||
Статус
| ADS7945SRTER | ADS7945SRTET | |
|---|---|---|
| Статус продукта | В производстве | В производстве |
| Доступность образцов у производителя | Нет | Да |
Корпус / Упаковка / Маркировка
| ADS7945SRTER | ADS7945SRTET | |
|---|---|---|
| N | 1 | 2 |
| Pin | 16 | 16 |
| Package Type | RTE | RTE |
| Industry STD Term | WQFN | WQFN |
| JEDEC Code | S-PQFP-N | S-PQFP-N |
| Package QTY | 3000 | 250 |
| Carrier | LARGE T&R | SMALL T&R |
| Маркировка | 7945 | 7945 |
| Width (мм) | 3 | 3 |
| Length (мм) | 3 | 3 |
| Thickness (мм) | .75 | .75 |
| Pitch (мм) | .5 | .5 |
| Max Height (мм) | .8 | .8 |
| Mechanical Data | Скачать | Скачать |
Параметры
| Parameters / Models | ADS7945SRTER | ADS7945SRTET |
|---|---|---|
| # Input Channels | 2 | 2 |
| Analog Voltage AVDD(Max), В | 5.25 | 5.25 |
| Analog Voltage AVDD(Min), В | 2.7 | 2.7 |
| Архитектура | SAR | SAR |
| Digital Supply(Max), В | 5.25 | 5.25 |
| Digital Supply(Min), В | 1.65 | 1.65 |
| INL(Max), +/-LSB | 1.5 | 1.5 |
| Input Range(Max), В | 5.25 | 5.25 |
| Тип входа | Differential | Differential |
| Integrated Features | N/A | N/A |
| Interface | SPI | SPI |
| Multi-Channel Configuration | Multiplexed | Multiplexed |
| Рабочий диапазон температур, C | от -40 до 125 | от -40 до 125 |
| Package Group | WQFN | WQFN |
| Package Size: mm2:W x L, PKG | 16WQFN: 9 mm2: 3 x 3(WQFN) | 16WQFN: 9 mm2: 3 x 3(WQFN) |
| Power Consumption(Typ), mW | 10.5 | 10.5 |
| Rating | Catalog | Catalog |
| Reference Mode | Ext | Ext |
| Разрешение, Bits | 14 | 14 |
| SINAD, дБ | 83.5 | 83.5 |
| SNR, дБ | 84 | 84 |
| Sample Rate (max), SPS | 2MSPS | 2MSPS |
| Sample Rate(Max), MSPS | 2 | 2 |
| THD(Typ), дБ | -92 | -92 |
Экологический статус
| ADS7945SRTER | ADS7945SRTET | |
|---|---|---|
| RoHS | Совместим | Совместим |
Application Notes
- Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A)PDF, 227 Кб, Версия: A, Файл опубликован: 10 ноя 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 Кб, Файл опубликован: 17 мар 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 Кб, Версия: A, Файл опубликован: 18 май 2015
- A Glossary of Analog-to-Digital Specifications and Performance Characteristics (Rev. B)PDF, 425 Кб, Версия: B, Файл опубликован: 9 окт 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 Кб, Версия: A, Файл опубликован: 16 апр 2015
Модельный ряд
Серия: ADS7945 (2)
Классификация производителя
- Semiconductors> Data Converters> Analog-to-Digital Converters (ADCs)> Precision ADCs (<=10MSPS)
