AD5247: 128-Position I2C®-Compatible Digital Potentiometer
The AD5247 provides a compact, 2 mm × 2.1 mm, packaged solution for 128-position adjustment applications. This device performs the same electronic adjustment function as a mechanical potentiometer or ...More
AD5247: 128-Position I2C®-Compatible Digital Potentiometer
Product Description
The AD5247 provides a compact, 2 mm × 2.1 mm, packaged solution for 128-position adjustment applications. This device performs the same electronic adjustment function as a mechanical potentiometer or a variable resistor. Available in four different end-to-end resistance values (5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ), these low temperature coefficient devices are ideal for high accuracy and stability variable resistance adjustments.
The wiper settings are controllable through the I2C-compatible digital interface, which can also be used to read back the present wiper register control word. The 10 kΩ and 100 kΩ options each have three hard-coded slave address options available to allow users access to three of these devices on one I2C bus (see Data Sheet Table 8 for a full list of slave address locations).
The resistance between the wiper and either end point of the fixed resistor varies linearly with respect to the digital code transferred into the RDAC latch. Note the terms digital potentiometer, VR (variable resistor), and RDAC are used interchangeably in this document.
Operating from a 2.7 V to 5.5 V power supply and consuming 3 μA allows the AD5247 to be used in portable battery-operated applications.
Applications
- Mechanical potentiometer replacement in new designs
- Transducer adjustment of pressure, temperature, position, chemical, and optical sensors
- RF amplifier-biasing
- LCD brightness and contrast adjustment
- Automotive electronics adjustment
- Gain control and offset adjustment
Data Sheet, Rev. B, 3/07
Features
- 128 positions
- End-to-end resistance: 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ
- Ultracompact, SC70-6 (2 mm × 2.1 mm) package
- I2C-compatible interface
- Full read/write of wiper register
- Power-on preset to midscale
- Single-supply 2.7 V to 5.5 V
- Low temperature coefficient: 45 ppm/°C
- Low power, IDD = 3 μA typical
- Wide operating temperature range: –40°C to +125°C
- Available in Pb–free package
- Evaluation board available
Diagrams
- Enlarge
- Другие диаграммы
- Обозначения и трафареты для печатной платы
Functional Block Diagram for AD5247
128-Position I2C®-Compatible Digital Potentiometer
Другие диаграммы для AD5247
128-Position I2C®-Compatible Digital Potentiometer
Pin Configuration
Potentiometer Divider Nonlin Error
Resistor Position Nonlinearity Error
Wiper Resistance
Power Supply Sensitivity
Gain vs. Frequency
Functional Block Diagram for AD5247
| Part# | # Channels | # Positions | Memory Type | Interface | Resistor Values (kOhms) | Bipolar Voltage Range (V) | Voltage Range (V) | Supply Current (max) | Temp. Range -40 °C to.. | Absolute Tempco (ppm/°C) | Price* (1000-4999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ADN2860 | 3 | 512 | Non-Volatile | I2C | 25, 250 | ±2.75 | - | 10µA | 85 | 15 | $5.97 |
| AD5228 | 1 | 32 | Volatile | Pushbutton | 10, 50, 100 | - | +5.5 | 0.4µA | 105 | 35 | $0.34 |
| AD5201 | 1 | 33 | Volatile | SPI | 10, 50 | ±3 | +5.5 | 15µA | 85 | 500 | $0.50 |
| AD5227 | 1 | 64 | Volatile | Up/Down | 10, 50, 100 | - | +5.5 | 0.4µA | 105 | 35 | $0.36 |
| AD5246 | 1 | 128 | Volatile | I2C | 5, 10, 50, 100 | - | +5.5 | 3µA | 125 | 35 | $0.45 |
| AD5247 | 1 | 128 | Volatile | I2C | 5, 10, 50, 100 | - | +5.5 | 3µA | 125 | 35 | $0.45 |
| AD5220 | 1 | 128 | Volatile | Up/Down | 10, 50, 100 | - | +5.5 | 15µA | 85 | 800 | $0.90 |
| AD7376 | 1 | 128 | Volatile | SPI | 10, 50, 100, 1M | ±15 | +28 | 10µA | 85 | 35 | $2.86 |
| AD5160 | 1 | 256 | Volatile | SPI | 5, 10, 50, 100 | - | +5.5 | 3µA | 125 | 35 | $0.64 |
| AD5165 | 1 | 256 | Volatile | SPI | 100 | - | +5.5 | 0.05µA | 125 | 35 | $0.58 |
| AD5245 | 1 | 256 | Volatile | I2C | 5, 10, 50, 100 | - | +5.5 | 3µA | 125 | 35 | $0.64 |
| AD5161 | 1 | 256 | Volatile | I2C, SPI | 5, 10, 50, 100 | - | +5.5 | 3µA | 125 | 35 | $0.65 |
| AD5241 | 1 | 256 | Volatile | I2C | 10, 100, 1M | ±3 | +5.5 | 0.1µA | 105 | 30 | $0.93 |
| AD5200 | 1 | 256 | Volatile | SPI | 10, 50 | ±3 | +5.5 | 15µA | 85 | 500 | $0.89 |
| AD8400 | 1 | 256 | Volatile | SPI | 1, 10, 50, 100 | - | +5.5 | 0.01µA | 125 | 500 | $1.13 |
| AD5260 | 1 | 256 | Volatile | SPI | 20, 50, 200 | ±5 | +15 | 0.1µA | 85 | 35 | $1.80 |
| AD5280 | 1 | 256 | Volatile | I2C | 20, 50, 200 | ±5 | +15 | 0.1µA | 85 | 35 | $1.80 |
| AD5290 | 1 | 256 | Volatile | SPI | 10, 50, 100 | ±15 | +30 | 10µA | 105 | 35 | $1.97 |
| AD5222 | 2 | 128 | Volatile | Up/Down | 10, 50, 100, 1M | ±3 | +5.5 | 15µA | 85 | 35 | $0.80 |
| AD5243 | 2 | 256 | Volatile | I2C | 2.5, 10, 50, 100 | - | +5.5 | 3.5µA | 125 | 35 | $1.00 |
| AD5162 | 2 | 256 | Volatile | SPI | 2.5, 10, 50, 100 | - | +5.5 | 3.5µA | 125 | 35 | $1.00 |
| AD5248 | 2 | 256 | Volatile | I2C | 2.5, 10, 50, 100 | - | +5.5 | 3.5µA | 125 | 35 | $1.00 |
| AD5207 | 2 | 256 | Volatile | SPI | 10, 50, 100 | ±3 | +5.5 | 40µA | 125 | 500 | $1.06 |
| AD8402 | 2 | 256 | Volatile | SPI | 1, 10, 50, 100 | - | +5.5 | 0.01µA | 125 | 500 | $1.68 |
| AD5242 | 2 | 256 | Volatile | I2C | 10, 100, 1M | ±3 | +5.5 | 0.1µA | 105 | 30 | $1.27 |
| AD5262 | 2 | 256 | Volatile | SPI | 20, 50, 200 | ±5 | +15 | 0.1µA | 85 | 35 | $1.97 |
| AD5282 | 2 | 256 | Volatile | I2C | 20, 50, 200 | ±5 | +15 | 0.1µA | 85 | 35 | $1.97 |
| AD5203 | 4 | 64 | Volatile | SPI | 10, 100 | - | +5.5 | 0.01µA | 85 | 700 | $1.47 |
| AD5204 | 4 | 256 | Volatile | SPI | 10, 50, 100 | ±3 | +5.5 | 12µA | 85 | 700 | $1.52 |
| AD8403 | 4 | 256 | Volatile | SPI | 1, 10, 50, 100 | - | +5.5 | 0.01µA | 125 | 500 | $2.79 |
| AD5263 | 4 | 256 | Volatile | I2C, SPI | 20, 50, 200 | ±5 | +15 | 1µA | 125 | 30 | $2.58 |
| AD5206 | 6 | 256 | Volatile | SPI | 10, 50, 100 | ±3 | +5.5 | 12µA | 85 | 700 | $1.94 |
| AD5273 | 1 | 64 | One Time Programmable | I2C | 1, 10, 50, 100 | - | +5.5 | 0.1µA | 105 | 300 | $0.69 |
| AD5171 | 1 | 64 | One Time Programmable | I2C | 5, 10, 50, 100 | - | +5.5 | 4µA | 125 | 35 | $0.72 |
| AD5170 | 1 | 256 | One Time Programmable | I2C | 2.5, 10, 50, 100 | - | +5.5 | 3.5µA | 125 | 35 | $1.00 |
| AD5172 | 2 | 256 | One Time Programmable | I2C | 2.5, 10, 50, 100 | - | +5.5 | 3.5µA | 125 | 35 | $1.32 |
| AD5173 | 2 | 256 | One Time Programmable | I2C | 2.5, 10, 50, 100 | - | +5.5 | 3.5µA | 125 | 35 | $1.32 |
| AD5258 | 1 | 64 | Non-Volatile | I2C | 1, 10, 50, 100 | - | +5.5 | 4µA | 85 | 300 | $0.59 |
| AD5259 | 1 | 256 | Non-Volatile | I2C | 5, 10, 50, 100 | n/a | +5.5 | 3µA | 85 | 300 | $0.90 |
| AD5231 | 1 | 1,024 | Non-Volatile | SPI | 10, 50, 100 | ±3 | +5.5 | 2.7µA | 85 | 600 | $1.97 |
| AD5251 | 2 | 64 | Non-Volatile | I2C | 1, 10, 50, 100 | ±3 | +5.5 | 3µA | 85 | 600 | $1.97 |
| AD5252 | 2 | 256 | Non-Volatile | I2C | 1, 10, 50, 100 | ±3 | +5.5 | 3µA | 85 | 300 | $1.61 |
| AD5232 | 2 | 256 | Non-Volatile | SPI | 10, 50, 100 | ±3 | +5.5 | 3.5µA | 85 | 300 | $2.40 |
| AD5235 | 2 | 1,024 | Non-Volatile | SPI | 25, 250 | ±3 | +5.5 | 3.5µA | 85 | 35 | $3.52 |
| ADN2850 | 2 | 1,024 | Non-Volatile | SPI | 25, 250 | ±3 | +5.5 | 3.5µA | 85 | 35 | $3.52 |
| AD5255 | 3 | 512 | Non-Volatile | I2C | 25, 250 | ±3 | +5.5 | 3.5µA | 85 | 35 | $5.15 |
| AD5233 | 4 | 64 | Non-Volatile | SPI | 10, 50, 100 | ±3 | +5.5 | 3.5µA | 85 | 600 | $2.50 |
| AD5253 | 4 | 64 | Non-Volatile | I2C | 1, 10, 50, 100 | ±3 | +5.5 | 3µA | 85 | 300 | $2.49 |
| AD5254 | 4 | 256 | Non-Volatile | I2C | 1, 10, 50, 100 | ±3 | +5.5 | 3µA | 85 | 300 | $2.58 |
* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S.
Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.
AD5247 Model Options
Help
- "Pre-Release": модель микросхемы еще не запущена в серийное производство, однако можно получить образцы.
- Производство: модель производится, доступна для покупки и заказа образцов.
- Завершение продаж: запланировано снятие модели микросхемы с производства, но в течение некоторого ограниченного времени покупка еще возможна.
- Снято с производства: Микросхема снята с производства и не доступна для приобретения. Другие варианты, указанные в таблице, все еще производятся (если их статус любой, кроме "снято с производства")
Для более подробного описания корпуса и материалов - см. Package Site
- Коммерческое исполнение: 0…70°С
- Военное исполнение: от -55 до +125 градусов по Цельсию
- Индустриальное исполнение: диапазоны рабочих температур могут быть разные у разных моделей. См. техническое описание (datasheet)
- Automotive: -40 to +125 °С
Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.
*Приведенные цены действительны в США и указаны только для примерного бюджетного рассчета. Цены указаны в долларах США (за штуку в указанном размере партии) и могут быть изменены. Цены в других регионах могут отличаться в зависимости от местных пошлин, налогов, сборов и курсов валют. Для уточнения стоимости обращайтесь в местные офисы продаж Analog Devices, или к официальным дистрибьюторам. Цены на оценочные платы и наборы указаны за штуку независимо от количества.
**Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.


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