AD5227: 64-Position Digital Up/Down Control Potentiometer
AD5227 is Analog Devices latest 64-Step Up/Down Control Digital Potentiometer1. This device performs the same electronic adjustment function as a 5 V potentiometer or variable resistor. ...More
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AD5227: 64-Position Digital Up/Down Control Potentiometer
Product Description
AD5227 is Analog Devices latest 64-Step Up/Down Control Digital Potentiometer1. This device performs the same electronic adjustment function as a 5 V potentiometer or variable resistor. Its common 3-wire up/down interface allows high-speed as well as low-speed digital controls. AD5227 presets to mid-scale in power up. When CS is enabled, the Up/Down direction is depended on the state of U/D and it executes at every clock pulse.
The interface is simple that can be controlled by any host controllers, discrete logics, and manually with rotary encoder or push buttons. AD5227 adequate resolution, small footprint, and simple interface enable it to be the potential replacements of mechanical potentiometers and trimmers with typically 6X improved resolution, solid-state reliability, and design layout flexibility. These enhancements can result in considerable cost saving in end users’ systems.
The AD5227 is available in compact thin SOT23-8 package. All parts are guaranteed to operate over the extended industrial temperature range of -40°C to +125°C.
Applications
1The term digital potentiometer and RDAC are used interchangeably.
- Data Sheet Rev 0, 04/2004 (pdf 331kB)
- (About Data Sheets)
Features
- 64-Position
- 10 kO, 50 kO, 100 kO End-to-End Terminal Resistance
- Simple Up/Down Digital or Manual Configurable Control
- Mid-Scale Preset
- Low Potentiometer Mode TC 10 ppm/ºC
- Low Rheostat Mode TC 35ppm/ºC
- Ultra low power, IDD = 5 µA Max
- Fast Adjustment Time, ts = 1 µs
- Chip Select Enable Multi-Devices
Operation - Low Operating Voltage, 2.7 V
to 5.5 V - Automotive Temperature Range
-40ºC to +125ºC - Compact Thin 8-lead TSOT-8
(2.9 mm × 2.8 mm) Package
| 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 |