AD5233BRU10: Nonvolatile, Quad, 64-Position Digital Potentiometer TSSOP-24封装
The AD5233 is a quad-channel nonvolatile memory,* digitally controlled potentiometer** with a 64-step resolution. The device performs the same electronic adjustment function as a mechanical potentiometer with enhanced resolution, solid-state reliability, and remote controllability. The AD5233 has versatile program-ming using a serial peripheral interface (SPI) for 16 modes of operation and adjustment, including scratchpad programming, memory storing and restoring, increment/decrement, ±6 dB/step log taper adjustment, wiper setting readback, and extra EEMEM for user-defined information such as memory data for other components, look-up tables, or system identification information.
In the scratchpad programming mode, a specific setting can be programmed directly to the RDAC register, which sets the resistance between Terminal W to Terminal A and Terminal W to Terminal B. This setting can be stored into the EEMEM and is transferred automatically to the RDAC register during system power-on.
The EEMEM content can be restored dynamically or through external PR strobing. A WP function protects EEMEM contents. To simplify the programming, independent or simultaneous increment or decrement commands can be used to move the RDAC wiper up or down, one step at a time. For logarithmic ±6 dB step changes in wiper settings, the left or right bit shift command can be used to double or halve the RDAC wiper setting.
The AD5233 is available in a thin 24-lead TSSOP package. The part is guaranteed to operate over the extended industrial temperature range of −40°C to +85°C
产品应用领域 Applications
- Mechanical potentiometer replacement
- Instrumentation: gain, offset adjustment
- Programmable voltage-to-current conversion
- Programmable filters, delays, time constants
- Programmable power supply
- Sensor calibration
AD5233BRU10 特点
- Nonvolatile Memory Preset Maintains Wiper Settings
- 4-channel independent programmable
- 64-position resolution
- Power-on refreshed with EEMEM settings
- EEMEM restore time: 140 μs typical
- Full monotonic operation
- 10 kΩ, 50 kΩ, and 100 kΩ terminal resistance
- See Data Sheet for Additional Information
AD5233BRU10 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD5233BRU10 | 量产 | 24 ld TSSOP | 24 | 工业 |
| AD5233BRUZ10 | 量产 | 24 ld TSSOP | 24 | 工业 |
| AD5233BRUZ10-R7 | 量产 | 24 ld TSSOP | 24 | 工业 |
| AD5233BRUZ100 | 量产 | 24 ld TSSOP | 24 | 工业 |
| AD5233BRUZ100-R7 | 量产 | 24 ld TSSOP | 24 | 工业 |
| AD5233BRUZ50 | 量产 | 24 ld TSSOP | 24 | 工业 |
| AD5233BRUZ50-R7 | 量产 | 24 ld TSSOP | 24 | 工业 |
