Analog Devices Inc. AD512x/514x 非易失性数字电位计
Analog Devices AD512x/AD514x 数字电位计提供了针对128-/256-位调整应用的非易失性解决方案，保证±8%的低电阻容差误差，±A、B和W引脚之间的电流密度可达6mA。低电阻容差和低标称温度系数简化了开环应用和需要容差匹配的应用。线性增益设置模式允许对数字电位计端子RAW和RWB之间的电阻独立编程，使电阻匹配非常精确。 宽带宽和低总谐波失真(THD)确保对于交流信号具有最佳性能，适合于滤波器设计。在电阻阵列末端的低游标电阻仅40Ω，允许进行引脚到引脚连接。
The linear gain setting mode allows independent programming of the resistance between the digital potentiometer terminals, RAW and RWB, allowing very accurate resistor matching. The high bandwidth and low total harmonic distortion (THD) ensure an optimal performance for ac signals, making these ADI digi POTs suitable for filter design. The low wiper resistance at the ends of the resistor array of only 40Ω, allowing pin-to-pin connection.
特性
- 10kΩ and 100kΩ resistance options
- 8% Maximum resistor tolerance
- ±6mA Wiper current
- 35ppm/°C Low temperature coefficient
- 3MHz Wide bandwidth
- <75μs Fast start-up time
- Linear gain setting mode
- Single- and dual-supply operation
- -40°C to +125°C Wide operating temperature
- 3mm × 3mm package
- 4kV ESD protection
应用
- Portable electronics level adjustment
- LCD panel brightness and contrast controls
- Programmable filters, delays, and time constants
- Programmable power supplies
Block Diagrams
发布日期: 2013-04-17
| 更新日期: 2022-03-11