Overview
The AD5200BRM10-REEL7 is a 256-position digital potentiometer produced by Analog Devices Inc. This device performs the same electronic adjustment function as a mechanical potentiometer or variable resistor, offering a completely programmable resistance value. It is part of the AD5200 series, which includes devices with 10 kΩ and 50 kΩ fixed A-to-B terminal resistances. The AD5200BRM10-REEL7 is housed in a compact µSOIC-10 package and operates over a temperature range of -40°C to +85°C.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Positions | 256 |
| Fixed A-to-B Terminal Resistance | 10 kΩ |
| Temperature Coefficient | 500 ppm/°C |
| Supply Voltage Range (Single Supply) | 2.7 V to 5.5 V |
| Supply Voltage Range (Dual Supply) | ±2.3 V to ±2.7 V |
| Input Logic Low (VIL) | 0.6 V (VDD = 3 V, VSS = 0 V) |
| Input Current (IIL) | ±1 µA (VIN = 0 V or 5 V) |
| Input Capacitance (CIL) | 5 pF |
| Positive Supply Current (IDD) | 15 µA to 40 µA (VIH = +5 V or VIL = 0 V) |
| Negative Supply Current (ISS) | 15 µA to 40 µA (VSS = -5 V) |
| Power Dissipation (PDISS) | 0.2 mW (VIH = +5 V or VIL = 0 V, VDD = +5 V, VSS = 0 V) |
| Bandwidth (-3 dB) | 600 kHz (RAB = 10 kΩ, Code = 10H) |
Key Features
- Digital control through a 3-wire SPI serial interface.
- Internal power-on midscale preset.
- Shutdown feature that forces the resistor to an end-to-end open-circuit condition and shorts the wiper to the B terminal, achieving a microwatt power shutdown state.
- Compact µSOIC-10 package.
- Programmable resistance value between the A terminal and the wiper, or the B terminal and the wiper.
- Low power dissipation and supply current.
Applications
- Mechanical potentiometer replacement.
- Instrumentation: gain and offset adjustment.
- Programmable voltage-to-current conversion.
- Programmable filters, delays, and time constants.
- Line impedance matching.
Q & A
- What is the AD5200BRM10-REEL7 used for? The AD5200BRM10-REEL7 is used as a digital potentiometer, replacing mechanical potentiometers in various applications.
- How many positions does the AD5200BRM10-REEL7 have? The AD5200BRM10-REEL7 has 256 positions.
- What is the fixed A-to-B terminal resistance of the AD5200BRM10-REEL7? The fixed A-to-B terminal resistance is 10 kΩ.
- What is the temperature range of the AD5200BRM10-REEL7? The temperature range is -40°C to +85°C.
- How is the AD5200BRM10-REEL7 controlled? It is controlled through a 3-wire SPI serial interface.
- What is the shutdown feature of the AD5200BRM10-REEL7? The shutdown feature forces the resistor to an end-to-end open-circuit condition and shorts the wiper to the B terminal, achieving a microwatt power shutdown state.
- What are some common applications of the AD5200BRM10-REEL7? Common applications include mechanical potentiometer replacement, instrumentation, programmable voltage-to-current conversion, and line impedance matching.
- What is the package type of the AD5200BRM10-REEL7? The package type is µSOIC-10.
- What is the power dissipation of the AD5200BRM10-REEL7? The power dissipation is 0.2 mW under specified conditions.
- How does the internal preset work? The internal preset forces the wiper to the midscale position by loading 80H into the VR latch.
