Overview
The AD5272BRMZ-50-RL7, produced by Analog Devices Inc., is a single-channel digital rheostat that offers high-performance variable resistor functionality combined with nonvolatile memory. This device is part of the AD5272/AD5274 series, which features 1024-position or 256-position resolution, depending on the model. The AD5272BRMZ-50-RL7 specifically has a nominal resistance of 50 kΩ and a maximum ±1% nominal resistor tolerance error. It operates within a single-supply voltage range of 2.7 V to 5.5 V or a dual-supply range of ±2.5 V to ±2.75 V, making it versatile for various applications. The device is controlled through an I²C-compatible digital interface and includes 50-times programmable (50-TP) wiper memory, allowing for permanent programming without the need for an external voltage supply.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 1024 positions | - |
| Nominal Resistance | 50 kΩ | Ω |
| Nominal Resistor Tolerance Error | ±1% | % |
| Temperature Coefficient (Rheostat Mode) | 5 ppm/°C | ppm/°C |
| Supply Voltage (Single-Supply) | 2.7 V to 5.5 V | V |
| Supply Voltage (Dual-Supply) | ±2.5 V to ±2.75 V | V |
| Package Type | 10-Lead MSOP | - |
| Operating Temperature Range | −40°C to +125°C | °C |
| Wiper Memory | 50-TP (50 times programmable) | - |
| Interface | I²C-compatible | - |
Key Features
- Single-channel, 1024-position digital rheostat with high-resolution variable resistor performance.
- Maximum ±1% nominal resistor tolerance error, ensuring high accuracy.
- 50-times programmable (50-TP) wiper memory for permanent programming without external voltage supply.
- I²C-compatible digital interface for controlling wiper settings.
- Operating voltage range of 2.7 V to 5.5 V (single-supply) or ±2.5 V to ±2.75 V (dual-supply).
- Compact 10-lead MSOP package.
- Extended industrial temperature range of −40°C to +125°C.
- Low temperature coefficient of 5 ppm/°C in rheostat mode.
Applications
- Precision calibration and tolerance matching applications.
- Open-loop applications requiring high accuracy and stability.
- Automotive and industrial control systems where precise resistance settings are crucial.
- Aerospace and defense applications requiring reliable and accurate variable resistors.
- Medical devices and diagnostic equipment that demand high precision and reliability.
Q & A
- What is the nominal resistance of the AD5272BRMZ-50-RL7?
The nominal resistance of the AD5272BRMZ-50-RL7 is 50 kΩ.
- What is the maximum nominal resistor tolerance error of the AD5272BRMZ-50-RL7?
The maximum nominal resistor tolerance error is ±1%.
- What type of interface does the AD5272BRMZ-50-RL7 use?
The device uses an I²C-compatible digital interface.
- How many times can the wiper memory be programmed?
The wiper memory can be programmed 50 times (50-TP).
- What is the operating temperature range of the AD5272BRMZ-50-RL7?
The operating temperature range is −40°C to +125°C.
- Does the AD5272BRMZ-50-RL7 require an external voltage supply for fuse blow?
No, it does not require an external voltage supply for fuse blow.
- What is the package type of the AD5272BRMZ-50-RL7?
The package type is a 10-lead MSOP.
- What is the temperature coefficient of the AD5272BRMZ-50-RL7 in rheostat mode?
The temperature coefficient is 5 ppm/°C.
- Can the AD5272BRMZ-50-RL7 be used in dual-supply configurations?
- What are some common applications of the AD5272BRMZ-50-RL7?
Common applications include precision calibration, open-loop applications, automotive and industrial control systems, aerospace and defense, and medical devices.
