Overview
The AD5274BRMZ-100-RL7 is a single-channel, 256-position digital rheostat produced by Analog Devices Inc. This device combines industry-leading variable resistor performance with nonvolatile memory (NVM) in a compact package. It is part of the AD5272/AD5274 series, which offers high precision and reliability, making it suitable for a variety of applications requiring precise resistance control.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 256 positions | |
| Nominal Resistance | 100 kΩ | |
| Nominal Resistor Tolerance Error | ±1% | |
| Temperature Coefficient (Rheostat Mode) | 5 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 |
| Interface | I²C-compatible | |
| Package Type | 10-Lead MSOP | |
| Operating Temperature Range | −40°C to +125°C | °C |
Key Features
- Single-channel, 256-position digital rheostat with high precision and low resistor tolerance error.
- 50-times programmable (50-TP) wiper memory for permanent resistance setting.
- I²C-compatible digital interface for easy control and readback of wiper settings.
- Compact 10-lead MSOP package, ideal for space-constrained applications.
- Extended industrial temperature range of −40°C to +125°C.
- No external voltage supply required for fuse blow and permanent programming.
Applications
- Precision calibration and tolerance matching applications.
- Open-loop applications requiring high accuracy and stability.
- Automotive and industrial control systems where precise resistance control is necessary.
- Medical devices and equipment requiring stable and accurate resistance settings.
- Aerospace and defense applications where reliability and precision are critical.
Q & A
- What is the resolution of the AD5274BRMZ-100-RL7?
The AD5274BRMZ-100-RL7 has a resolution of 256 positions.
- What is the nominal resistance of the AD5274BRMZ-100-RL7?
The nominal resistance is 100 kΩ.
- What is the temperature coefficient of the AD5274BRMZ-100-RL7 in rheostat mode?
The temperature coefficient is 5 ppm/°C.
- What is the supply voltage range for the AD5274BRMZ-100-RL7?
The device operates on a single-supply voltage of 2.7 V to 5.5 V or a dual-supply voltage of ±2.5 V to ±2.75 V.
- What type of interface does the AD5274BRMZ-100-RL7 use?
The device uses an I²C-compatible digital interface.
- What is the package type of the AD5274BRMZ-100-RL7?
The device is packaged in a 10-lead MSOP package.
- What is the operating temperature range of the AD5274BRMZ-100-RL7?
The operating temperature range is −40°C to +125°C.
- Does the AD5274BRMZ-100-RL7 require an external voltage supply for fuse blow and permanent programming?
No, it does not require an external voltage supply for these operations.
- How many times can the wiper position be programmed permanently?
The wiper position can be programmed permanently up to 50 times.
- What are some common applications of the AD5274BRMZ-100-RL7?
Common applications include precision calibration, open-loop systems, automotive and industrial control, medical devices, and aerospace and defense.
