Overview
The AD5272BRMZ-100, produced by Analog Devices Inc., is a single-channel digital rheostat that combines industry-leading variable resistor performance with nonvolatile memory (NVM) in a compact package. This device is part of the AD5272/AD5274 series, offering 1024-position resolution and a nominal resistance of 100 kΩ. It features a maximum ±1% nominal resistor tolerance error and a rheostat mode temperature coefficient of 5 ppm/°C. The device operates on a single supply from 2.7 V to 5.5 V or a dual supply from ±2.5 V to ±2.75 V, making it versatile for various applications. The AD5272BRMZ-100 is available in a 10-lead MSOP package and is guaranteed to operate over the extended industrial temperature range of −40°C to +125°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 1024 positions | - |
| Nominal Resistance | 100 kΩ | kΩ |
| Nominal Resistor Tolerance Error | ±1% | % |
| Temperature Coefficient | 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 |
| Interface | I2C-compatible | - |
| 50-TP Memory | 50-times programmable | - |
Key Features
- Single-channel, 1024-position digital rheostat with nonvolatile memory (NVM).
- Low nominal resistor tolerance error of ±1% and a temperature coefficient of 5 ppm/°C.
- Operates on a single supply from 2.7 V to 5.5 V or a dual supply from ±2.5 V to ±2.75 V.
- I2C-compatible interface for wiper setting control and readback.
- 50-times programmable (50-TP) wiper memory without requiring an external voltage supply.
- Compact 10-lead MSOP package with dimensions of 3 mm × 4.9 mm × 1.1 mm.
- Guaranteed operation over the extended industrial temperature range of −40°C to +125°C.
Applications
- Mechanical rheostat replacements.
- Op-amp: variable gain control.
- Instrumentation: gain, offset adjustment.
- Programmable voltage to current conversions.
- Programmable filters, delays, time constants.
- Programmable power supply.
- Sensor calibration).
Q & A
- What is the resolution of the AD5272BRMZ-100?
The AD5272BRMZ-100 has a resolution of 1024 positions.
- What is the nominal resistance of the AD5272BRMZ-100?
The nominal resistance is 100 kΩ.
- What is the temperature coefficient of the AD5272BRMZ-100?
The temperature coefficient is 5 ppm/°C.
- What is the operating voltage range of the AD5272BRMZ-100?
The device operates on a single supply from 2.7 V to 5.5 V or a dual supply from ±2.5 V to ±2.75 V.
- What type of interface does the AD5272BRMZ-100 use?
The device uses an I2C-compatible interface.
- Does the AD5272BRMZ-100 have nonvolatile memory?
Yes, it has 50-times programmable (50-TP) nonvolatile memory.
- What is the package type of the AD5272BRMZ-100?
The device is available in a 10-lead MSOP package.
- What is the operating temperature range of the AD5272BRMZ-100?
The device operates over the extended industrial temperature range of −40°C to +125°C.
- What are some common applications of the AD5272BRMZ-100?
Common applications include mechanical rheostat replacements, op-amp variable gain control, instrumentation, programmable voltage to current conversions, programmable filters, and sensor calibration.
- Does the AD5272BRMZ-100 require an external voltage supply for programming the 50-TP memory?
No, it does not require an external voltage supply for programming the 50-TP memory.
