Overview
The AD5174 is a single-channel, 1024-position digital rheostat produced by Analog Devices. It combines industry-leading variable resistor performance with nonvolatile memory (NVM) in a compact package. This device is designed for precise control and offers a wide range of applications due to its versatile operating conditions and digital interface.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Positions | 1024 | |
| Nominal Resistance | 10 kΩ | |
| Supply Voltage (Single-Supply) | 2.7 V to 5.5 V | |
| Supply Voltage (Dual-Supply) | ±2.5 V to ±2.75 V | |
| Temperature Coefficient | 35 ppm/°C | |
| Operating Temperature Range | −40°C to +125°C | |
| Package Types | 10-lead LFCSP, 10-lead MSOP | |
| Memory Type | 50-times programmable (50-TP) nonvolatile memory |
Key Features
- Single-channel, 1024-position digital rheostat with SPI-compatible interface.
- Nonvolatile memory (NVM) for retaining wiper settings.
- 50-times programmable (50-TP) memory for permanent resistance settings.
- Wide supply voltage range: 2.7 V to 5.5 V single-supply and ±2.5 V to ±2.75 V dual-supply.
- Compact packages: 10-lead LFCSP and 10-lead MSOP.
- Operating temperature range from −40°C to +125°C.
- Precise control with a typical temperature coefficient of 35 ppm/°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 AD5174?
The AD5174 is a single-channel, 1024-position digital rheostat with nonvolatile memory and an SPI interface. - What are the supply voltage ranges for the AD5174?
The AD5174 operates with a single-supply voltage of 2.7 V to 5.5 V and a dual-supply voltage of ±2.5 V to ±2.75 V. - What is the temperature coefficient of the AD5174?
The temperature coefficient of the AD5174 is 35 ppm/°C. - What types of packages are available for the AD5174?
The AD5174 is available in 10-lead LFCSP and 10-lead MSOP packages. - What is the operating temperature range of the AD5174?
The operating temperature range is from −40°C to +125°C. - How many times can the AD5174's memory be programmed?
The AD5174 has 50-times programmable (50-TP) nonvolatile memory. - What interface does the AD5174 use for control?
The AD5174 uses an SPI-compatible interface for control. - What are some common applications of the AD5174?
Common applications include mechanical rheostat replacements, op-amp variable gain control, instrumentation adjustments, and programmable voltage-to-current conversions. - Does the AD5174 require an external voltage supply for memory programming?
No, the AD5174 does not require an external voltage supply to facilitate fuse blow for memory programming. - How does the AD5174 retain its settings after power-off?
The AD5174 retains its settings through its nonvolatile memory (NVM).
