Thông số kỹ thuật
| thuộc tính | Giá trị |
| Supplier | Analog Devices Inc. |
| Package | Tube |
| ProductStatus | Active |
| Taper | Linear |
| Configuration | Potentiometer |
| NumberofCircuits | 1 |
| NumberofTaps | 64 |
| Resistance(Ohms) | 1k |
| Interface | I²C |
| MemoryType | Non-Volatile |
| Voltage-Supply | 2.7V ~ 5.5V |
| Features | Selectable Address |
| Tolerance | ±30% |
| TemperatureCoefficient(Typ) | 200ppm/°C |
| MountingType | Surface Mount |
| SupplierDevicePackage | 10-MSOP |
| Package/Case | 10-TFSOP, 10-MSOP (0.118, 3.00mm Width) |
| OperatingTemperature | -40°C ~ 85°C |
Tổng quan
Description
AD5258BRMZ1 is an Analog Devices 8-channel digital potentiometer (digipot) with an I2C interface. It provides eight independently programmable potentiometer sections, each with a 256-step wiper across its end-to-end resistance (RAB). The device supports volatile wiper registers and, in many variants, nonvolatile memory to retain programmed positions across power cycles. It operates from a single low-voltage supply and is suitable for applications requiring programmable gain/attenuation, calibration, or sensor-offset adjustments in analog signal paths. The AD5258 is packaged in a RoHS-compliant package (BRMZ1 designation) and designed for easy integration with microcontrollers or digital systems via I2C. To use, select a channel and write the desired 8-bit wiper value (0–255) to set the attenuation or gain for that channel; multiple channels can be configured independently.
Features
AD5258BRMZ1 features (concise):
- 8-channel, I2C-controlled digital potentiometer with independent wipers
- 256-step (8-bit) wiper resolution per channel
- End-to-end resistance options per device variant; supports potentiometer and rheostat modes
- Up to 8 selectable I2C addresses for multiple‑device setups
- I2C interface with standard and fast-mode speeds
- Low power consumption with possible standby/shutdown modes
- Wide operating voltage range
- Industrial temperature range (approx. -40°C to +125°C)
- 8-pin RoHS-compliant package (MSOP8/TSSOP8) with ESD protection
Note: exact end-to-end resistance values and temperature ranges may vary by variant; refer to the datasheet for precise specs.
- 8-channel, I2C-controlled digital potentiometer with independent wipers
- 256-step (8-bit) wiper resolution per channel
- End-to-end resistance options per device variant; supports potentiometer and rheostat modes
- Up to 8 selectable I2C addresses for multiple‑device setups
- I2C interface with standard and fast-mode speeds
- Low power consumption with possible standby/shutdown modes
- Wide operating voltage range
- Industrial temperature range (approx. -40°C to +125°C)
- 8-pin RoHS-compliant package (MSOP8/TSSOP8) with ESD protection
Note: exact end-to-end resistance values and temperature ranges may vary by variant; refer to the datasheet for precise specs.
Pinout
- Pin count: 8 pins (MSOP-8/SOIC-8 in BRMZ1 package).
- Function: Digital potentiometer (dual pot) with a serial control interface used for trimming/calibration of analog circuits.
- Function: Digital potentiometer (dual pot) with a serial control interface used for trimming/calibration of analog circuits.
Manufacturer
- Manufacturer: Analog Devices, Inc. (Analog Devices).
- What kind of company: A multinational American semiconductor company that designs and manufactures analog, mixed-signal, and DSP integrated circuits, sensors, and related signal-processing solutions for industrial, automotive, communications, and consumer markets.
- What kind of company: A multinational American semiconductor company that designs and manufactures analog, mixed-signal, and DSP integrated circuits, sensors, and related signal-processing solutions for industrial, automotive, communications, and consumer markets.
Application
AD5258BRMZ1 is an 8-channel I2C digital potentiometer. Typical application areas include:
- Multi-channel programmable attenuation/gain for analog front-ends
- Sensor calibration and offset trimming (thermocouples, RTDs, bridges)
- Programmable feedback networks for op-amps and active filters
- Reference/DAC/ADC calibration networks
- Remote-controlled volume, tone, or attenuator control in audio/telecom gear
- Instrumentation, test, and medical equipment requiring adjustable resistance networks
- Automotive/industrial control where remote, software-controlled resistance is needed
Note: Uses I2C interface and provides multiple independent potentiometer channels.
- Multi-channel programmable attenuation/gain for analog front-ends
- Sensor calibration and offset trimming (thermocouples, RTDs, bridges)
- Programmable feedback networks for op-amps and active filters
- Reference/DAC/ADC calibration networks
- Remote-controlled volume, tone, or attenuator control in audio/telecom gear
- Instrumentation, test, and medical equipment requiring adjustable resistance networks
- Automotive/industrial control where remote, software-controlled resistance is needed
Note: Uses I2C interface and provides multiple independent potentiometer channels.
Package
8-lead MSOP package (MSOP-8), RoHS-compliant.
