規格
| 屬性 | 價值 |
| Supplier | Rochester Electronics, LLC,Analog Devices Inc. |
| Package / Case | Bulk,Tube |
| Part Status | Active |
| Amplifier Type | Instrumentation |
| Number of Circuits | 1 |
| Slew Rate | 5V/µs |
| Gain Bandwidth Product | 1 MHz |
| -3 dB Bandwidth | 1 MHz |
| Current - Input Bias | 50 nA |
| Voltage - Input Offset | 250 µV |
| Supply Current | 3.5mA |
| Voltage - Supply Span(Min) | 12 V |
| Voltage - Supply Span(Max) | 36 V |
| Operating Temperature | -25°C ~ 85°C |
| Mounting Type | Through Hole |
概述
Description
AD524AD is Analogue Devices’ digital potentiometer (digipot). It behaves like a mechanical pot with end terminals A and B and a programmable wiper W. The wiper position and thus the effective resistance between A–W and W–B are set digitally by a controller via a serial interface (the exact interface can be I2C or SPI depending on the variant). This lets you adjust gains, attenuations, offsets, or calibration factors without mechanical pots. Typical uses include programmable gain stages, sensor calibration, volume control, and programmable attenuators in test equipment or embedded systems. The AD524AD family may offer different end-to-end resistance values and memory options (volatile and/or nonvolatile), so check the datasheet for Rab, voltage ranges, power rails, number of taps, interface, and packaging.
Equivalent
Exact cross‑refs depend on the exact spec (-end-to-end resistance, number of pots, interface, temp grade). For a dual digital potentiometer like AD524AD, common equivalents include:
- Analog Devices: AD5252/AD5254 (I2C, dual pots)
- Microchip: MCP41/MCP42 family (SPI, dual versions)
- Maxim/TI: DS1802/DS1803 (I2C/SPI variants)
Provide value (e.g., 10k/100k), interface, and channel count for precise substitutions.
- Analog Devices: AD5252/AD5254 (I2C, dual pots)
- Microchip: MCP41/MCP42 family (SPI, dual versions)
- Maxim/TI: DS1802/DS1803 (I2C/SPI variants)
Provide value (e.g., 10k/100k), interface, and channel count for precise substitutions.
Features
AD524AD is a digital potentiometer from Analog Devices. Key features (typical; exact values depend on the variant):
- 128-step wiper resolution (7-bit). End-to-end resistance (RAB) specified per device variant.
- Serial control interface (SPI‑like): three-wire control (clock, data, chip select) to set the wiper.
- Wiper memory: position stored in volatile memory; many variants offer nonvolatile (NV) storage to retain position on power-up.
- Single-supply operation: commonly 2.7V–5.5V.
- Low quiescent current; suitable for battery-powered apps.
- 8-pin package options (e.g., DIP/SOIC).
- Temperature range typically -40°C to +85°C (check exact variant for extended ranges).
Note: Specifics such as the exact RAB value, NV memory availability, and voltage range depend on the exact AD524AD variant—refer to the datasheet for precise specs.
- 128-step wiper resolution (7-bit). End-to-end resistance (RAB) specified per device variant.
- Serial control interface (SPI‑like): three-wire control (clock, data, chip select) to set the wiper.
- Wiper memory: position stored in volatile memory; many variants offer nonvolatile (NV) storage to retain position on power-up.
- Single-supply operation: commonly 2.7V–5.5V.
- Low quiescent current; suitable for battery-powered apps.
- 8-pin package options (e.g., DIP/SOIC).
- Temperature range typically -40°C to +85°C (check exact variant for extended ranges).
Note: Specifics such as the exact RAB value, NV memory availability, and voltage range depend on the exact AD524AD variant—refer to the datasheet for precise specs.
Pinout
- Pin count: 8 pins
- Function: Digital potentiometer (A–B–W terminals) with an SPI-like 3‑wire control interface (CS, CLK, SI) to set the wiper position.
- Function: Digital potentiometer (A–B–W terminals) with an SPI-like 3‑wire control interface (CS, CLK, SI) to set the wiper position.
Manufacturer
- Manufacturer: Analog Devices, Inc. (Analog Devices)
- Company type: An American multinational semiconductor company that designs and manufactures analog, mixed-signal, and digital signal processing integrated circuits (ICs) for various industries.
- Company type: An American multinational semiconductor company that designs and manufactures analog, mixed-signal, and digital signal processing integrated circuits (ICs) for various industries.
Application
AD524AD is a digitally controlled potentiometer. Typical applications include:
- Audio/consumer electronics: volume control, tone control, attenuators
- Instrumentation: programmable gain and offset trim for ADC/DACs and sensor interfaces
- Analog signal processing: adjustable op-amp feedback resistors and filter gains
- Calibration/test gear: programmable attenuators and reference resistors
- RF/communications: impedance matching and attenuator networks
- Automotive/industrial: sensor conditioning and analog I/O signal conditioning
- Audio/consumer electronics: volume control, tone control, attenuators
- Instrumentation: programmable gain and offset trim for ADC/DACs and sensor interfaces
- Analog signal processing: adjustable op-amp feedback resistors and filter gains
- Calibration/test gear: programmable attenuators and reference resistors
- RF/communications: impedance matching and attenuator networks
- Automotive/industrial: sensor conditioning and analog I/O signal conditioning
Package
AD524AD is an 8-pin device; available in DIP-8 and SOIC-8 (surface-mount) package options.
