Overview
The AD5247BKS10-R2, produced by Analog Devices Inc., is a digital potentiometer that offers a compact and versatile solution for 128-position adjustment applications. This device functions similarly to a mechanical potentiometer or a variable resistor, making it ideal for various precision adjustment needs. It is available in a small SC-70-6 package, measuring 2 mm x 2.1 mm, and operates within a wide temperature range of −40°C to +125°C.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| End-to-End Resistance | R | - | - | 10 kΩ | - | Ω |
| Supply Voltage | VDD | - | 2.7 | 5.5 | V | |
| Supply Current | IDD | VDD = 3.3 V | 0.9 | 2 | µA | |
| Input Logic High | VIH | VDD = 5 V | 2.4 | - | V | |
| Input Logic Low | VIL | VDD = 5 V | 0.8 | - | V | |
| Power Dissipation | PDISS | VDD = 5 V | - | 40 | µW | |
| Bandwidth (-3 dB) | BW | RAB = 10 kΩ, code = 0x40 | - | 600 | kHz | |
| Total Harmonic Distortion | THDW | VA = 1 V rms, f = 1 kHz, RAB = 10 kΩ | - | 0.05 | % |
Key Features
- Compact SC-70-6 package measuring 2 mm x 2.1 mm.
- 128-position digital potentiometer with I2C interface.
- Low power consumption: IDD = 0.9 µA at 3.3 V typical.
- Wide operating temperature range: −40°C to +125°C.
- Low temperature coefficient: 45 ppm/°C.
- CMOS logic level inputs for minimum power dissipation.
- No polarity restrictions between Resistor Terminal A and Resistor Terminal W.
Applications
- Mechanical potentiometer replacement in new designs.
- Transducer adjustment for pressure, temperature, position, chemical, and optical sensors.
- RF amplifier biasing.
- LCD brightness and contrast adjustment.
- Automotive electronics adjustment.
- Gain control and offset adjustment.
Q & A
- What is the primary function of the AD5247BKS10-R2?
The AD5247BKS10-R2 functions as a digital potentiometer, providing the same electronic adjustment as a mechanical potentiometer or a variable resistor.
- What is the end-to-end resistance of the AD5247BKS10-R2?
The end-to-end resistance of the AD5247BKS10-R2 is 10 kΩ.
- What is the operating voltage range of the AD5247BKS10-R2?
The operating voltage range is from 2.7 V to 5.5 V.
- What is the typical supply current at 3.3 V?
The typical supply current at 3.3 V is 0.9 µA.
- What is the temperature coefficient of the AD5247BKS10-R2?
The temperature coefficient is 45 ppm/°C.
- What interface does the AD5247BKS10-R2 use for communication?
The device uses an I2C interface for communication.
- What are some common applications of the AD5247BKS10-R2?
Common applications include mechanical potentiometer replacement, transducer adjustment, RF amplifier biasing, LCD brightness and contrast adjustment, and automotive electronics adjustment.
- What is the bandwidth of the AD5247BKS10-R2?
The bandwidth is 600 kHz for a 10 kΩ configuration.
- What is the total harmonic distortion (THD) of the AD5247BKS10-R2?
The total harmonic distortion is 0.05% at 1 kHz and 1 V rms.
- What is the operating temperature range of the AD5247BKS10-R2?
The operating temperature range is from −40°C to +125°C.
- Are there any polarity restrictions between the resistor terminals?
No, there are no polarity restrictions between Resistor Terminal A and Resistor Terminal W.
