Overview
The AD5171BRJZ10-R7 is a 64-position, one-time programmable (OTP) digital potentiometer manufactured by Analog Devices Inc. This device utilizes fuse link technology to achieve permanent memory retention of the resistance setting, making it a cost-effective alternative to EEPROM-based digital potentiometers for applications where reprogramming is not necessary. The AD5171 performs electronic adjustments similar to those of mechanical trimmers and variable resistors, but with the convenience of digital control through a 2-wire, I2C-compatible interface.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Resistor Differential Nonlinearity | R-DNL | RWB, VA = no connect, RAB = 10 kΩ | -0.5 | ±0.1 | 0.5 | % |
| Power Supply Range | VDD | - | 2.7 | - | 5.5 | V |
| OTP Power Supply | VDD_OTP | TA = 25°C | 4.75 | - | 5.25 | V |
| Supply Current | IDD | VIH = 5 V or VIL = 0 V | - | - | 10 | μA |
| OTP Supply Current | IDD_OTP | VDD_OTP = 5 V, TA = 25°C | - | - | 100 | mA |
| Power Dissipation | PDISS | VIH = 5 V or VIL = 0 V, VDD = 5 V | 0.02 | - | 0.055 | mW |
Key Features
- 64-position digital potentiometer with one-time programmable (OTP) capability using fuse link technology.
- 2-wire, I2C-compatible digital control interface.
- Unlimited adjustments before permanently setting the resistance value.
- Permanent fuse blown command to freeze the wiper position.
- Low power consumption with CMOS logic level inputs.
- Operating temperature range from -40°C to +125°C.
- Available in SOT-23-8 package.
Applications
- Automotive electronics adjustments.
- Gain control and offset adjustments.
- Transducer circuit adjustments.
- Programmable filters up to 1.5 MHz bandwidth.
- Replacement for mechanical trimmers and variable resistors in various electronic systems.
Q & A
- What is the AD5171BRJZ10-R7? The AD5171BRJZ10-R7 is a 64-position, one-time programmable (OTP) digital potentiometer from Analog Devices Inc.
- How is the AD5171 programmed? The AD5171 is programmed using a 2-wire, I2C-compatible digital control interface.
- What is the operating temperature range of the AD5171? The operating temperature range is from -40°C to +125°C.
- What package is the AD5171 available in? The AD5171 is available in an SOT-23-8 package.
- What are the typical applications of the AD5171? Typical applications include automotive electronics adjustments, gain control, offset adjustments, transducer circuit adjustments, and programmable filters.
- How does the OTP function work? The OTP function uses fuse link technology to permanently set the resistance value after unlimited adjustments.
- What is the power supply range for the AD5171? The power supply range is from 2.7 V to 5.5 V.
- How much current does the AD5171 consume during OTP programming? The OTP supply current is approximately 100 mA during programming.
- Is the AD5171 suitable for high-frequency applications? Yes, it can be used in programmable filters up to 1.5 MHz bandwidth.
- How is the success of permanent programming verified? The success of permanent programming can be verified through two validation bits in read mode.
