Overview
The AD5173BRMZ10, manufactured by Analog Devices Inc., is a dual-channel, 256-position, one-time programmable (OTP) digital potentiometer. This device employs fuse link technology to achieve memory retention of resistance settings, offering a cost-effective alternative to EEMEM for applications where settings do not need to be programmed more than once. It performs the same electronic adjustment function as mechanical potentiometers or variable resistors but with enhanced resolution, solid-state reliability, and a superior low temperature coefficient performance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Circuits | 2 | |
| Number of Taps | 256 | |
| Resistance (Ohms) | 10k | Ω |
| Interface | I2C | |
| Memory Type | OTP (One-Time Programmable) | |
| Voltage - Supply | 2.7 V to 5.5 V | V |
| Operating Temperature | -40°C to +125°C | °C |
| Temperature Coefficient | 35 ppm/°C (Typical) | ppm/°C |
| Power Consumption | 6 µA (Maximum) | µA |
| Settling Time | 5 µs (Typical on power-up) | µs |
| Package Type | 10-MSOP |
Key Features
- Dual-channel, 256-position digital potentiometer
- One-time programmable (OTP) with fuse link technology
- Unlimited adjustments before OTP activation
- Temporary OTP overwrite feature for dynamic adjustments
- I2C-compatible digital interface
- Power-on preset to midscale
- Extra package address decode pins (AD0 and AD1)
- Low power consumption: IDD = 6 µA maximum
- Compact 10-lead MSOP package: 3 mm × 4.9 mm
- Fast settling time: tS = 5 µs typical on power-up
Applications
- Systems calibration
- Electronics level setting
- Mechanical trimmers replacement in new designs
- Permanent factory PCB setting
- Transducer adjustment of pressure, temperature, position, chemical, and optical sensors
- RF amplifier biasing
- Gain control and offset adjustment
Q & A
- What is the AD5173BRMZ10 used for?
The AD5173BRMZ10 is used as a dual-channel, 256-position digital potentiometer, replacing mechanical potentiometers or variable resistors in various applications such as systems calibration, electronics level setting, and transducer adjustments.
- What is the interface type of the AD5173BRMZ10?
The AD5173BRMZ10 uses an I2C-compatible digital interface for programming and communication.
- What is the operating voltage range of the AD5173BRMZ10?
The operating voltage range of the AD5173BRMZ10 is from 2.7 V to 5.5 V.
- What is the temperature coefficient of the AD5173BRMZ10?
The temperature coefficient of the AD5173BRMZ10 is 35 ppm/°C (typical).
- How many taps does the AD5173BRMZ10 have?
The AD5173BRMZ10 has 256 taps.
- What is the power consumption of the AD5173BRMZ10?
The maximum power consumption of the AD5173BRMZ10 is 6 µA.
- What is the package type of the AD5173BRMZ10?
The AD5173BRMZ10 comes in a 10-MSOP package.
- Can the AD5173BRMZ10 be adjusted after OTP activation?
Yes, the AD5173BRMZ10 has a temporary OTP overwrite feature that allows for new adjustments even after a fuse is blown, although the OTP setting is restored during subsequent power-up conditions.
- What are some common applications of the AD5173BRMZ10?
Common applications include systems calibration, electronics level setting, mechanical trimmers replacement, permanent factory PCB setting, and transducer adjustments for various sensors.
- What is the settling time of the AD5173BRMZ10 on power-up?
The settling time of the AD5173BRMZ10 on power-up is typically 5 µs.
