Overview
The AD5173BRMZ10-RL7, produced by Analog Devices Inc., is a dual-channel, 256-position, one-time programmable (OTP) digital potentiometer. This device is designed to replace mechanical potentiometers or variable resistors with enhanced resolution, solid-state reliability, and superior low temperature coefficient performance. It operates on a single supply voltage ranging from 2.7 V to 5.5 V, making it suitable for a variety of applications, including battery-powered devices.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 2 | |
| Number of Taps | 256 | |
| End-to-End Resistance | 10 kΩ | Ω |
| Temperature Coefficient | 35 ppm/°C | ppm/°C |
| Supply Voltage Range | 2.7 V to 5.5 V | V |
| Supply Current | 3.5 µA (typ), 6 µA (max) | µA |
| Operating Temperature Range | -40°C to +125°C | °C |
| Package Type | 10-Lead MSOP | |
| Interface | I2C | |
| Memory Type | One-Time Programmable (OTP) | |
| Settling Time | 5 µs (typ) on power-up | µs |
Key Features
- Dual-channel, 256-position digital potentiometer
- One-time programmable (OTP) set-and-forget resistance setting
- Unlimited adjustments before OTP activation
- Temporary OTP overwrite feature for dynamic adjustments
- Compact 10-lead MSOP package (3 mm × 4.9 mm)
- Fast settling time: 5 µs typical on power-up
- Full read/write of wiper register
- Power-on preset to midscale
- Extra package address decode pins: AD0 and AD1
- Low power consumption: IDD = 6 µA maximum
- Low temperature coefficient: 35 ppm/°C
- Wide operating temperature range: -40°C to +125°C
Applications
- Systems calibration
- Electronics level setting
- Replacement of mechanical trimmers in new designs
- Permanent factory PCB setting
- Transducer adjustment for pressure, temperature, position, chemical, and optical sensors
- RF amplifier biasing
- Gain control and offset adjustment
Q & A
- What is the AD5173BRMZ10-RL7 used for?
The AD5173BRMZ10-RL7 is used as a dual-channel, 256-position digital potentiometer to replace mechanical potentiometers or variable resistors in various applications.
- What is the supply voltage range of the AD5173BRMZ10-RL7?
The supply voltage range is from 2.7 V to 5.5 V.
- What is the temperature coefficient of the AD5173BRMZ10-RL7?
The temperature coefficient is 35 ppm/°C.
- What is the package type of the AD5173BRMZ10-RL7?
The package type is a 10-lead MSOP.
- What interface does the AD5173BRMZ10-RL7 use?
The device uses an I2C interface.
- Can the AD5173BRMZ10-RL7 be adjusted after OTP activation?
Yes, the device 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 is the settling time of the AD5173BRMZ10-RL7 on power-up?
The settling time is 5 µs typical on power-up.
- What are some common applications of the AD5173BRMZ10-RL7?
Common applications include systems calibration, electronics level setting, replacement of mechanical trimmers, permanent factory PCB setting, transducer adjustment, RF amplifier biasing, and gain control and offset adjustment.
- How many adjustments can be made before OTP activation?
Unlimited adjustments can be made before OTP activation.
- What is the operating temperature range of the AD5173BRMZ10-RL7?
The operating temperature range is from -40°C to +125°C.
