AD5173 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

AD5173
Manufacturer

ADI
ChipWorker Part#

CW760422533
Description

256Position One-Time Programmable Dual-Channel I2C Compatible Digital Resistor
Documentation

Datasheet

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AD5173 Specifications

Attribute	Attribute Value

Part Number	AD5173
Manufacturer	ADI
ChipWorker Part#	CW760422533
Documentation	Datasheet
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Product Lifecycle Status	Active

Product Description

Product Details
The AD5172/AD5173 are dual-channel, 256-position, one-time programmable (OTP) digital potentiometers1 that employ fuse link technology to achieve memory retention of resistance settings. OTP is a cost-effective alternative to EEMEM for users who do not need to program the digital potentiometer setting in memory more than once. These devices perform the same electronic adjustment function as mechanical potentiometers or variable resistors with enhanced resolution, solid-state reliabil-ity, and superior low temperature coefficient performance.
The AD5172/AD5173 are programmed using a 2-wire, I2C®-compatible digital interface. Unlimited adjustments are allowed before permanently setting the resistance value. During OTP activation, a permanent blow fuse command freezes the wiper position (analogous to placing epoxy on a mechanical trimmer).
Unlike traditional OTP digital potentiometers, the AD5172/ AD5173 have a unique temporary OTP overwrite feature that allows for new adjustments even after a fuse is blown. However, the OTP setting is restored during subsequent power-up condi-tions. This allows users to treat these digital potentiometers as volatile potentiometers with a programmable preset.
**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
Automotive electronics adjustment
Gain control and offset adjustment
1 The terms digital potentiometer, VR, and RDAC are used interchangeably.
### Features and Benefits
2-channel, 256-position potentiometers
One-time programmable (OTP) set-and-forget resistance setting provides a low cost alternative to EEMEM
Unlimited adjustments prior to OTP activation
OTP overwrite allows dynamic adjustments with user-defined preset
End-to-end resistance: 2.5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ
Compact 10-lead MSOP: 3 mm × 4.9 mm
Fast settling time: tS = 5 μs typical in power-up
See Data Sheet for Additional Information

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