AD5174
Single-Channel, 1024-Position, Digital Rheostat
with SPI interface and 50-TP Memory
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Overview
Features and Benefits
- Single-channel, 1024-position resolution
- 10 kΩ nominal resistance
- 50-times programmable (50-TP) wiper memory
- Rheostat mode temperature coefficient: 35 ppm/°C
- 2.7 V to 5.5 V single-supply operation
- ±2.5 V to ±2.75 V dual-supply
operation for ac or bipolar operations
- SPI-compatible interface
- Wiper setting and memory readback
- Power on refreshed from memory
- Resistor Tolerance Stored in Memory
- Thin LFCSP, 10-lead,
3 mm x 3 mm x 0.8 mm package - Compact MSOP, 10-lead,
3 mm × 4.9 mm × 1.1 mm package
Product Details
The AD5174 is a single-channel, 1024-position digital rheostat that combines industry leading variable resistor performance with nonvolatile memory (NVM) in a compact package.
This device supports both dual-supply operation at ±2.5 V to ±2.75 V and single-supply operation at 2.7 V to 5.5 V and offers 50-times programmable (50-TP) memory.
The AD5174 device wiper settings are controllable through the SPI digital interface. Unlimited adjustments are allowed before programming the resistance value into the 50-TP memory. The AD5174 does not require any external voltage supply to facilitate fuse blow and there are 50 opportunities for permanent programming. During 50-TP activation, a permanent blow fuse command freezes the resistance position (analogous to placing epoxy on a mechanical trimmer).
The AD5174 is available in a 3 mm × 3 mm 10-lead LFCSP package and in a 10-lead MSOP package. The part is guaranteed to operate over the extended industrial temperature range of −40°C to +125°C.
Applications
- Mechanical rheostat replacements
- Op-amp: variable gain control
- Instrumentation: gain, offset adjustment
- Programmable voltage-to-current conversions
- Programmable filters, delays, time constants
- Programmable power supply
- Sensor calibration
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Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| AD5174BCPZ-10-RL7 | Material Declaration | Reliability Data | 10-Lead LFCSP (3mm x 3mm) | |
| AD5174BRMZ-10 | Material Declaration | Reliability Data | 10-Lead MSOP | |
| AD5174BRMZ-10-RL7 | Material Declaration | Reliability Data | 10-Lead MSOP | |
| Wafer Fabrication Data |
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Buy Now Pricing
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List Pricing
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Lead Times
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