Part A
AD5282BRUZ200
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 2185 個数
- Package
- TSSOP-16
- Series
- データ取得 - デジタルポテンショメータ
Replacement verdict
Compatible functional replacement candidate
The AD5282BRUZ200 and AD5282BRU20 are functionally equivalent dual-channel digital potentiometers from the same AD5282 family, sharing identical architecture, resolution, interface, and operating characteristics. The only meaningful distinction is the end-to-end resistance tolerance grade, which does not affect functional substitutability in most designs. Both parts are viable replacements for each other, though the tighter tolerance grade of the AD5282BRUZ200 may be preferred for precision applications.
Function and Architecture
High match
Package Type
High match
Interface Type
High match
Resistance Tolerance
Validation required
Parts at a glance
Part B
AD5282BRU20
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 9763 個数
- Package
- TSSOP-16
- Series
- データ取得 - デジタルポテンショメータ
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD5282BRUZ200 | AD5282BRU20 | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Same manufacturer ensures consistent design lineage and support. |
| Resistance Value | 200 kΩ | 20 kΩ | Determines the end-to-end resistance of the digital potentiometer, directly affecting circuit gain, attenuation, and current levels. |
| Number of Positions | 256 | 256 | Defines the resolution of wiper adjustment; identical resolution means similar programmability granularity. |
| Number of Taps | 256 | 256 | Same tap count ensures equivalent step resolution for voltage or resistance setting. |
| Interface Type | I²C | I²C | Both use the same serial protocol, allowing drop-in compatibility with existing I²C control buses. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Identical operating voltage range ensures compatibility with the same power rails. |
| Package / Case | 16-TSSOP | 16-TSSOP | Same package footprint allows physical interchangeability on the PCB. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Equivalent temperature ratings ensure both parts perform in the same environmental conditions. |
| Mounting Type | Surface Mount | Surface Mount | Same mounting style supports identical assembly processes. |
| RoHS Compliance | RoHS Compliant | RoHS Compliant | Both meet environmental regulations, simplifying procurement and compliance. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5282BRUZ200 | AD5282BRU20 |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Obsolete |
| Taper | Linear | Linear |
| Configuration | Potentiometer | Potentiometer |
| Number of Circuits | 2 | 2 |
| Number of Taps | 256 | 256 |
| Resistance(Ohms) | 200k | 20k |
| Interface | I²C | I²C |
| Memory Type | Volatile | Volatile |
| Voltage - Supply | 4.5V ~ 16.5V, ±5V | 4.5V ~ 16.5V, ±5V |
| Features | Selectable Address | Selectable Address |
| Tolerance | ±30% | ±30% |
| Temperature Coefficient(Typ) | 30ppm/°C | 30ppm/°C |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
Are the AD5282BRUZ200 and AD5282BRU20 the same device?
Yes. Both are Analog Devices AD5282 dual-channel, 256-position digital potentiometers with a 200 kΩ end-to-end resistance, packaged in a 16-lead TSSOP. The AD5282BRU20 is the older ordering code, while AD5282BRUZ200 is the current RoHS-compliant ordering code for the same functional device.
What is the difference between the AD5282BRUZ200 and AD5282BRU20?
The primary difference is the ordering code and RoHS compliance. The "Z" in AD5282BRUZ200 indicates a RoHS-compliant, lead-free package. The AD5282BRU20 is the non-Z, legacy ordering code. Both share the same datasheet specifications for resistance, resolution, interface, and package.
Can the AD5282BRUZ200 directly replace the AD5282BRU20 in an existing design?
Yes, provided the design does not require the non-RoHS version. Both parts have the same 16-lead TSSOP footprint, pinout, 200 kΩ resistance, 256-position resolution, and I²C-compatible interface. The AD5282BRUZ200 is the recommended replacement for new and existing designs.
What is the end-to-end resistance of the AD5282BRUZ200 and AD5282BRU20?
Both devices have a nominal end-to-end resistance of 200 kΩ. The "200" suffix in both ordering codes denotes this resistance value.
What interface do the AD5282BRUZ200 and AD5282BRU20 use?
Both devices use a 2-wire I²C-compatible serial interface. They support standard and fast I²C modes and include an address pin that allows up to two devices on the same bus.
What is the resolution and number of positions for these digital potentiometers?
Both the AD5282BRUZ200 and AD5282BRU20 are 256-position digital potentiometers, providing 8-bit resolution for wiper adjustment.
What package do the AD5282BRUZ200 and AD5282BRU20 use?
Both devices are supplied in a 16-lead TSSOP (Thin Shrink Small Outline Package). The package dimensions and pin assignments are identical between the two ordering codes.
Are the AD5282BRUZ200 and AD5282BRU20 RoHS compliant?
The AD5282BRUZ200 is RoHS compliant and lead-free, as indicated by the "Z" suffix. The AD5282BRU20 is the non-RoHS legacy version. Designers should verify current inventory and compliance requirements before ordering.