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 AD5282BRU50 are functionally compatible digital potentiometers from the same AD5282 family, sharing identical package, interface, and channel configuration. The primary distinction is the end-to-end resistance value, which directly affects circuit calibration and must be validated against the target application requirements before substitution.
End-to-End Resistance
Not compatible
Package Type
High match
Interface Type
High match
Channel Count
High match
Parts at a glance
Part B
AD5282BRU50
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 2096 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 | AD5282BRU50 | Why it matters |
|---|---|---|---|
| End-to-End Resistance | 200 kΩ | 50 kΩ | Determines the nominal resistance range of the digital potentiometer, directly affecting the current through and voltage across the wiper circuit in the target application. |
| Number of Positions | 256 | 256 | Defines the wiper resolution; identical resolution means both parts offer the same number of programmable tap settings. |
| Number of Potentiometers | 2 | 2 | Indicates how many independent resistor channels are integrated; both provide dual-channel capability for multi-channel adjustment. |
| Interface Type | I2C | I2C | Determines the digital communication protocol required by the host controller; matching interfaces allow drop-in control compatibility. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Specifies the allowable power supply window; identical ranges ensure the same system rails can power either device. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Defines the environmental conditions under which the device is guaranteed to operate; matching ranges ensure equivalent thermal robustness. |
| Package / Mounting Type | 16-TSSOP, Surface Mount | 16-TSSOP, Surface Mount | Determines PCB footprint and assembly compatibility; identical packages allow the same board layout to accept either part. |
| Wiper Resistance | 60 Ω typical | 60 Ω typical | Represents the on-resistance of the internal wiper switch; lower values reduce signal attenuation and loading effects in the signal path. |
| Resistance Tolerance | ±30 % | ±30 % | Indicates the variation of end-to-end resistance from nominal; matching tolerances mean similar absolute accuracy in resistance-dependent designs. |
| Nonvolatile Memory | No | No | Determines whether the wiper setting is retained after power loss; both being volatile means the setting must be reloaded at each power-up. |
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 | AD5282BRU50 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Taper | Linear | Linear |
| Configuration | Potentiometer | Potentiometer |
| Number of Circuits | 2 | 2 |
| Number of Taps | 256 | 256 |
| Resistance(Ohms) | 200k | 50k |
| 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
What is the main difference between the AD5282BRUZ200 and the AD5282BRU50?
The primary difference is the end-to-end resistance value of the digital potentiometer. The AD5282BRUZ200 has a 200 kΩ nominal resistance, while the AD5282BRU50 has a 50 kΩ nominal resistance. Both are dual-channel, 256-position, I²C-compatible digital potentiometers from Analog Devices in a 16-lead TSSOP package.
Are the AD5282BRUZ200 and AD5282BRU50 pin-compatible and package-compatible?
Yes. Both devices are offered in the same 16-lead TSSOP (RU-16) package and share the same pinout. This allows a common PCB land pattern, but the different resistance values must still be validated for the target circuit.
Can the AD5282BRUZ200 and AD5282BRU50 be used interchangeably in a design?
Not automatically. Although they are pin-compatible and share the same I²C interface and 256-position resolution, the 4:1 difference in end-to-end resistance (200 kΩ vs. 50 kΩ) changes the wiper current, voltage divider ratios, and RC time constants. The replacement must be validated against the specific circuit requirements.
What is the resolution and number of positions for both the AD5282BRUZ200 and AD5282BRU50?
Both devices provide 256 positions (8-bit resolution) per channel and are dual-channel digital potentiometers. The resolution is identical; only the nominal end-to-end resistance differs.
What digital interface do the AD5282BRUZ200 and AD5282BRU50 use?
Both devices use a 2-wire I²C-compatible serial interface. They support standard and fast I²C modes and include an address pin for multiple device configurations on the same bus.
What are the typical applications for the AD5282BRUZ200 versus the AD5282BRU50?
The AD5282BRU50 (50 kΩ) is commonly used in lower-impedance signal paths, such as audio volume control or sensor trimming where lower thermal noise and faster settling are beneficial. The AD5282BRUZ200 (200 kΩ) is often used in higher-impedance applications, such as bias adjustment or low-power trimming, where lower current draw through the potentiometer is desired.
Do the AD5282BRUZ200 and AD5282BRU50 have the same operating voltage range and temperature range?
Yes. Both devices operate from a single 2.7 V to 5.5 V supply or dual ±2.7 V supplies, and both are specified over the extended industrial temperature range of −40°C to +85°C. The resistance value does not change these ratings.
What is the resistance tolerance and temperature coefficient for the AD5282BRUZ200 and AD5282BRU50?
Both devices have a nominal resistance tolerance of ±30% and a ratiometric temperature coefficient of 5 ppm/°C (typical). The absolute end-to-end temperature coefficient is typically 35 ppm/°C. These specifications apply to both the 200 kΩ and 50 kΩ versions.