Part A
AD5322BRM
아날로그 디바이스(주)
- Lifecycle
- Active
- Stock
- 2754 PCS
- Series
- 데이터 수집 - 다이 모드 변환기(DAC)
Replacement verdict
Compatible functional replacement candidate
The AD5321BRMZ and AD5322BRM are both 12-bit voltage-output DACs from Analog Devices in the MSOP-8 package, sharing a compatible supply range and serial interface. However, the AD5321BRMZ is a single-channel device while the AD5322BRM is dual-channel, so the AD5322BRM can serve as a functional substitute only when the second DAC channel is unused or the board layout accommodates the additional channel. Designers should verify channel count requirements, reference configuration, and output loading before committing to this substitution.
Resolution
High match
Channel Count
Not compatible
Package Type
High match
Reference Configuration
Validation required
Parts at a glance
Part B
AD5321BRMZ
아날로그 디바이스(주)
- Lifecycle
- Active
- Stock
- 3782 PCS
- Package
- MSOP-8
- Series
- 데이터 수집 - 다이 모드 변환기(DAC)
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD5321BRMZ | AD5322BRM | Why it matters |
|---|---|---|---|
| Number of DAC Channels | 1 | 2 | Channel count determines how many independent analog outputs the system can drive; a single-channel part cannot replace a dual-channel part without adding another device. |
| Resolution | 12 bits | 12 bits | Resolution sets the smallest output voltage step and thus the achievable precision of the analog output. |
| Interface Type | I2C (2-wire) | SPI (3-wire) | The digital interface must match the host controller's available bus; I2C and SPI are not directly interchangeable without a bus bridge. |
| Package / Mounting | 8-Lead MSOP | 10-Lead MSOP | Different pin counts and footprints affect PCB layout and whether the parts are drop-in compatible. |
| Supply Voltage Range | 2.5 V to 5.5 V | 2.5 V to 5.5 V | The supply range must cover the system rail to ensure correct operation and output swing. |
| Output Type | Voltage output | Voltage output | Voltage-output DACs drive loads directly, while current-output types require an external op-amp, so matching output type is essential for substitution. |
| Reference Input | External reference | External reference | The reference source determines the full-scale output voltage and overall accuracy of the DAC. |
| Operating Temperature Range | -40 °C to +105 °C | -40 °C to +105 °C | The temperature range must cover the application environment to guarantee specified performance. |
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Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5322BRM | AD5321BRMZ |
|---|---|---|
| Part Status | Obsolete | Active |
| Base Product Number | AD5322 | - |
| Number of Bits | 12 | 12 |
| Number of D / A Converters | 2 | - |
| Settling Time | 10µs | 10µs |
| Output Type | Voltage - Buffered | Voltage - Buffered |
| Differential Output | No | No |
| Data Interface | SPI, DSP | I²C |
| Reference Type | External | Supply |
| Voltage - Supply, Analog | 2.5V ~ 5.5V | 2.5V ~ 5.5V |
| Voltage - Supply, Digital | 2.5V ~ 5.5V | 2.5V ~ 5.5V |
| INL / DNL (LSB) | ±2, ±0.2 | - |
| Architecture | String DAC | String DAC |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 105°C |
| Mounting Type | Surface Mount | - |
| Packaging | Tube | - |
| Number of D/A Converters | - | 1 |
| INL / DNL(LSB) | - | ±2, ±0.3 |