Part A
AD5322BRM
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2754 PCS
- Series
- Acquisição de dados - Convertedores digitais para analógicos (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD5324BRMZ and AD5322BRM are both quad 12-bit voltage-output DACs from Analog Devices in the same MSOP-10 package, sharing an identical SPI interface and reference architecture. The AD5324BRMZ offers a higher reference input range and a wider supply voltage span, making it a viable functional replacement for the AD5322BRM in most designs, provided the system supply and reference levels are validated against the target application.
Resolution
High match
Channel Count
High match
Package Type
High match
Supply Voltage Range
Validation required
Parts at a glance
Part B
AD5324BRMZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6981 PCS
- Package
- MSOP-10
- Series
- Acquisição de dados - Convertedores digitais para analógicos (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 | AD5324BRMZ | AD5322BRM | Why it matters |
|---|---|---|---|
| Number of DAC Channels | 4 | 2 | Determines how many independent analog outputs are available; a 4-channel device cannot be substituted by a 2-channel device without losing outputs. |
| Resolution | 12 bits | 12 bits | Both provide 12-bit resolution, so output granularity and accuracy are equivalent. |
| Interface Type | SPI / QSPI / MICROWIRE / DSP compatible | SPI / QSPI / MICROWIRE / DSP compatible | Serial interface compatibility ensures the device can connect to the same host controller without protocol changes. |
| Supply Voltage (VDD) | 2.5 V to 5.5 V | 2.5 V to 5.5 V | Matching supply ranges allow operation in the same system power environment. |
| Reference Input | External | External | Both require an external reference, so the same reference source can be used for either part. |
| Output Type | Voltage output | Voltage output | Voltage-output DACs drive loads directly without external I-to-V conversion, simplifying design. |
| Package | 10-lead MSOP | 10-lead MSOP | Identical package and pin count allow the same PCB footprint, though pin functions may differ. |
| Operating Temperature Range | -40°C to +105°C | -40°C to +105°C | Same temperature range ensures both parts can be used in industrial and automotive environments. |
| Power-Down Mode | Yes | Yes | Power-down capability reduces power consumption when the DAC is not active, important for portable systems. |
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 | AD5322BRM | AD5324BRMZ |
|---|---|---|
| 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 | SPI, DSP |
| Reference Type | External | External |
| 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 | - | 4 |
| INL / DNL(LSB) | - | ±2, ±0.2 |
Frequently asked questions
What are the key differences between the AD5324BRMZ and the AD5322BRM?
The AD5324BRMZ is a quad 12-bit digital-to-analog converter (DAC) in a 10-lead MSOP package, while the AD5322BRM is a dual 12-bit DAC in a 10-lead MSOP package. Both share the same 12-bit resolution, 2.5 V to 5.5 V supply range, and SPI-compatible serial interface, but the AD5324 provides four output channels versus two on the AD5322.
Are the AD5324BRMZ and AD5322BRM pin-compatible?
No. Although both devices are offered in a 10-lead MSOP package, their pin functions differ because the AD5324 has four DAC outputs while the AD5322 has two. The AD5324BRMZ uses the additional pins for the extra VOUT channels, so the pinouts are not interchangeable without design changes.
Can the AD5324BRMZ directly replace the AD5322BRM in an existing design?
Not directly. The AD5324BRMZ provides four DAC channels whereas the AD5322BRM provides two, and their pin assignments differ. A direct drop-in replacement is not possible; the PCB layout, channel count, and control software must be reviewed against the respective datasheets before substitution.
Do the AD5324BRMZ and AD5322BRM have the same resolution and accuracy specifications?
Yes. Both are 12-bit DACs with guaranteed monotonicity and similar integral nonlinearity (INL) and differential nonlinearity (DNL) specifications as stated in their respective Analog Devices datasheets. The primary difference is channel count, not resolution or linearity grade.
What supply voltage and reference input do the AD5324BRMZ and AD5322BRM require?
Both devices operate from a single 2.5 V to 5.5 V supply. Each has a reference input pin that sets the DAC output range; the output voltage is determined by the reference voltage and the programmed digital code. External reference decoupling and source requirements should be verified from the official datasheets.
What serial interface do the AD5324BRMZ and AD5322BRM use?
Both devices use a 3-wire SPI-compatible serial interface (SYNC, SCLK, and DIN) that operates at clock rates specified in the Analog Devices datasheets. The interface allows daisy-chaining and is compatible with standard microcontroller SPI peripherals.
Are the AD5324BRMZ and AD5322BRM available in the same package and temperature range?
Both are offered in a 10-lead MSOP package and are specified for the industrial temperature range of −40°C to +105°C, as listed in the Analog Devices datasheets. The package code "RM" and the "Z" suffix on the AD5324BRMZ indicate RoHS-compliant lead finish, while the AD5322BRM may be non-RoHS depending on the ordering variant.