Part A
AD5320BRMZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3563 PCS
- Package
- MSOP-8
- Series
- Data Acquisition - Digital to Analog Converters (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD5320BRMZ and AD5324BRM share a compatible SPI interface, 12-bit DAC resolution, and similar supply voltage requirements, making the AD5320BRMZ a viable functional substitute for the AD5324BRM in single-channel applications. However, the AD5324BRM provides four DAC channels versus one on the AD5320BRMZ, and the packages differ (MSOP-8 vs MSOP-10), so board-level validation is required before substitution.
Resolution
High match
Interface Type
High match
Channel Count
Validation required
Package Type
Not compatible
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD5320BRMZ | AD5324BRM | Why it matters |
|---|---|---|---|
| Number of DAC Channels | 1 | 4 | Determines how many independent analog outputs are available; a single-channel device cannot replace a quad-channel device in multi-output designs. |
| Resolution | 12 bits | 12 bits | Both provide 12-bit resolution, so output granularity and accuracy are equivalent for precision control applications. |
| 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 Range | 2.7 V to 5.5 V | 2.5 V to 5.5 V | The wider lower bound of the AD5324BRM allows operation in lower-voltage systems, while both support common 3 V and 5 V rails. |
| Output Voltage Range | 0 V to VREF | 0 V to VREF | Both provide rail-to-rail output span referenced to VREF, enabling similar analog output scaling. |
| Package Type | 8-Lead MSOP | 10-Lead MSOP | Different pin counts and footprints affect PCB layout and may require board redesign for substitution. |
| Operating Temperature Range | -40°C to +105°C | -40°C to +105°C | Identical industrial temperature range supports use in the same environmental conditions. |
| Power Consumption | Low power (typically 0.7 mW at 3 V) | Low power (typically 1.5 mW at 3 V) | Lower power per channel in the AD5320BRMZ benefits battery-powered or energy-sensitive designs. |
| Reference Input | External reference | External reference | Both require an external reference, so system reference design can remain consistent. |
| Settling Time | 10 µs typical | 10 µs typical | Similar settling time ensures comparable dynamic response for control and waveform generation. |
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 | AD5320BRMZ | AD5324BRM |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Number of Bits | 12 | 12 |
| Number of D/A Converters | 1 | 4 |
| Settling Time | 10µs | 10µs |
| Output Type | Voltage - Buffered | Voltage - Buffered |
| Differential Output | No | No |
| Data Interface | SPI, DSP | SPI, DSP |
| Reference Type | Supply | External |
| Voltage - Supply, Analog | 2.7V ~ 5.5V | 2.5V ~ 5.5V |
| Voltage - Supply, Digital | 2.7V ~ 5.5V | 2.5V ~ 5.5V |
| INL / DNL(LSB) | ±16 (Max), ±1 (Max) | ±2, ±0.2 |
| Architecture | String DAC | String DAC |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 105°C |
Frequently asked questions
What are the key differences between the AD5320BRMZ and AD5324BRM?
The AD5320BRMZ is a single-channel, 12-bit voltage-output DAC in a 10-lead MSOP package, while the AD5324BRM is a quad-channel, 12-bit voltage-output DAC in a 10-lead MSOP package. The AD5320BRMZ provides one DAC output, whereas the AD5324BRM integrates four independent DAC channels in the same package footprint.
Are the AD5320BRMZ and AD5324BRM pin-compatible?
No. Although both devices are offered in a 10-lead MSOP package, their pin functions differ because the AD5324BRM requires pins for four DAC outputs and associated reference/control signals, while the AD5320BRMZ uses its pins for a single DAC output and its own control interface. They are not direct pin-for-pin replacements.
Do the AD5320BRMZ and AD5324BRM use the same digital interface?
Both devices use a serial interface, but the AD5320BRMZ uses a 3-wire SPI-compatible interface, while the AD5324BRM uses a 2-wire I2C-compatible interface. The interface protocols and timing requirements are therefore not interchangeable.
What is the resolution and output type of each device?
Both the AD5320BRMZ and AD5324BRM are 12-bit voltage-output DACs. The AD5320BRMZ provides a single voltage output, and the AD5324BRM provides four independent voltage outputs.
Can the AD5320BRMZ be used as a drop-in replacement for the AD5324BRM in an existing design?
No. Because the channel count, pinout, and digital interface differ, the AD5320BRMZ cannot directly replace the AD5324BRM without redesigning the PCB, updating the control firmware, and validating the analog output requirements against the manufacturer datasheets.
What are the supply voltage and reference requirements for these DACs?
Both the AD5320BRMZ and AD5324BRM operate from a single 2.5 V to 5.5 V supply and use an external reference voltage input to set the DAC full-scale output. The reference input range and output span should be verified in the respective manufacturer datasheets for the target operating conditions.
Which device is better for multi-channel applications?
The AD5324BRM is better suited for multi-channel applications because it integrates four 12-bit DAC channels in one 10-lead MSOP package, reducing board space and component count compared with using four separate AD5320BRMZ devices.
Are the AD5320BRMZ and AD5324BRM available in the same package type?
Yes. Both the AD5320BRMZ and AD5324BRM are specified in a 10-lead MSOP package. However, the package alone does not make them interchangeable because the internal channel count, pin assignments, and interface differ.