Part A
AD5322BRM
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2754 PCS
- Series
- Data Acquisition - Digital to Analog Converters (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD5322BRMZ and AD5322BRM are functionally equivalent dual 12-bit DACs from Analog Devices, with the BRMZ grade offering a lead-free, RoHS-compliant MSOP-10 package that is drop-in compatible with the BRM version in most applications. Designers should verify solder profile compatibility and confirm that the lead-free package meets their specific assembly and reliability requirements before substituting.
Resolution
High match
Channel Count
High match
Package Type
High match
Lead Finish / RoHS Compliance
Validation required
Parts at a glance
Part B
AD5322BRMZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 1406 PCS
- Package
- MSOP-10
- Series
- Data Acquisition - Digital to Analog Converters (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 | AD5322BRMZ | AD5322BRM | Why it matters |
|---|---|---|---|
| Number of DAC Channels | 2 | 2 | Both devices provide two independent voltage-output DAC channels, so the channel count is functionally equivalent. |
| Resolution | 12 bits | 12 bits | Identical resolution means the same output granularity and quantization error, preserving accuracy in the target application. |
| Supply Voltage Range | 2.5 V to 5.5 V | 2.5 V to 5.5 V | Matching supply ranges allow either part to operate from the same system rail without redesign. |
| Interface Type | SPI-compatible serial (3-wire) | SPI-compatible serial (3-wire) | The same serial interface protocol ensures firmware and host controller compatibility. |
| Output Type | Voltage output, buffered | Voltage output, buffered | Buffered voltage outputs with identical drive characteristics support direct substitution in analog signal chains. |
| Package Type | 10-Lead MSOP | 10-Lead MSOP | The same package footprint allows drop-in replacement on an existing PCB layout. |
| RoHS Compliance | RoHS compliant | Non-RoHS (contains lead) | The Z suffix denotes RoHS compliance; the non-Z version may not meet current environmental regulations for new designs. |
| Lead Finish / Plating | Matte tin | Tin-lead | Different lead finishes affect solderability, whisker risk, and compliance with lead-free manufacturing processes. |
| Operating Temperature Range | -40 °C to +105 °C | -40 °C to +105 °C | Identical temperature ratings ensure equivalent performance across the same environmental conditions. |
| Mounting Type | Surface mount | Surface mount | Both are surface-mount devices, so assembly processes remain unchanged when substituting one for the other. |
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 | AD5322BRMZ |
|---|---|---|
| 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 | - | 2 |
| INL / DNL(LSB) | - | ±2, ±0.2 |
Frequently asked questions
What is the difference between AD5322BRMZ and AD5322BRM?
The AD5322BRMZ is the RoHS-compliant, lead-free version of the AD5322BRM. Both are dual 12-bit DACs in a 10-lead MSOP package with identical electrical specifications. The "Z" suffix indicates RoHS compliance and a lead-free manufacturing process, while the non-Z version contains lead in its termination finish.
Are the AD5322BRMZ and AD5322BRM functionally interchangeable?
Yes, both devices are functionally identical and share the same datasheet specifications, including resolution, interface, and package footprint. The only difference is the RoHS compliance status and lead content in the package termination finish. In designs requiring RoHS compliance, only the AD5322BRMZ should be used.
What is the resolution and number of DAC channels for these devices?
Both the AD5322BRMZ and AD5322BRM are dual-channel, 12-bit digital-to-analog converters. They provide two independent voltage output DACs with 12-bit resolution, offering 4096 discrete output levels.
What digital interface do the AD5322BRMZ and AD5322BRM use?
Both devices use a 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards. The interface operates at clock rates up to 30 MHz and supports daisy-chaining of multiple devices.
What is the package type and pin count for the AD5322BRMZ and AD5322BRM?
Both the AD5322BRMZ and AD5322BRM are offered in a 10-lead MSOP (Mini Small Outline Package). The package dimensions and pin configuration are identical between the two versions.
What is the operating temperature range for these DACs?
Both the AD5322BRMZ and AD5322BRM are specified for operation over the industrial temperature range of -40°C to +105°C, as stated in the Analog Devices datasheet.
Can the AD5322BRM be used as a drop-in replacement for the AD5322BRMZ?
Electrically and functionally, yes, the AD5322BRM can replace the AD5322BRMZ in most applications. However, if the design or manufacturing process requires RoHS compliance, the AD5322BRMZ must be used instead, as the AD5322BRM contains lead in its termination finish.
What is the supply voltage range for the AD5322BRMZ and AD5322BRM?
Both devices operate from a single supply voltage of 2.5 V to 5.5 V. The output voltage range is 0 V to VREF, where VREF is the external reference voltage applied to the device.