Part A
AD5322BRM
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 2754 PCS
- Series
- Acquisition de données - convertisseur numérique - analogique (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD5322BRM and AD5322ARM-REEL7 are functionally equivalent dual 12-bit DACs sharing the same architecture, resolution, and interface. The primary distinction is the operating temperature grade, with the BRM version rated for the extended industrial range and the ARM version for the automotive range. Both are viable substitutes when the target application's thermal and qualification requirements are satisfied.
Resolution
High match
Interface Type
High match
Package Type
High match
Operating Temperature Range
Validation required
Parts at a glance
Part B
AD5322ARM-REEL7
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 9412 PCS
- Package
- MSOP-10
- Series
- Acquisition de données - convertisseur numérique - analogique (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 | AD5322BRM | AD5322ARM-REEL7 | Why it matters |
|---|---|---|---|
| Number of D/A Converters | 2 | 2 | Both devices integrate two independent 12-bit DAC channels, so channel count is identical and does not affect substitutability. |
| Resolution | 12 bits | 12 bits | Resolution determines the smallest analog output step; identical 12-bit resolution means equivalent output granularity. |
| Interface Type | SPI / DSP-compatible serial | SPI / DSP-compatible serial | The serial interface must match the host controller; both use the same 3-wire serial protocol, so firmware and wiring are compatible. |
| Supply Voltage (Analog and Digital) | 2.5 V to 5.5 V | 2.5 V to 5.5 V | Supply range defines the allowable system rails; identical ranges allow the parts to be used in the same power architecture. |
| Reference Type | External | External | Both require an external reference, so the reference circuit and output scaling remain the same when substituting. |
| Output Type | Voltage, buffered | Voltage, buffered | Buffered voltage outputs can drive loads directly; matching output type ensures the same load-driving behavior. |
| Operating Temperature Range | -40°C to +105°C | -40°C to +105°C | The temperature grade must cover the application environment; identical ranges mean both parts are suitable for the same thermal conditions. |
| Package / Mounting Type | 10-Lead MSOP, Surface Mount | 10-Lead MSOP, Surface Mount | Package and mounting must match the PCB footprint; identical MSOP packages allow drop-in replacement without layout changes. |
| Packaging / Ordering Format | Tube | Tape & Reel | Packaging affects assembly line handling and inventory; tube versus reel may require different feeder setups despite identical die. |
| Grade / Performance Class | B Grade | A Grade | Grade suffixes indicate tested accuracy and temperature performance; A and B grades may differ in specified linearity and drift limits. |
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 | AD5322ARM-REEL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Obsolete | Obsolete |
| 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 |
| Base Product Number | AD5322 | - |
| Number of D / A Converters | 2 | - |
| INL / DNL (LSB) | ±2, ±0.2 | - |
| Mounting Type | Surface Mount | - |
| Packaging | Tube | - |
Frequently asked questions
What are the key differences between the AD5322BRM and AD5322ARM-REEL7?
Both are dual 12-bit DACs from Analog Devices in the same 10-lead MSOP package. The primary differences are the grade and packaging: the AD5322BRM is a B-grade device with specified INL of ±1 LSB and DNL of ±0.2 LSB, while the AD5322ARM-REEL7 is an A-grade device with specified INL of ±2 LSB and DNL of ±0.5 LSB. The AD5322ARM-REEL7 is supplied in tape-and-reel packaging, whereas the AD5322BRM is typically supplied in tubes.
Are the AD5322BRM and AD5322ARM-REEL7 pin-compatible?
Yes. Both devices are offered in the same 10-lead MSOP (RM) package and share the same pinout, so they are pin-compatible when the PCB footprint matches the MSOP-10 land pattern.
Can the AD5322ARM-REEL7 be used as a drop-in replacement for the AD5322BRM?
Pin compatibility allows a physical drop-in, but the electrical specifications differ. The AD5322ARM-REEL7 has wider INL and DNL limits than the AD5322BRM, so it should only be substituted after verifying that the relaxed accuracy specifications meet the target application requirements.
What is the resolution and number of DAC channels for these devices?
Both the AD5322BRM and AD5322ARM-REEL7 are dual-channel, 12-bit digital-to-analog converters, providing two independent voltage output DACs in a single package.
What supply voltage and reference range do the AD5322BRM and AD5322ARM-REEL7 support?
Both devices operate from a single 2.5 V to 5.5 V supply. The reference input range extends from 0.25 V to VDD, and the output voltage spans from 0 V to the reference voltage.
What interface do the AD5322BRM and AD5322ARM-REEL7 use for communication?
Both parts use a 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards, supporting clock rates up to 30 MHz.
Do the AD5322BRM and AD5322ARM-REEL7 differ in operating temperature range?
No. Both the AD5322BRM and AD5322ARM-REEL7 are specified for the industrial temperature range of −40°C to +105°C.
What packaging options distinguish the AD5322BRM from the AD5322ARM-REEL7?
The AD5322BRM is typically supplied in 10-lead MSOP tubes, while the AD5322ARM-REEL7 is supplied in 10-lead MSOP tape-and-reel packaging with a 7-inch reel, making it suitable for automated pick-and-place assembly lines.