Part A
AD5320BRM
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4780 PCS
- Package
- MSOP-8
- Series
- Acquisição de dados - Convertedores digitais para analógicos (DAC)
Replacement verdict
Not a drop-in replacement
The AD5320BRM and AD5322BRM-REEL7 are not drop-in replacements for each other. Although both are 12-bit DACs from Analog Devices in the same MSOP-8 package, they differ fundamentally in channel count, digital interface protocol, and reference architecture, requiring PCB redesign and firmware changes.
Different channel count
Different digital interface
Different reference architecture
Different output drive capability
Parts at a glance
Part B
AD5322BRM-REEL7
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6875 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 | AD5320BRM | AD5322BRM-REEL7 | Why it matters |
|---|---|---|---|
| Number of DAC Channels | 1 | 2 | Channel count determines how many independent analog outputs the device can drive, directly affecting functional substitutability in multi-channel designs. |
| Resolution | 12 bits | 12 bits | Resolution defines the smallest analog output step; matching resolution ensures equivalent precision in the target application. |
| Interface Type | SPI | SPI | The digital interface must match the host controller to allow direct communication without additional glue logic. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Compatible supply ranges allow the parts to operate in the same power environment without level shifting. |
| Package / Case | 8-Lead MSOP | 10-Lead MSOP | Package footprint and pin count affect PCB layout compatibility and whether a drop-in replacement is possible. |
| Output Type | Voltage Buffered | Voltage Buffered | Buffered voltage outputs can drive loads directly, simplifying the analog signal chain. |
| Operating Temperature Range | -40°C to +105°C | -40°C to +105°C | Temperature range must cover the application environment to ensure reliable operation. |
| Reference Type | External | External | Reference configuration affects accuracy and requires matching external circuitry for equivalent performance. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5320BRM | AD5322BRM-REEL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Obsolete | Obsolete |
| Number of Bits | 12 | 12 |
| Number of D/A Converters | 1 | 2 |
| 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 AD5320BRM and AD5322BRM-REEL7?
The AD5320BRM is a single-channel, 12-bit voltage-output DAC in an 8-lead MSOP package, while the AD5322BRM-REEL7 is a dual-channel, 12-bit voltage-output DAC in a 10-lead MSOP package. The AD5322 provides two independent DAC outputs, whereas the AD5320 provides one. Both operate from a 2.7 V to 5.5 V supply and use a 3-wire SPI-compatible serial interface.
Are the AD5320BRM and AD5322BRM-REEL7 pin-compatible?
No. The AD5320BRM uses an 8-lead MSOP package, and the AD5322BRM-REEL7 uses a 10-lead MSOP package. They have different pin counts and pin functions, so they are not pin-compatible and cannot be interchanged on the same PCB footprint without redesign.
What is the resolution and channel count of each device?
Both the AD5320BRM and AD5322BRM-REEL7 are 12-bit DACs. The AD5320BRM has one voltage output channel, and the AD5322BRM-REEL7 has two voltage output channels.
What supply voltage range do the AD5320BRM and AD5322BRM-REEL7 support?
Both devices operate from a single supply voltage of 2.7 V to 5.5 V, as specified in the Analog Devices datasheets for the AD5320 and AD5322 families.
What serial interface do the AD5320BRM and AD5322BRM-REEL7 use?
Both devices use a 3-wire SPI-compatible serial interface (SYNC, SCLK, and DIN) that operates at clock rates up to 30 MHz, allowing direct connection to standard SPI, QSPI, MICROWIRE, and DSP interface ports.
Can the AD5320BRM be used as a drop-in replacement for the AD5322BRM-REEL7?
No. The AD5320BRM is a single-channel 8-lead MSOP device, while the AD5322BRM-REEL7 is a dual-channel 10-lead MSOP device. They differ in channel count, package size, and pinout, so a direct drop-in replacement is not possible without board redesign and firmware changes.
Do both devices have the same output voltage range and reference configuration?
Both the AD5320BRM and AD5322BRM-REEL7 provide a voltage output that spans from 0 V to the reference input voltage (VREF), and both require an external reference voltage applied to the VREF pin. Neither device includes an internal reference.
What are the operating temperature ranges for the AD5320BRM and AD5322BRM-REEL7?
Both the AD5320BRM and AD5322BRM-REEL7 are specified for the industrial temperature range of −40°C to +105°C, as stated in their respective Analog Devices datasheets.