Part A
AD7392ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2297 PCS
- Package
- SOIC-20
- Series
- Acquisição de dados - Convertedores digitais para analógicos (DAC)
Replacement verdict
Not a drop-in replacement
The AD7392ARZ and AD7396AR are not drop-in replacements for one another. Although both are 12-bit voltage-output DACs from Analog Devices, they differ in channel count, digital interface, reference architecture, and package footprint, so a direct board-level substitution is not possible without redesign.
Different channel count
Different digital interface
Different reference architecture
Different package footprint
Parts at a glance
Part B
AD7396AR
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 55 PCS
- Package
- SOIC-24
- 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 | AD7392ARZ | AD7396AR | Why it matters |
|---|---|---|---|
| Resolution | 12 bit | 12 bit | Both DACs offer 12-bit resolution, so they provide the same output granularity for precision control applications. |
| Number of DAC Channels | 1 | 2 | Channel count determines how many independent analog outputs are available; a dual-channel part can replace two single-channel parts in multi-output designs. |
| Interface Type | Parallel | SPI / Serial (3-wire) | The digital interface must match the host controller; parallel and serial interfaces are not directly interchangeable without redesigning the bus. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Both operate over the same single-supply range, allowing use in common 3 V and 5 V systems. |
| Reference Input | External | External | Both require an external voltage reference, so the same reference source can be reused when substituting parts. |
| Output Type | Voltage output | Voltage output | Voltage-output DACs drive loads directly without external I/V conversion, simplifying the analog signal chain. |
| Package / Mounting | 20-Lead SOIC (surface mount) | 14-Lead SOIC (surface mount) | Different package footprints require PCB layout changes, affecting drop-in substitutability. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Identical temperature ratings mean both suit the same industrial and commercial environments. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD7392ARZ | AD7396AR |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Number of Bits | 12 | 12 |
| Number of D/A Converters | 1 | 2 |
| Settling Time | 70µs (Typ) | 70µs (Typ) |
| Output Type | Voltage - Buffered | Voltage - Buffered |
| Differential Output | No | No |
| Data Interface | Parallel | Parallel |
| Reference Type | External | External |
| Voltage - Supply, Analog | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| Voltage - Supply, Digital | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| INL / DNL(LSB) | ±3 (Max), ±1 (Max) | ±2 (Max), ±1 (Max) |
| Architecture | R-2R | R-2R |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What are the key differences between the AD7392ARZ and AD7396AR?
The AD7392ARZ is a 12-bit voltage-output digital-to-analog converter (DAC) in a 20-lead SOIC package, while the AD7396AR is a 12-bit DAC in a 24-lead TSSOP package. Both are single-channel DACs from Analog Devices, but they differ in package type, pin count, and specified operating temperature range. The AD7392ARZ is specified over the industrial temperature range of −40°C to +85°C, and the AD7396AR is specified over the same industrial range. Designers should consult the respective datasheets for full electrical and timing specifications before substitution.
Are the AD7392ARZ and AD7396AR pin-compatible?
No. The AD7392ARZ uses a 20-lead SOIC (R-20) package, and the AD7396AR uses a 24-lead TSSOP (RU-24) package. Because the package types and pin counts differ, the two devices are not pin-compatible and cannot be interchanged on the same PCB footprint without layout changes.
Do both parts have the same resolution and DAC architecture?
Yes. Both the AD7392ARZ and AD7396AR are 12-bit, single-channel, voltage-output DACs. Both are members of Analog Devices' AD739x family of 12-bit DACs, which share a similar resistor-string DAC architecture and serial interface. However, the exact interface timing, reference requirements, and output specifications should be verified against each device's datasheet.
What is the supply voltage range for the AD7392ARZ and AD7396AR?
Both devices operate from a single supply in the range of +2.7 V to +5.5 V, making them suitable for low-voltage, single-supply systems. Designers should confirm the exact specified limits and any derating requirements in the respective Analog Devices datasheets before finalizing a design.
Can the AD7396AR be used as a drop-in replacement for the AD7392ARZ?
No. Although both are 12-bit single-channel DACs from the same family, they are housed in different packages (24-lead TSSOP versus 20-lead SOIC) with different pinouts. A drop-in replacement is not possible without a PCB redesign. Any substitution must be validated against the manufacturer datasheets for electrical, timing, and thermal compatibility.
What serial interface do the AD7392ARZ and AD7396AR use?
Both devices use a 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols, allowing direct connection to most microcontrollers and DSPs. The interface includes serial data input, clock, and chip-select/load signals. Exact timing parameters such as setup and hold times should be verified from the respective datasheets.
Which package options are available for these two DACs?
The AD7392ARZ is supplied in a 20-lead SOIC package (R-20 suffix). The AD7396AR is supplied in a 24-lead TSSOP package (RU-24 suffix). Both are RoHS-compliant, lead-free packages as indicated by the "Z" and "R" suffixes in the ordering codes. Package thermal characteristics and PCB land patterns differ between the two and must be considered during layout.