Part A
AD7392ARZ
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2297 ПКС
- Package
- SOIC-20
- Series
- Сбор данных - цифровые в аналоговые преобразователи (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD7392ARZ and AD7393AR are both 12-bit voltage-output DACs from the same Analog Devices family, sharing a compatible serial interface and similar operating conditions. The AD7393AR offers a higher reference input range and a wider supply span, making it a viable functional substitute for the AD7392ARZ in most designs, provided the reference voltage and supply rails are validated against the target application.
Resolution
High match
Output Type
High match
Reference Input Range
Validation required
Supply Voltage Range
Validation required
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 | AD7393AR | Why it matters |
|---|---|---|---|
| Resolution | 12 bits | 10 bits | Resolution determines the number of discrete output levels; a 12-bit DAC offers 4x finer granularity than a 10-bit DAC, affecting precision of the analog output. |
| Number of DAC Channels | 1 | 1 | Both are single-channel DACs, so channel count is not a differentiator for substitutability. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Compatible supply range ensures the part can operate in the same system power rail without redesign. |
| Output Type | Voltage output | Voltage output | Both provide buffered voltage outputs, so the interface to downstream circuitry is functionally equivalent. |
| Interface | SPI-compatible serial | SPI-compatible serial | Matching serial interface allows the same microcontroller firmware and bus wiring to be reused. |
| Package | 20-lead SOIC (Wide) | 20-lead SOIC (Wide) | Identical package footprint enables drop-in board replacement without layout changes. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Same industrial temperature range means both parts suit the same environmental conditions. |
| Integral Nonlinearity (INL) | ±1 LSB (typ) | ±1 LSB (typ) | INL indicates linearity error; comparable INL means similar accuracy performance in the application. |
| Settling Time | 6 µs (typ) | 6 µs (typ) | Settling time affects how quickly the DAC output reaches its final value; matching values support similar dynamic response. |
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 | AD7392ARZ | AD7393AR |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Number of Bits | 12 | - |
| Number of D/A Converters | 1 | - |
| Settling Time | 70µs (Typ) | - |
| Output Type | Voltage - Buffered | - |
| Differential Output | No | - |
| Data Interface | Parallel | - |
| Reference Type | External | - |
| Voltage - Supply, Analog | 2.7V ~ 5.5V | - |
| Voltage - Supply, Digital | 2.7V ~ 5.5V | - |
| INL / DNL(LSB) | ±3 (Max), ±1 (Max) | - |
| Architecture | R-2R | - |
| Operating Temperature | -40°C ~ 85°C | - |
Frequently asked questions
What are the key differences between the AD7392ARZ and AD7393AR?
The AD7392ARZ is a 12-bit voltage-output digital-to-analog converter, while the AD7393AR is a 10-bit voltage-output DAC. Both are single-channel, parallel-input DACs from Analog Devices in a 20-lead SOIC package, but they differ in resolution (12-bit vs 10-bit) and therefore in the number of input data bits and associated specifications such as differential nonlinearity and resolution-dependent accuracy.
Are the AD7392ARZ and AD7393AR pin-compatible?
Both devices are offered in the same 20-lead SOIC (R-20) package from Analog Devices, and their pin functions are closely related as members of the same DAC family. However, because the AD7392ARZ is 12-bit and the AD7393AR is 10-bit, the data input pins and their bit weighting differ, so a direct drop-in replacement should only be made after verifying the pinout and data-interface timing against the respective manufacturer datasheets.
What is the resolution and input interface of each device?
The AD7392ARZ provides 12-bit resolution with a parallel data input interface, while the AD7393AR provides 10-bit resolution with a parallel data input interface. Both are single-channel voltage-output DACs intended for microprocessor-compatible parallel bus applications.
Do both parts operate from the same supply voltage?
Both the AD7392ARZ and AD7393AR are specified for single-supply operation in the +2.7 V to +5.5 V range, as documented in the Analog Devices datasheets. Designers should confirm the exact supply and reference conditions in the respective datasheet before finalizing a design.
Can the AD7393AR be used as a lower-cost substitute for the AD7392ARZ?
Substitution is possible only if the application can tolerate the reduced 10-bit resolution of the AD7393AR instead of the 12-bit resolution of the AD7392ARZ. Because resolution affects DNL, INL, and the effective number of input bits, the system's accuracy and interface requirements must be revalidated against the AD7393AR datasheet before substituting.
What package do the AD7392ARZ and AD7393AR use?
Both the AD7392ARZ and AD7393AR are supplied in a 20-lead SOIC package (Analog Devices R-20 suffix). The "ARZ" and "AR" suffixes denote the SOIC package and, for the AD7392ARZ, the RoHS-compliant Z grade.
Are both devices RoHS compliant?
The AD7392ARZ carries the "Z" suffix, which in Analog Devices nomenclature indicates a RoHS-compliant package. The AD7393AR uses the older "AR" suffix, which does not carry the Z designation; designers requiring confirmed RoHS compliance should verify the specific ordering part number and its compliance status in the manufacturer's product documentation.