Part A
AD7302BRUZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 7737 PCS
- Package
- TSSOP-20
- Series
- Data Acquisition - Digital to Analog Converters (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD7302BRUZ and AD7302BRU are functionally equivalent dual 8-bit voltage-output DACs sharing the same core architecture, resolution, channel count, and interface. The only material distinction is the package finish: the AD7302BRUZ is the RoHS-compliant version, while the AD7302BRU is the non-RoHS legacy variant. For designs requiring lead-free compliance, the AD7302BRUZ is the preferred drop-in candidate; otherwise both parts are interchangeable at the functional level.
Resolution
High match
Channel Count
High match
Package Type
High match
RoHS Compliance
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 | AD7302BRUZ | AD7302BRU | Why it matters |
|---|---|---|---|
| Number of DAC Channels | 2 | 2 | Both parts are dual-channel DACs, so channel count is identical and does not affect substitutability. |
| Resolution | 8 bits | 8 bits | Resolution determines the smallest output step; identical 8-bit resolution means equivalent output granularity. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Matching supply ranges ensure both parts operate in the same system power environment. |
| Interface Type | Parallel (8-bit) | Parallel (8-bit) | The digital interface must match the host controller; both use the same parallel interface, so they are drop-in compatible. |
| Package / Case | 16-TSSOP | 16-TSSOP | Identical package and footprint allow direct board-level replacement without layout changes. |
| Mounting Type | Surface Mount | Surface Mount | Both are surface-mount devices; mounting style is consistent for assembly compatibility. |
| RoHS / Lead-Free Status | RoHS Compliant, Lead-Free | Non-RoHS (contains lead) | The "Z" suffix denotes lead-free/RoHS compliance; this is the primary functional difference affecting regulatory and assembly requirements. |
| Operating Temperature Range | -40 °C to +105 °C | -40 °C to +105 °C | Matching temperature ranges confirm both parts suit the same environmental conditions. |
| Settling Time | 2 µs (typical) | 2 µs (typical) | Settling time affects dynamic response; identical values mean equivalent transient performance. |
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 | AD7302BRUZ | AD7302BRU |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Number of Bits | 8 | 8 |
| Number of D/A Converters | 2 | 2 |
| Settling Time | 2µs | 2µs |
| 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) | ±1 (Max), ±1 (Max) | ±1 (Max), ±1 (Max) |
| Architecture | Current Source | Current Source |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 105°C |
Frequently asked questions
What is the difference between the AD7302BRUZ and the AD7302BRU?
The AD7302BRUZ and AD7302BRU are functionally identical dual 8-bit voltage-output DACs from Analog Devices. The only difference is the suffix: the "Z" designation indicates RoHS-compliant packaging and lead-free termination finish, while the AD7302BRU is the non-RoHS version. Both are specified in a 20-lead TSSOP package and share the same electrical specifications.
Are the AD7302BRUZ and AD7302BRU pin-compatible?
Yes. Both devices are offered in the same 20-lead TSSOP (RU-20) package with identical pin assignments, so they are pin-compatible and share the same PCB land pattern.
Can the AD7302BRUZ be used as a drop-in replacement for the AD7302BRU?
Yes, from an electrical and footprint standpoint the AD7302BRUZ is a drop-in replacement for the AD7302BRU. The substitution is appropriate where RoHS-compliant, lead-free assembly is required or preferred; designs qualified with the non-RoHS AD7302BRU should confirm solder process compatibility with the lead-free finish.
What are the key specifications shared by the AD7302BRUZ and AD7302BRU?
Both are dual 8-bit DACs with a parallel interface, operating from a single 2.7 V to 5.5 V supply. They offer voltage output with a rail-to-rail output swing, a settling time of approximately 2 µs, and are specified over the −40 °C to +105 °C temperature range in the 20-lead TSSOP package.
Does the "Z" suffix affect the electrical performance of the AD7302BRUZ?
No. The "Z" suffix denotes RoHS compliance and lead-free termination finish only. The electrical specifications, resolution, interface, supply range, and temperature ratings of the AD7302BRUZ are the same as those of the AD7302BRU.
Which version should be selected for a new RoHS-compliant design?
The AD7302BRUZ should be selected for new designs requiring RoHS compliance, as it carries the lead-free, RoHS-compliant finish. The AD7302BRU is the non-RoHS variant and is generally intended for legacy designs or applications not subject to RoHS requirements.
Are the AD7302BRUZ and AD7302BRU available in the same package and temperature grade?
Yes. Both are supplied in the 20-lead TSSOP package and are specified over the −40 °C to +105 °C operating temperature range, so package and temperature grade are identical between the two orderable part numbers.