Part A
AD7302BRZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 6529 個数
- Package
- SOIC-20
- Series
- データ取得 - デジタル/アナログコンバータ (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD7302BRZ and AD7302BR-REEL7 are functionally equivalent dual 8-bit voltage-output DACs from Analog Devices, differing only in packaging format (tube vs. tape-and-reel). Both share identical die, electrical specifications, and 20-lead SOIC footprint, making them interchangeable for design and qualification purposes; the choice between them is purely a matter of assembly and inventory handling preference.
Resolution and DAC Architecture
High match
Package and Footprint
High match
Supply Voltage and Interface
High match
Operating Temperature Range
High match
Parts at a glance
Part B
AD7302BR-REEL7
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 8670 個数
- Package
- SOIC-20
- Series
- データ取得 - デジタル/アナログコンバータ (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 | AD7302BRZ | AD7302BR-REEL7 | Why it matters |
|---|---|---|---|
| Resolution | 8 bit | 8 bit | Determines the number of discrete output levels; both parts provide identical DAC resolution, so substitutability is unaffected. |
| Number of DAC Channels | 2 | 2 | Channel count must match the system's analog output requirements; both are dual-channel devices. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Defines compatibility with the system power rail; identical ranges ensure the parts are interchangeable in the same supply environment. |
| Interface Type | Parallel | Parallel | The digital interface must match the host controller; both use a parallel interface, preserving board-level compatibility. |
| Package / Case | 20-SOIC | 20-SOIC | Footprint and package must match for drop-in replacement; both are 20-lead SOIC devices. |
| Mounting Type | Surface Mount | Surface Mount | Assembly method must be compatible with the PCB process; both are surface-mount parts. |
| Operating Temperature Range | -40 °C to +105 °C | -40 °C to +105 °C | Ensures the device operates reliably in the target environment; identical ranges mean no thermal derating differences. |
| Packaging / Delivery Form | Tube | Tape & Reel | Affects manufacturing handling and pick-and-place automation; the reel version suits high-volume automated assembly while the tube version suits low-volume or prototyping. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD7302BRZ | AD7302BR-REEL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Number of Bits | 8 | - |
| Number of D/A Converters | 2 | - |
| Settling Time | 2µs | - |
| 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) | ±1 (Max), ±1 (Max) | - |
| Architecture | Current Source | - |
| Operating Temperature | -40°C ~ 105°C | - |
Frequently asked questions
What are the AD7302BRZ and AD7302BR-REEL7?
Both are dual 8-bit voltage-output digital-to-analog converters (DACs) from Analog Devices. The AD7302BRZ is supplied in a 20-lead SOIC tube package, while the AD7302BR-REEL7 is the same device supplied in a 20-lead SOIC tape-and-reel package for automated assembly.
Are the AD7302BRZ and AD7302BR-REEL7 electrically identical?
Yes. Both part numbers refer to the same AD7302 silicon in the same 20-lead SOIC (R-20) package with the same specifications, including 2.7 V to 5.5 V supply range, 8-bit resolution, and a parallel interface. The only difference is the packaging format: tube (BRZ) versus tape-and-reel (BR-REEL7).
What is the difference between the BRZ and BR-REEL7 suffixes?
The "Z" suffix in AD7302BRZ denotes RoHS-compliant lead-free construction. The "REEL7" suffix in AD7302BR-REEL7 denotes tape-and-reel packaging, typically 750 units per 7-inch reel. Both are RoHS-compliant; the distinction is the shipping format.
Can AD7302BRZ and AD7302BR-REEL7 be used interchangeably in a design?
Yes. Because both are the same die in the same 20-lead SOIC package with identical pinout and electrical specifications, they are functionally interchangeable in a PCB design. The choice between them is driven by manufacturing requirements (manual versus automated placement) rather than electrical performance.
What are the key specifications of the AD7302?
The AD7302 is a dual 8-bit DAC with a parallel interface, operating from a single 2.7 V to 5.5 V supply. It features a settling time of 2 µs, a reference input range from 0 V to VDD, and is specified over the −40 °C to +105 °C temperature range. It is available in 20-lead SOIC and TSSOP packages.
Which package do both part numbers use?
Both AD7302BRZ and AD7302BR-REEL7 use the 20-lead SOIC package (Analog Devices package code R-20). The PCB land pattern and pinout are identical, so no layout change is required when switching between the two ordering codes.
Why would a designer choose the REEL7 version over the tube version?
The AD7302BR-REEL7 tape-and-reel format is intended for high-volume automated pick-and-place assembly lines, which require reeled components. The AD7302BRZ tube format is typically used for prototyping, low-volume runs, or manual assembly. Both contain the same device.