Part A
AD7739BRUZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 1798 Stückzahl
- Package
- TSSOP-24
- Series
- Datenerfassung mit Analog to Digital Converters (ADC)
Replacement verdict
Compatible functional replacement candidate
The AD7739BRUZ and AD7739BRU-REEL are functionally identical, differing only in packaging format. The AD7739BRUZ is supplied in tube packaging, while the AD7739BRU-REEL is supplied in tape-and-reel packaging for automated assembly. Both share the same silicon die, package type, and electrical specifications, making them interchangeable for design and qualification purposes.
Package Type
High match
Pin Configuration
High match
Electrical Specifications
High match
Operating Temperature Range
High match
Parts at a glance
Part B
AD7739BRU-REEL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3923 Stückzahl
- Package
- TSSOP-24
- Series
- Datenerfassung mit Analog to Digital Converters (ADC)
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD7739BRUZ | AD7739BRU-REEL | Why it matters |
|---|---|---|---|
| Resolution (bits) | 24 | 24 | Determines the finest signal change the ADC can resolve; identical resolution means equivalent measurement precision. |
| Number of ADC channels | 8 | 8 | Defines how many analog inputs can be measured; matching channel count ensures the same system-level input capacity. |
| Interface type | SPI / Serial | SPI / Serial | The digital communication protocol must match the host controller for the part to be a drop-in replacement. |
| Supply voltage (analog) | 5 V | 5 V | Analog supply range must be compatible with the existing power rail design for functional substitutability. |
| Package / case | 24-TSSOP | 24-TSSOP | Footprint and pinout must match for the part to physically fit the same PCB location. |
| Mounting type | Surface Mount | Surface Mount | Assembly method must be compatible with the existing manufacturing process. |
| Packaging / delivery form | Tube | Tape & Reel | Delivery format affects automated pick-and-place assembly and inventory handling, though the die and function are identical. |
| Operating temperature range | -40 °C to +105 °C | -40 °C to +105 °C | Environmental operating limits must meet the application's thermal requirements for reliable operation. |
| Manufacturer | Analog Devices | Analog Devices | Same manufacturer and product family confirms identical silicon and specifications. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD7739BRUZ | AD7739BRU-REEL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Obsolete |
| Number of Bits | 24 | 24 |
| Sampling Rate(Per Second) | 15.1k | 15.1k |
| Number of Inputs | 4, 8 | 4, 8 |
| Input Type | Differential, Single Ended | Differential, Single Ended |
| Data Interface | SPI, DSP | SPI, DSP |
| Configuration | MUX-ADC | MUX-ADC |
| Number of A/D Converters | 1 | 1 |
| Architecture | Sigma-Delta | Sigma-Delta |
| Reference Type | External | External |
| Voltage - Supply, Analog | 5V | 5V |
| Voltage - Supply, Digital | 2.7V ~ 3.6V, 5V | 2.7V ~ 3.6V, 5V |
| Features | True Bipolar | True Bipolar |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 105°C |
Frequently asked questions
What is the difference between AD7739BRUZ and AD7739BRU-REEL?
Both parts refer to the same AD7739 converter die in a 24-lead TSSOP package. The AD7739BRUZ is the standard tube/individual packaging orderable part number, while AD7739BRU-REEL is the tape-and-reel packaging variant intended for automated assembly. The "Z" suffix in AD7739BRUZ denotes RoHS-compliant lead-free construction per Analog Devices part numbering; the AD7739BRU-REEL designation reflects the reel packing option.
Are AD7739BRUZ and AD7739BRU-REEL electrically and functionally identical?
Yes. Both orderable part numbers correspond to the same AD7739 signal conditioning ADC: a 24-bit sigma-delta converter with eight input channels, programmable gain, and a 24-lead TSSOP package. The only documented difference is the shipping/packaging format (tube vs. tape-and-reel), not the device specification.
Can AD7739BRUZ and AD7739BRU-REEL be used interchangeably in a design?
Yes, from an electrical and footprint standpoint they are interchangeable because they share the same die, package, and pinout. The choice between them is driven by manufacturing logistics: AD7739BRUZ for low-volume or tube-fed assembly, and AD7739BRU-REEL for high-volume pick-and-place lines requiring tape-and-reel feed.
What package do AD7739BRUZ and AD7739BRU-REEL use?
Both parts are supplied in a 24-lead TSSOP (Thin Shrink Small Outline Package), consistent with the "RU" package designator in the Analog Devices part numbering. PCB land patterns and thermal considerations are therefore identical for both orderable codes.
Does the "Z" in AD7739BRUZ indicate RoHS compliance?
Yes. In Analog Devices part numbering, the "Z" suffix designates a RoHS-compliant, lead-free package. Designers should confirm the RoHS status of the specific ordered variant (AD7739BRUZ vs. AD7739BRU-REEL) against the current manufacturer datasheet and product page, since packaging variants may carry different compliance documentation.
Which part number should be specified for high-volume automated assembly?
AD7739BRU-REEL is the tape-and-reel orderable variant, which is the appropriate choice for high-volume surface-mount assembly lines using automated pick-and-place equipment. AD7739BRUZ in tube form is typically preferred for prototyping, low-volume runs, or manual handling.
Do AD7739BRUZ and AD7739BRU-REEL share the same datasheet specifications?
Yes. Both orderable part numbers map to the same AD7739 datasheet, so resolution, channel count, gain settings, supply requirements, and timing specifications are identical. Any difference in documentation pertains only to packaging quantity and shipping format, not device performance.