Part A
AD7792BRU
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 4535 PCS
- Series
- Acquisition de données - Convertisseur analogique - numérique (ADC)
Replacement verdict
Compatible functional replacement candidate
The AD7792BRUZ and AD7792BRU are functionally equivalent 16-bit sigma-delta ADCs from the same manufacturer family, sharing identical core architecture, resolution, and interface characteristics. The primary distinction lies in the package finish and ordering suffix, with the BRUZ denoting the RoHS-compliant variant. Both parts are suitable for precision low-power measurement applications, and the BRUZ can serve as a direct functional substitute where lead-free compliance is required.
Resolution and Architecture
High match
Package Type
High match
Interface Type
High match
RoHS Compliance
Validation required
Parts at a glance
Part B
AD7792BRUZ
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 6128 PCS
- Package
- TSSOP-16
- Series
- Acquisition de données - Convertisseur analogique - numérique (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 | AD7792BRUZ | AD7792BRU | Why it matters |
|---|---|---|---|
| Resolution (bits) | 16 | 16 | Determines the smallest signal change the ADC can resolve; identical resolution means equivalent measurement precision. |
| Number of ADC channels | 3 | 3 | Defines how many differential input pairs can be measured; matching channel count supports the same sensor configurations. |
| Interface type | SPI / QSPI / MICROWIRE / DSP compatible | SPI / QSPI / MICROWIRE / DSP compatible | The digital communication protocol must match the host controller for the part to be drop-in compatible. |
| Supply voltage (analog) | 2.7 V to 5.25 V | 2.7 V to 5.25 V | Operating voltage range must be compatible with the system power rail for correct operation. |
| Package / mounting | 16-TSSOP (surface mount) | 16-TSSOP (surface mount) | Footprint and mounting style must match the PCB layout for physical substitutability. |
| Operating temperature range | -40°C to +105°C | -40°C to +105°C | Temperature range must cover the application environment for reliable operation. |
| RoHS / lead-free status | RoHS compliant, lead-free | Non-RoHS (contains lead) | RoHS compliance affects regulatory conformity and solder process compatibility; the Z suffix denotes the lead-free variant. |
| Internal PGA gain range | 1 to 128 | 1 to 128 | Programmable gain allows direct connection of low-level sensors without external amplification. |
| Internal reference | Yes (2.5 V) | Yes (2.5 V) | An on-chip reference simplifies design and ensures consistent ratiometric measurement accuracy. |
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 | AD7792BRU | AD7792BRUZ |
|---|---|---|
| Part Status | Obsolete | Active |
| Base Product Number | AD7792 | - |
| Number of Bits | 16 | 16 |
| Sampling Rate (Per Second) | 470 | - |
| Number of Inputs | 3 | 3 |
| Input Type | Differential | Differential |
| Data Interface | SPI, DSP | SPI, DSP |
| Configuration | MUX-ADC | MUX-ADC |
| Number of A / D Converters | 1 | - |
| Architecture | Sigma-Delta | Sigma-Delta |
| Reference Type | External, Internal | External, Internal |
| Voltage - Supply, Analog | 2.7V ~ 5.25V | 2.7V ~ 5.25V |
| Voltage - Supply, Digital | 2.7V ~ 5.25V | 2.7V ~ 5.25V |
| Features | PGA | PGA |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 105°C |
| Mounting Type | Surface Mount | - |
| Packaging | Tube | - |
| Sampling Rate(Per Second) | - | 470 |
| Number of A/D Converters | - | 1 |
Frequently asked questions
What is the difference between the AD7792BRUZ and the AD7792BRU?
The AD7792BRUZ and AD7792BRU are functionally identical 16-bit sigma-delta ADCs from Analog Devices. The only difference is the suffix: the "Z" designation indicates RoHS-compliant packaging, while the non-Z version (AD7792BRU) is the older non-RoHS variant. Both are supplied in a 16-lead TSSOP package and share the same electrical specifications.
Are the AD7792BRUZ and AD7792BRU pin-compatible?
Yes. Both devices use the same 16-lead TSSOP (RU-16) package with identical pin assignments, so they are pin-compatible and share the same PCB land pattern.
Can the AD7792BRUZ be used as a direct replacement for the AD7792BRU?
Yes, from a functional and footprint standpoint the AD7792BRUZ is a drop-in replacement for the AD7792BRU. The AD7792BRUZ is the RoHS-compliant version, so it is the preferred choice for new designs and for compliance with current environmental regulations.
What are the key specifications shared by the AD7792BRUZ and AD7792BRU?
Both are 16-bit sigma-delta ADCs with three differential inputs, an on-chip low-noise programmable gain amplifier (PGA), an internal band gap reference, and an internal clock. They support a programmable output data rate and are specified for low-power operation, making them suitable for precision sensor measurement applications.
Do the AD7792BRUZ and AD7792BRU differ in accuracy or resolution?
No. The AD7792BRUZ and AD7792BRU share the same 16-bit resolution and the same accuracy specifications. The "Z" suffix denotes RoHS compliance only and does not affect the device's electrical performance.
Which version should be selected for a new design, the AD7792BRUZ or the AD7792BRU?
The AD7792BRUZ should be selected for new designs because it is the RoHS-compliant variant. The AD7792BRU (non-Z) is the legacy non-RoHS version and may be subject to restricted availability or end-of-life status.
Are the AD7792BRUZ and AD7792BRU available in the same package type?
Yes. Both parts are offered in the 16-lead TSSOP package (RU-16). The package outline and pin configuration are identical between the two versions.