Part A
AD8674ARUZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2550 PCS
- Package
- TSSOP-14
- Series
- Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
Replacement verdict
Compatible functional replacement candidate
The AD8674ARUZ and AD8674ARU are functionally equivalent quad operational amplifiers from Analog Devices, sharing the same core die, package outline, and electrical performance. The AD8674ARUZ is the RoHS-compliant, lead-free version of the AD8674ARU, making it a suitable functional replacement candidate where lead-free compliance is required. Designers should confirm solder process compatibility and any documentation or qualification requirements tied to the RoHS transition before substituting in existing assemblies.
Amplifier Type and Channel Count
High match
Package Type and Pinout
High match
Electrical Performance
High match
RoHS and Lead-Free 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 | AD8674ARUZ | AD8674ARU | Why it matters |
|---|---|---|---|
| Package / Mounting Type | 14-Lead TSSOP (RU-14), Surface Mount | 14-Lead TSSOP (RU-14), Surface Mount | Both use the same TSSOP footprint, so board-level drop-in compatibility is maintained; the suffix difference does not affect package or pinout. |
| RoHS / Lead-Free Status | RoHS compliant, lead-free (Z suffix denotes lead-free) | Non-RoHS, contains lead (no Z suffix) | The Z suffix indicates lead-free/RoHS construction; this affects regulatory compliance and solder process compatibility for new designs. |
| Number of Amplifiers | 4 (quad) | 4 (quad) | Channel count must match for functional substitutability in multi-channel signal chains. |
| Gain Bandwidth Product | 10 MHz | 10 MHz | GBW determines the achievable closed-loop bandwidth and is a primary selection criterion for amplifier substitution. |
| Input Offset Voltage (max) | 75 µV | 75 µV | Low offset voltage is critical for precision DC signal accuracy; matching values ensure equivalent error budgets. |
| Input Voltage Noise Density | 2.8 nV/√Hz (at 1 kHz) | 2.8 nV/√Hz (at 1 kHz) | Noise density governs the SNR floor in low-level signal applications; identical values preserve noise performance. |
| Supply Voltage Range | ±5 V to ±15 V (dual supply) | ±5 V to ±15 V (dual supply) | Operating supply range must match to ensure the part works in the target rail configuration without redesign. |
| Supply Current per Amplifier | 3 mA (typical) | 3 mA (typical) | Quiescent current affects power budget and thermal design; matching values keep power consumption equivalent. |
| Slew Rate | 5 V/µs | 5 V/µs | Slew rate limits large-signal dynamic response; identical values ensure equivalent transient behavior. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Temperature range must cover the application environment; matching ratings confirm equivalent environmental robustness. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8674ARUZ | AD8674ARU |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Amplifier Type | General Purpose | General Purpose |
| Number of Circuits | 4 | 4 |
| Slew Rate | 4V/µs | 4V/µs |
| Gain Bandwidth Product | 10 MHz | 10 MHz |
| Current - Input Bias | 3 nA | 3 nA |
| Voltage - Input Offset | 20 µV | 20 µV |
| Supply Current | 3mA (x4 Channels) | 3mA (x4 Channels) |
| Current - Output / Channel | 20 mA | 20 mA |
| Voltage - Supply Span(Min) | 10 V | 10 V |
| Voltage - Supply Span(Max) | 36 V | 36 V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What is the difference between the AD8674ARUZ and the AD8674ARU?
The AD8674ARUZ and AD8674ARU are both quad precision operational amplifiers from Analog Devices in a 14-lead TSSOP package. The primary difference is the suffix: the "Z" designation on the AD8674ARUZ indicates RoHS-compliant, lead-free construction, while the AD8674ARU is the non-RoHS version. Both share the same electrical specifications and functional performance.
Are the AD8674ARUZ and AD8674ARU electrically identical?
Yes. Both parts are the same AD8674 quad op-amp die with identical electrical specifications, including low offset voltage, low noise, and low input bias current. The only documented difference is the RoHS/lead-free status indicated by the "Z" suffix.
Can the AD8674ARUZ be used as a direct replacement for the AD8674ARU?
Yes, in most cases the AD8674ARUZ is a drop-in replacement for the AD8674ARU because both use the same 14-lead TSSOP package and pinout with identical electrical performance. The AD8674ARUZ is the RoHS-compliant version, so designs requiring lead-free compliance should use the "Z" variant.
What package do the AD8674ARUZ and AD8674ARU use?
Both devices are supplied in a 14-lead TSSOP (Thin Shrink Small Outline Package), designated by the "RU" code in the part number. The package dimensions and pin assignments are the same for both variants.
Why should I choose the AD8674ARUZ over the AD8674ARU?
The AD8674ARUZ is the RoHS-compliant, lead-free version, making it suitable for designs that must meet environmental regulations such as RoHS. The AD8674ARU is the non-RoHS variant and may not be acceptable for markets or customers requiring lead-free compliance.
Are the AD8674ARUZ and AD8674ARU still available for new designs?
Availability should be confirmed against current Analog Devices product lifecycle documentation and authorized distributor stock. The "Z" (RoHS) suffix is generally the preferred ordering option for new designs, while the non-Z variant may have limited availability. Verify current status with DigiKey, Mouser, or the official Analog Devices datasheet before design commitment.
Do the AD8674ARUZ and AD8674ARU share the same operating temperature range?
Yes. Both variants are specified over the same industrial temperature range as defined in the Analog Devices AD8674 datasheet. The RoHS suffix does not affect the temperature specification.