Part A
AD8534ARUZ
ADI公司
- Lifecycle
- Active
- Stock
- 5479 件
- Package
- TSSOP-14
- Series
- 線性放大器-儀器、運算放大器、緩衝放大器
Replacement verdict
Compatible functional replacement candidate
The AD8534ARUZ and AD8532ARMZ-R2 are both quad and dual low-voltage rail-to-rail operational amplifiers from the same AD853x family, sharing identical per-channel electrical characteristics. The primary functional difference is channel count, so the AD8534ARUZ can serve as a higher-density substitute where a dual device is specified, provided the board layout accommodates the different package and pinout. Designers should validate footprint, channel count, and thermal considerations before committing to the substitution.
Channel Count
Validation required
Package Type
Not compatible
Supply Voltage Range
High match
Amplifier Characteristics
High match
Parts at a glance
Part B
AD8532ARMZ-R2
ADI公司
- Lifecycle
- Active
- Stock
- 8257 件
- Package
- TSSOP-8
- Series
- 線性放大器-儀器、運算放大器、緩衝放大器
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8534ARUZ | AD8532ARMZ-R2 | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 4 (Quad) | 2 (Dual) | Channel count determines how many independent signal paths can be processed; a quad and a dual are not directly interchangeable in a given circuit. |
| Package / Case | 14-TSSOP | 8-MSOP | Footprint and pin count must match the PCB layout; different packages require board redesign and cannot be drop-in substituted. |
| Supply Voltage Range | 2.7 V to 6 V | 2.7 V to 6 V | Both operate over the same single-supply range, so system power rails are compatible for either device. |
| Gain Bandwidth Product | 3 MHz | 3 MHz | Identical bandwidth means AC signal handling and stability characteristics are equivalent between the two parts. |
| Slew Rate | 5 V/µs | 5 V/µs | Matching slew rate ensures comparable large-signal transient response and distortion behavior. |
| Input Offset Voltage (max) | 25 mV | 25 mV | Equal offset voltage limits mean DC accuracy and error budgets are the same for both amplifiers. |
| Input Bias Current | 1 pA (typ) | 1 pA (typ) | Very low, matched input bias current suits high-impedance sensor interfaces equally for both parts. |
| Output Current per Amplifier | 250 mA | 250 mA | High, identical output drive capability supports similar load-driving applications for either device. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Same industrial temperature range means both are suitable for the same environmental conditions. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8534ARUZ | AD8532ARMZ-R2 |
|---|---|---|
| Part Status | Active | Discontinued at Digi-Key |
| Amplifier Type | General Purpose | General Purpose |
| Number of Circuits | 4 | 2 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 5V/µs | 5V/µs |
| Gain Bandwidth Product | 3 MHz | 3 MHz |
| Current - Input Bias | 5 pA | 5 pA |
| Voltage - Input Offset | 25 mV | 25 mV |
| Supply Current | 750µA (x4 Channels) | 750µA (x2 Channels) |
| Current - Output / Channel | 250 mA | 250 mA |
| Voltage - Supply Span(Min) | 2.7 V | 2.7 V |
| Voltage - Supply Span(Max) | 6 V | 6 V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the key differences between the AD8534ARUZ and AD8532ARMZ-R2?
The AD8534ARUZ is a quad-channel operational amplifier in a 14-lead TSSOP package, while the AD8532ARMZ-R2 is a dual-channel operational amplifier in an 8-lead MSOP package. Both are rail-to-rail input/output CMOS amplifiers from Analog Devices with similar per-channel performance, but they differ in channel count, package type, and pin configuration.
Are the AD8534ARUZ and AD8532ARMZ-R2 electrically identical on a per-channel basis?
Yes. Both devices share the same core amplifier design and are specified with comparable per-channel parameters, including a 3 MHz gain bandwidth product, 5 V/µs slew rate, and rail-to-rail input and output swing. The primary distinction is the number of integrated channels and the package footprint.
Can the AD8532ARMZ-R2 be used as a drop-in replacement for the AD8534ARUZ?
No. The AD8534ARUZ provides four amplifiers in a 14-lead TSSOP package, whereas the AD8532ARMZ-R2 provides two amplifiers in an 8-lead MSOP package. The pin counts, pin functions, and PCB land patterns are different, so a direct drop-in substitution is not possible without a board redesign.
What supply voltage range do the AD8534ARUZ and AD8532ARMZ-R2 support?
Both devices operate from a single supply of 2.7 V to 6 V, or from dual supplies of ±1.35 V to ±3 V. This makes them suitable for low-voltage, battery-powered, and portable signal-conditioning applications.
What are the package and pin-count differences between the two parts?
The AD8534ARUZ is supplied in a 14-lead TSSOP (RU suffix) package housing four operational amplifiers. The AD8532ARMZ-R2 is supplied in an 8-lead MSOP (RM suffix) package housing two operational amplifiers, with the R2 suffix indicating tape-and-reel packaging.
Do both parts feature rail-to-rail input and output operation?
Yes. Both the AD8534ARUZ and AD8532ARMZ-R2 are rail-to-rail input and output (RRIO) CMOS amplifiers, allowing signal swing close to both supply rails, which maximizes dynamic range in low-voltage designs.
Which part should be selected for a design requiring four amplifier channels in the smallest footprint?
The AD8534ARUZ should be selected when four channels are required, since it integrates four amplifiers in a single 14-lead TSSOP package. Using two AD8532ARMZ-R2 devices would require two 8-lead MSOP packages and additional board area, so the quad device is the more integrated solution for four-channel requirements.
Are the AD8534ARUZ and AD8532ARMZ-R2 specified over the same operating temperature range?
Both devices are specified for the industrial temperature range of −40 °C to +85 °C, making them suitable for industrial and commercial signal-conditioning applications requiring consistent performance across temperature.