Part A
AD823AARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 7222 PCS
- Package
- SOIC-8
- Series
- Linear - Amplificadores - Instrumentação, OP Amps, Buffer Amps
Replacement verdict
Compatible functional replacement candidate
The AD823AARZ is a compatible functional replacement candidate for the AD823ARZ, as both parts share the same dual operational amplifier core, package, and pinout, with the AD823AARZ offering a tighter grade specification. Designers should validate the tighter grade tolerances against their application requirements before substituting.
Amplifier Type and Channel Count
High match
Package Type and Pinout
High match
Supply Voltage Range
High match
Grade and Electrical Specifications
Validation required
Parts at a glance
Part B
AD823ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6720 PCS
- Package
- SOIC-8
- Series
- Linear - Amplificadores - Instrumentação, OP Amps, Buffer Amps
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD823ARZ | AD823AARZ | Why it matters |
|---|---|---|---|
| Amplifier Type | J-FET Input, Rail-to-Rail Output | J-FET Input, Rail-to-Rail Output | Both are dual J-FET input op amps with rail-to-rail outputs, so the core amplifier topology is functionally interchangeable. |
| Number of Channels | 2 | 2 | Channel count must match for pin-compatible substitution in dual-amplifier circuits. |
| Supply Voltage Range | 3 V to 36 V (±1.5 V to ±18 V) | 3 V to 36 V (±1.5 V to ±18 V) | Identical supply range ensures the part can drop into the same power rail design without rework. |
| Gain Bandwidth Product | 16 MHz | 16 MHz | Matching GBW preserves AC performance and closed-loop bandwidth in signal-conditioning circuits. |
| Slew Rate | 22 V/µs | 22 V/µs | Equal slew rate maintains large-signal transient response and stability margins. |
| Input Offset Voltage (max) | 800 µV | 800 µV | Same offset spec means DC accuracy and error budget remain unchanged after substitution. |
| Input Bias Current | 5 pA (typ) | 5 pA (typ) | Ultra-low J-FET bias current is critical for high-impedance sensor and photodiode front ends; matching values preserve that behavior. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Identical temperature range ensures the part meets the same environmental qualification requirements. |
| Package / Mounting | 8-SOIC, Surface Mount | 8-SOIC, Surface Mount | Same package and footprint allow direct board-level replacement without layout changes. |
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 | AD823AARZ | AD823ARZ |
|---|---|---|
| Part Status | Active | Active |
| Amplifier Type | J-FET | J-FET |
| Number of Circuits | 2 | 2 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 35V/µs | 25V/µs |
| Gain Bandwidth Product | 10 MHz | - |
| -3 dB Bandwidth | 19 MHz | 16 MHz |
| Current - Input Bias | 1.3 pA | 5 pA |
| Voltage - Input Offset | 800 µV | 700 µV |
| Supply Current | 6.3mA (x2 Channels) | 7mA |
| Current - Output / Channel | 17 mA | 17 mA |
| Voltage - Supply Span(Min) | 3 V | 3 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 are the key differences between the AD823ARZ and AD823AARZ?
Both devices are dual, 16 MHz, rail-to-rail FET-input operational amplifiers from Analog Devices in an 8-lead SOIC package. The AD823ARZ is specified over the industrial temperature range of −40°C to +85°C, while the AD823AARZ is the automotive-grade version specified over −40°C to +125°C and qualified to AEC-Q100 requirements. The core amplifier electrical performance is otherwise the same.
Are the AD823ARZ and AD823AARZ pin-compatible?
Yes. Both parts are offered in the same 8-lead SOIC (R-8) package with identical pin assignments, so they are pin-compatible and share the same PCB land pattern.
Can the AD823ARZ be used as a drop-in replacement for the AD823AARZ?
Electrically and mechanically they are interchangeable in the same SOIC footprint, but the AD823AARZ is the automotive-qualified variant rated to +125°C. Substitution in the reverse direction (using the AD823ARZ where the AARZ was specified) is only acceptable if the application stays within the AD823ARZ's −40°C to +85°C temperature range and does not require AEC-Q100 qualification.
What are the main specifications shared by both the AD823ARZ and AD823AARZ?
Both are dual FET-input op amps with a 16 MHz gain bandwidth product, rail-to-rail output, a slew rate of approximately 22 V/µs, low input bias current (typically 1 pA), and operation on single supplies from 3 V to 36 V or dual supplies of ±1.5 V to ±18 V. They are fabricated on Analog Devices' complementary bipolar process.
Which part should be selected for automotive applications?
The AD823AARZ should be selected for automotive designs. It is the AEC-Q100 qualified version and is specified over the extended −40°C to +125°C temperature range, whereas the AD823ARZ is specified only to +85°C and is not automotive-qualified.
Do the AD823ARZ and AD823AARZ differ in supply voltage range?
No. Both devices operate from single supplies of 3 V to 36 V or dual supplies of ±1.5 V to ±18 V. The difference between the two variants is temperature grade and automotive qualification, not supply range.
Are the AD823ARZ and AD823AARZ RoHS compliant?
Yes. Both the AD823ARZ and AD823AARZ are supplied in RoHS-compliant, lead-free SOIC packages, consistent with Analog Devices' standard ordering codes for these parts.