Part A
AD823AR
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3906 PCS
- Package
- SOIC-8
- Series
- Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
Replacement verdict
Compatible functional replacement candidate
The AD823ARZ-RL and AD823AR are functionally equivalent operational amplifiers sharing identical core electrical specifications, package footprint, and temperature range. The AD823ARZ-RL is the tape-and-reel packaged variant of the AD823AR, making it a suitable drop-in replacement for automated assembly processes while maintaining full electrical and mechanical compatibility.
Amplifier Type and Channel Count
High match
Package Type and Pinout
High match
Supply Voltage and Bandwidth
High match
Operating Temperature Range
High match
Parts at a glance
Part B
AD823ARZ-RL
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 7052 PCS
- Package
- SOIC-8
- Series
- Linear - Amplifiers - Instrumentation, 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-RL | AD823AR | Why it matters |
|---|---|---|---|
| Amplifier Type | J-FET Input, Rail-to-Rail Output | J-FET Input, Rail-to-Rail Output | Identical topology ensures the same signal conditioning behavior and input characteristics in a circuit. |
| Number of Channels | 2 | 2 | Channel count must match for pin-compatible drop-in replacement in dual-amplifier designs. |
| Gain Bandwidth Product | 16 MHz | 16 MHz | Determines the maximum usable frequency for closed-loop gain; matching values preserve AC performance. |
| Input Offset Voltage (max) | 800 µV | 800 µV | Offset directly affects DC accuracy; identical limits mean no recalibration is needed when substituting. |
| 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) | Compatible supply range ensures the part operates safely in the same power rail configuration. |
| Input Bias Current (typ) | 3 pA | 3 pA | Ultra-low J-FET bias current is critical for high-impedance sensor and photodiode front ends; matching preserves accuracy. |
| Slew Rate | 22 V/µs | 22 V/µs | Slew rate governs large-signal transient response; identical values maintain dynamic behavior. |
| Package / Mounting | 8-SOIC, Surface Mount | 8-SOIC, Surface Mount | Same package and footprint allow direct board-level replacement without layout changes. |
| Packaging / Ordering Format | Tape & Reel (RL) | Tube / Bulk | Delivery format differs for automated assembly versus prototyping; the silicon is functionally identical. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Matching temperature ratings ensure equivalent reliability across the application's environmental range. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD823AR | AD823ARZ-RL |
|---|---|---|
| Part Status | Obsolete | Active |
| Amplifier Type | J-FET | J-FET |
| Number of Circuits | 2 | 2 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 25V/µs | 25V/µs |
| -3 dB Bandwidth | 16 MHz | 16 MHz |
| Current - Input Bias | 5 pA | 5 pA |
| Voltage - Input Offset | 700 µV | 700 µV |
| Supply Current | 7mA | 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 is the difference between AD823ARZ-RL and AD823AR?
Both parts are the same AD823 dual operational amplifier die in an 8-lead SOIC package. The AD823ARZ-RL is the tape-and-reel packaging variant (RL denotes reel), while AD823AR is the tube/tray packaging variant. The "Z" suffix in AD823ARZ-RL indicates RoHS-compliant lead finish, whereas the AD823AR is the non-RoHS legacy ordering code. Electrical performance is identical between the two.
Are AD823ARZ-RL and AD823AR electrically interchangeable?
Yes. Both ordering codes refer to the same AD823 dual op-amp with identical electrical specifications, including 16 MHz gain bandwidth, 35 V/µs slew rate, and 1.9 mA supply current per amplifier. The only differences are packaging format and RoHS compliance status, so they are electrically interchangeable in circuit design.
What is the difference between the "Z" and non-"Z" suffixes on these part numbers?
The "Z" suffix denotes RoHS-compliant construction with a lead-free finish, per Analog Devices ordering conventions. AD823ARZ-RL is RoHS-compliant, while AD823AR is the non-RoHS version. Designs requiring RoHS compliance should use the Z-suffixed part.
What does the "RL" suffix mean on AD823ARZ-RL?
"RL" indicates tape-and-reel packaging, typically 2,500 units per 13-inch reel, intended for automated pick-and-place assembly. AD823AR without the RL suffix is supplied in tube packaging. The reel option affects handling and assembly logistics, not device performance.
What are the key specifications of the AD823?
The AD823 is a dual, 16 MHz, rail-to-rail FET-input operational amplifier. Key verified parameters include 16 MHz gain bandwidth product, 35 V/µs slew rate, low input bias current (typically 5 pA at room temperature), rail-to-rail output swing, and single-supply operation from 3 V to 36 V (or ±1.5 V to ±18 V dual supply). It is specified for the −40 °C to +85 °C industrial temperature range.
Can AD823AR be used as a drop-in replacement for AD823ARZ-RL on an existing PCB?
Yes, from an electrical and footprint standpoint. Both are 8-lead SOIC devices with identical pinouts and package dimensions. However, if the assembly process or product compliance requires RoHS-compliant components, AD823AR (non-RoHS) should not be substituted for AD823ARZ-RL. Verify your compliance requirements before substituting.
Which part number should be ordered for high-volume automated assembly?
AD823ARZ-RL is the appropriate choice for high-volume automated assembly because it is supplied in tape-and-reel format compatible with pick-and-place equipment, and it is RoHS-compliant. AD823AR in tube packaging is better suited to low-volume or manual assembly.
Do AD823ARZ-RL and AD823AR differ in temperature range or accuracy grade?
No. Both ordering codes correspond to the same A-grade AD823 device specified over the −40 °C to +85 °C industrial temperature range. Neither part number denotes a different accuracy or temperature grade; the suffixes only distinguish packaging and RoHS status.