Part A
AD823AR
ADI公司
- Lifecycle
- Active
- Stock
- 3906 件
- Package
- SOIC-8
- 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 AD823ARZ-R7 and AD823AR are functionally equivalent dual operational amplifiers sharing the same core die, package footprint, and electrical specifications; the -R7 suffix denotes tape-and-reel packaging only, making the AD823ARZ-R7 a direct drop-in replacement for the AD823AR in automated assembly environments.
Amplifier Core Specifications
High match
Package and Pinout
High match
Operating Temperature Range
High match
Packaging Format
Validation required
Parts at a glance
Part B
AD823ARZ-R7
ADI公司
- Lifecycle
- Active
- Stock
- 2865 件
- Package
- SOIC-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 | AD823ARZ-R7 | AD823AR | Why it matters |
|---|---|---|---|
| Amplifier Type | J-FET Input, Rail-to-Rail Output | J-FET Input, Rail-to-Rail Output | Confirms both parts share the same core amplifier topology, essential for functional substitutability. |
| Number of Channels | 2 | 2 | Channel count must match for the replacement to fit the same circuit footprint and signal paths. |
| Gain Bandwidth Product | 16 MHz | 16 MHz | Determines the maximum usable frequency; identical GBW ensures equivalent AC performance. |
| Slew Rate | 22 V/µs | 22 V/µs | Affects large-signal transient response; matching slew rate preserves dynamic behavior. |
| Input Offset Voltage (max) | 800 µV | 800 µV | DC accuracy depends on offset; identical limits ensure comparable precision in signal chains. |
| 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) | Must match the system supply rails for the part to operate safely in the same design. |
| Input Bias Current | 5 pA (typ) | 5 pA (typ) | Low bias current is critical for high-impedance sensor interfaces; matching values preserve accuracy. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Ensures both parts meet the same environmental requirements for the target application. |
| Package / Mounting | 8-SOIC, Surface Mount, Tape & Reel | 8-SOIC, Surface Mount, Tube | Same package footprint allows drop-in replacement, but packaging format differs for assembly handling. |
| Packaging / Ordering Format | Tape & Reel (R7 suffix) | Tube | Affects pick-and-place manufacturing versus manual handling; functionally identical but differs in supply form. |
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 | AD823AR | AD823ARZ-R7 |
|---|---|---|
| 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-R7 and AD823AR?
Both are the same AD823 dual operational amplifier die from Analog Devices. The AD823AR is supplied in a 8-lead SOIC tube (bulk) packaging, while AD823ARZ-R7 is the RoHS-compliant version supplied in 8-lead SOIC tape-and-reel packaging (7-inch reel, 750 pieces per reel). The "Z" suffix denotes RoHS compliance, and "-R7" denotes the tape-and-reel packaging option.
Are AD823ARZ-R7 and AD823AR electrically and functionally interchangeable?
Yes. Both parts share the same AD823 datasheet specifications: dual JFET-input operational amplifier, 16 MHz gain bandwidth, 35 V/µs slew rate, 5 pA input bias current, and 8-lead SOIC package. The only differences are RoHS compliance (Z suffix) and packaging format (tape-and-reel vs tube).
Is AD823ARZ-R7 RoHS compliant while AD823AR is not?
Yes. The "Z" in AD823ARZ-R7 indicates the RoHS-compliant lead-free (Pb-free) package variant per Analog Devices part numbering. The AD823AR is the non-RoHS legacy ordering code. Designers requiring RoHS compliance should specify the AD823ARZ-R7 or other Z-suffix variants.
What is the difference in packaging quantity between the two parts?
AD823AR is supplied in 8-lead SOIC tubes, typically 98 pieces per tube. AD823ARZ-R7 is supplied on a 7-inch tape-and-reel with 750 pieces per reel, suitable for automated pick-and-place assembly lines.
Can AD823ARZ-R7 be used as a drop-in replacement for AD823AR in an existing design?
Yes, from an electrical and footprint standpoint. Both use the same 8-lead SOIC (R-8) package with identical pinout and land pattern. The substitution is valid provided the assembly process accepts RoHS-compliant lead-free terminations and the design does not require the non-RoHS tube packaging.
What are the key specifications shared by AD823ARZ-R7 and AD823AR?
Both are dual JFET-input op amps with 16 MHz gain bandwidth product, 35 V/µs slew rate, 5 pA typical input bias current, 800 µV maximum input offset voltage, 2.5 mA typical supply current per amplifier, and operation from a single supply of 3 V to 36 V or dual supplies of ±1.5 V to ±18 V, in an 8-lead SOIC package.
Which part should be selected for automated high-volume production?
AD823ARZ-R7 is preferred for automated high-volume SMT production because it is supplied in tape-and-reel format compatible with pick-and-place equipment and is RoHS compliant. AD823AR in tubes is more suited to low-volume or prototyping use.
Do both parts operate over the same temperature range?
Yes. Both AD823ARZ-R7 and AD823AR are specified over the industrial temperature range of −40 °C to +85 °C, as defined in the Analog Devices AD823 datasheet for the R-grade SOIC package.