Part A
AD623ARZ-RL
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 2845 PCS
- Package
- SOIC-8
- Series
- Amplificateurs linéaires - instruments, amplificateurs opérationnels, amplificateurs tampons
Replacement verdict
Compatible functional replacement candidate
The AD623ARZ-R7 and AD623ARZ-RL are functionally equivalent instrumentation amplifiers that share identical die, electrical specifications, and package type; the only distinction is tape-and-reel packaging quantity, making them interchangeable for design and production purposes.
Amplifier Architecture
High match
Package Type
High match
Electrical Specifications
High match
Packaging Quantity
Validation required
Parts at a glance
Part B
AD623ARZ-R7
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 5853 PCS
- Package
- SOIC-8
- Series
- Amplificateurs linéaires - instruments, amplificateurs opérationnels, amplificateurs tampons
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD623ARZ-R7 | AD623ARZ-RL | Why it matters |
|---|---|---|---|
| Amplifier Type | Instrumentation Amplifier | Instrumentation Amplifier | Confirms both parts are the same functional device type, ensuring direct substitutability in signal-conditioning circuits. |
| Number of Channels | 1 | 1 | Both provide a single instrumentation amplifier channel, so channel count in the design remains unchanged. |
| Supply Voltage Range | 2.7 V to 12 V (single supply); ±2.7 V to ±6 V (dual supply) | 2.7 V to 12 V (single supply); ±2.7 V to ±6 V (dual supply) | Identical supply flexibility means the same power rail design works for either part. |
| Gain Range | 1 to 1000 (set by external resistor) | 1 to 1000 (set by external resistor) | Matching gain capability ensures the same external gain resistor network can be reused. |
| Input Offset Voltage (max) | 200 µV (at G = 1) | 200 µV (at G = 1) | Equal offset voltage spec means DC accuracy performance is unchanged between the two parts. |
| Gain Bandwidth Product | 800 kHz (G = 1) | 800 kHz (G = 1) | Same bandwidth ensures identical frequency response and dynamic performance in the application. |
| Package / Mounting | 8-SOIC, Surface Mount | 8-SOIC, Surface Mount | Identical package and footprint allow drop-in replacement on the same PCB layout. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Same temperature range guarantees equivalent environmental robustness for industrial applications. |
| Packaging / Reel Quantity | Tape & Reel, 750 units per reel (7-inch reel) | Tape & Reel, 2500 units per reel (13-inch reel) | Different reel quantities affect manufacturing line feed, inventory planning, and minimum order handling, though the devices themselves are functionally identical. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD623ARZ-RL | AD623ARZ-R7 |
|---|---|---|
| Part Status | Active | Active |
| Amplifier Type | Instrumentation | Instrumentation |
| Number of Circuits | 1 | 1 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 0.3V/µs | 0.3V/µs |
| -3 dB Bandwidth | 800 kHz | 800 kHz |
| Current - Input Bias | 17 nA | 17 nA |
| Voltage - Input Offset | 25 µV | 25 µV |
| Supply Current | 375µA | 375µA |
| Voltage - Supply Span(Min) | 2.7 V | 2.7 V |
| Voltage - Supply Span(Max) | 12 V | 12 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 AD623ARZ-R7 and AD623ARZ-RL?
Both are the same AD623 instrumentation amplifier die in an 8-lead SOIC package (R-8 suffix), differing only in packaging format: AD623ARZ-R7 is supplied in 7-inch reels with 750 pieces per reel, while AD623ARZ-RL is supplied in 13-inch reels with 2,500 pieces per reel. Electrical specifications are identical.
Are AD623ARZ-R7 and AD623ARZ-RL electrically and functionally interchangeable?
Yes. Both variants share the same AD623ARZ part number core, meaning identical silicon, grade, and 8-lead SOIC package. They differ only in reel size and quantity per reel, so they are interchangeable in circuit design and assembly.
What are the key specifications of the AD623?
The AD623 is a single-supply instrumentation amplifier with rail-to-rail output swing, a gain set by a single external resistor (G = 1 to 1000), low offset voltage, and low power consumption. It operates from a single supply of 2.7 V to 12 V or dual supplies of ±2.5 V to ±6 V, with a typical supply current of 375 µA and a gain bandwidth of 800 kHz at G = 1.
Which reel quantity should I order for production versus prototyping?
AD623ARZ-R7 (750 pieces per 7-inch reel) suits prototyping, pilot runs, and low-to-medium volume production. AD623ARZ-RL (2,500 pieces per 13-inch reel) is intended for higher-volume automated assembly where fewer reel changes and longer feeder run times are beneficial.
Do both variants meet the same moisture sensitivity and soldering requirements?
Yes. Since both are the same AD623ARZ device in the same 8-lead SOIC package, they share identical package-level characteristics, including moisture sensitivity level and reflow soldering profile as specified in the Analog Devices datasheet and packaging information.
Can AD623ARZ-R7 and AD623ARZ-RL be mixed on the same PCB assembly line?
Yes. Because the packaged device is identical, either reel format can be loaded into the same feeder and placement program without changes to the PCB land pattern, stencil, or reflow profile. Only reel size and feeder compatibility differ.
What is the gain-setting configuration for the AD623?
Gain is programmed with a single resistor connected between the RG pins, following the datasheet relationship G = 1 + (100 kΩ / RG). With RG open, the device operates at G = 1; installing RG sets gains up to 1000 as specified in the Analog Devices datasheet.