Part A
AD623ARMZ-REEL7
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 3627 PCS
- Package
- MSOP-8
- Series
- Amplificateurs linéaires - instruments, amplificateurs opérationnels, amplificateurs tampons
Replacement verdict
Compatible functional replacement candidate
The AD623ARMZ-REEL7 and AD623ARM are functionally equivalent instrumentation amplifiers sharing the same core die, package, and electrical specifications; the REEL7 suffix denotes tape-and-reel packaging only, making the two part numbers interchangeable for design and production purposes.
Amplifier Function
High match
Package Type
High match
Electrical Specifications
High match
Packaging Format
Validation required
Parts at a glance
Part B
AD623ARM
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 5473 PCS
- Package
- TSSOP-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 | AD623ARMZ-REEL7 | AD623ARM | Why it matters |
|---|---|---|---|
| Amplifier Type | Instrumentation Amplifier | Instrumentation Amplifier | Both are single-supply instrumentation amplifiers, so the core function is identical for signal conditioning. |
| Number of Channels | 1 | 1 | Channel count must match the circuit design; both provide a single amplifier channel. |
| Supply Voltage Range | 2.7 V to 12 V (single supply) | 2.7 V to 12 V (single supply) | The supply range determines compatibility with the system power rail; identical ranges allow direct substitution. |
| Gain Range | 1 to 1000 (set by external resistor) | 1 to 1000 (set by external resistor) | Gain flexibility via a single external resistor is a key functional characteristic for sensor signal scaling. |
| Input Offset Voltage (max) | 200 µV | 200 µV | Offset voltage affects DC accuracy; matching values ensure equivalent precision performance. |
| Package / Mounting | 8-Lead SOIC (surface mount) | 8-Lead MSOP (surface mount) | Different package footprints require PCB layout changes, so they are not drop-in replacements despite identical electrical function. |
| Packaging / Delivery Form | Tape and Reel (REEL7) | Tube / bulk | Packaging form affects assembly line handling and inventory; reel vs tube matters for automated pick-and-place production. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Both cover the industrial temperature range, confirming suitability for the same environmental conditions. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD623ARMZ-REEL7 | AD623ARM |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| 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 | 200 µV | 200 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 AD623ARMZ-REEL7 and AD623ARM?
Both are instrumentation amplifiers from Analog Devices in the same 8-lead MSOP (RM) package with identical electrical specifications. The AD623ARMZ-REEL7 is the RoHS-compliant (Z suffix) version supplied on a 7-inch tape-and-reel for automated assembly, while AD623ARM is the non-RoHS tube/rail version. The core die and performance are the same; the differences are packaging format and RoHS compliance.
Are AD623ARMZ-REEL7 and AD623ARM electrically interchangeable?
Yes. Both share the same AD623 die, pinout, and specified electrical performance (single-supply instrumentation amplifier with rail-to-rail output, gain set by a single external resistor). The only differences are the RoHS-compliant "Z" designation and the reel packaging of the REEL7 variant, so they are functionally interchangeable in a given design.
What package do AD623ARMZ-REEL7 and AD623ARM use?
Both parts are supplied in the 8-lead MSOP package, indicated by the "RM" code in the part number. The PCB land pattern and pinout are identical between the two variants.
Does the "Z" suffix in AD623ARMZ-REEL7 indicate a different specification?
No. The "Z" suffix denotes RoHS compliance (lead-free, RoHS-compliant construction) per Analog Devices part-numbering convention. It does not indicate a different electrical grade or performance level; the AD623ARM is the non-RoHS equivalent.
What does REEL7 mean in AD623ARMZ-REEL7?
REEL7 indicates the device is supplied on a 7-inch tape-and-reel carrier, which is intended for high-volume automated pick-and-place assembly. AD623ARM, by contrast, is supplied in tube/rail packaging.
Can AD623ARM be used as a drop-in replacement for AD623ARMZ-REEL7?
Electrically and mechanically yes, since both use the same die and 8-lead MSOP package. However, if the assembly process or end product requires RoHS compliance, AD623ARM (non-RoHS) would not satisfy that requirement, so the RoHS-compliant AD623ARMZ-REEL7 should be used instead.
Do both variants share the same gain-setting configuration?
Yes. Both are AD623 instrumentation amplifiers whose gain is programmed by a single external resistor connected between the RG pins, using the same gain equation. Because the die is identical, the gain-setting behavior is the same for both part numbers.