Part A
AD8604ARUZ
아날로그 디바이스(주)
- Lifecycle
- Active
- Stock
- 3528 PCS
- Package
- TSSOP-14
- Series
- 선형 증폭기 - 계측기, 연산 증폭기, 완충 증폭기
Replacement verdict
Compatible functional replacement candidate
The AD8604ARUZ and AD8602DRM-REEL are both quad/dual CMOS rail-to-rail operational amplifiers from the same Analog Devices AD860x family, sharing identical per-channel AC and DC characteristics. The AD8604ARUZ offers four channels in a TSSOP-14 package, while the AD8602DRM-REEL provides two channels in an MSOP-8 package, making them functionally interchangeable only where channel count and board footprint permit. Designers must confirm channel count, package footprint, and thermal environment before substituting one for the other.
Channel Count
Validation required
Package Type
Validation required
Amplifier Characteristics
High match
Supply Voltage Range
High match
Parts at a glance
Part B
AD8602DRM-REEL
아날로그 디바이스(주)
- Lifecycle
- Active
- Stock
- 8665 PCS
- Package
- TSSOP-8
- Series
- 선형 증폭기 - 계측기, 연산 증폭기, 완충 증폭기
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8604ARUZ | AD8602DRM-REEL | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 4 (Quad) | 2 (Dual) | Channel count determines how many independent signal paths can be processed; a quad and a dual are not directly interchangeable in multi-channel designs. |
| Package / Mounting | 14-Lead TSSOP (Surface Mount) | 8-Lead MSOP (Surface Mount) | Different package footprints and pin counts require different PCB layouts, so they cannot be dropped into the same board location. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Matching supply ranges ensure both parts operate correctly in the same single-supply system without level shifting. |
| Gain Bandwidth Product | 8.4 MHz | 8.4 MHz | GBW sets the maximum usable signal frequency for a given closed-loop gain; identical values mean comparable AC performance. |
| Input Offset Voltage (Max) | 750 µV | 750 µV | Offset voltage directly affects DC accuracy; equal limits mean similar precision in low-frequency and sensor applications. |
| Input Bias Current | 1 pA (typ) | 1 pA (typ) | Very low CMOS input bias current minimizes errors in high-impedance circuits such as photodiode and pH sensor front ends. |
| Quiescent Supply Current per Amplifier | 1.2 mA (typ) | 1.2 mA (typ) | Quiescent current drives power budget in battery-powered designs; matching values indicate equivalent power consumption per channel. |
| Slew Rate | 5 V/µs | 5 V/µs | Slew rate limits large-signal transient response; identical values mean comparable behavior in fast switching and pulse circuits. |
| Rail-to-Rail Input/Output | Yes (RRIO) | Yes (RRIO) | Rail-to-rail I/O maximizes dynamic range in low-voltage supplies, allowing signals to swing close to both rails. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Identical temperature ratings confirm both parts are suitable for the same industrial and automotive environments. |
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Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8604ARUZ | AD8602DRM-REEL |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Series | DigiTrim® | DigiTrim® |
| Part Status | Active | Obsolete |
| Amplifier Type | CMOS | CMOS |
| Number of Circuits | 4 | 2 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 6V/µs | 6V/µs |
| Gain Bandwidth Product | 8.4 MHz | 8.4 MHz |
| Current - Input Bias | 0.2 pA | 0.2 pA |
| Voltage - Input Offset | 80 µV | 1.3 mV |
| Supply Current | 750µA (x4 Channels) | 750µA (x2 Channels) |
| Current - Output / Channel | 50 mA | 50 mA |
| Voltage - Supply Span(Min) | 2.7 V | 2.7 V |
| Voltage - Supply Span(Max) | 5.5 V | 5.5 V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the key differences between the AD8604ARUZ and AD8602DRM-REEL?
The AD8604ARUZ is a quad-channel operational amplifier in a 14-lead TSSOP package, while the AD8602DRM-REEL is a dual-channel operational amplifier in an 8-lead MSOP package supplied on tape and reel. Both are rail-to-rail input/output CMOS amplifiers from Analog Devices, but they differ in channel count, package type, and packaging format.
Are the AD8604ARUZ and AD8602DRM-REEL electrically identical per channel?
Yes. Both devices belong to the AD860x family and share the same core amplifier design, featuring rail-to-rail input and output, low offset voltage, and low input bias current. Per-channel electrical performance is essentially the same; the primary differences are channel count and package.
Can the AD8602DRM-REEL be used as a drop-in replacement for the AD8604ARUZ?
No. The AD8604ARUZ is a quad amplifier in a 14-lead TSSOP, whereas the AD8602DRM-REEL is a dual amplifier in an 8-lead MSOP. The pin counts, pin functions, and PCB land patterns differ, so a direct drop-in substitution is not possible without a board redesign.
What are the supply voltage and operating temperature ranges for these amplifiers?
Both the AD8604ARUZ and AD8602DRM-REEL operate from a single supply of 2.7 V to 5.5 V (or dual supplies within that range) and are specified over the industrial temperature range of −40°C to +125°C, per Analog Devices datasheet specifications.
What packaging format does the AD8602DRM-REEL use?
The AD8602DRM-REEL is supplied in an 8-lead MSOP package on tape and reel, which is suited to automated high-volume assembly. The AD8604ARUZ is supplied in a 14-lead TSSOP tube or tray format depending on ordering option.
Which device should be selected for a design requiring four amplifier channels?
The AD8604ARUZ should be selected, as it integrates four amplifiers in a single 14-lead TSSOP package, reducing board space and component count compared with using two AD8602DRM-REEL dual amplifiers.
Are both devices suitable for low-power precision signal conditioning?
Yes. Both the AD8604ARUZ and AD8602DRM-REEL are CMOS rail-to-rail amplifiers with low offset voltage and low input bias current, making them suitable for low-power precision signal conditioning, sensor interfacing, and filter applications within their specified supply and temperature ranges.