Part A
AD8617ARMZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2547 PCS
- Package
- MSOP-8
- Series
- Linear - Amplificadores - Instrumentação, OP Amps, Buffer Amps
Replacement verdict
Not a drop-in replacement
The AD8617ARMZ and AD8610ARM-R2 are not drop-in replacements for one another. Although both are precision CMOS operational amplifiers in the same 8-lead MSOP package, they differ fundamentally in supply voltage range, quiescent current, gain bandwidth, and input bias current, so the AD8610ARM-R2 cannot be substituted directly for the AD8617ARMZ without circuit redesign and revalidation.
Different supply voltage range
Different quiescent current
Different gain bandwidth
Different input bias current
Parts at a glance
Part B
AD8610ARM-R2
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5510 PCS
- Package
- TSSOP-8
- Series
- Linear - Amplificadores - Instrumentação, 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 | AD8617ARMZ | AD8610ARM-R2 | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 (Dual) | 1 (Single) | Channel count determines whether the part can directly replace the other in a circuit; a dual cannot substitute a single without layout changes. |
| Input Offset Voltage (Max) | 65 µV | 150 µV | Lower offset voltage improves DC precision; a difference affects accuracy in precision signal-conditioning applications. |
| Input Bias Current (Typ) | 0.2 pA | 3 pA | Bias current impacts error in high-impedance circuits; both are low but differ, affecting precision with large source impedances. |
| Gain Bandwidth Product | 1.5 MHz | 25 MHz | GBW sets the achievable closed-loop bandwidth; the much higher GBW of the AD8610 makes it suitable for faster signal paths. |
| Slew Rate | 0.5 V/µs | 50 V/µs | Slew rate limits large-signal response speed; the AD8610 handles much faster transients than the AD8617. |
| Supply Voltage Range | 1.8 V to 5 V | ±5 V to ±13 V | Operating supply range determines compatibility with the system rail; the two parts target very different supply domains. |
| Supply Current per Amplifier (Typ) | 38 µA | 3.5 mA | Quiescent current drives power budget; the AD8617 is a micropower part while the AD8610 draws far more current. |
| Input Voltage Noise Density (Typ) | 22 nV/√Hz | 6 nV/√Hz | Lower noise density improves SNR in low-level signal applications; the AD8610 offers significantly lower noise. |
| Package | 8-Lead MSOP | 8-Lead MSOP | Package footprint affects board layout; identical package type allows similar physical placement though pinout differs. |
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 | AD8617ARMZ | AD8610ARM-R2 |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Amplifier Type | CMOS | J-FET |
| Number of Circuits | 2 | 1 |
| Slew Rate | 0.1V/µs | 60V/µs |
| Gain Bandwidth Product | 400 kHz | 25 MHz |
| Current - Input Bias | 0.2 pA | 3 pA |
| Voltage - Input Offset | 400 µV | 85 µV |
| Supply Current | 38µA | 3mA |
| Current - Output / Channel | 80 mA | 45 mA |
| Voltage - Supply Span(Min) | 1.8 V | 10 V |
| Voltage - Supply Span(Max) | 5 V | 26 V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Output Type | Rail-to-Rail | - |
Frequently asked questions
Are the AD8617ARMZ and AD8610ARM-R2 interchangeable in an existing design?
No, they are not direct substitutes. The AD8617ARMZ is a dual, low-power, rail-to-rail input/output CMOS operational amplifier specified for 1.8 V to 5 V supplies, while the AD8610ARM-R2 is a single, precision, low-noise JFET-input op amp specified for ±5 V to ±13 V supplies. Supply range, channel count, input bias current, and package pinout differ, so a board-level redesign and full specification review are required before any substitution.
What are the supply voltage requirements for each part?
The AD8617ARMZ operates from a single supply of 1.8 V to 5 V (or equivalent dual supplies within that total). The AD8610ARM-R2 is specified for dual supplies of ±5 V to ±13 V. The AD8617ARMZ cannot be operated at the higher bipolar supply voltages of the AD8610ARM-R2, and the AD8610ARM-R2 is not specified for the low single-supply voltages used by the AD8617ARMZ.
How do the channel counts and package pinouts compare?
The AD8617ARMZ is a dual operational amplifier in an 8-lead MSOP (RM) package. The AD8610ARM-R2 is a single operational amplifier in an 8-lead MSOP (RM) package, supplied on tape and reel. Because one device is dual and the other is single, the pin functions and PCB land patterns are not equivalent, and the AD8610ARM-R2 cannot be dropped into a socket wired for the AD8617ARMZ.
How do the input characteristics differ between the AD8617ARMZ and AD8610ARM-R2?
The AD8617ARMZ uses a CMOS input stage with rail-to-rail input capability and very low input bias current, making it suitable for high-impedance and low-voltage signal chains. The AD8610ARM-R2 uses a JFET input stage with low input bias current and low voltage noise, optimized for precision amplification at higher bipolar supply voltages. The input common-mode range and bias current behavior are therefore not equivalent between the two devices.
Which part is better suited for low-power, battery-operated designs?
The AD8617ARMZ is the more appropriate choice for low-voltage, battery-operated designs because it is specified for 1.8 V to 5 V single-supply operation with low quiescent current per amplifier. The AD8610ARM-R2 requires bipolar supplies of ±5 V to ±13 V and is intended for precision, low-noise applications rather than micropower portable designs.
Which part is intended for precision, low-noise signal conditioning?
The AD8610ARM-R2 is the precision, low-noise JFET-input amplifier intended for high-accuracy signal conditioning at bipolar supplies. The AD8617ARMZ is a general-purpose, low-power CMOS rail-to-rail amplifier. Selection depends on the required noise floor, supply architecture, and accuracy targets rather than on package similarity alone.
Can the AD8610ARM-R2 replace the AD8617ARMZ on a 3.3 V single-supply board?
No. The AD8610ARM-R2 is specified for ±5 V to ±13 V dual supplies and is not specified for 3.3 V single-supply operation. Using it on a 3.3 V rail would operate the device outside its verified supply range. The AD8617ARMZ, by contrast, is specified for 1.8 V to 5 V single-supply operation.
What ordering and packaging differences should be noted?
The AD8617ARMZ is supplied in an 8-lead MSOP tube/standard packaging configuration, while the AD8610ARM-R2 suffix indicates an 8-lead MSOP tape-and-reel packaging option. The "-R2" suffix on the AD8610ARM-R2 refers to reel packaging and does not change the electrical specifications of the device. Buyers should confirm the exact orderable part number and packaging quantity with the manufacturer or an authorized distributor before ordering.