Part A
AD8616ARMZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3647 Stückzahl
- Package
- MSOP-8
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Replacement verdict
Compatible functional replacement candidate
The AD8617ARMZ-R2 is a viable functional replacement candidate for the AD8616ARMZ in many low-voltage, low-power signal-conditioning applications, as both share the same dual op-amp configuration, MSOP-8 package, and CMOS rail-to-rail input/output architecture. However, the AD8617 offers lower bandwidth and a reduced slew rate, so designs requiring the higher speed of the AD8616 must be validated against dynamic performance requirements before substitution.
Amplifier Channel Count
High match
Package Type
High match
Input/Output Architecture
High match
Gain Bandwidth Product
Validation required
Parts at a glance
Part B
AD8617ARMZ-R2
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 9465 Stückzahl
- Package
- TSSOP-8
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8616ARMZ | AD8617ARMZ-R2 | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 (Dual) | 2 (Dual) | Channel count determines whether the device can serve multiple signal paths in one package; both are dual, so this is functionally equivalent. |
| Supply Voltage Range | 2.7 V to 5.5 V | 1.8 V to 5.0 V | The AD8617 supports lower supply voltages (down to 1.8 V), enabling operation in low-voltage systems where the AD8616 cannot be used. |
| Input Offset Voltage (Max) | 65 µV | 300 µV | Lower offset voltage improves DC precision; the AD8616 offers tighter offset, which matters for high-accuracy signal conditioning. |
| Input Bias Current (Typ) | 0.2 pA | 0.3 pA | Ultra-low bias current is critical for high-impedance sensor interfaces; both are excellent, with the AD8616 slightly lower. |
| Gain Bandwidth Product | 24 MHz | 1.9 MHz | GBW sets the achievable closed-loop bandwidth; the AD8616 is far faster, so it suits higher-frequency signals while the AD8617 suits low-power, low-bandwidth designs. |
| Slew Rate | 12 V/µs | 1.0 V/µs | Slew rate limits large-signal response speed; the AD8616 handles faster transients, whereas the AD8617 is optimized for low-power operation. |
| Supply Current per Amplifier (Typ) | 1.7 mA | 0.038 mA | Quiescent current drives power budget; the AD8617 draws far less, making it preferable for battery-powered or energy-sensitive applications. |
| Input Voltage Noise Density | 8 nV/√Hz | 22 nV/√Hz | Lower noise density improves SNR in precision signal chains; the AD8616 is quieter, benefiting low-level signal amplification. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Identical industrial temperature range means both are suitable for the same harsh-environment applications. |
| Package | 8-Lead MSOP | 8-Lead MSOP | Same package and pinout allow drop-in board compatibility, simplifying substitution between the two parts. |
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 | AD8616ARMZ | AD8617ARMZ-R2 |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Amplifier Type | CMOS | CMOS |
| Number of Circuits | 2 | 2 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 12V/µs | 0.1V/µs |
| Gain Bandwidth Product | 24 MHz | 400 kHz |
| Current - Input Bias | 0.2 pA | 0.2 pA |
| Voltage - Input Offset | 23 µV | 400 µV |
| Supply Current | 1.7mA (x2 Channels) | 38µA |
| Current - Output / Channel | 150 mA | 80 mA |
| Voltage - Supply Span(Min) | 2.7 V | 1.8 V |
| Voltage - Supply Span(Max) | 5 V | 5 V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Series | DigiTrim® | - |
Frequently asked questions
What are the key differences between the AD8616ARMZ and AD8617ARMZ-R2?
The AD8616ARMZ is a dual, precision, low-noise operational amplifier in an 8-lead MSOP (RM) package, supplied in tube format. The AD8617ARMZ-R2 is a single, precision, low-noise operational amplifier in an 8-lead MSOP package, supplied in tape-and-reel (R2) format. The primary differences are channel count (dual vs. single) and packaging/packing format.
Are the AD8616ARMZ and AD8617ARMZ-R2 pin-compatible?
No. The AD8616ARMZ is a dual op amp with both amplifiers' inputs and outputs assigned across the 8 MSOP pins, while the AD8617ARMZ-R2 is a single op amp with a different pin function assignment (including dedicated null/offset pins). They are not drop-in replacements for each other despite sharing the same 8-lead MSOP footprint.
What are the supply voltage and quiescent current specifications for these parts?
Both the AD8616 and AD8617 are specified for single-supply operation from 2.7 V to 5 V (and dual supplies of ±1.35 V to ±2.5 V). The AD8616 dual typically draws approximately 1.7 mA per amplifier quiescent current, while the AD8617 single typically draws approximately 1.7 mA total quiescent current, per Analog Devices datasheet specifications.
What are the input offset voltage and noise characteristics of the AD8616 and AD8617?
Both devices feature low input offset voltage (typically 65 µV maximum at 25°C for the AD8616/AD8617 family) and low input voltage noise density of approximately 8 nV/√Hz at 1 kHz, making them suitable for precision, low-noise signal conditioning applications.
What is the gain bandwidth and slew rate of these operational amplifiers?
The AD8616 and AD8617 both offer a gain bandwidth product of 20 MHz and a slew rate of 12 V/µs, supporting wideband precision signal processing in instrumentation and filter designs.
What operating temperature range is specified for the AD8616ARMZ and AD8617ARMZ-R2?
Both parts are specified over the industrial temperature range of −40°C to +125°C, per Analog Devices datasheet ratings for the AD8616 and AD8617 families.
Can the AD8617ARMZ-R2 be used where a dual amplifier like the AD8616ARMZ was designed in?
No. The AD8617ARMZ-R2 provides only one amplifier channel, whereas the AD8616ARMZ provides two. Substituting a single device for a dual requires a board redesign to accommodate the missing second channel and the different pinout; it is not a direct functional replacement.
What packaging and ordering formats distinguish the AD8616ARMZ from the AD8617ARMZ-R2?
The AD8616ARMZ is supplied in an 8-lead MSOP tube format (suffix RMZ). The AD8617ARMZ-R2 is supplied in an 8-lead MSOP tape-and-reel format (suffix RMZ-R2), which is suited to automated high-volume assembly. Both use the same MSOP body but differ in channel count and packing.