Part A
AD8062ARMZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4293 PCS
- Package
- MSOP-8
- Series
- Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
Replacement verdict
Compatible functional replacement candidate
The AD8062ARMZ and AD8066ARM are both dual high-speed voltage-feedback operational amplifiers from Analog Devices in the same 8-lead MSOP package, sharing identical pinout and comparable AC performance, making the AD8062ARMZ a viable functional replacement candidate for the AD8066ARM in many designs. However, the two devices differ in supply voltage range, quiescent current, and output drive capability, so engineers should validate these parameters against the target application before substituting.
Package Type
High match
Channel Count
High match
Supply Voltage Range
Validation required
Quiescent Current
Validation required
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8062ARMZ | AD8066ARM | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 | 2 | Both are dual amplifiers, so channel count is compatible for substitution. |
| Gain Bandwidth Product | 300 MHz | 145 MHz | Higher bandwidth affects achievable signal frequency and settling behavior in the application. |
| -3 dB Bandwidth (G = 1) | 320 MHz | 145 MHz | Determines the usable small-signal frequency range in unity-gain configurations. |
| Slew Rate | 650 V/µs | 180 V/µs | Slew rate limits large-signal response and distortion at high frequencies. |
| Input Voltage Noise Density | 8.5 nV/√Hz | 7 nV/√Hz | Noise density impacts the signal-to-noise ratio in low-level signal applications. |
| Input Offset Voltage (Max) | 6 mV | 1.5 mV | Offset voltage affects DC accuracy and error budget in precision circuits. |
| Supply Voltage Range | 2.7 V to 8 V | 5 V to 24 V | Operating supply range must match the system rail voltages for proper operation. |
| Quiescent Supply Current per Amplifier | 6.8 mA | 6.4 mA | Quiescent current affects power consumption and thermal budget of the design. |
| Output Current | 50 mA | 30 mA | Output drive capability determines ability to drive low-impedance loads or cables. |
| Package | 8-Lead MSOP | 8-Lead MSOP | Package compatibility ensures the part can be placed on the same PCB footprint. |
Need help validating a replacement?
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8062ARMZ | AD8066ARM |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Series | - | FastFET™ |
| Part Status | Active | Obsolete |
| Amplifier Type | Voltage Feedback | Voltage Feedback |
| Number of Circuits | 2 | 2 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 650V/µs | 180V/µs |
| -3 dB Bandwidth | 320 MHz | 120 MHz |
| Current - Input Bias | 3.5 µA | 3 pA |
| Voltage - Input Offset | 1 mV | 400 µV |
| Supply Current | 6.8mA (x2 Channels) | 6.6mA (x2 Channels) |
| Current - Output / Channel | 50 mA | 30 mA |
| Voltage - Supply Span(Min) | 2.7 V | 5 V |
| Voltage - Supply Span(Max) | 8 V | 24 V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the key differences between the AD8062ARMZ and the AD8066ARM?
The AD8062ARMZ is a dual, low-cost, high-speed voltage feedback amplifier specified for operation on a single 5 V supply (2.7 V to 8 V), while the AD8066ARM is a dual, high-performance, FET-input voltage feedback amplifier specified over a wider supply range of ±5 V to ±12 V (10 V to 24 V). The AD8062ARMZ is optimized for low power and low cost in single-supply applications, whereas the AD8066ARM offers lower input bias current, lower noise, and higher output drive capability for dual-supply signal-chain designs.
Are the AD8062ARMZ and AD8066ARM pin-compatible?
Both devices are offered in an 8-lead MSOP (RM) package with the same standard dual op-amp pinout: pin 1 and pin 7 are the outputs, pins 2 and 6 are the inverting inputs, pins 3 and 5 are the non-inverting inputs, and pins 4 and 8 are the negative and positive supply pins respectively. This common pinout allows the two parts to be placed on the same PCB footprint, but electrical differences must still be validated before substitution.
Can the AD8062ARMZ be used as a drop-in replacement for the AD8066ARM?
Not unconditionally. Although both are dual op-amps in the same 8-lead MSOP package with identical pin functions, the AD8062ARMZ is specified for single-supply operation (2.7 V to 8 V) and the AD8066ARM for dual supplies up to ±12 V. Supply voltage, input common-mode range, output swing, noise, and bias current differ between the two, so a replacement must be verified against the target circuit's requirements using the respective manufacturer datasheets.
How do the supply voltage ranges of the AD8062ARMZ and AD8066ARM compare?
The AD8062ARMZ operates from a single supply of 2.7 V to 8 V. The AD8066ARM operates from dual supplies of ±5 V to ±12 V (or equivalently 10 V to 24 V total). Designs powered from a single 5 V rail are suited to the AD8062ARMZ, while applications requiring higher supply headroom or bipolar rails are suited to the AD8066ARM.
How do the input characteristics of the AD8062ARMZ and AD8066ARM differ?
The AD8066ARM uses a FET input stage, giving very low input bias current and low input current noise, which suits high-impedance sensor and photodiode interfaces. The AD8062ARMZ uses a bipolar input stage with higher input bias current but is optimized for low cost and low power in single-supply signal chains. The exact bias current, offset voltage, and noise figures should be taken from the respective Analog Devices datasheets for the specific grade.
Which device is better suited for low-power, single-supply designs?
The AD8062ARMZ is the intended choice for low-power, single-supply designs because it is specified for operation from 2.7 V to 8 V and is positioned as a low-cost, high-speed amplifier for single-supply systems. The AD8066ARM is specified for dual supplies and higher performance, so it is generally not the preferred option where only a single low-voltage rail is available.
Do both parts come in the same package and temperature grade?
Both the AD8062ARMZ and AD8066ARM are offered in the 8-lead MSOP package, denoted by the "RM" suffix in the ordering code. The "Z" suffix on AD8062ARMZ indicates RoHS-compliant lead-free construction per Analog Devices ordering conventions. Designers should confirm the exact temperature grade and RoHS status from the Analog Devices product page or an authorized distributor before finalizing a bill of materials.