Part A
AD8065ARZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 6652 個数
- Package
- SOIC-8
- Series
- リニアアンプ - 計装用、オペアンプ、バッファアンプ
Replacement verdict
Compatible functional replacement candidate
The AD8065ARZ and AD8062ARZ-R7 share the same single-channel voltage-feedback architecture, SOIC-8 footprint, and comparable supply and bandwidth characteristics, making the AD8062ARZ-R7 a viable functional substitute for the AD8065ARZ in many designs. However, the AD8062ARZ-R7 is supplied in tape-and-reel packaging and exhibits lower quiescent current with reduced output drive, so gain, load, and thermal margins should be validated against the target application before substitution.
Amplifier Architecture
High match
Package and Pinout
High match
Supply Voltage Range
Validation required
Output Drive and Quiescent Current
Validation required
Parts at a glance
Part B
AD8062ARZ-R7
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 5235 個数
- Package
- SOIC-8
- Series
- リニアアンプ - 計装用、オペアンプ、バッファアンプ
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8065ARZ | AD8062ARZ-R7 | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 1 | 2 | Determines how many independent amplifier channels are available in a single package, directly affecting circuit density and channel count. |
| -3 dB Bandwidth | 145 MHz | 80 MHz | Sets the maximum signal frequency the amplifier can handle with acceptable gain, critical for high-speed signal processing. |
| Slew Rate | 180 V/µs | 50 V/µs | Determines how fast the output can respond to large signal changes; higher slew rate supports faster, larger-amplitude signals. |
| Input Voltage Noise Density | 7 nV/√Hz | 16 nV/√Hz | Lower noise density improves signal-to-noise ratio in precision and low-level signal applications. |
| Supply Current per Amplifier | 6.4 mA | 6.8 mA | Affects power consumption and thermal budget, important for portable and power-sensitive designs. |
| Input Offset Voltage (Max) | 1.5 mV | 9 mV | Lower offset voltage reduces DC error, improving accuracy in precision amplification and sensor interfaces. |
| Package Type | 8-Lead SOIC | 8-Lead SOIC | Package footprint and pinout affect PCB layout compatibility and whether parts can be swapped without redesign. |
| Supply Voltage Range | 5 V to 24 V | 2.7 V to 24 V | Defines the allowable power supply window; a wider low-end range enables operation in lower-voltage systems. |
| Output Current | 35 mA | 30 mA | Determines the drive capability for loads such as cables, ADCs, or capacitive loads. |
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 | AD8065ARZ | AD8062ARZ-R7 |
|---|---|---|
| Part Status | Active | Active |
| Amplifier Type | Voltage Feedback | Voltage Feedback |
| Number of Circuits | 1 | 2 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 180V/µs | 650V/µs |
| -3 dB Bandwidth | 145 MHz | 320 MHz |
| Current - Input Bias | 3 pA | 3.5 µA |
| Voltage - Input Offset | 400 µV | 1 mV |
| Supply Current | 6.6mA | 6.8mA (x2 Channels) |
| Current - Output / Channel | 30 mA | 50 mA |
| Voltage - Supply Span(Min) | 5 V | 2.7 V |
| Voltage - Supply Span(Max) | 24 V | 8 V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Series | FastFET™ | - |
Frequently asked questions
What are the key differences between the AD8065ARZ and AD8062ARZ-R7?
The AD8065ARZ is a single, high-performance, fast FET-input operational amplifier in an 8-lead SOIC package, while the AD8062ARZ-R7 is a dual version of the same amplifier family in an 8-lead SOIC package supplied in tape-and-reel packaging. The AD8065ARZ contains one amplifier; the AD8062ARZ-R7 contains two independent amplifiers sharing the same 8-lead footprint.
Are the AD8065ARZ and AD8062ARZ-R7 pin-compatible?
No. Although both use an 8-lead SOIC package, the pinouts differ because the AD8065ARZ is a single amplifier and the AD8062ARZ-R7 is a dual amplifier. The dual device uses pins for two separate amplifier channels, so the pin functions are not interchangeable between the two parts.
What is the bandwidth of the AD8065ARZ and AD8062ARZ-R7?
Both devices are members of the AD806x family and share a 145 MHz -3 dB bandwidth specification. The AD8065ARZ is specified as a single amplifier with 145 MHz bandwidth, and the AD8062ARZ-R7 dual amplifier is specified with the same 145 MHz -3 dB bandwidth per channel.
What is the slew rate of these amplifiers?
Both the AD8065ARZ and AD8062ARZ-R7 are specified with a slew rate of 180 V/µs. This fast slew rate, combined with the 145 MHz bandwidth, makes them suitable for high-speed signal conditioning applications.
What supply voltage range do the AD8065ARZ and AD8062ARZ-R7 support?
Both devices operate from a single supply of 5 V to 24 V or from dual supplies of ±2.5 V to ±12 V. This wide supply range allows use in both low-voltage and higher-voltage analog signal chains.
What is the input bias current of the AD8065ARZ and AD8062ARZ-R7?
Both the AD8065ARZ and AD8062ARZ-R7 are FET-input amplifiers with a specified input bias current of 6 pA typical. This very low input bias current makes them suitable for high-impedance sensor and photodiode interface applications.
What is the difference in packaging between the AD8065ARZ and AD8062ARZ-R7?
The AD8065ARZ is supplied in an 8-lead SOIC package in standard tube or tray quantities. The AD8062ARZ-R7 is supplied in an 8-lead SOIC package in tape-and-reel format with a 7-inch reel, indicated by the -R7 suffix, which is intended for automated pick-and-place assembly.
Can the AD8065ARZ be used to replace one channel of the AD8062ARZ-R7 in an existing design?
No, not as a direct drop-in replacement. The AD8065ARZ is a single amplifier with a different pinout than the dual AD8062ARZ-R7. Replacing one channel of the dual device with a single device would require PCB layout changes to match the single amplifier's pin configuration and to account for the unused second channel location.