Part A
AD8051ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6365 PCS
- Package
- SOIC-8
- Series
- Linear - Amplificadores - Instrumentação, OP Amps, Buffer Amps
Replacement verdict
Compatible functional replacement candidate
The AD8051ARZ and AD8052AR-REEL share the same voltage-feedback amplifier core, supply range, and SOIC-8 footprint, making the AD8052AR-REEL a viable functional substitute for the AD8051ARZ in dual-channel applications where the additional amplifier is acceptable. Designers should confirm channel count requirements and verify the slightly different quiescent current and bandwidth specifications against the target circuit before committing to the substitution.
Amplifier Core Topology
High match
Package Type
High match
Channel Count
Validation required
Supply Current
Validation required
Parts at a glance
Part B
AD8052AR-REEL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2411 PCS
- Series
- Linear - Amplifiers - Instrumentation, 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 | AD8051ARZ | AD8052AR-REEL | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 1 | 2 | Determines how many independent signal channels can be processed in one package; a dual amplifier can replace two singles but not vice versa. |
| -3 dB Bandwidth | 110 MHz | 110 MHz | Sets the maximum signal frequency the amplifier can handle with acceptable gain roll-off; matching bandwidth supports similar high-speed signal fidelity. |
| Slew Rate | 170 V/µs | 170 V/µs | Governs how fast the output can respond to large signal steps; identical slew rate means comparable large-signal transient performance. |
| Supply Voltage Range | 3 V to 12 V | 3 V to 12 V | Defines the operating supply window; matching ranges allow the parts to be used in the same power rail configurations. |
| Input Offset Voltage (max) | 5 mV | 5 mV | Affects DC accuracy; equal offset specifications mean similar error contribution in precision signal chains. |
| Input Bias Current | 1.4 µA | 1.4 µA | Influences error in high-impedance circuits; identical bias current yields comparable loading effects on sensitive nodes. |
| Quiescent Supply Current per Amplifier | 4.8 mA | 4.8 mA | Determines power consumption; matching per-amplifier current keeps thermal and power budget behavior consistent. |
| Package / Pin Count | 8-Lead SOIC | 8-Lead SOIC | Pin count and footprint affect board layout and drop-in compatibility; both share the same 8-lead SOIC footprint but differ in channel count. |
| Output Current | 45 mA | 45 mA | Indicates drive capability for loads; equal output current supports similar load-driving performance per channel. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8051ARZ | AD8052AR-REEL |
|---|---|---|
| Part Status | Active | Obsolete |
| Amplifier Type | Voltage Feedback | Voltage Feedback |
| Number of Circuits | 1 | 2 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 170V/µs | 170V/µs |
| -3 dB Bandwidth | 110 MHz | 110 MHz |
| Current - Input Bias | 1.4 µA | 1.4 µA |
| Voltage - Input Offset | 1.8 mV | 1.7 mV |
| Supply Current | 4.8mA | 4.8mA (x2 Channels) |
| Current - Output / Channel | 45 mA | 45 mA |
| Voltage - Supply Span (Min) | - | 3 V |
| Voltage - Supply Span (Max) | - | 12 V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Base Product Number | - | AD8052 |
| Voltage - Supply Span(Min) | 3 V | - |
| Voltage - Supply Span(Max) | 12 V | - |
Frequently asked questions
What are the key differences between the AD8051ARZ and AD8052AR-REEL?
The AD8051ARZ is a single, voltage-feedback operational amplifier supplied in an 8-lead SOIC package (RoHS-compliant, tube/tray packaging). The AD8052AR-REEL is a dual, voltage-feedback operational amplifier in an 8-lead SOIC package supplied on tape-and-reel for automated assembly. The primary differences are channel count (1 vs 2) and packaging format (tube vs reel); both share the same AD805x family process and similar AC performance characteristics.
Are the AD8051ARZ and AD8052AR-REEL pin-compatible?
No. Although both use an 8-lead SOIC package, the AD8051 (single) and AD8052 (dual) have different pinouts. The single AD8051 uses the standard single-op-amp SOIC pinout (offset null/NC, -IN, +IN, V-, NC, VOUT, V+, NC), while the dual AD8052 uses the standard dual-op-amp pinout (OUT A, -IN A, +IN A, V-, +IN B, -IN B, OUT B, V+). They are not drop-in replacements for each other.
What is the supply voltage range for these amplifiers?
Both the AD8051 and AD8052 are specified for operation on a single supply of +3 V to +12 V, or a dual supply of ±1.5 V to ±6 V. They are rail-to-rail output devices and are characterized for both +5 V single-supply and ±5 V dual-supply operation per the Analog Devices datasheet.
What bandwidth and slew rate do the AD8051ARZ and AD8052AR-REEL offer?
Per the Analog Devices AD8051/AD8052/AD8054 datasheet, both devices provide a -3 dB bandwidth of approximately 110 MHz (G = +1) and a slew rate of approximately 145 V/µs. These are voltage-feedback amplifiers intended for high-speed signal processing, video, and ADC driving applications.
Can the AD8052AR-REEL be used to replace two AD8051ARZ devices in a design?
Functionally, a dual AD8052 provides two independent amplifiers comparable in performance to the single AD8051, so it can often replace two singles. However, this requires a PCB redesign because the pinouts differ, and the designer must verify supply decoupling, crosstalk between channels, and thermal/power dissipation against the AD8052 datasheet. It is not a pin-for-pin substitution.
Why is the AD8052AR-REEL supplied in tape-and-reel while the AD8051ARZ is not?
The "-REEL" suffix indicates the AD8052AR-REEL is packaged on tape-and-reel for high-volume automated pick-and-place assembly. The AD8051ARZ suffix denotes the RoHS-compliant SOIC package without a reel designation, typically supplied in tubes or trays. The packaging format is a logistics/assembly consideration, not an electrical or functional difference.
Are both parts RoHS-compliant?
Yes. The "Z" suffix in AD8051ARZ denotes a RoHS-compliant, lead-free (Pb-free) package per Analog Devices' part numbering convention. The AD8052AR-REEL is likewise offered as a RoHS-compliant SOIC package. Designers should confirm the specific ordering code and compliance documentation with the manufacturer or authorized distributor before finalizing a bill of materials.