Part A
AD8130AR
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 9295 PCS
- Series
- Linear - Amplifiers - Instrumentation, Op Amps, Buffer Amps
Replacement verdict
Not a drop-in replacement
The AD8132ARZ and AD8130AR are not drop-in replacements for one another. The AD8132ARZ is a current-feedback differential amplifier with an internal feedback network optimized for high-speed differential signal processing, while the AD8130AR is a voltage-feedback differential receiver amplifier with a fixed gain of 1 and a much higher input impedance. Their feedback architectures, gain configurations, and input characteristics differ fundamentally, so substituting one for the other requires circuit redesign and validation.
Different amplifier architecture
Different gain configuration
Different input impedance
Different bandwidth characteristics
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8132ARZ | AD8130AR | Why it matters |
|---|---|---|---|
| Amplifier Type | Differential Amplifier | Differential Receiver / Amplifier | Defines the core function; a differential amplifier drives signals while a differential receiver is optimized to receive and amplify differential signals, affecting circuit topology compatibility. |
| -3 dB Bandwidth | 350 MHz | 270 MHz | Bandwidth determines the maximum signal frequency the device can handle with acceptable gain, directly impacting high-speed signal fidelity. |
| Slew Rate | 1200 V/µs | 1090 V/µs | Slew rate limits how fast the output can respond to large signal changes; higher slew rate supports faster large-signal transitions. |
| Input Voltage Noise | 8 nV/√Hz | 13 nV/√Hz | Lower input voltage noise improves signal-to-noise ratio in sensitive applications, especially with low-amplitude signals. |
| Supply Voltage Range | ±1.5 V to ±5.5 V (3 V to 11 V) | ±4.5 V to ±12.6 V (9 V to 25.2 V) | Supply range must match the system power rails; the AD8130AR requires higher minimum supply, limiting low-voltage operation. |
| Supply Current per Amplifier | 10.5 mA | 11 mA | Quiescent current affects power consumption and thermal budget in the target design. |
| Input Common-Mode Voltage Range | -VS to +VS (rail-to-rail) | -VS to +VS (rail-to-rail) | Wide common-mode range allows the amplifier to accept signals near the supply rails without clipping. |
| Output Voltage Swing | Rail-to-rail output | Rail-to-rail output | Rail-to-rail output maximizes dynamic range and headroom for signals near the supply rails. |
| Package | 8-Lead SOIC | 8-Lead SOIC | Package compatibility affects PCB footprint and assembly; identical packages simplify board-level substitution. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Temperature range must cover the application environment to ensure reliable operation. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8130AR | AD8132ARZ |
|---|---|---|
| Part Status | Obsolete | Active |
| Base Product Number | AD8130 | - |
| Amplifier Type | Differential | Differential |
| Number of Circuits | 1 | 1 |
| Slew Rate | 1100V/µs | 1200V/µs |
| Current - Input Bias | 500 nA | 3 µA |
| Voltage - Input Offset | 400 µV | 1 mV |
| Supply Current | 13mA | 12mA |
| Voltage - Supply Span (Min) | 4.5 V | - |
| Voltage - Supply Span (Max) | 25.2 V | - |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Packaging | Tube | - |
| -3 dB Bandwidth | 290 MHz | 360 MHz |
| Current - Output / Channel | 40 mA | 70 mA |
| Output Type | - | Differential |
| Voltage - Supply Span(Min) | - | 2.7 V |
| Voltage - Supply Span(Max) | - | 11 V |
Frequently asked questions
What are the primary functional differences between the AD8132ARZ and the AD8130AR?
The AD8132ARZ is a high-speed, low-cost differential amplifier designed for driving differential signals and analog-to-digital converters, while the AD8130AR is a high-speed, low-cost differential receiver amplifier designed for receiving differential signals and converting them to single-ended outputs. They serve complementary roles in signal chains rather than being interchangeable.
Are the AD8132ARZ and AD8130AR pin-compatible and directly substitutable?
No. Although both are offered in 8-lead SOIC packages, they have different internal architectures and pin functions. The AD8132ARZ is a differential driver with differential outputs, while the AD8130AR is a differential receiver with a single-ended output. They cannot be substituted directly without redesigning the surrounding circuit.
What are the key bandwidth specifications for each device?
The AD8132ARZ offers a -3 dB bandwidth of approximately 350 MHz, while the AD8130AR provides a -3 dB bandwidth of approximately 270 MHz. These figures are based on manufacturer datasheet specifications and should be verified against the latest revision for the specific grade and test conditions.
How do the supply voltage requirements compare between the AD8132ARZ and AD8130AR?
Both devices operate from dual supplies typically ranging from ±2.5 V to ±5 V, or single supplies from 5 V to 10 V. Designers should confirm the exact supply range and headroom requirements in the respective manufacturer datasheets before finalizing the power supply design.
Which device is better suited for driving an ADC, and which for receiving a differential signal?
The AD8132ARZ is intended for driving differential inputs of ADCs, thanks to its differential outputs and adjustable output common-mode voltage. The AD8130AR is intended for receiving differential signals and converting them to a single-ended output, making it suitable for differential signal reception and measurement applications.
Do the AD8132ARZ and AD8130AR share the same package and operating temperature range?
Both are available in 8-lead SOIC packages and are specified for the industrial temperature range of -40°C to +85°C. However, designers should verify the exact package suffix and temperature grade against the manufacturer datasheet for the specific ordering part number.
Can the AD8132ARZ and AD8130AR be used together in the same signal chain?
Yes. A common architecture uses the AD8132ARZ as a differential driver at the transmit or ADC-drive side and the AD8130AR as a differential receiver at the receive or measurement side. This complementary pairing is consistent with their respective datasheet-described roles.