Part A
AD8000YRDZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 6251 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 AD8000YRDZ and AD8001AR are both high-speed current-feedback operational amplifiers from Analog Devices sharing a similar functional architecture, making the AD8001AR a viable functional replacement candidate for the AD8000YRDZ in many signal-conditioning applications. However, the two devices differ in package footprint, supply voltage range, and bandwidth, so designers must validate board layout, power rails, and AC performance before committing to a substitution.
Amplifier Architecture
High match
Package Type
Validation required
Supply Voltage Range
Validation required
Bandwidth
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 | AD8000YRDZ | AD8001AR | Why it matters |
|---|---|---|---|
| -3 dB Bandwidth | 1.5 GHz | 800 MHz | Determines the maximum signal frequency the amplifier can handle with acceptable gain; the AD8000 offers roughly double the bandwidth for high-speed signal chains. |
| Slew Rate | 4100 V/µs | 1200 V/µs | Higher slew rate enables faster large-signal transitions and lower distortion at high frequencies; critical for pulse and video applications. |
| Supply Voltage Range | 4.5 V to 12 V (±2.25 V to ±6 V) | ±3 V to ±6 V (dual supply) | Defines the allowable power supply; the AD8000 supports single-supply operation down to 4.5 V, while the AD8001 is specified for dual supplies. |
| Quiescent Supply Current | 14 mA (typ) | 5.5 mA (typ) | Affects power budget and thermal design; the AD8001 consumes significantly less current, favoring power-sensitive designs. |
| Input Voltage Noise | 1.6 nV/√Hz | 2.0 nV/√Hz | Lower input noise improves signal-to-noise ratio in low-level signal amplification; the AD8000 provides slightly better noise performance. |
| Package | 8-Lead SOIC (RD-8) | 8-Lead SOIC (R-8) | Package footprint and thermal characteristics affect PCB layout and drop-in compatibility; both are 8-lead SOIC but differ in thermal and pin details. |
| Output Current | 100 mA (typ) | 70 mA (typ) | Higher output drive capability supports driving heavier loads such as cables and back-terminated transmission lines. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +85 °C | Wider temperature range enables use in harsher environments; the AD8000 is rated for higher ambient temperatures. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8000YRDZ | AD8001AR |
|---|---|---|
| Part Status | Active | Obsolete |
| Amplifier Type | Current Feedback | Current Feedback |
| Number of Circuits | 1 | 1 |
| Slew Rate | 4100V/µs | 1200V/µs |
| Current - Input Bias | 5 µA | 5 µA |
| Voltage - Input Offset | 1 mV | 2 mV |
| Supply Current | 13.5mA | 5mA |
| Current - Output / Channel | 100 mA | 70 mA |
| Voltage - Supply Span (Min) | - | 6 V |
| Voltage - Supply Span (Max) | - | 12 V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Base Product Number | - | AD8001 |
| -3 dB Bandwidth | 1.58 GHz | 715 MHz |
| Voltage - Supply Span(Min) | 4.5 V | - |
| Voltage - Supply Span(Max) | 12 V | - |
Frequently asked questions
What are the primary differences between the AD8000YRDZ and the AD8001AR?
The AD8000YRDZ is a high-speed current feedback amplifier with a 1.5 GHz -3 dB bandwidth and 4100 V/µs slew rate, supplied in an 8-lead SOIC package with exposed pad (RDZ suffix). The AD8001AR is a lower-power current feedback amplifier with an 800 MHz -3 dB bandwidth and 1200 V/µs slew rate, supplied in a standard 8-lead SOIC package (AR suffix). The AD8000YRDZ targets higher bandwidth and slew-rate applications, while the AD8001AR targets lower power consumption with moderate bandwidth.
Are the AD8000YRDZ and AD8001AR pin-compatible?
Both devices are offered in 8-lead SOIC packages with the same pinout (IN+, IN-, V-, V+, OUT, and feedback pins), but the AD8000YRDZ includes an exposed thermal pad (RDZ suffix) that must be soldered to the PCB for proper thermal performance. The AD8001AR does not have this exposed pad. PCB land patterns must account for this difference; the AD8000YRDZ cannot be dropped into a layout designed only for the AD8001AR without adding the thermal pad footprint.
Can the AD8001AR be used as a direct replacement for the AD8000YRDZ?
No, not as a direct drop-in replacement. Although the pinout is similar, the AD8000YRDZ requires an exposed thermal pad connection, and the two devices differ in bandwidth (1.5 GHz vs 800 MHz), slew rate (4100 V/µs vs 1200 V/µs), and supply current. Substitution requires validation of AC performance, thermal design, and stability in the target circuit against the respective datasheets.
How do the supply current and power consumption of the AD8000YRDZ and AD8001AR compare?
The AD8000YRDZ typically draws approximately 14 mA per amplifier from a ±5 V supply, while the AD8001AR typically draws approximately 5.5 mA per amplifier. The AD8001AR is therefore the lower-power option, at the cost of reduced bandwidth and slew rate compared with the AD8000YRDZ.
What are the typical -3 dB bandwidth specifications for each device?
The AD8000YRDZ provides a -3 dB bandwidth of approximately 1.5 GHz (G = +1) and is characterized for high-speed signal processing. The AD8001AR provides a -3 dB bandwidth of approximately 800 MHz (G = +1). The AD8000YRDZ offers roughly double the small-signal bandwidth of the AD8001AR.
What slew rate does each amplifier achieve?
The AD8000YRDZ has a slew rate of approximately 4100 V/µs, while the AD8001AR has a slew rate of approximately 1200 V/µs. The higher slew rate of the AD8000YRDZ makes it better suited to large-signal, high-frequency applications such as video and pulse amplification.
What supply voltage ranges are supported by the AD8000YRDZ and AD8001AR?
Both devices operate from dual supplies of ±5 V nominal, with an operating supply voltage range of ±4 V to ±6 V (8 V to 12 V total). Designers should verify the exact limits in the respective manufacturer datasheets before finalizing the power supply design.
Which device is better suited for low-power portable designs?
The AD8001AR is better suited for low-power designs because it draws approximately 5.5 mA per amplifier versus approximately 14 mA for the AD8000YRDZ. However, the AD8001AR provides lower bandwidth and slew rate, so the choice depends on the required AC performance versus power budget.