Part A
AD8137YRZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 3869 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
Not a drop-in replacement
The AD8137YRZ and AD813AR-14 are not drop-in replacements for one another. The AD8137YRZ is a low-power, low-noise differential ADC driver in an 8-lead SOIC package, while the AD813AR-14 is a triple low-power video amplifier in a 14-lead SOIC package. They differ in channel count, package footprint, supply voltage range, and output drive characteristics, so substituting one for the other requires circuit redesign and validation.
Different channel count
Different footprint
Different supply range
Different output drive
Parts at a glance
Part B
AD813AR-14
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 9442 個数
- Package
- SOIC-14
- Series
- リニアアンプ - ビデオアンプおよびモジュール
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8137YRZ | AD813AR-14 | Why it matters |
|---|---|---|---|
| Amplifier Type | Differential Amplifier | Video Amplifier (Triple) | The core function differs: one is a differential signal amplifier, the other a triple video amplifier, so they are not direct functional substitutes. |
| Number of Channels | 1 | 3 | Channel count determines how many independent signal paths can be processed in one package. |
| Package / Mounting | 8-Lead SOIC (surface mount) | 14-Lead PDIP (through-hole) | Different package and mounting styles affect PCB footprint, assembly process, and mechanical compatibility. |
| -3 dB Bandwidth | ~100 MHz | ~100 MHz | Bandwidth sets the maximum signal frequency the amplifier can pass with acceptable gain, critical for video and high-speed signal chains. |
| Supply Voltage Range | 2.7 V to 12 V (single/dual) | ±5 V typical (dual supply) | Supply range determines compatibility with the system power rails and allowable signal swing. |
| Output Configuration | Differential output | Single-ended output | Differential versus single-ended output dictates how the part interfaces with ADCs, cables, and downstream stages. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +85 °C | The temperature range affects reliability and usability in industrial or automotive environments. |
| Typical Application | ADC driving, differential signal conditioning | RGB video signal amplification | Intended application indicates whether the part fits the target signal chain and performance requirements. |
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 | AD8137YRZ | AD813AR-14 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Applications | - | Current Feedback |
| Number of Circuits | 1 | 3 |
| -3 dB Bandwidth | 110 MHz | 100 MHz |
| Slew Rate | 450V/µs | 250V/µs |
| Supply Current | 3.2mA | 4.5 mA |
| Current - Output / Channel | 20 mA | 50 mA |
| Voltage - Supply, Single/Dual (±) | - | 2.4V ~ 36V, ±1.2V ~ 18V |
| Mounting Type | Surface Mount | Surface Mount |
| Amplifier Type | Differential | - |
| Output Type | Differential, Rail-to-Rail | - |
| Current - Input Bias | 500 nA | - |
| Voltage - Input Offset | 700 µV | - |
| Voltage - Supply Span(Min) | 2.7 V | - |
| Voltage - Supply Span(Max) | 12 V | - |
| Operating Temperature | -40°C ~ 125°C | - |
Frequently asked questions
Are the AD8137YRZ and AD813AR-14 functionally interchangeable?
No. The AD8137YRZ is a low-power, low-noise differential ADC driver with rail-to-rail output, while the AD813AR-14 is a quad general-purpose voltage-feedback operational amplifier. They differ in function, channel count, and package, so they are not direct substitutes.
How do the channel counts of the AD8137YRZ and AD813AR-14 differ?
The AD8137YRZ is a single-channel differential amplifier, whereas the AD813AR-14 contains four independent operational amplifiers in one package.
What package types do the AD8137YRZ and AD813AR-14 use?
The AD8137YRZ is supplied in an 8-lead SOIC package. The AD813AR-14 is supplied in a 14-lead SOIC package.
How do the supply voltage requirements of these two parts compare?
The AD8137YRZ operates from a single supply of 2.7 V to 12 V or a dual supply of ±1.35 V to ±6 V. The AD813AR-14 operates from a dual supply of ±5 V to ±15 V. Designs must verify the chosen supply rail against the respective datasheet limits.
Which part is better suited for driving an analog-to-digital converter?
The AD8137YRZ is specifically designed as a differential ADC driver with rail-to-rail output and low noise, making it the appropriate choice for ADC interface applications. The AD813AR-14 is a general-purpose quad op amp not specified as an ADC driver.
Do the AD8137YRZ and AD813AR-14 have the same pinout?
No. The AD8137YRZ uses an 8-lead SOIC pinout for a single differential amplifier, while the AD813AR-14 uses a 14-lead SOIC pinout for four op amps. Pin functions and PCB land patterns are not compatible.
Can the AD813AR-14 replace the AD8137YRZ in an existing ADC driver circuit?
No. The AD813AR-14 is a quad voltage-feedback op amp with a different package, pinout, channel count, and supply range, and it is not specified as a differential ADC driver. Substitution requires full validation against both datasheets and the target design.