Part A
AD711JN
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 5279 個数
- Package
- DIP-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 AD711JN and AD7111KNZ are not functionally interchangeable. The AD711JN is a precision low-noise operational amplifier in a PDIP-8 package, while the AD7111KNZ is a multiplying digital-to-analog converter in a PDIP-16 package. They differ in device function, pin count, and package footprint, so the AD7111KNZ cannot serve as a substitute for the AD711JN in any design.
Different device function
Different pin count
Different package footprint
Different signal interface
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD711JN | AD7111KNZ | Why it matters |
|---|---|---|---|
| Amplifier Type | Operational Amplifier (Op-Amp), JFET input | Multiplying Digital-to-Analog Converter (DAC) | These are fundamentally different device classes; one is an analog signal amplifier and the other is a digital-to-analog converter, so they are not functionally substitutable. |
| Package / Mounting | 8-lead PDIP (through-hole) | 16-lead PDIP (through-hole) | Different pin counts and footprints mean the parts cannot be interchanged on the same PCB without redesign. |
| Number of Pins | 8 | 16 | Pin count determines socket and layout compatibility; mismatched pin counts prevent direct substitution. |
| Primary Function | Voltage signal amplification / buffering | Digital-to-analog conversion with multiplication | The core function differs, so each part serves a different role in a circuit and cannot replace the other. |
| Input Signal Domain | Analog input (voltage) | Digital input (binary code) with analog reference | One device processes analog signals while the other converts digital codes to analog output, defining incompatible signal interfaces. |
| Supply Voltage Range | ±4.5 V to ±18 V (dual supply) | ±5 V to ±15 V (dual supply) | Operating supply ranges must be compatible with the system rails; differing ranges affect usability in a given design. |
| Manufacturer | Analog Devices | Analog Devices | Same manufacturer simplifies documentation and support, but does not imply interchangeability given the different functions. |
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Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD711JN | AD7111KNZ |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Series | - | LOGDAC® |
| Part Status | Obsolete | Obsolete |
| Number of Bits | - | 17 |
| Number of D/A Converters | - | 1 |
| Output Type | - | Current - Unbuffered |
| Differential Output | - | No |
| Data Interface | - | Parallel |
| Voltage - Supply, Analog | - | 5V |
| Voltage - Supply, Digital | - | 5V |
| Architecture | - | R-2R |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C |
| Amplifier Type | J-FET | - |
| Number of Circuits | 1 | - |
| Slew Rate | 20V/µs | - |
| -3 dB Bandwidth | 4 MHz | - |
| Current - Input Bias | 15 pA | - |
| Voltage - Input Offset | 300 µV | - |
| Supply Current | 2.5mA | - |
| Current - Output / Channel | 25 mA | - |
| Voltage - Supply Span(Min) | 9 V | - |
| Voltage - Supply Span(Max) | 36 V | - |
| Mounting Type | Through Hole | - |
Frequently asked questions
Are the AD711JN and AD7111KNZ the same type of component?
No. The AD711JN is a precision low-drift operational amplifier, while the AD7111KNZ is a multiplying digital-to-analog converter (DAC). They are functionally different devices and are not interchangeable.
What are the key differences in function between the AD711JN and AD7111KNZ?
The AD711JN is a monolithic BiFET op amp intended for precision analog signal conditioning with low offset voltage and low drift. The AD7111KNZ is a CMOS multiplying DAC designed to convert digital input codes into an analog output current or voltage, often used in programmable gain and attenuation applications.
Do the AD711JN and AD7111KNZ use the same package type?
Both devices are offered in plastic DIP packages, but the AD711JN is an 8-pin PDIP op amp and the AD7111KNZ is a 16-pin PDIP DAC. The pin counts and pin functions differ, so PCB footprints are not compatible.
Can the AD711JN be used as a direct replacement for the AD7111KNZ?
No. Because one is an operational amplifier and the other is a multiplying DAC, they serve different circuit functions and have different pinouts and supply requirements. Direct substitution is not possible.
What supply voltages do the AD711JN and AD7111KNZ require?
The AD711JN operates from dual supplies typically in the ±4.5 V to ±18 V range. The AD7111KNZ operates from a single +5 V supply (with specific logic and reference considerations per the datasheet). Designers must verify exact limits against the respective manufacturer datasheets.
Are the AD711JN and AD7111KNZ suitable for the same applications?
No. The AD711JN is suited to precision analog amplification, active filters, and integrators. The AD7111KNZ is suited to digital gain control, programmable attenuation, and multiplying DAC applications. Application requirements should be matched to each device's specified function.
What should be verified before designing with either the AD711JN or AD7111KNZ?
Verify package pinout, supply voltage range, input/output voltage or current ranges, reference requirements, and temperature specifications from the official manufacturer datasheet. Because these are different device classes, confirm that the selected part matches the intended circuit function.