Part A
AD711JN
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5279 PCS
- Package
- DIP-8
- Series
- Linear - Amplificadores - Instrumentação, OP Amps, Buffer Amps
Replacement verdict
Not a drop-in replacement
The AD711JN and AD7111KN are not functionally interchangeable. The AD711JN is a precision low-noise operational amplifier, while the AD7111KN is a multiplying digital-to-analog converter; they differ in core function, package, and electrical characteristics, so substitution is not feasible without redesign.
Different device function
Different package type
Different pin configuration
Different supply requirements
Parts at a glance
Part B
AD7111KN
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 394 PCS
- Package
- DIP-16
- Series
- Acquisição de dados - Convertedores digitais para analógicos (DAC)
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 | AD7111KN | Why it matters |
|---|---|---|---|
| Function / Device Type | Precision operational amplifier (op amp) | 8-bit multiplying DAC (digital-to-analog converter) | These are fundamentally different device classes, so they are not functionally interchangeable in a circuit. |
| Package | 8-lead PDIP | 16-lead PDIP | Different pin counts and footprints prevent direct board-level substitution. |
| Number of Pins | 8 | 16 | Pin count determines socket and PCB compatibility. |
| Supply Voltage Range | ±4.5 V to ±18 V (dual supply) | +5 V to +15 V (single supply) | Supply requirements must match the system rails for the part to operate correctly. |
| Signal Interface | Analog input/output (continuous) | Parallel digital input (8-bit), analog current output | One processes analog signals while the other converts digital codes to analog, so their interfaces are incompatible. |
| Key Performance Metric | Low offset voltage, high slew rate op amp | 8-bit resolution multiplying DAC | The primary performance specification differs entirely because the devices serve different functions. |
| Operating Temperature Range | 0 °C to +70 °C (commercial grade) | 0 °C to +70 °C (commercial grade) | Both share the same commercial temperature range, so thermal environment is not a differentiator here. |
| Manufacturer | Analog Devices | Analog Devices | Same manufacturer, but the parts belong to different product families and are not substitutes. |
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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 | AD7111KN |
|---|---|---|
| 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 AD7111KN the same type of component?
No. The AD711JN is a precision low-drift operational amplifier, while the AD7111KN 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 AD7111KN?
The AD711JN is a monolithic BiFET op amp intended for precision analog signal conditioning, whereas the AD7111KN is a CMOS multiplying DAC designed for digital-to-analog conversion with a current output. Their roles in a circuit are fundamentally different.
Do the AD711JN and AD7111KN share the same package and pinout?
Both are offered in a 16-lead plastic DIP (N suffix), but their pin functions differ because one is an op amp and the other is a DAC. Pin assignments are not compatible, so they cannot be dropped into the same socket.
Can the AD711JN be used as a replacement for the AD7111KN in a DAC circuit?
No. The AD711JN is an operational amplifier and does not perform digital-to-analog conversion. It cannot replace the AD7111KN in a DAC application.
What supply voltage ranges do the AD711JN and AD7111KN require?
The AD711JN operates from dual supplies typically in the ±4.5 V to ±18 V range. The AD7111KN operates from a single +5 V supply (with specific VDD/VREF conditions per the datasheet). Designs must respect each device's specified supply requirements.
Are the AD711JN and AD7111KN specified for the same temperature range?
The J and K grade suffixes denote commercial temperature range devices (0°C to +70°C) for both parts. Industrial or extended-temperature versions are identified by different suffixes and should be selected if wider range operation is required.
Which device should be chosen for precision analog signal amplification versus digital control?
Choose the AD711JN for precision analog amplification and buffering due to its low offset and low drift op amp characteristics. Choose the AD7111KN when a digitally controlled multiplying DAC function is required. The selection depends on the signal-chain function, not on interchangeability.