Part A
AD711JNZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2634 PCS
- Package
- DIP-8
- Series
- Linear - Amplificadores - Instrumentação, OP Amps, Buffer Amps
Replacement verdict
Not a drop-in replacement
The AD711JNZ and AD7111ABNZ are not functionally interchangeable despite sharing a similar part number prefix. The AD711JNZ is a precision operational amplifier, while the AD7111ABNZ is a multiplying digital-to-analog converter; they differ in core function, package, and pinout, so substitution requires a full redesign rather than a direct swap.
Different device function
Different package type
Different pin configuration
Different supply requirements
Parts at a glance
Part B
AD7111ABNZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4026 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 | AD711JNZ | AD7111ABNZ | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Same manufacturer ensures consistent quality and documentation, but the two parts belong to different product families. |
| Function / Device Type | Operational Amplifier (Op-Amp) | Multiplying Digital-to-Analog Converter (DAC) | These are fundamentally different device types, so they are not functionally substitutable in a circuit. |
| Package / Mounting Type | 8-Pin PDIP (Through-Hole) | 16-Pin PDIP (Through-Hole) | Different pin counts and footprints mean they cannot be interchanged on the same PCB layout. |
| Number of Pins | 8 | 16 | Pin count determines socket and footprint compatibility; mismatched counts prevent direct substitution. |
| Supply Voltage Range | ±4.5 V to ±18 V (dual supply) | +5 V to +15 V (single supply, VDD) with VSS down to -15 V | Operating voltage compatibility is essential; the op-amp uses bipolar supplies while the DAC uses a single positive supply with optional negative reference. |
| Signal Interface | Analog input/output (voltage feedback op-amp) | Parallel digital input (8-bit) with analog current output | The interface type dictates how each device connects to surrounding circuitry; analog vs. digital interfaces are not interchangeable. |
| Resolution / Precision | Not applicable (continuous analog amplifier) | 8-bit DAC resolution | Resolution is a defining characteristic for DACs but not applicable to op-amps, highlighting the different functional roles. |
| Operating Temperature Range | 0 °C to +70 °C (commercial grade) | -40 °C to +85 °C (industrial grade) | Temperature range affects suitability for harsh environments; the DAC supports a wider industrial range than the commercial-grade op-amp. |
| Typical Application | Precision analog signal conditioning, active filters, buffers | Digital-to-analog conversion, multiplying DAC applications, programmable gain | Application fit determines whether a part can serve the intended circuit role; these parts serve entirely different functions. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD711JNZ | AD7111ABNZ |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Series | - | LOGDAC® |
| Part Status | Active | 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 | -40°C ~ 85°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 AD711JNZ and AD7111ABNZ interchangeable in a circuit design?
No. The AD711JNZ is a precision low-noise operational amplifier, while the AD7111ABNZ is a multiplying digital-to-analog converter (DAC). They are functionally different devices and cannot be substituted for one another.
What are the core functional differences between the AD711JNZ and AD7111ABNZ?
The AD711JNZ is a single op amp offering high open-loop gain, low offset voltage, and low noise for analog signal conditioning. The AD7111ABNZ is an 8-bit multiplying DAC that converts digital input codes into an analog output current or voltage, typically used in programmable gain and attenuation circuits.
What package type do the AD711JNZ and AD7111ABNZ use?
Both devices are supplied in a 16-lead plastic dual in-line package (PDIP), commonly designated as the N package by Analog Devices. However, the pin functions differ because the internal circuits are entirely different.
Can the AD711JNZ be used as the output amplifier for the AD7111ABNZ?
Yes. The AD711JNZ is a suitable op amp for interfacing with the current output of the AD7111ABNZ multiplying DAC, converting the DAC current into a buffered voltage. This is a common configuration in multiplying DAC applications.
What are the key specifications of the AD711JNZ?
The AD711JNZ is a precision BiFET op amp with low offset voltage (typically 0.5 mV), low input bias current, low noise, and a unity-gain bandwidth of approximately 4 MHz. It operates over a specified temperature range and is intended for high-accuracy analog signal processing.
What are the key specifications of the AD7111ABNZ?
The AD7111ABNZ is an 8-bit multiplying DAC with a current output, a settling time suitable for audio and control applications, and a specified linearity grade (A grade). It requires an external op amp to convert the current output to a voltage and operates from dual supplies.
Do the AD711JNZ and AD7111ABNZ share the same supply voltage requirements?
Both devices are designed for dual-supply operation, typically ±15 V, but the allowable supply range and current consumption differ. Designers must verify the supply limits and decoupling requirements in the respective manufacturer datasheets before use.
Which device should be selected for a digitally controlled attenuation application?
The AD7111ABNZ is the appropriate choice because it is a multiplying DAC specifically intended for digital control of analog signal amplitude. The AD711JNZ alone cannot perform digital-to-analog conversion and would only serve as a supporting buffer amplifier.