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 AD7111ABN are not functionally interchangeable. The AD711JN is a precision BiFET operational amplifier, while the AD7111ABN is a multiplying digital-to-analog converter; they differ in core function, package pinout, and electrical characteristics, so substitution requires a full circuit redesign rather than a direct swap.
Different device function
Different package pinout
Different supply requirements
Different signal interface
Parts at a glance
Part B
AD7111ABN
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6940 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 | AD7111ABN | Why it matters |
|---|---|---|---|
| Function / Type | Precision operational amplifier (op amp) | 8-bit multiplying digital-to-analog converter (DAC) | These are fundamentally different device classes; one is an analog amplifier and the other is a digital-to-analog converter, so they are not functionally interchangeable. |
| Package | 8-lead PDIP (N) | 16-lead PDIP (N) | 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; the op amp supports bipolar supplies while the DAC uses a single positive supply. |
| Signal interface | Analog input/output (voltage feedback op amp) | Digital parallel input (8-bit bus) with analog current output | The interface type dictates how each device connects to surrounding circuitry; one processes analog signals, the other converts digital codes to analog. |
| Key performance metric | High slew rate and low input offset (precision op amp) | 8-bit resolution with multiplying reference input | The primary performance specification reflects the different roles: amplification accuracy/speed versus conversion resolution. |
| Output type | Voltage output | Current output (requires external op amp for voltage) | Output configuration affects the external circuitry needed to obtain a usable voltage signal. |
| Typical application | Signal conditioning, active filters, buffering | Digital gain control, programmable attenuation, waveform generation | Application fit confirms the devices serve different circuit functions and cannot substitute for one another. |
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 | AD711JN | AD7111ABN |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| 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 | -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 AD711JN and AD7111ABN functionally interchangeable?
No. The AD711JN is a precision low-drift BiFET operational amplifier, while the AD7111ABN is a CMOS multiplying digital-to-analog converter (DAC). They are different device classes and cannot be substituted for one another.
What are the key differences in function between the AD711JN and AD7111ABN?
The AD711JN is a single op amp offering low offset voltage, low drift, and high open-loop gain for precision analog signal conditioning. The AD7111ABN is an 8-bit multiplying DAC with a current output, intended for digital-to-analog conversion and multiplying applications.
Do the AD711JN and AD7111ABN share the same package and pinout?
Both devices 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-to-pin compatibility is therefore not applicable between these two parts.
What supply voltages do the AD711JN and AD7111ABN require?
The AD711JN operates from dual supplies typically in the ±4.5 V to ±18 V range. The AD7111ABN operates from a single +5 V supply (with specified limits per the manufacturer datasheet). Designs must account for these different supply requirements.
Which device is suitable for precision analog signal amplification?
The AD711JN is the appropriate choice for precision amplification, as it is a BiFET op amp with low offset voltage and low drift. The AD7111ABN is a DAC and is not intended for signal amplification.
Which device is suitable for digital-to-analog conversion or multiplying applications?
The AD7111ABN is the appropriate choice, as it is an 8-bit multiplying DAC with a current output. The AD711JN is an op amp and does not perform digital-to-analog conversion.
Can the AD711JN and AD7111ABN be used together in a single design?
Yes, they can serve complementary roles: the AD7111ABN can perform the DAC function, and the AD711JN can be used as an output buffer or I-to-V amplifier for the DAC current output, provided the circuit is designed per both datasheets.
What should be verified before selecting between the AD711JN and AD7111ABN?
Verify the required function (amplifier vs. DAC), supply voltage, package and pinout, output type, resolution, and operating temperature range against the official manufacturer datasheets before making a selection.