Part A
AD711JN
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5279 PCS
- Package
- DIP-8
- Series
- Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
Replacement verdict
Not a drop-in replacement
The AD711JN and AD7111ACNZ are fundamentally different devices and cannot serve as substitutes for one another. The AD711JN is a precision operational amplifier, while the AD7111ACNZ is a multiplying digital-to-analog converter; their functions, pinouts, and electrical characteristics are incompatible, so substitution is not feasible in any design.
Different device function
Different pinout
Different package
Different supply requirements
Parts at a glance
Part B
AD7111ACNZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3780 PCS
- Package
- DIP-16
- Series
- Data Acquisition - Digital to Analog Converters (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 | AD7111ACNZ | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices | Analog Devices | Same manufacturer ensures consistent quality and documentation, but the two parts belong to different product families. |
| Function / Category | 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 | 8-lead PDIP | 16-lead PDIP | Different pin counts and footprints mean they cannot be interchanged on the same PCB layout. |
| Number of Pins | 8 | 16 | Pin count mismatch prevents direct drop-in replacement and requires different socketing. |
| Supply Voltage Range | ±4.5 V to ±18 V (dual supply) | +5 V to +15 V (single supply) | Different supply requirements affect power design and compatibility with existing rails. |
| Signal Interface | Analog voltage input/output | Digital parallel input, analog current output | The op amp processes analog signals while the DAC converts digital codes to analog, so their interface roles differ completely. |
| Resolution / Precision | Not applicable (analog amplifier) | 8-bit DAC resolution | Resolution is a defining DAC specification; an op amp has no equivalent digital resolution metric. |
| 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 environmental tolerance is comparable. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD711JN | AD7111ACNZ |
|---|---|---|
| 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 AD7111ACNZ interchangeable?
No. The AD711JN is a precision low-noise operational amplifier, while the AD7111ACNZ is a multiplying digital-to-analog converter (DAC). They are functionally different devices and cannot be substituted for one another.
What are the core functions of the AD711JN and AD7111ACNZ?
The AD711JN is a high-speed, precision BiFET operational amplifier featuring low offset voltage and low input bias current. The AD7111ACNZ is a CMOS multiplying DAC designed for digital-to-analog conversion with a current output.
What package types do the AD711JN and AD7111ACNZ use?
The AD711JN is supplied in a 8-lead PDIP (plastic dual in-line package). The AD7111ACNZ is supplied in a 16-lead PDIP. The different pin counts and pinouts prevent any physical or electrical interchangeability.
Do the AD711JN and AD7111ACNZ share the same supply voltage requirements?
No. The AD711JN operates from dual supplies typically ranging from ±4.5 V to ±18 V. The AD7111ACNZ operates from a single +5 V supply (with specific logic-level requirements). Designers must verify supply compatibility against the respective datasheets.
Can the AD711JN be used as an output amplifier with the AD7111ACNZ?
Yes, in principle the AD711JN can serve as an external op-amp for current-to-voltage conversion or buffering of the AD7111ACNZ current output, provided the circuit is designed according to both datasheets. However, this is a system-level design choice, not a direct replacement.
What are the key differences in input/output characteristics between the two parts?
The AD711JN has a voltage input and voltage output with low offset and low bias current. The AD7111ACNZ has a digital input (8-bit) and a current output, with a multiplying reference input. Their signal domains and interface types are fundamentally different.
Are the AD711JN and AD7111ACNZ RoHS compliant?
Compliance status must be verified per specific orderable part number and manufacturer documentation. The "N" suffix in both part numbers typically denotes a PDIP package; RoHS status should be confirmed from the official Analog Devices datasheet or a trusted distributor listing for the exact variant.