Part A
AD711JN
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5279 ПКС
- Package
- DIP-8
- Series
- Линейные - Усилетели - Приборы, ОП Усилетели, Буферные Усилетели
Replacement verdict
Not a drop-in replacement
The AD711JN and AD7111LNZ are not functionally interchangeable. The AD711JN is a precision low-noise operational amplifier in an 8-pin PDIP package, while the AD7111LNZ is a multiplying digital-to-analog converter in a 20-pin PDIP package. Their device functions, pin configurations, and package footprints differ fundamentally, so the AD7111LNZ cannot serve as a substitute for the AD711JN in any design.
Different device function
Different package footprint
Different pin count
Different supply requirements
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 | AD7111LNZ | Why it matters |
|---|---|---|---|
| Amplifier Type | JFET-input operational amplifier | Multiplying digital-to-analog converter (DAC) | These are fundamentally different device classes, so they are not functionally substitutable in the same circuit role. |
| Package / Mounting | 8-lead PDIP (through-hole) | 20-lead PDIP (through-hole) | Different pin counts and footprints prevent direct board-level interchange. |
| Number of Pins | 8 | 20 | Pin count determines socket and PCB compatibility. |
| Primary Function | Voltage signal amplification / buffering | Digital-to-analog conversion with multiplication | The core signal-processing function differs, so one cannot replace the other in an application. |
| Supply Voltage Range | ±4.5 V to ±18 V (dual supply) | +5 V to +15 V (single supply, per datasheet) | Supply requirements must match the system rails for safe and correct operation. |
| Input Signal Domain | Analog voltage input | Digital (parallel) input plus analog reference | The interface type determines how each device connects to surrounding circuitry. |
| Output Signal Domain | Analog voltage output | Analog current output | Voltage versus current output requires different downstream signal conditioning. |
| Typical Application | Precision analog signal conditioning, active filters, buffers | Digital gain control, programmable attenuation, multiplying DAC circuits | Intended use cases differ, confirming they serve distinct design roles. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD711JN | AD7111LNZ |
|---|---|---|
| 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 AD7111LNZ interchangeable?
No. The AD711JN is a precision low-cost operational amplifier, while the AD7111LNZ is a multiplying digital-to-analog converter (DAC). They are functionally different devices and cannot be substituted for one another.
What are the key functional differences between the AD711JN and AD7111LNZ?
The AD711JN is a single op amp offering low offset voltage, low drift, and high open-loop gain. The AD7111LNZ is a CMOS multiplying DAC with a 16-bit digital input and current output, designed for digital-to-analog conversion rather than signal amplification.
What package types do the AD711JN and AD7111LNZ use?
The AD711JN is supplied in an 8-lead PDIP (plastic dual in-line package). The AD7111LNZ is supplied in a 20-lead PDIP. The different pin counts and pin functions prevent any direct PCB footprint compatibility.
Do the AD711JN and AD7111LNZ share the same supply voltage requirements?
No. The AD711JN operates from dual supplies typically ranging from ±4.5 V to ±18 V. The AD7111LNZ operates from a single +5 V supply (with specific logic-level requirements). Their supply architectures and voltage ranges differ.
Can the AD711JN be used as an output amplifier for the AD7111LNZ?
Yes, in principle. The AD7111LNZ provides a current output that requires an external op amp for current-to-voltage conversion. The AD711JN, being a precision op amp, can serve this role if its specifications (offset, drift, bandwidth) meet the application requirements. However, this is a system-level design choice, not a direct replacement.
What are the primary applications for each device?
The AD711JN is used in precision instrumentation, active filters, and signal conditioning. The AD7111LNZ is used in digital-to-analog conversion, programmable gain/attenuation, and multiplying applications such as waveform generation and modulation.
Are the AD711JN and AD7111LNZ RoHS compliant?
RoHS compliance depends on the specific ordering code and manufacturer revision. The "N" suffix in both part numbers typically denotes a PDIP package; however, RoHS status must be verified against the manufacturer's datasheet or a trusted distributor listing for the exact orderable part number. Do not assume compliance without confirmation.