Part A
AD711JNZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2634 PCS
- Package
- DIP-8
- Series
- Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
Replacement verdict
Not a drop-in replacement
The AD711JNZ and AD7111ACN are not interchangeable: the AD711JNZ is a precision BiFET operational amplifier in an 8-pin PDIP package, while the AD7111ACN is a multiplying DAC in a 16-pin PDIP package. They differ in function, pin count, footprint, and electrical characteristics, so substituting one for the other is not feasible without a complete circuit redesign.
Different device function
Different pin count
Different footprint
Different electrical interface
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 | AD7111ACN | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices | Analog Devices | Same manufacturer ensures consistent quality and documentation, though 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 / Mounting | 8-pin PDIP (through-hole) | 16-pin PDIP (through-hole) | Different pin counts and footprints prevent direct board-level interchange. |
| Number of Pins | 8 | 16 | Pin count determines socket and PCB compatibility; mismatched counts cannot be dropped in interchangeably. |
| Supply Voltage Range | ±4.5 V to ±18 V (dual supply) | +5 V single supply (TTL/CMOS logic compatible) | Supply requirements differ significantly, affecting power design and logic interfacing. |
| Signal Interface | Analog input/output (voltage feedback op amp) | 8-bit digital input, analog current output | One processes analog signals while the other converts digital codes to analog, so their roles in a system are entirely different. |
| Resolution / Precision | Not applicable (continuous analog amplifier) | 8-bit DAC resolution | Resolution is a defining DAC specification; an op amp has no equivalent quantization 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 | AD711JNZ | AD7111ACN |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| 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 AD7111ACN interchangeable in a circuit design?
No. The AD711JNZ is a precision low-noise operational amplifier, while the AD7111ACN is a multiplying digital-to-analog converter (DAC). They are functionally different device categories and cannot be substituted for one another.
What are the core functional differences between the AD711JNZ and AD7111ACN?
The AD711JNZ is a single op amp offering high open-loop gain, low offset voltage, and low noise for analog signal conditioning. The AD7111ACN is an 8-bit multiplying DAC with a current output, intended for digital-to-analog conversion and multiplying applications.
What package types do the AD711JNZ and AD7111ACN use?
Both devices are supplied in through-hole packages. The AD711JNZ is provided in an 8-lead PDIP, and the AD7111ACN is provided in a 16-lead PDIP, so their pin counts and PCB footprints differ.
Do the AD711JNZ and AD7111ACN have the same pinout?
No. The AD711JNZ uses an 8-pin op amp pinout (offset null, inverting input, non-inverting input, V-, output, V+, offset null), while the AD7111ACN uses a 16-pin DAC pinout including digital data inputs, VREF, RFB, IOUT, and supply pins. The pinouts are not compatible.
What are the supply voltage requirements for each device?
The AD711JNZ operates from dual supplies typically ranging from ±4.5 V to ±18 V. The AD7111ACN operates from a +5 V to +15 V single supply (or equivalent dual supplies within its rated range) as specified in its datasheet. Designs must verify exact limits against the manufacturer datasheet.
Can the AD711JNZ be used as an output buffer for the AD7111ACN?
Yes, in principle. The AD7111ACN provides a current output, and an external op amp such as the AD711JNZ can be used to convert that current to a voltage and buffer the DAC output. The external op amp's input and output ranges must be compatible with the DAC's reference and supply conditions.
Which device is suitable for precision analog signal amplification?
The AD711JNZ is the appropriate choice for precision analog signal amplification due to its low offset voltage, low noise, and high open-loop gain. The AD7111ACN is a DAC and is not intended for analog signal amplification.
Which device is suitable for digital-to-analog conversion or multiplying applications?
The AD7111ACN is the appropriate choice for 8-bit digital-to-analog conversion and multiplying applications. The AD711JNZ is an op amp and does not perform digital-to-analog conversion.