Part A
AD711JNZ
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 2634 PCS
- Package
- DIP-8
- Series
- Amplificateurs linéaires - instruments, amplificateurs opérationnels, amplificateurs tampons
Replacement verdict
Not a drop-in replacement
The AD711JNZ and AD7111KN are not functionally interchangeable: the AD711JNZ is a precision BiFET operational amplifier in an 8-pin PDIP package, while the AD7111KN is a multiplying DAC in a 16-pin PDIP package. Their device functions, pin counts, and circuit roles differ fundamentally, so substituting one for the other is not feasible without a complete redesign.
Different device function
Different pin count
Different package footprint
Different circuit role
Parts at a glance
Part B
AD7111KN
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 394 PCS
- Package
- DIP-16
- Series
- Acquisition de données - convertisseur numérique - analogique (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 | AD7111KN | Why it matters |
|---|---|---|---|
| Function / Device Type | Precision operational amplifier (op amp) | 8-bit multiplying digital-to-analog converter (DAC) | These are fundamentally different device classes; one is an analog signal amplifier and the other is a digital-to-analog converter, so they are not functionally interchangeable. |
| Package / Mounting | 8-lead PDIP (through-hole) | 16-lead PDIP (through-hole) | Different pin counts and footprints mean they cannot be dropped into the same PCB socket or layout. |
| Number of Pins | 8 | 16 | Pin count determines physical compatibility and the available signal/power connections on the board. |
| Supply Voltage Range | ±4.5 V to ±18 V (dual supply) | +5 V to +15 V (single supply, VDD) | Supply requirements must match the system rails; mismatched ranges can prevent operation or damage the part. |
| Signal Interface | Analog input/output (voltage feedback op amp) | Parallel digital input (8-bit data bus) with analog current output | The interface type dictates how the device connects to surrounding circuitry; analog vs. digital interfaces are not substitutable. |
| Key Performance Metric | High slew rate and low input offset (precision op amp specs) | 8-bit resolution with multiplying (reference-dependent) gain | The primary performance specification reflects the intended application; these metrics are not comparable across device classes. |
| 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 thermal environment is not a differentiator here. |
| Manufacturer | Analog Devices | Analog Devices | Same manufacturer, but the parts belong to different product families with distinct functions. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD711JNZ | AD7111KN |
|---|---|---|
| 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 | 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 AD711JNZ and AD7111KN functionally interchangeable?
No. The AD711JNZ is a precision low-noise BiFET operational amplifier in an 8-lead PDIP package, while the AD7111KN is a multiplying DAC (digital-to-analog converter) in a 16-lead PDIP package. They are different device categories with different pin counts, functions, and application circuits, so they cannot be substituted for one another.
What are the key differences in package and pin count between the AD711JNZ and AD7111KN?
The AD711JNZ is supplied in an 8-lead PDIP (N) package. The AD7111KN is supplied in a 16-lead PDIP (N) package. The differing pin counts and pin functions prevent any direct PCB or socket compatibility between the two parts.
What is the primary function of the AD711JNZ?
The AD711JNZ is a precision operational amplifier featuring a BiFET input stage, intended for high-accuracy analog signal conditioning such as low-noise amplification, buffering, and active filtering. It is not a digital-to-analog converter.
What is the primary function of the AD7111KN?
The AD7111KN is a CMOS multiplying digital-to-analog converter (DAC) that converts a digital input code into a corresponding analog output, with the reference input allowing multiplication of the analog signal. It is not an operational amplifier.
Can the AD711JNZ and AD7111KN be used together in the same circuit?
Yes, they can serve complementary roles in a mixed-signal design: the AD7111KN can perform digital-to-analog conversion, and the AD711JNZ can be used as an analog buffer or amplifier following the DAC output. However, this is a system-level combination, not a replacement of one part by the other.
Do the AD711JNZ and AD7111KN share the same supply voltage requirements?
No. The AD711JNZ is an operational amplifier typically operated from dual supplies (e.g., ±15 V class), while the AD7111KN is a 5 V-class CMOS multiplying DAC with its own specified supply range. Designers must consult each device's datasheet for exact supply limits rather than assuming common rails.
Why is it incorrect to treat the AD711JNZ and AD7111KN as pin-compatible alternatives?
Pin compatibility requires matching package type, pin count, and pin functions. The AD711JNZ is an 8-pin op-amp and the AD7111KN is a 16-pin DAC; their pinouts, signal roles, and package footprints differ, so neither can be dropped into the other's socket or PCB land pattern.