AD779KNZ Equivalent & Substitute Parts

Part Overview

The AD779KNZ is a 14-bit analog-to-digital converter manufactured by Analog Devices Inc., designed for single-ended input data acquisition applications. This device features a 1:1 sample-and-hold to ADC ratio with a 128 kHz sampling rate and operates with ±12V analog supply and 5V digital supply. The AD779KNZ is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and component procurement.

Substiute Parts

AD779KNZ

Analog Devices Inc.In Stock: 1006AD779KNZ Datasheet

Current PartRFQ

AD779JNZ

Analog Devices Inc.In Stock: 10244AD779JNZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AD779KNZ is determined by strict equivalence across the following critical parameters:

• Resolution: 14-bit ADC architecture
• Sampling Rate: 128 kHz per second
• Input Configuration: Single-ended, single input channel
• Data Interface: Parallel output
• S/H-ADC Ratio: 1:1 configuration
• Supply Voltages: ±12V analog and 5V digital
• Package: 28-DIP through-hole form factor
• Reference: Dual reference capability (external and internal)

The AD779JNZ qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility. The primary distinction is product status: AD779JNZ is active and available, whereas AD779KNZ is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The AD779JNZ is the direct equivalent substitute for the AD779KNZ. Both devices share identical electrical and mechanical specifications, ensuring pin-for-pin compatibility and functional equivalence in existing circuit designs.

The AD779JNZ offers the advantage of active product status with current manufacturing support and availability. The device is RoHS3 compliant and REACH unaffected, meeting modern regulatory requirements. For new designs or system refreshes, the AD779JNZ is the appropriate selection.

No design modifications, PCB alterations, or firmware changes are required when substituting AD779JNZ for AD779KNZ. The 28-DIP through-hole package remains identical, and all electrical interface parameters are preserved.

Frequently Asked Questions (FAQ)

Q: Can AD779JNZ be used as a direct replacement for AD779KNZ?

A: Yes. The AD779JNZ is a direct equivalent substitute. All electrical parameters, pin assignments, and mechanical specifications are identical. No circuit modifications are necessary.

Q: What is the primary difference between AD779KNZ and AD779JNZ?

A: The AD779KNZ is obsolete with no current manufacturing. The AD779JNZ is an active product with current availability and regulatory compliance certifications (RoHS3, REACH unaffected).

Q: Are there any package or mounting differences?

A: No. Both devices use the 28-DIP (0.600", 15.24mm) through-hole package with identical pin configurations and mechanical dimensions.

Q: What supply voltages are required for AD779JNZ?

A: The AD779JNZ requires ±12V for analog supply and 5V for digital supply, identical to the AD779KNZ.

Q: Is the AD779JNZ suitable for 0°C to 70°C operating temperature range applications?

A: Yes. The AD779JNZ operates across the 0°C to 70°C temperature range, matching the AD779KNZ specification.

Q: Does AD779JNZ support both internal and external reference configurations?

A: Yes. The AD779JNZ supports both external and internal reference types, providing design flexibility equivalent to the AD779KNZ.