AD780AN Equivalent & Substitute Parts

Part Overview

The AD780AN is a Series, Shunt Voltage Reference IC manufactured by Analog Devices Inc., designed for precision voltage reference applications requiring programmable output levels of ±2.5V or ±3V. This component operates as a programmable voltage reference with ±0.2% and ±0.17% tolerance specifications, suitable for power management and precision analog circuits.

The AD780AN is classified as Obsolete. Locating equivalent substitute parts is necessary to support legacy system maintenance, design updates, and continued production of equipment utilizing this reference IC.

Substiute Parts

AD780AN
Analog Devices Inc.In Stock: 1980AD780AN Datasheet
AD780AN
Current Part
AD780ANZ
Analog Devices Inc.In Stock: 9896AD780ANZ Datasheet
AD780ANZ
Direct

Key Parameters

Parameter Specification
Reference Type Series, Shunt
Output Type Programmable
Voltage - Output (Min/Fixed) ±2.5V, ±3V
Current - Output 10 mA
Tolerance ±0.2%, ±0.17%
Temperature Coefficient 7ppm/°C
Noise - 0.1Hz to 10Hz 4µVp-p
Voltage - Input 4V ~ 36V
Current - Supply 1mA
Operating Temperature -40°C ~ 85°C (TA)
Package / Case 8-DIP (0.300", 7.62mm)
Mounting Type Through Hole

Substitute Part Grouping Explanation

Substitution of the AD780AN is determined by strict equivalence across the following critical parameters:

  • Reference Type: Series, Shunt configuration
  • Output Type: Programmable voltage selection
  • Voltage Output Levels: ±2.5V, ±3V capability
  • Current Output: 10 mA minimum
  • Tolerance: ±0.2%, ±0.17% accuracy
  • Temperature Coefficient: 7ppm/°C thermal stability
  • Input Voltage Range: 4V ~ 36V operation
  • Package: 8-DIP (0.300", 7.62mm) through-hole form factor
  • Mounting: Through-hole PCB compatibility

The AD780ANZ qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility across all parameters listed above.

Parameter Comparison

Parameter AD780AN AD780ANZ
Manufacturer Analog Devices Inc. Analog Devices Inc.
Reference Type Series, Shunt Series, Shunt
Output Type Programmable Programmable
Voltage - Output (Min/Fixed) ±2.5V, ±3V ±2.5V, ±3V
Current - Output 10 mA 10 mA
Tolerance ±0.2%, ±0.17% ±0.2%, ±0.17%
Temperature Coefficient 7ppm/°C 7ppm/°C
Noise - 0.1Hz to 10Hz 4µVp-p 4µVp-p
Voltage - Input 4V ~ 36V 4V ~ 36V
Current - Supply 1mA 1mA
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA)
Package / Case 8-DIP (0.300", 7.62mm) 8-DIP (0.300", 7.62mm)
Mounting Type Through Hole Through Hole
Product Status Obsolete Active
Packaging Not specified Tube
RoHS Status Not specified ROHS3 Compliant
REACH Status Not specified REACH Unaffected

Engineering Selection Recommendations

The AD780ANZ is the direct substitute for the AD780AN. Both components share identical electrical and mechanical specifications, ensuring pin-for-pin and functional compatibility in existing circuit designs.

The AD780ANZ carries Active product status, whereas the AD780AN is Obsolete. The AD780ANZ is ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements for new designs and production continuity.

Selection of the AD780ANZ is appropriate for legacy system support, design refreshes, and new production requiring equivalent voltage reference performance with current regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the AD780ANZ directly replace the AD780AN in existing designs?

A: Yes. The AD780ANZ is electrically and mechanically identical to the AD780AN. Both components feature the same 8-DIP through-hole package, identical voltage output levels (±2.5V, ±3V), tolerance specifications (±0.2%, ±0.17%), and operating parameters. Direct PCB substitution is supported without circuit modification.

Q: What is the primary difference between AD780AN and AD780ANZ?

A: The AD780AN is Obsolete, while the AD780ANZ is Active. The AD780ANZ includes ROHS3 Compliance and REACH Unaffected status. Packaging differs: AD780ANZ is supplied in Tube format. All electrical and mechanical specifications remain identical.

Q: Are there any package compatibility considerations?

A: Both parts use the 8-DIP (0.300", 7.62mm) through-hole package. PCB footprints and mounting requirements are identical. The AD780ANZ is supplied in Tube packaging, which does not affect component performance or installation.

Q: Does the AD780ANZ meet current environmental regulations?

A: Yes. The AD780ANZ is ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory standards for electronic components in most jurisdictions.

Q: What parameters determine substitution eligibility for voltage reference ICs in this category?

A: Substitution is determined by matching Reference Type (Series, Shunt), Output Type (Programmable), Voltage Output Levels (±2.5V, ±3V), Current Output (10 mA), Tolerance (±0.2%, ±0.17%), Temperature Coefficient (7ppm/°C), Input Voltage Range (4V ~ 36V), and Package form factor (8-DIP through-hole). All parameters must align for functional equivalence.

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