AD7835AP Equivalent & Substitute Parts

Part Overview

The AD7835AP is a 14-bit Digital to Analog Converter (DAC) with 4 independent channels, manufactured by Analog Devices Inc. in a 44-PLCC surface mount package. This component features voltage-buffered outputs, parallel data interface, and external reference capability, designed for precision analog signal generation in data acquisition systems.

The AD7835AP is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support legacy system maintenance and reproduction.

Substiute Parts

AD7835AP

Analog Devices Inc.In Stock: 794AD7835AP Datasheet

Current PartRFQ

AD7835APZ

Analog Devices Inc.In Stock: 1423AD7835APZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AD7835AP is determined by strict equivalence across the following critical parameters:

• Resolution and Channel Count: 14-bit resolution with 4 independent D/A converters
• Output Characteristics: Voltage-buffered output with external reference configuration
• Interface Protocol: Parallel data interface
• Supply Voltage Ranges: Analog supply ±11.4V to ±15.75V; Digital supply 5V
• Accuracy Specifications: INL/DNL performance of ±2 LSB (Max) and ±0.9 LSB (Max)
• Thermal Performance: 10µs typical settling time
• Package Compatibility: 44-PLCC surface mount package with identical pinout and mechanical dimensions (16.59x16.59mm)
• Operating Temperature Range: -40°C to 85°C

The AD7835APZ qualifies as a direct substitute based on identical electrical specifications, package geometry, and pinout configuration.

Parameter Comparison

Engineering Selection Recommendations

The AD7835APZ is the direct substitute for the obsolete AD7835AP. Both parts share identical electrical specifications, package geometry, and performance characteristics. The AD7835APZ carries Active product status and is ROHS3 compliant with REACH unaffected designation, providing regulatory compliance advantages for new designs and legacy system updates.

Selection between these parts should be based on availability and supply chain requirements. The AD7835APZ is currently available in higher inventory quantities (1402 pieces) compared to the AD7835AP (714 pieces), making it the preferred choice for procurement planning.

Frequently Asked Questions (FAQ)

Q: Can the AD7835APZ be used as a direct replacement for the AD7835AP in existing designs?

A: Yes. The AD7835APZ is electrically and mechanically identical to the AD7835AP. Both parts feature the same 14-bit resolution, 4-channel configuration, 44-PLCC package, pinout, and performance specifications. No circuit modifications are required.

Q: What is the difference between AD7835AP and AD7835APZ?

A: The primary difference is product status and packaging. The AD7835AP is obsolete and supplied in standard packaging, while the AD7835APZ is Active and supplied in tube packaging. Electrically and functionally, both parts are equivalent.

Q: Are there any compliance or certification differences?

A: The AD7835APZ includes ROHS3 compliance and REACH unaffected status certifications. The AD7835AP does not list these certifications. For applications requiring regulatory compliance documentation, the AD7835APZ is the appropriate choice.

Q: What is the 44-PLCC package specification?

A: The 44-PLCC (Plastic Leaded Chip Carrier) is a surface mount package with J-lead configuration and mechanical dimensions of 16.59mm × 16.59mm. Both the AD7835AP and AD7835APZ use identical package geometry and pinout.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes. Both parts have identical pinout, package footprint, and mounting requirements. PCB designs do not require modification when substituting between AD7835AP and AD7835APZ.

Q: What supply voltage ranges are supported?

A: Both parts support analog supply voltages of ±11.4V to ±15.75V and digital supply voltage of 5V. Verify your power supply design accommodates these ranges.