AD7845JPZ Equivalent & Substitute Parts

Part Overview

The AD7845JPZ is a 12-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc., designed for data acquisition applications requiring voltage output conversion. This surface-mount component operates with external voltage references and delivers buffered analog output through a parallel data interface. The part is currently in active production status with 739 units available in inventory. Alternative components may be required due to supply constraints, design optimization, or specific application requirements where equivalent electrical and mechanical specifications are maintained.

Substiute Parts

AD7845JPZ

Analog Devices Inc.In Stock: 787AD7845JPZ Datasheet

Current PartRFQ

MX7845JP+

Analog Devices Inc./Maxim IntegratedIn Stock: 896MX7845JP+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AD7845JPZ is permissible with components that maintain identical electrical and mechanical specifications across the following critical parameters:

• Resolution: 12-bit conversion
• Converter Count: Single D/A converter per package
• Settling Time: 5µs maximum
• Output Configuration: Voltage output with buffering
• Interface Protocol: Parallel data input
• Reference Input: External reference requirement
• Supply Voltage Range: ±14.25V ~ 15.75V for analog supply
• Linearity Performance: ±1 LSB maximum for both INL and DNL
• Circuit Architecture: R-2R resistor ladder topology
• Temperature Range: 0°C to 70°C operation
• Physical Package: 28-pin LCC with J-lead configuration
• Surface Mount Compatibility: Required

The MX7845JP+ meets all specified electrical parameters and maintains package compatibility, qualifying it as a parametric equivalent for direct substitution in applications where these performance criteria are required.

Parameter Comparison

Engineering Selection Recommendations

Both the AD7845JPZ and MX7845JP+ are active production components with full ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements. The MX7845JP+ offers improved moisture sensitivity performance (MSL 1 with unlimited shelf life) compared to the AD7845JPZ (MSL 3 with 168-hour limitation), providing extended storage capability without baking requirements. Selection between these components should be based on supply availability, inventory requirements, and moisture sensitivity constraints specific to your manufacturing and storage environment. Both components are electrically and mechanically interchangeable for applications requiring 12-bit DAC functionality with the specified electrical parameters and 28-PLCC package configuration.

Frequently Asked Questions (FAQ)

Q: Can the MX7845JP+ be used as a direct replacement for the AD7845JPZ in existing designs?

A: Yes. The MX7845JP+ maintains identical electrical specifications across all critical parameters including resolution, settling time, output type, supply voltage range, and linearity performance. The 28-PLCC package configuration is identical, enabling direct PCB substitution without design modification.

Q: What is the significance of the different MSL ratings between these components?

A: The AD7845JPZ carries MSL 3 (168-hour shelf life), requiring component baking before assembly if storage exceeds the specified duration. The MX7845JP+ carries MSL 1 (unlimited shelf life), eliminating baking requirements and providing greater flexibility in inventory management and supply chain logistics.

Q: Are there any differences in the data interface or control signals between these parts?

A: No. Both components use identical parallel data interface architecture with external reference input requirements. Control signal timing and protocol specifications are equivalent, ensuring seamless integration into existing firmware and hardware implementations.

Q: Do both components support the same operating temperature range?

A: Yes. Both the AD7845JPZ and MX7845JP+ operate across the 0°C to 70°C temperature range, maintaining specified linearity and settling time performance throughout this range.

Q: What compliance certifications apply to both components?

A: Both components are ROHS3 compliant and REACH unaffected, meeting current environmental regulations. Both carry EAR99 export classification and 8542.39.0001 HTSUS code for tariff purposes.