AD7547LP-REEL Equivalent & Substitute Parts

Part Overview

The AD7547LP-REEL is a 12-bit Digital to Analog Converter (DAC) manufactured by Analog Devices Inc., featuring dual D/A converters in a 28-PLCC surface mount package. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and new design implementations. The AD7547LP-REEL operates with external voltage references and delivers current-mode unbuffered outputs, serving applications requiring parallel data interface architecture with R-2R conversion topology.

Key Parameters

Parameter	Value
Number of Bits	12
Number of D/A Converters	2
Settling Time	1.5µs
Output Type	Current - Unbuffered
Data Interface	Parallel
Reference Type	External
Voltage - Supply, Analog	10.8V ~ 16.5V
Voltage - Supply, Digital	10.8V ~ 16.5V
INL/DNL (LSB)	±0.5 (Max), ±1 (Max)
Architecture	R-2R
Operating Temperature	-40°C ~ 85°C
Package / Case	28-LCC (J-Lead)
Mounting Type	Surface Mount
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the AD7547LP-REEL is determined by strict equivalence across the following critical parameters:

Resolution & Converter Count: 12-bit resolution with dual D/A converters
Output Characteristics: Current-mode unbuffered output with parallel data interface
Reference Architecture: External voltage reference with R-2R topology
Supply Voltage Ranges: Analog and digital supply voltages both 10.8V ~ 16.5V
Linearity Specifications: INL/DNL performance of ±0.5 LSB (Max) and ±1 LSB (Max)
Settling Time: 1.5µs maximum settling time
Thermal Range: Operating temperature -40°C ~ 85°C
Physical Package: 28-PLCC (11.51x11.51) surface mount configuration

The AD7547LPZ-REEL maintains identical electrical and mechanical specifications, differing only in product status (Active vs. Obsolete) and packaging format (Tape & Reel vs. standard packaging).

Parameter Comparison

Parameter	AD7547LP-REEL	AD7547LPZ-REEL
Number of Bits	12	12
Number of D/A Converters	2	2
Settling Time	1.5µs	1.5µs
Output Type	Current - Unbuffered	Current - Unbuffered
Data Interface	Parallel	Parallel
Reference Type	External	External
Voltage - Supply, Analog	10.8V ~ 16.5V	10.8V ~ 16.5V
Voltage - Supply, Digital	10.8V ~ 16.5V	10.8V ~ 16.5V
INL/DNL (LSB)	±0.5 (Max), ±1 (Max)	±0.5 (Max), ±1 (Max)
Architecture	R-2R	R-2R
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	28-LCC (J-Lead)	28-LCC (J-Lead)
Supplier Device Package	28-PLCC (11.51x11.51)	28-PLCC (11.51x11.51)
Mounting Type	Surface Mount	Surface Mount
Base Product Number	AD7547	AD7547
ECCN	EAR99	EAR99
HTSUS	8542.39.0001	8542.39.0001
Product Status	Obsolete	Active
RoHS Status	Not specified	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	3 (168 Hours)
REACH Status	Not specified	REACH Unaffected

Engineering Selection Recommendations

The AD7547LPZ-REEL serves as the direct functional equivalent to the obsolete AD7547LP-REEL. Both components share identical electrical performance specifications and physical packaging, ensuring pin-for-pin compatibility and circuit-level interchangeability.

The AD7547LPZ-REEL holds Active product status, providing access to current manufacturing and supply chain support. This part carries ROHS3 compliance certification and REACH unaffected status, meeting modern regulatory requirements for electronic component procurement.

Moisture sensitivity differs between the two variants: the AD7547LP-REEL specifies MSL 1 (Unlimited), while the AD7547LPZ-REEL specifies MSL 3 (168 Hours). This distinction affects storage and handling protocols but does not impact functional performance in operational environments.

Selection of the AD7547LPZ-REEL is appropriate for applications requiring active product status, regulatory compliance documentation, and ongoing manufacturer support.

Frequently Asked Questions (FAQ)

Q: Are AD7547LP-REEL and AD7547LPZ-REEL electrically identical?

A: Yes. Both components feature identical 12-bit dual D/A converter specifications, settling time, output characteristics, supply voltage ranges, linearity performance, and operating temperature range. Electrical performance is equivalent across all specified parameters.

Q: What is the primary difference between these two part numbers?

A: The AD7547LPZ-REEL is the active production variant with current manufacturer support, while the AD7547LP-REEL is classified as obsolete. The AD7547LPZ-REEL includes ROHS3 compliance and REACH unaffected certifications. Packaging format differs: AD7547LPZ-REEL is supplied in Tape & Reel format.

Q: Can I use AD7547LPZ-REEL as a direct replacement in existing designs?

A: Yes. The AD7547LPZ-REEL provides pin-for-pin compatibility and identical electrical performance. No circuit modifications are required for substitution.

Q: Does the difference in Moisture Sensitivity Level affect circuit performance?

A: No. MSL classification affects component storage and handling procedures but does not impact electrical performance or operational characteristics. Both variants operate identically in deployed applications.

Q: Is the 28-PLCC package identical for both parts?

A: Yes. Both components use the same 28-PLCC (11.51x11.51) surface mount package with J-lead configuration, ensuring mechanical compatibility with existing PCB layouts.

Q: What regulatory certifications does the AD7547LPZ-REEL carry?

A: The AD7547LPZ-REEL is ROHS3 compliant and REACH unaffected. Both components carry EAR99 export classification and 8542.39.0001 HTSUS code.

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