AD5620BCPZ-2500RL7 Equivalent & Substitute Parts

Part Overview

The AD5620BCPZ-2500RL7 is a 12-bit Digital to Analog Converter (DAC) manufactured by Analog Devices Inc., featuring a single voltage-buffered output with internal reference and SPI/DSP data interface. The device is packaged in an 8-LFCSP-WD (3x3) surface mount configuration and operates across the -40°C to 105°C temperature range. This part is classified as Obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	AD5620BCPZ-2500RL7
Manufacturer	Analog Devices Inc.
Category	Data Acquisition
Number of Bits	12
Number of D/A Converters	1
Output Type	Voltage - Buffered
Data Interface	SPI, DSP
Reference Type	Internal
Voltage - Supply, Analog	5V
Voltage - Supply, Digital	5V
INL/DNL (LSB)	±1 (Max), ±0.25 (Max)
Architecture	String DAC
Operating Temperature	-40°C ~ 105°C
Package / Case	8-WDFN, CSP
Supplier Device Package	8-LFCSP-WD (3x3)
Mounting Type	Surface Mount
Product Status	Obsolete
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution for the AD5620BCPZ-2500RL7 is determined by the following critical parameters: resolution (12-bit), single DAC channel, buffered voltage output, data interface compatibility (SPI/DSP), and package form factor. The substitute parts are grouped into two categories based on their relationship to the main part:

Parametric Equivalent: AD5620BCPZ-2RL7 maintains identical electrical specifications and package configuration, differing only in reference voltage configuration details and product status (Active vs. Obsolete).

Functional Substitutes: AD5681RBCPZ-RL7 and AD5512AACPZ-REEL7 provide 12-bit DAC functionality with compatible data interfaces but introduce variations in package size, output buffering, reference type, and supply voltage ranges that must be evaluated for specific application requirements.

Parameter Comparison

Parameter	AD5620BCPZ-2500RL7 (Main)	AD5620BCPZ-2RL7 (Parametric Equivalent)	AD5681RBCPZ-RL7 (Functional Substitute)	AD5512AACPZ-REEL7 (Functional Substitute)
Number of Bits	12	12	12	12
Number of D/A Converters	1	1	1	1
Output Type	Voltage - Buffered	Voltage - Buffered	Voltage - Buffered	Voltage - Unbuffered
Data Interface	SPI, DSP	SPI, DSP	SPI	SPI, DSP
Reference Type	Internal	Internal	External, Internal	External
Voltage - Supply, Analog	5V	5V	2.7V ~ 5.5V	2.7V ~ 5.5V
Voltage - Supply, Digital	5V	5V	2.7V ~ 5.5V	2.7V ~ 5.5V
INL/DNL (LSB)	±1 (Max), ±0.25 (Max)	±1 (Max), ±0.25 (Max)	±1 (Max), ±1 (Max)	±0.5, ±0.5
Settling Time	10µs	10µs	7µs	1µs (Typ)
Architecture	String DAC	String DAC	String DAC	R-2R
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 125°C
Supplier Device Package	8-LFCSP-WD (3x3)	8-LFCSP-WD (3x3)	8-LFCSP-UD (2x2)	16-LFCSP (3x3)
Product Status	Obsolete	Active	Active	Active
Moisture Sensitivity Level (MSL)	3 (168 Hours)	3 (168 Hours)	1 (Unlimited)	3 (168 Hours)

Engineering Selection Recommendations

AD5620BCPZ-2RL7 is the primary parametric equivalent for direct replacement. It maintains identical electrical performance and package configuration while offering Active product status and ROHS3 compliance, eliminating obsolescence concerns without design modification.

AD5681RBCPZ-RL7 serves as a functional substitute for applications requiring extended supply voltage range (2.7V ~ 5.5V), improved moisture sensitivity (MSL 1), and ROHS3/REACH compliance. The smaller package footprint (8-LFCSP-UD 2x2) and faster settling time (7µs) provide design advantages, though DSP interface support is limited to SPI only. This part is suitable for low-power and space-constrained applications.

AD5512AACPZ-REEL7 is applicable where external reference capability and superior settling time (1µs typical) are required. The R-2R architecture and unbuffered output necessitate external buffering and reference circuitry. The 16-pin package and extended temperature range (-40°C ~ 125°C) address specific industrial requirements. This substitute requires the most significant circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can AD5620BCPZ-2RL7 replace AD5620BCPZ-2500RL7 without PCB modifications?

A: Yes. AD5620BCPZ-2RL7 is a parametric equivalent with identical package (8-LFCSP-WD 3x3), pin configuration, electrical specifications, and operating characteristics. No PCB layout changes are required.

Q: What are the key differences between AD5681RBCPZ-RL7 and the original part?

A: AD5681RBCPZ-RL7 differs in package size (8-LFCSP-UD 2x2 vs. 8-LFCSP-WD 3x3), supply voltage range (2.7V ~ 5.5V vs. fixed 5V), reference type flexibility (External/Internal vs. Internal only), data interface (SPI only vs. SPI/DSP), and moisture sensitivity (MSL 1 vs. MSL 3). Settling time is faster at 7µs.

Q: Is AD5512AACPZ-REEL7 a direct substitute?

A: No. AD5512AACPZ-REEL7 requires circuit redesign due to unbuffered output, external reference requirement, 16-pin package (vs. 8-pin), and R-2R architecture. It is suitable only for applications where these differences are acceptable or beneficial.

Q: Which substitute is recommended for new designs?

A: AD5681RBCPZ-RL7 is recommended for new designs due to Active product status, ROHS3 compliance, improved moisture sensitivity, and extended supply voltage range. For legacy system maintenance requiring minimal changes, AD5620BCPZ-2RL7 is the appropriate choice.

Q: Are all substitutes RoHS compliant?

A: AD5620BCPZ-2RL7, AD5681RBCPZ-RL7, and AD5512AACPZ-REEL7 are all ROHS3 compliant. AD5681RBCPZ-RL7 and AD5512AACPZ-REEL7 also carry REACH Unaffected status.

Q: What is the impact of package size differences?

A: AD5681RBCPZ-RL7 uses a smaller 8-LFCSP-UD (2x2) package compared to the original 8-LFCSP-WD (3x3), reducing PCB footprint. AD5512AACPZ-REEL7 uses a larger 16-LFCSP (3x3) package. Package changes require PCB layout redesign and thermal management re-evaluation.

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