DAC7573IPWG4 Equivalent & Substitute Parts

Part Overview

The DAC7573IPWG4 is a 12-bit digital-to-analog converter (DAC) with 4 independent channels, manufactured by Texas Instruments in a 16-TSSOP surface mount package. This component features buffered voltage output, I2C data interface, and external reference capability, operating across a 2.7V to 5.5V supply range for both analog and digital domains.

The DAC7573IPWG4 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this component.

Key Parameters

Parameter	Value
Number of Bits	12
Number of D/A Converters	4
Output Type	Voltage - Buffered
Data Interface	I2C
Settling Time	10µs
Reference Type	External
Voltage - Supply, Analog	2.7V ~ 5.5V
Voltage - Supply, Digital	2.7V ~ 5.5V
Package / Case	16-TSSOP (0.173", 4.40mm Width)
Operating Temperature	-40°C ~ 105°C
Architecture	String DAC

Substitute Part Grouping Explanation

Substitute parts for the DAC7573IPWG4 are qualified based on the following critical parameters:

12-bit resolution with 4 independent D/A converter channels
Buffered voltage output configuration
I2C serial data interface
External reference input capability
10µs settling time performance
16-TSSOP surface mount package with identical physical dimensions
Operating temperature range of -40°C to 105°C
String DAC architecture

Parts meeting these specifications are functionally equivalent and can replace the DAC7573IPWG4 in circuit designs. Variations in supply voltage ranges, INL/DNL specifications, and product status are noted but do not preclude substitution when electrical performance requirements are satisfied.

Parameter Comparison

Parameter	DAC7573IPWG4	AD5326BRUZ	DAC7573IPW
Manufacturer	Texas Instruments	Analog Devices Inc.	Texas Instruments
Number of Bits	12	12	12
Number of D/A Converters	4	4	4
Output Type	Voltage - Buffered	Voltage - Buffered	Voltage - Buffered
Data Interface	I2C	I2C	I2C
Settling Time	10µs	10µs	10µs
Reference Type	External	External	External
Voltage - Supply, Analog	2.7V ~ 5.5V	2.5V ~ 5.5V	2.7V ~ 5.5V
Voltage - Supply, Digital	2.7V ~ 5.5V	2.5V ~ 5.5V	2.7V ~ 5.5V
INL/DNL (LSB)	±8 (Max), ±1 (Max)	±2, ±0.2	±8 (Max), ±1 (Max)
Package / Case	16-TSSOP	16-TSSOP	16-TSSOP
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

DAC7573IPW (Texas Instruments) is the parametric equivalent substitute. This part maintains identical electrical specifications, supply voltage ranges, and INL/DNL performance to the DAC7573IPWG4. The primary distinction is product status: DAC7573IPW is active and available, whereas DAC7573IPWG4 is obsolete. Both parts are ROHS3 compliant and share the same base product number (DAC7573), differing only in packaging configuration (IPW vs. IPWG4).

AD5326BRUZ (Analog Devices Inc.) is the manufacturer-recommended substitute. This part satisfies all functional and mechanical requirements with improved INL/DNL specifications (±2, ±0.2 versus ±8, ±1). The AD5326BRUZ operates across a slightly lower minimum supply voltage (2.5V versus 2.7V) and is actively manufactured. ROHS3 compliance and identical package geometry ensure direct substitution capability.

Both substitute parts are ROHS3 compliant and REACH unaffected, meeting regulatory requirements equivalent to the original component.

Frequently Asked Questions (FAQ)

Q: Can DAC7573IPW directly replace DAC7573IPWG4 in existing designs?

A: Yes. DAC7573IPW is a parametric equivalent with identical electrical specifications, supply voltage ranges, settling time, and package dimensions. The only difference is product status (active versus obsolete) and packaging type designation.

Q: What are the key differences between AD5326BRUZ and DAC7573IPWG4?

A: Both parts are functionally equivalent 12-bit, 4-channel DACs in 16-TSSOP packages with I2C interfaces. AD5326BRUZ offers superior INL/DNL performance (±2, ±0.2 LSB versus ±8, ±1 LSB) and operates at a lower minimum supply voltage (2.5V versus 2.7V). AD5326BRUZ is actively manufactured by Analog Devices Inc.

Q: Are there any package compatibility concerns with these substitutes?

A: No. All three parts use identical 16-TSSOP surface mount packages with 0.173" width and 4.40mm dimensions. Pin-to-pin compatibility is maintained across all substitutes.

Q: Do these substitutes meet the same compliance standards?

A: Yes. All substitute parts are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity levels (MSL 1 - Unlimited). Regulatory compliance is equivalent to the original DAC7573IPWG4.

Q: Which substitute should be selected for new designs?

A: For new designs, AD5326BRUZ is recommended due to active product status and superior INL/DNL specifications. For direct replacement in existing systems, DAC7573IPW provides identical performance characteristics to the original component.

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