DAC101C081CISDX 10-Bit Digital to Analog Converter Equivalent & Substitute Parts

Part Overview

The DAC101C081CISDX is a 10-bit digital to analog converter manufactured by Texas Instruments, designed for data acquisition applications. This device features a single D/A converter with voltage-buffered output, I2C data interface, and operates across a 2.7V to 5.5V supply range. The main part number is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing production and design requirements. Substitute parts maintain identical electrical and mechanical specifications while offering different packaging configurations and product status classifications.

Key Parameters

Parameter	Specification
Number of Bits	10
Number of D/A Converters	1
Output Type	Voltage - Buffered
Data Interface	I2C
Settling Time	6µs
Voltage - Supply, Analog	2.7V ~ 5.5V
Voltage - Supply, Digital	2.7V ~ 5.5V
INL/DNL (LSB)	+0.6/-0.4, +0.12/-0.04
Architecture	String DAC
Operating Temperature	-40°C ~ 125°C
Package / Case	6-WDFN Exposed Pad
Supplier Device Package	6-WSON (2.2x2.5)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the DAC101C081CISDX is determined by strict equivalence across the following critical parameters:

10-bit resolution with single D/A converter configuration
Voltage-buffered output with I2C serial interface
6µs settling time and identical INL/DNL specifications
String DAC architecture
2.7V to 5.5V dual supply voltage range
6-WSON (2.2x2.5) package with exposed pad
Surface mount configuration
ROHS3 compliance and MSL Level 1 rating
Operating temperature range of -40°C to 125°C

Substitute parts are classified into two categories: direct manufacturer equivalents with tape and reel packaging, and parametric equivalents including automotive-grade variants with AEC-Q100 qualification. All substitute parts maintain identical electrical performance and mechanical compatibility with the main part number.

Parameter Comparison

Part Number	Manufacturer	Product Status	Packaging	Bits	D/A Converters	Settling Time	Output Type	Data Interface	Supply Voltage (Analog)	Supply Voltage (Digital)	Package Type	Grade	Qualification	Inventory
DAC101C081CISDX	Texas Instruments	Obsolete	Bulk	10	1	6µs	Voltage - Buffered	I2C	2.7V ~ 5.5V	2.7V ~ 5.5V	6-WSON (2.2x2.5)	Commercial	—	755 Pcs
DAC101C081CISDX/NOPB	Texas Instruments	Active	Tape & Reel (TR)	10	1	6µs	Voltage - Buffered	I2C	2.7V ~ 5.5V	2.7V ~ 5.5V	6-WSON (2.2x2.5)	Commercial	—	675 Pcs
DAC101C081CISD/NOPB	Texas Instruments	Active	Tape & Reel (TR)	10	1	6µs	Voltage - Buffered	I2C	2.7V ~ 5.5V	2.7V ~ 5.5V	6-WSON (2.2x2.5)	Commercial	—	735 Pcs
DAC101C081QISD/NOPB	Texas Instruments	Active	Tape & Reel (TR)	10	1	6µs	Voltage - Buffered	I2C	2.7V ~ 5.5V	2.7V ~ 5.5V	6-WSON (2.2x2.5)	Automotive	AEC-Q100	5530 Pcs
DAC101C081QISDX/NOPB	Texas Instruments	Active	Tape & Reel (TR)	10	1	6µs	Voltage - Buffered	I2C	2.7V ~ 5.5V	2.7V ~ 5.5V	6-WSON (2.2x2.5)	Automotive	AEC-Q100	1259 Pcs

Engineering Selection Recommendations

Selection among substitute parts should be based on product status and application requirements:

DAC101C081CISDX/NOPB and DAC101C081CISD/NOPB are direct commercial-grade equivalents in active production status. These parts are suitable for standard industrial and consumer applications requiring the same electrical and mechanical specifications as the obsolete main part number.

DAC101C081QISD/NOPB and DAC101C081QISDX/NOPB are automotive-grade variants qualified to AEC-Q100 standards. These parts maintain identical electrical performance and package specifications while meeting automotive industry reliability and qualification requirements. Selection of automotive-grade parts is necessary for applications subject to automotive standards or operating in automotive environments.

The primary distinction between substitute parts lies in packaging configuration (tape and reel versus bulk) and grade classification (commercial versus automotive). All parts share identical core electrical parameters, settling time, output characteristics, and supply voltage specifications.

Frequently Asked Questions (FAQ)

Q: Can DAC101C081CISDX be directly replaced with DAC101C081CISDX/NOPB?

A: Yes. Both parts are electrically and mechanically identical. The primary difference is packaging: DAC101C081CISDX/NOPB is supplied in tape and reel format, while the original is supplied in bulk. The /NOPB designation indicates lead-free solder ball configuration. Both maintain identical electrical performance and 6-WSON (2.2x2.5) package specifications.

Q: What is the difference between commercial-grade and automotive-grade DAC101C081 variants?

A: Commercial-grade parts (C-suffix) and automotive-grade parts (Q-suffix) share identical electrical specifications, resolution, settling time, and package configuration. Automotive-grade variants are qualified to AEC-Q100 standards and are suitable for applications requiring automotive industry compliance. Selection depends on application requirements rather than electrical performance differences.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL Level 1 (unlimited moisture sensitivity) rating, consistent with the main part number specifications.

Q: Does the X or non-X designation in the part number affect electrical compatibility?

A: No. The X designation indicates different packaging tape specifications but does not affect electrical performance or functional compatibility. Both DAC101C081CISD/NOPB and DAC101C081CISDX/NOPB are electrically equivalent and functionally interchangeable.

Q: Can automotive-grade parts be used in commercial applications?

A: Yes. Automotive-grade parts exceed commercial-grade specifications and can be used in any application where commercial-grade parts are specified. However, automotive-grade parts typically carry higher cost due to additional qualification and testing requirements.

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