DDC112Y/2K Equivalent & Substitute Parts

Part Overview

The DDC112Y/2K is a 20-bit sigma-delta analog-to-digital converter manufactured by Texas Instruments, designed for precision data acquisition applications. This device features dual single-ended inputs, SPI data interface, and simultaneous sampling capability in a 32-TQFP surface mount package. The part is currently in active production status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified to provide alternative packaging options and inventory availability while maintaining identical electrical and mechanical specifications.

Key Parameters

Parameter	Specification
Resolution	20 Bit
Number of Inputs	2
Input Type	Single Ended
Sampling Rate	3 kHz
Architecture	Sigma-Delta
Data Interface	SPI
Number of A/D Converters	1
Analog Supply Voltage	5V
Digital Supply Voltage	5V
Operating Temperature Range	-40°C to 85°C
Package Type	32-TQFP (7x7)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	2 (1 Year)

Substitute Part Grouping Explanation

Substitute parts for the DDC112Y/2K are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution criteria are:

Identical resolution: 20-bit
Identical input configuration: 2 single-ended inputs
Identical sampling rate: 3 kHz
Identical architecture: Sigma-Delta
Identical data interface: SPI
Identical supply voltages: 5V analog and digital
Identical package: 32-TQFP (7x7)
Identical mounting type: Surface Mount
Identical operating temperature range: -40°C to 85°C
Identical compliance certifications: ROHS3, REACH Unaffected

The identified substitutes differ only in packaging format (Tape & Reel versus Cut Tape & Digi-Reel) and inventory availability, with no variation in electrical performance or functional capability.

Parameter Comparison

Parameter	DDC112Y/2K	DDC112Y/250	DDC112YK/250
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments
Resolution	20 Bit	20 Bit	20 Bit
Number of Inputs	2	2	2
Input Type	Single Ended	Single Ended	Single Ended
Sampling Rate	3 kHz	3 kHz	3 kHz
Architecture	Sigma-Delta	Sigma-Delta	Sigma-Delta
Data Interface	SPI	SPI	SPI
Number of A/D Converters	1	1	1
Analog Supply Voltage	5V	5V	5V
Digital Supply Voltage	5V	5V	5V
Operating Temperature Range	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C
Package / Case	32-TQFP	32-TQFP	32-TQFP
Supplier Device Package	32-TQFP (7x7)	32-TQFP (7x7)	32-TQFP (7x7)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	2 (1 Year)	2 (1 Year)	2 (1 Year)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
Packaging Format	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel	Tape & Reel (TR)
Inventory Status	1098 Pcs New Original	3234 Pcs New Original	2268 Pcs New Original

Engineering Selection Recommendations

All three part numbers—DDC112Y/2K, DDC112Y/250, and DDC112YK/250—are functionally equivalent for data acquisition applications requiring 20-bit resolution, dual single-ended inputs, and 3 kHz sampling rate. Selection between these parts is determined by packaging and supply chain requirements rather than electrical performance.

DDC112Y/2K and DDC112YK/250 are supplied in Tape & Reel format, suitable for automated assembly processes. DDC112Y/250 is supplied in Cut Tape & Digi-Reel format, appropriate for lower-volume or manual assembly operations.

All parts maintain active product status, full RoHS3 compliance, and REACH unaffected designation. Moisture sensitivity level 2 (1 Year) applies uniformly across all variants, requiring standard handling and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can DDC112Y/250 be used as a direct replacement for DDC112Y/2K?

A: Yes. Both parts are parametrically identical in all electrical and mechanical specifications. The only difference is packaging format: DDC112Y/2K uses Tape & Reel while DDC112Y/250 uses Cut Tape & Digi-Reel. Selection depends on assembly process requirements.

Q: What is the difference between DDC112YK/250 and DDC112Y/250?

A: Both parts are electrically identical 20-bit sigma-delta ADCs with 2 single-ended inputs and 3 kHz sampling rate. The difference is packaging format: DDC112YK/250 is supplied in Tape & Reel, while DDC112Y/250 is supplied in Cut Tape & Digi-Reel.

Q: Are all three parts suitable for the same PCB assembly process?

A: DDC112Y/2K and DDC112YK/250 are both Tape & Reel packaged and compatible with automated pick-and-place assembly. DDC112Y/250 in Cut Tape & Digi-Reel format is suitable for manual or semi-automated assembly. All three use identical 32-TQFP (7x7) surface mount packages.

Q: Do these parts require different handling or storage procedures?

A: All three parts share identical MSL rating of 2 (1 Year), requiring the same moisture sensitivity handling and storage protocols. No differentiation in environmental management is necessary.

Q: Are there any compliance differences between these substitutes?

A: No. All three parts maintain identical RoHS3 compliance, REACH unaffected status, and regulatory certifications. No compliance trade-offs exist between the substitutes.

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