ADS7835EB/2K5 Equivalent & Substitute Parts

Part Overview

The ADS7835EB/2K5 is a 12-bit Analog to Digital Converter (ADC) with Single Ended input, SAR architecture, and SPI data interface. This component is classified as Obsolete, which necessitates identification of equivalent substitute parts for ongoing design support and procurement. The part operates at 500k samples per second with external and internal reference capability, suitable for data acquisition applications requiring single-channel conversion at 5V supply levels.

Key Parameters

Parameter	Value
Resolution (Number of Bits)	12
Sampling Rate	500k SPS
Number of Inputs	1
Input Type	Single Ended
Data Interface	SPI
Architecture	SAR
Reference Type	External, Internal
Analog Supply Voltage	5V
Digital Supply Voltage	5V
Operating Temperature Range	-40°C to 85°C
Package Type	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution for the ADS7835EB/2K5 is determined by strict equivalence across the following parameters: 12-bit resolution, 500k SPS sampling rate, single-channel single-ended input, SPI interface, SAR architecture, dual reference capability (external and internal), 5V analog and digital supply requirements, -40°C to 85°C operating range, and 8-TSSOP/8-MSOP package compatibility.

The substitute parts identified maintain identical electrical and functional specifications. Differentiation among substitutes is based on packaging format (bulk vs. tape & reel), product status (Last Time Buy vs. Obsolete), and RoHS compliance status. All substitutes share the same base product number (ADS7835) and are manufactured by Texas Instruments.

Parameter Comparison

Parameter	ADS7835EB/2K5	ADS7835E/2K5	ADS7835E/250	ADS7835EB/250
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Resolution	12 Bit	12 Bit	12 Bit	12 Bit
Sampling Rate	500k SPS	500k SPS	500k SPS	500k SPS
Number of Inputs	1	1	1	1
Input Type	Single Ended	Single Ended	Single Ended	Single Ended
Data Interface	SPI	SPI	SPI	SPI
Architecture	SAR	SAR	SAR	SAR
Reference Type	External, Internal	External, Internal	External, Internal	External, Internal
Analog Supply	5V	5V	5V	5V
Digital Supply	5V	5V	5V	5V
Operating Temperature	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C
Package / Case	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Last Time Buy	Last Time Buy	Last Time Buy
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Format	Bulk	Bulk	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®
Inventory Status	854 Pcs	20435 Pcs	1475 Pcs	1487 Pcs

Engineering Selection Recommendations

For designs currently using the ADS7835EB/2K5, transition to ADS7835E/2K5 is the primary recommendation. This part maintains identical electrical specifications and packaging format while offering Last Time Buy status and ROHS3 compliance, providing extended procurement window and regulatory alignment.

ADS7835E/250 and ADS7835EB/250 are parametrically equivalent alternatives differentiated by packaging format. ADS7835E/250 is supplied in Tape & Reel format, suitable for high-volume automated assembly. ADS7835EB/250 is supplied in Cut Tape and Digi-Reel format, appropriate for mixed-volume production environments.

All three substitute parts are ROHS3 compliant, addressing environmental and regulatory requirements that the obsolete ADS7835EB/2K5 does not meet. Selection among substitutes should be based on procurement volume requirements and assembly process compatibility rather than electrical performance, as all parts are functionally identical.

Frequently Asked Questions (FAQ)

Q: Can ADS7835E/2K5 directly replace ADS7835EB/2K5 in existing designs?

A: Yes. Both parts are electrically and functionally identical across all specified parameters: 12-bit resolution, 500k SPS sampling rate, single-channel single-ended input, SPI interface, SAR architecture, 5V supply requirements, and -40°C to 85°C operating range. Pin configuration and package dimensions (8-TSSOP, 8-MSOP) are identical. No design modifications are required.

Q: What is the difference between ADS7835E/2K5, ADS7835E/250, and ADS7835EB/250?

A: All three parts are parametrically equivalent with identical electrical specifications. The differences are packaging format and inventory availability. ADS7835E/2K5 and ADS7835EB/2K5 are supplied in bulk format. ADS7835E/250 is supplied in Tape & Reel format. ADS7835EB/250 is supplied in Cut Tape and Digi-Reel format. Selection depends on assembly process requirements and order quantity.

Q: Why is RoHS compliance important for this substitution?

A: The original ADS7835EB/2K5 is RoHS non-compliant. All substitute parts (ADS7835E/2K5, ADS7835E/250, ADS7835EB/250) are ROHS3 compliant. For designs subject to environmental regulations or customer requirements mandating RoHS compliance, substitution to any of these parts is necessary.

Q: Are there any electrical performance differences between the substitute parts?

A: No. All substitute parts maintain identical electrical performance: 12-bit resolution, 500k SPS sampling rate, single-ended input, SPI interface, external and internal reference capability, and 5V supply operation. Performance differences do not exist among the substitutes.

Q: Which substitute part should be selected for new production?

A: ADS7835E/2K5 is recommended for designs requiring bulk packaging. For high-volume automated assembly, ADS7835E/250 (Tape & Reel) is appropriate. For mixed-volume production, ADS7835EB/250 (Cut Tape & Digi-Reel) provides flexibility. All three parts offer Last Time Buy status and ROHS3 compliance.

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