TLV0838IPWG4 Equivalent & Substitute Parts

Part Overview

The TLV0838IPWG4 is an 8-bit Analog to Digital Converter (ADC) manufactured by Texas Instruments, designed for data acquisition applications requiring multi-channel input processing. This device features a Successive Approximation Register (SAR) architecture with support for 4, 7, or 8 input channels, configurable for differential, pseudo-differential, or single-ended input modes via SPI interface.

The TLV0838IPWG4 is currently discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and maintenance applications.

Key Parameters

Parameter	Value
Resolution	8 Bit
Sampling Rate	37.9k Samples Per Second
Number of Input Channels	4, 7, 8
Input Configuration	Differential, Pseudo-Differential, Single Ended
Data Interface	SPI
Architecture	SAR (Successive Approximation Register)
Analog Supply Voltage	2.7V ~ 3.6V
Digital Supply Voltage	2.7V ~ 3.6V
Operating Temperature Range	-40°C ~ 85°C
Package Type	20-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the TLV0838IPWG4 are identified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Resolution & Architecture: 8-bit SAR ADC configuration
Sampling Rate: 37.9k samples per second
Input Channels: Support for 4, 7, or 8 configurable input channels
Input Types: Differential, pseudo-differential, and single-ended input capability
Data Interface: SPI communication protocol
Supply Voltage: 2.7V to 3.6V for both analog and digital supplies
Package: 20-TSSOP surface mount package with identical physical dimensions
Operating Temperature: -40°C to 85°C range
Compliance: ROHS3 compliance and MSL Level 1 rating

The TLV0838IPW meets all these criteria and is classified as a direct substitute. Both parts share the same base product number (TLV0838) and differ only in packaging format and product status.

Parameter Comparison

Parameter	TLV0838IPWG4 (Main Part)	TLV0838IPW (Substitute)
Manufacturer	Texas Instruments	Texas Instruments
Resolution	8 Bit	8 Bit
Sampling Rate	37.9k SPS	37.9k SPS
Input Channels	4, 7, 8	4, 7, 8
Input Type	Differential, Pseudo-Differential, Single Ended	Differential, Pseudo-Differential, Single Ended
Data Interface	SPI	SPI
Architecture	SAR	SAR
Analog Supply Voltage	2.7V ~ 3.6V	2.7V ~ 3.6V
Digital Supply Voltage	2.7V ~ 3.6V	2.7V ~ 3.6V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	20-TSSOP (0.173", 4.40mm Width)	20-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
Product Status	Discontinued at DiGi Electronics	Last Time Buy
Packaging Format	Tape and Reel	Tube

Engineering Selection Recommendations

The TLV0838IPW is a direct functional equivalent to the TLV0838IPWG4. Both devices are manufactured by Texas Instruments and share identical electrical specifications, pin configurations, and package dimensions. The primary difference is product status and packaging format.

For new designs or production continuation: The TLV0838IPW is recommended as the primary substitute. This part maintains Last Time Buy status, providing extended availability compared to the discontinued TLV0838IPWG4. Both parts maintain full ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard manufacturing and storage requirements.

Packaging consideration: The TLV0838IPW is supplied in tube packaging, whereas the original part was supplied in tape and reel format. Verify that your assembly process can accommodate tube packaging, or confirm availability of tape and reel conversion services if required.

Frequently Asked Questions (FAQ)

Q: Can the TLV0838IPW be used as a direct replacement for the TLV0838IPWG4?

A: Yes. Both parts are identical in electrical performance, pin configuration, and package dimensions. The only differences are product status and packaging format (tube versus tape and reel).

Q: What is the difference between the TLV0838IPWG4 and TLV0838IPW?

A: The TLV0838IPWG4 is discontinued at DiGi Electronics, while the TLV0838IPW maintains Last Time Buy status. The TLV0838IPW is supplied in tube packaging instead of tape and reel. All electrical and mechanical specifications are identical.

Q: Are there any compatibility concerns when switching from TLV0838IPWG4 to TLV0838IPW?

A: No electrical or functional compatibility concerns exist. Verify that your assembly equipment can process tube packaging if the original design specified tape and reel format.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the TLV0838IPWG4 and TLV0838IPW are ROHS3 compliant with MSL Level 1 rating. REACH status is unaffected for both parts.

Q: What is the supply voltage range for these ADC devices?

A: Both analog and digital supply voltages operate within the 2.7V to 3.6V range. This allows operation from standard 3.3V supply rails with appropriate margin.

Q: How many input channels does the TLV0838 support?

A: The device supports configurable input channel counts of 4, 7, or 8 channels. Input configuration is selectable as differential, pseudo-differential, or single-ended through SPI interface control.

Q: What is the sampling rate of the TLV0838 ADC?

A: The sampling rate is 37.9k samples per second, suitable for low to moderate frequency signal acquisition applications.

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