MAX4233AUB-T Equivalent & Substitute Parts

Part Overview

The MAX4233AUB-T is a CMOS dual-channel operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, designed for rail-to-rail signal conditioning applications. This device features a 10-uMAX/uSOP surface mount package and operates across a 2.7V to 5.5V supply range with a -40°C to 125°C temperature span. The part is currently classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value	Unit
Amplifier Type	CMOS	—
Number of Circuits	2	Channels
Output Type	Rail-to-Rail	—
Slew Rate	10	V/µs
Gain Bandwidth Product	10	MHz
Current - Input Bias	1	pA
Voltage - Input Offset	850	µV
Current - Supply (per Channel)	1.2	mA
Current - Output / Channel	200	mA
Voltage - Supply Span (Min)	2.7	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature	-40 to 125	°C
Mounting Type	Surface Mount	—
Package / Case	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the MAX4233AUB-T is determined by strict alignment across the following critical parameters:

Primary Substitution Criteria:

Amplifier Type: CMOS
Number of Circuits: 2 channels
Output Type: Rail-to-Rail
Supply Voltage Range: 2.7V to 5.5V minimum
Operating Temperature Range: -40°C to 125°C minimum
Mounting Type: Surface Mount
Package Compatibility: 10-pin TFSOP/MSOP footprint

Secondary Compatibility Parameters:

Slew Rate: 10V/µs or greater
Gain Bandwidth Product: 10 MHz or greater
Input Bias Current: 1 pA or lower
Input Offset Voltage: 850 µV or lower
Supply Current: 1.2 mA per channel or lower
Output Current: 200 mA per channel or greater

Substitute parts must satisfy all primary criteria. Secondary parameters define performance equivalence; deviations indicate functional trade-offs that must be evaluated within specific application contexts.

Parameter Comparison

Parameter	MAX4233AUB-T (Main)	MAX4233AUB+T	TLV2623IDGS	TLV2623IDGSR
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Texas Instruments	Texas Instruments
Product Status	Obsolete	Active	Last Time Buy	Last Time Buy
Amplifier Type	CMOS	CMOS	CMOS	CMOS
Number of Circuits	2	2	2	2
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Slew Rate (V/µs)	10	10	7	7
Gain Bandwidth Product (MHz)	10	10	11	11
Current - Input Bias (pA)	1	1	2	2
Voltage - Input Offset (µV)	850	850	250	250
Current - Supply per Channel (mA)	1.2	1.2	0.8	0.8
Current - Output / Channel (mA)	200	200	28	28
Voltage - Supply Span (Min - Max)	2.7 - 5.5	2.7 - 5.5	2.7 - 5.5	2.7 - 5.5
Operating Temperature (°C)	-40 to 125	-40 to 125	-40 to 125	-40 to 125
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	10-TFSOP, 10-MSOP	10-TFSOP, 10-MSOP	10-TFSOP, 10-MSOP	10-TFSOP, 10-MSOP
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

MAX4233AUB+T (Direct Manufacturer Equivalent)

The MAX4233AUB+T is the primary substitute for the obsolete MAX4233AUB-T. This part is manufactured by the same supplier (Analog Devices Inc./Maxim Integrated) and maintains identical electrical specifications across all measured parameters. The only distinction is product status: MAX4233AUB+T is classified as Active, ensuring long-term availability and supply chain continuity. The packaging format differs (Cut Tape & Digi-Reel® versus original packaging), but the component itself is electrically and mechanically identical. This part is recommended as the first-choice replacement for direct substitution in existing designs.

TLV2623IDGS and TLV2623IDGSR (Cross-Manufacturer Alternatives)

The TLV2623 series from Texas Instruments satisfies all primary substitution criteria and operates within the same supply voltage and temperature ranges. Both variants (tube packaging for TLV2623IDGS and tape & reel for TLV2623IDGSR) are functionally equivalent. These parts exhibit performance trade-offs relative to the MAX4233AUB-T:

Slew Rate reduced from 10V/µs to 7V/µs
Input Bias Current increased from 1 pA to 2 pA
Input Offset Voltage improved from 850 µV to 250 µV
Supply Current reduced from 1.2 mA to 0.8 mA per channel
Output Current reduced from 200 mA to 28 mA per channel

Both TLV2623 variants are classified as Last Time Buy, indicating limited future availability. Selection between TLV2623IDGS and TLV2623IDGSR depends on procurement packaging requirements (tube versus tape & reel).

Compliance and Certification Status

All substitute parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity ratings, ensuring compatibility with standard manufacturing and storage protocols. The MAX4233AUB+T carries REACH Unaffected status; TLV2623 variants carry REACH Unaffected status. All parts are classified under ECCN EAR99 and HTSUS 8542.33.0001.

Frequently Asked Questions (FAQ)

Q: Can the MAX4233AUB+T be used as a direct replacement for the MAX4233AUB-T?

A: Yes. The MAX4233AUB+T is electrically and mechanically identical to the MAX4233AUB-T. The only difference is product status (Active versus Obsolete) and packaging format. No circuit modifications are required.

Q: What are the key performance differences between the MAX4233AUB-T and TLV2623 series?

A: The TLV2623 series maintains equivalent supply voltage range, temperature range, and dual-channel rail-to-rail output configuration. However, slew rate is reduced from 10V/µs to 7V/µs, and output current capability is reduced from 200 mA to 28 mA per channel. Input offset voltage is improved (250 µV versus 850 µV), and supply current is lower (0.8 mA versus 1.2 mA per channel).

Q: Are the TLV2623IDGS and TLV2623IDGSR electrically identical?

A: Yes. Both variants are electrically identical. The difference is packaging format: TLV2623IDGS is supplied in tube packaging, while TLV2623IDGSR is supplied in tape & reel format. Selection depends on procurement and assembly requirements.

Q: What is the significance of "Last Time Buy" status for the TLV2623 series?

A: Last Time Buy status indicates that Texas Instruments has announced end-of-life for these parts. Existing inventory is available for purchase, but no new production is planned. For long-term design support, the MAX4233AUB+T (Active status) is the preferred choice.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All parts use 10-pin TFSOP/MSOP packages with 0.118" (3.00mm) width, ensuring mechanical and electrical compatibility with existing PCB layouts designed for the MAX4233AUB-T.

Q: Do the substitute parts meet the same environmental and compliance standards?

A: Yes. All substitute parts are ROHS3 compliant, carry MSL Level 1 (Unlimited) moisture sensitivity ratings, and are classified under the same ECCN and HTSUS codes as the original part.

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

A: The MAX4233AUB+T is recommended for new designs due to its Active product status, ensuring long-term availability and supply chain stability. The TLV2623 series is suitable only if the reduced slew rate (7V/µs) and output current (28 mA) meet application requirements and if procurement of Last Time Buy inventory is feasible.

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