MAX4244ESD+ Equivalent & Substitute Parts

Part Overview

The MAX4244ESD+ is a general-purpose operational amplifier featuring four circuits in a 14-SOIC surface-mount package, manufactured by Analog Devices Inc./Maxim Integrated. This device operates with rail-to-rail output capability across a supply voltage range of 1.8 V to 5.5 V and is designed for low-power applications with a supply current of 14 µA across all four channels.

The MAX4244ESD+ is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production requirements. Substitute parts must maintain compatibility with the original electrical specifications and mechanical packaging while offering active product status or extended availability.

Key Parameters

Parameter	Value	Unit
Number of Circuits	4	—
Output Type	Rail-to-Rail	—
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
Voltage - Supply Span (Min)	1.8	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature	-40 to 85	°C
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the MAX4244ESD+ is determined by the following mandatory criteria:

Primary Compatibility Requirements:

Four operational amplifier circuits in a single package
Rail-to-rail output configuration
14-SOIC surface-mount package (0.154", 3.90mm width)
Supply voltage range compatibility: minimum 1.8 V, maximum 5.5 V
ROHS3 compliance and MSL 1 rating

Secondary Electrical Parameters: Substitute parts must operate within the specified supply voltage window. Variations in slew rate, gain bandwidth product, input bias current, and output current per channel are acceptable provided the substitute part meets the primary mechanical and electrical envelope requirements.

Grouping Logic: Substitute parts are grouped into two functional categories:

General-Purpose Amplifiers (LMV324ID, LMV324QD, MCP6424T-E/SL, TLV2454ID, TLV2454IDR, TLV2454CD): These devices maintain the general-purpose amplifier classification and are suitable for direct replacement in applications where the original performance envelope is acceptable.
Zero-Drift Amplifiers (OPA4317ID, OPA4317IDR): These devices offer enhanced input offset voltage performance (20 µV versus 200 µV) and extended operating temperature range (-40°C to 150°C), providing superior precision characteristics while maintaining package and circuit count compatibility.

Parameter Comparison

Parameter	MAX4244ESD+	LMV324ID	LMV324QD	MCP6424T-E/SL	OPA4317ID	OPA4317IDR	TLV2454ID	TLV2454IDR	TLV2454CD
Manufacturer	Analog Devices	Texas Instruments	Texas Instruments	Microchip	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Number of Circuits	4	4	4	4	4	4	4	4	4
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC
Voltage - Supply Span (Min)	1.8 V	2.7 V	2.7 V	1.8 V	1.8 V	1.8 V	2.7 V	2.7 V	2.7 V
Voltage - Supply Span (Max)	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	6 V	6 V	6 V
Slew Rate (V/µs)	0.04	1	1	0.05	0.15	0.15	0.11	0.11	0.11
Gain Bandwidth Product (kHz)	90	1000	1000	90	300	300	220	220	220
Current - Input Bias	2 nA	15 nA	15 nA	1 pA	155 pA	155 pA	500 pA	500 pA	500 pA
Voltage - Input Offset	200 µV	1.7 mV	1.7 mV	1 mV	20 µV	20 µV	300 µV	300 µV	300 µV
Current - Supply (µA)	14	410	410	4.4	21	21	23	23	23
Current - Output / Channel (mA)	2.5	40	40	22	5	5	10	10	10
Operating Temperature (°C)	-40 to 85	-40 to 125	-40 to 125	-40 to 125	-40 to 150	-40 to 150	-40 to 125	-40 to 125	0 to 70
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Last Time Buy	Last Time Buy	Active	Active	Active	Active	Active	Obsolete
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Active Product Status and Extended Availability:

The following substitute parts are classified as active products with ongoing manufacturer support:

MCP6424T-E/SL (Microchip Technology): Active status with the lowest supply current (4.4 µA) among general-purpose alternatives, matching the original 90 kHz gain bandwidth product. Suitable for power-constrained applications.
OPA4317ID and OPA4317IDR (Texas Instruments): Active status zero-drift amplifiers offering superior input offset voltage performance (20 µV) and extended operating temperature range to 150°C. Recommended for precision measurement applications requiring enhanced accuracy.
TLV2454ID and TLV2454IDR (Texas Instruments): Active status general-purpose amplifiers with moderate performance characteristics. TLV2454IDR offers the highest inventory availability (12,700 pcs) in tape and reel packaging.

For Last Time Buy Consideration:

LMV324ID and LMV324QD (Texas Instruments): Last time buy status with higher supply current (410 µA) and elevated input bias current (15 nA). These parts offer 1 MHz gain bandwidth product and 40 mA output current per channel, suitable for applications requiring higher performance than the original device.

Obsolete Status Parts:

TLV2454CD: Obsolete status with restricted operating temperature range (0°C to 70°C). Not recommended for new designs or applications requiring extended temperature operation.

Frequently Asked Questions (FAQ)

Q1: Can MCP6424T-E/SL directly replace MAX4244ESD+ in existing designs?

A: MCP6424T-E/SL is mechanically and electrically compatible. Both devices feature four circuits in 14-SOIC packaging with rail-to-rail output and 1.8 V to 5.5 V supply range. The MCP6424T-E/SL offers lower supply current (4.4 µA versus 14 µA) and improved input bias current (1 pA versus 2 nA). No circuit modifications are required for direct substitution.

Q2: What is the difference between general-purpose and zero-drift amplifier substitutes?

A: General-purpose amplifiers (LMV324, MCP6424, TLV2454 series) provide standard operational amplifier performance suitable for general signal conditioning. Zero-drift amplifiers (OPA4317 series) employ internal offset correction techniques to achieve significantly lower input offset voltage (20 µV versus 200–1700 µV), making them suitable for precision instrumentation and measurement applications where offset drift over temperature is critical.

Q3: Why do some substitutes have higher supply current than the original MAX4244ESD+?

A: Supply current variation reflects different circuit topologies and performance characteristics. LMV324 devices consume 410 µA due to higher gain bandwidth product (1 MHz) and output current capability (40 mA per channel). MCP6424T-E/SL maintains similar performance to the original (90 kHz bandwidth) with lower supply current (4.4 µA). Selection depends on application power budget and performance requirements.

Q4: Are all substitute parts ROHS3 compliant and MSL 1 rated?

A: All listed substitute parts are ROHS3 compliant and carry MSL 1 (unlimited moisture sensitivity level) rating, matching the original MAX4244ESD+ environmental and regulatory compliance profile.

Q5: What packaging options are available for substitute parts?

A: Substitute parts are available in multiple packaging formats: tube packaging (LMV324ID, LMV324QD, TLV2454ID, OPA4317ID), tape and reel (MCP6424T-E/SL, TLV2454IDR, OPA4317IDR), and cut tape with digi-reel options. Selection depends on production volume and assembly requirements.

Q6: Which substitute offers the best long-term availability?

A: MCP6424T-E/SL carries active product status with ongoing manufacturer support. TLV2454IDR offers the highest current inventory (12,700 pcs) in tape and reel format. OPA4317ID and OPA4317IDR are active products with extended operating temperature range to 150°C, supporting long-term design continuity.

Q7: Can TLV2454CD be used as a substitute?

A: TLV2454CD is not recommended. Although mechanically compatible, it carries obsolete product status and operates only within 0°C to 70°C temperature range, restricting use in applications requiring the original -40°C to 85°C specification.

Q8: What are the key electrical differences between OPA4317IDR and MCP6424T-E/SL?

A: OPA4317IDR is a zero-drift amplifier with 20 µV input offset voltage, 300 kHz bandwidth, and 155 pA input bias current, optimized for precision applications. MCP6424T-E/SL is a general-purpose amplifier with 1 mV input offset voltage, 90 kHz bandwidth, and 1 pA input bias current, optimized for low-power operation. Both maintain 14-SOIC packaging and 1.8 V to 5.5 V supply range compatibility.

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