MAX4104ESA Equivalent & Substitute Parts

Part Overview

The MAX4104ESA is a voltage feedback amplifier integrated circuit manufactured by Analog Devices Inc./Maxim Integrated, housed in an 8-SOIC surface mount package. This device is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and production requirements. The MAX4104ESA delivers a slew rate of 400V/µs with a -3dB bandwidth of 625 MHz, operating across a supply voltage range of 7V to 11V with an input bias current of 32 µA.

Key Parameters

Parameter	Value
Manufacturer Part Number	MAX4104ESA
Manufacturer	Analog Devices Inc./Maxim Integrated
Category	Linear, Amplifiers
Amplifier Type	Voltage Feedback
Number of Circuits	1
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Slew Rate	400V/µs
-3dB Bandwidth	625 MHz
Current - Input Bias	32 µA
Voltage - Input Offset	1 mV
Current - Supply	20 mA
Current - Output / Channel	70 mA
Voltage - Supply Span (Min)	7 V
Voltage - Supply Span (Max)	11 V
Operating Temperature	-40°C ~ 85°C
Product Status	Obsolete
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MAX4104ESA is determined by the following critical parameters: package type (8-SOIC surface mount), amplifier topology (voltage feedback, single circuit), operating temperature range (-40°C to 85°C), and functional performance characteristics (slew rate, bandwidth, supply voltage compatibility, and output current capability).

The substitute parts are grouped into two categories:

Direct Equivalent: MAX4104ESA+ maintains identical electrical specifications and packaging, differing only in product status (Active vs. Obsolete) and RoHS compliance status.

Functional Substitutes: OPA842ID, THS4221D, and THS4271D are voltage feedback amplifiers in 8-SOIC packages with compatible operating temperature ranges. These devices provide alternative performance characteristics within the voltage feedback amplifier category, each with distinct slew rate, bandwidth, and supply voltage specifications.

Parameter Comparison

Parameter	MAX4104ESA	MAX4104ESA+	OPA842ID	THS4221D	THS4271D
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Texas Instruments	Texas Instruments	Texas Instruments
Product Status	Obsolete	Active	Active	Active	Active
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Amplifier Type	Voltage Feedback	Voltage Feedback	Voltage Feedback	Voltage Feedback	Voltage Feedback
Number of Circuits	1	1	1	1	1
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Slew Rate	400 V/µs	400 V/µs	400 V/µs	990 V/µs	1000 V/µs
-3dB Bandwidth	625 MHz	625 MHz	Not specified	230 MHz	1.4 GHz
Current - Input Bias	32 µA	32 µA	20 µA	900 nA	6 µA
Voltage - Input Offset	1 mV	1 mV	300 µV	3 mV	5 mV
Current - Supply	20 mA	20 mA	20.2 mA	14 mA	22 mA
Current - Output / Channel	70 mA	70 mA	100 mA	100 mA	160 mA
Voltage - Supply Span (Min)	7 V	7 V	10 V	2.7 V	5 V
Voltage - Supply Span (Max)	11 V	11 V	12 V	15 V	15 V
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	2 (1 Year)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

MAX4104ESA+ (Direct Equivalent): This part is the primary replacement for the obsolete MAX4104ESA. It maintains identical electrical specifications and 8-SOIC packaging. The MAX4104ESA+ is Active in product status and ROHS3 compliant, addressing regulatory requirements while preserving functional compatibility. This substitution requires no circuit redesign.

OPA842ID (Texas Instruments): This device operates within the supply voltage range of 10V to 12V, which overlaps with the MAX4104ESA specification (7V to 11V) at the upper boundary. The OPA842ID provides lower input bias current (20 µA vs. 32 µA) and superior input offset voltage (300 µV vs. 1 mV). Output current capability is increased to 100 mA. The OPA842ID is Active and ROHS3 compliant. Supply voltage compatibility requires verification for applications operating below 10V.

THS4221D (Texas Instruments): This device features rail-to-rail output capability and operates across a wider supply voltage range (2.7V to 15V), encompassing the MAX4104ESA specification. The THS4221D exhibits significantly lower input bias current (900 nA) and higher slew rate (990 V/µs). The -3dB bandwidth is reduced to 230 MHz compared to the MAX4104ESA (625 MHz). Current supply is lower at 14 mA. The THS4221D is Active and ROHS3 compliant with MSL 1 rating.

THS4271D (Texas Instruments): This device provides the highest performance specifications among substitutes, with slew rate of 1000 V/µs and -3dB bandwidth of 1.4 GHz. Supply voltage range is 5V to 15V, compatible with the MAX4104ESA upper specification. Input bias current is 6 µA and output current reaches 160 mA. The THS4271D is Active and ROHS3 compliant. This device is suitable for applications requiring enhanced bandwidth and slew rate performance.

All substitute parts maintain the 8-SOIC surface mount package, single-circuit voltage feedback amplifier topology, and -40°C to 85°C operating temperature range of the original MAX4104ESA.

Frequently Asked Questions (FAQ)

Q: Can MAX4104ESA+ be used as a direct replacement for MAX4104ESA?

A: Yes. The MAX4104ESA+ is electrically identical to the MAX4104ESA, with identical slew rate (400 V/µs), bandwidth (625 MHz), supply voltage range (7V to 11V), and all other electrical specifications. The primary differences are product status (Active vs. Obsolete) and RoHS compliance (ROHS3 vs. non-compliant). No circuit modifications are required.

**Q: What are the key differences between MAX4104ESA and THS4271

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