MAX4217ESA Equivalent & Substitute Parts

Part Overview

The MAX4217ESA is a dual-channel buffer and voltage feedback amplifier manufactured by Analog Devices Inc./Maxim Integrated, housed in an 8-SOIC surface mount package. This device features rail-to-rail output capability and is designed for linear amplification applications requiring dual-circuit configurations. The MAX4217ESA is classified as obsolete, necessitating identification of functionally equivalent active alternatives for new designs and ongoing production requirements. Substitute parts must maintain compatibility across electrical performance parameters, mechanical packaging, and operating conditions while meeting current RoHS and REACH compliance standards.

Key Parameters

Parameter	Value	Unit
Amplifier Type	Buffer, Voltage Feedback	—
Number of Circuits	2	Channels
Output Type	Rail-to-Rail	—
Slew Rate	600	V/µs
-3dB Bandwidth	230	MHz
Current - Input Bias	5.4	µA
Voltage - Input Offset	4	mV
Current - Supply (x2 Channels)	5.5	mA
Current - Output / Channel	120	mA
Voltage - Supply Span (Min)	3.15	V
Voltage - Supply Span (Max)	11	V
Operating Temperature	-40 to 85	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution eligibility for the MAX4217ESA is determined by strict adherence to the following criteria:

Primary Compatibility Requirements:

Dual-circuit (2-channel) configuration
Rail-to-rail output capability
8-SOIC surface mount package (0.154", 3.90mm width)
Operating temperature range: -40°C to 85°C minimum
Supply voltage span: minimum 3.15V to 11V overlap

Secondary Performance Parameters:

Slew rate ≥ 600 V/µs (for high-speed applications)
-3dB bandwidth ≥ 230 MHz (for signal fidelity)
Input bias current ≤ 5.4 µA (for input impedance considerations)
Output current per channel ≥ 120 mA (for load driving capability)

The substitute parts listed below satisfy the primary mechanical and functional requirements. Performance variations in secondary parameters reflect different amplifier topologies (CMOS vs. general-purpose vs. voltage feedback) and are documented in the parameter comparison table for engineering evaluation.

Parameter Comparison

Parameter	MAX4217ESA	MAX4217ESA+	ALD2706SAL	LMC6442IM/NOPB	OPA2743UA	TSH82IDT
Manufacturer	Analog Devices	Analog Devices	Advanced Linear Devices	National Semiconductor	Texas Instruments	STMicroelectronics
Product Status	Obsolete	Active	Active	Active	Active	Active
Amplifier Type	Buffer, Voltage Feedback	Buffer, Voltage Feedback	CMOS	General Purpose	CMOS	General Purpose
Number of Circuits	2	2	2	2	2	2
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Slew Rate (V/µs)	600	600	0.1	0.0041	10	118
-3dB Bandwidth (MHz)	230	230	—	—	—	100
Gain Bandwidth Product (kHz/MHz)	—	—	200 kHz	10.5 kHz	7 MHz	65 MHz
Current - Input Bias (pA/µA)	5.4 µA	5.4 µA	0.1 pA	0.005 pA	1 pA	6 µA
Voltage - Input Offset (mV)	4	4	10	1.5	1.5	0.8
Current - Supply (mA, x2 Channels)	5.5	5.5	0.05	0.0019	1.1	9.8
Current - Output / Channel (mA)	120	120	0.2	2.1	20	55
Voltage - Supply Span (Min - Max, V)	3.15 - 11	3.15 - 11	2 - 10	1.8 - 11	3.5 - 12	4.5 - 12
Operating Temperature (°C)	-40 to 85	-40 to 85	0 to 70	-40 to 85	-40 to 85	-40 to 85
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	—	ROHS3 Compliant	ROHS3 Compliant
Automotive Grade / AEC-Q100	—	—	—	—	—	Yes
Inventory (Pcs)	4300	2100	1081	2166	12900	339427

Engineering Selection Recommendations

MAX4217ESA+ (Direct Upgrade)

The MAX4217ESA+ is the primary recommended substitute. It is manufactured by the same supplier (Analog Devices Inc./Maxim Integrated) and maintains identical electrical specifications to the obsolete MAX4217ESA. The MAX4217ESA+ differs only in product status (active vs. obsolete) and RoHS compliance (ROHS3 compliant vs. non-compliant). This part provides a direct pin-compatible replacement with no circuit redesign required. Packaging is tube format. Inventory availability is 2100 units.

TSH82IDT (High-Performance Alternative)

The TSH82IDT from STMicroelectronics is recommended for applications requiring enhanced performance and automotive qualification. This general-purpose amplifier exceeds the MAX4217ESA in slew rate (118 V/µs vs. 600 V/µs specification), gain bandwidth product (65 MHz), and -3dB bandwidth (100 MHz). The TSH82IDT maintains full compatibility with the 8-SOIC package, -40°C to 85°C operating range, and rail-to-rail output. It carries AEC-Q100 automotive qualification and ROHS3 compliance. Supply voltage span (4.5–12V) overlaps the MAX4217ESA requirement. Output current per channel (55 mA) is lower than the original specification (120 mA). Inventory availability is 339,427 units.

OPA2743UA (CMOS Alternative)

The OPA2743UA from Texas Instruments is a CMOS dual-channel amplifier suitable for applications where ultra-low input bias current (1 pA) and low input offset voltage (1.5 mV) are advantageous. This part maintains the 8-SOIC package, -40°C to 85°C operating range, and rail-to-rail output. The OPA2743UA provides 10 V/µs slew rate and 7 MHz gain bandwidth product. Supply voltage span (3.5–12V) overlaps the MAX4217ESA. Output current per channel (20 mA) is significantly lower than the original specification (120 mA). ROHS3 compliant. Inventory availability is 12,900 units.

ALD2706SAL (Ultra-Low Power Alternative)

The ALD2706SAL from Advanced Linear Devices is a CMOS amplifier optimized for ultra-low power consumption (50 µA total supply current vs. 5.5 mA). This part is suitable for battery-powered or energy-constrained applications. It maintains the 8-SOIC package and rail-to-rail output. Operating temperature range is limited to 0°C to 70°C, which does not meet the full -40°C to 85°C specification of the MAX4217ESA. Supply voltage span (2–10V) overlaps the MAX4217ESA. Output current per channel (200 µA) is significantly lower. ROHS3 compliant. Inventory availability is 1,081 units.

LMC6442IM/NOPB (Micropower Alternative)

The LMC6442IM/NOPB from National Semiconductor is a general-purpose micropower amplifier with extremely low supply current (1.9 µA total). This part is intended for ultra-low-power applications. It maintains the 8-SOIC package, -40°C to 85°C operating range, and rail-to-rail output. Supply voltage span (1.8–11V) overlaps the MAX4217ESA. Slew rate (0.0041 V/µs) and gain bandwidth product (10.5 kHz) are significantly lower, making this part unsuitable for high-speed signal processing. Output current per channel (2.1 mA) is substantially lower. Inventory availability is 2,166 units.

Frequently Asked Questions (FAQ)

Q: Can MAX4217ESA+ be used as a direct replacement for MAX4217ESA?

A: Yes. The MAX4217ESA+ is electrically and mechanically identical to the MAX4217ESA. Both parts share the same base product number (MAX4217), identical pin configuration (8-SOIC), and identical electrical specifications including slew rate (600 V/µs), bandwidth (230 MHz), supply current (5.5 mA), and output current (120 mA per channel). The primary differences are product status (active vs. obsolete) and RoHS compliance (ROHS3 vs. non-compliant). No circuit modifications are required.

Q: What is the key difference between the substitute parts?

A: The substitute parts differ fundamentally in amplifier topology and performance characteristics. MAX4217ESA+ maintains the original voltage feedback buffer topology. TSH82IDT is a general-purpose amplifier with higher slew rate (118 V/µs) and automotive qualification. OPA2743UA and ALD2706SAL are CMOS amplifiers optimized for ultra-low input bias current and low power consumption. LMC6442IM/NOPB is a micropower amplifier for battery-powered applications. Selection depends on application requirements for speed, power consumption, and output current capability.

Q: Which substitute part has the highest output current capability?

A: The MAX4217ESA+ maintains the original 120 mA per channel output current specification. Among other alternatives, TSH82IDT provides 55 mA per channel, OPA2743UA provides 20 mA per channel, ALD2706SAL provides 200 µA per channel, and LMC6442IM/NOPB provides 2.1 mA per channel. For applications requiring 120 mA output current, MAX4217ESA+ is the only suitable substitute.

Q: Are all substitute parts RoHS compliant?

A: MAX4217ESA+ is ROHS3 compliant. TSH82IDT, OPA2743UA, and ALD2706SAL are ROHS3 compliant. LMC6442IM/NOPB compliance status is not specified in the provided data. The original MAX4217ESA is RoHS non-compliant. For applications requiring RoHS compliance, MAX4217ESA+, TSH82IDT, OPA2743UA, and ALD2706SAL are acceptable.

Q: Does TSH82IDT meet the full operating temperature range of MAX4217ESA?

A: Yes. TSH82IDT operates from -40°C to 85°C, matching the MAX4217ESA specification. ALD2706SAL operates only from 0°C to 70°C and does not meet the full temperature range. All other substitutes meet or exceed the -40°C to 85°C requirement.

Q: What is the supply voltage compatibility of each substitute?

A: MAX4217ESA+ requires 3.15–11V. TSH82IDT requires 4.5–12V (minimum supply is higher). OPA2743UA requires 3.5–12V (minimum supply is higher). ALD2706SAL requires 2–10V (maximum supply is lower). LMC6442IM/NOPB requires 1.8–11V (most flexible). For designs operating at 3.15V minimum supply, only MAX4217ESA+ and LMC6442IM/NOPB are fully compatible.

Q: Which substitute is recommended for automotive applications?

A: TSH82IDT carries AEC-Q100 automotive qualification and is the only substitute with explicit automotive grade designation. This part is suitable for automotive-grade designs requiring temperature cycling and reliability testing compliance.

Q: Can ALD2706SAL replace MAX4217ESA in all applications?

A: No. ALD2706SAL has three significant limitations: (1) operating temperature range is 0°C to 70°C, not -40°C to 85°C; (2) output current per channel is 200 µA, not 120 mA; (3) maximum supply voltage is 10V, not 11V. ALD2706SAL is suitable only for applications operating within 0–70°C, requiring minimal output current, and with supply voltage not exceeding 10V.

Q: Is LMC6442IM/NOPB suitable for high-speed signal processing?

A: No. LMC6442IM/NOPB has slew rate of 0.0041 V/µs and gain bandwidth product of 10.5 kHz, compared to MAX4217ESA specifications of 600 V/µs and 230 MHz bandwidth. This part is designed for ultra-low-power, low-frequency applications only. It is unsuitable for high-speed or wideband signal processing.

Q: What is the inventory status of each substitute?

A: MAX4217ESA+ has 2,100 units in stock. TSH82IDT has 339,427 units (highest availability). OPA2743UA has 12,900 units. ALD2706SAL has 1,081 units (lowest availability). LMC6442IM/NOPB has 2,166 units. For applications requiring immediate availability, TSH82IDT and OPA2743UA are preferred.

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