ADA4665-2ARMZ-RL Equivalent & Substitute Parts

Part Overview

The ADA4665-2ARMZ-RL is a CMOS dual-channel operational amplifier manufactured by Analog Devices Inc., housed in an 8-MSOP surface mount package. This linear amplifier features rail-to-rail output capability and is designed for general-purpose signal conditioning and amplification applications. The device is currently in active production status with 870 units in stock. Equivalent and substitute parts are identified based on matching electrical performance parameters, package compatibility, and functional equivalence to support design flexibility and supply chain continuity.

Key Parameters

Parameter	Value	Unit
Amplifier Type	CMOS	—
Number of Circuits	2	—
Output Type	Rail-to-Rail	—
Slew Rate	1	V/µs
Gain Bandwidth Product	1.2	MHz
Current - Input Bias	0.1	pA
Voltage - Input Offset	1	mV
Current - Supply (x2 Channels)	290	µA
Current - Output / Channel	30	mA
Voltage - Supply Span (Min)	5	V
Voltage - Supply Span (Max)	16	V
Operating Temperature	-40 to 125	°C
Mounting Type	Surface Mount	—
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the ADA4665-2ARMZ-RL is determined by the following critical parameters:

Primary Matching Criteria:

Dual-channel configuration (2 circuits)
Rail-to-rail output capability
CMOS amplifier topology
Surface mount package (8-MSOP or 8-VSSOP)
Operating temperature range compatibility
Supply voltage span overlap (minimum 5V to 16V range)

Secondary Compatibility Factors:

Slew rate performance (1 V/µs or greater)
Gain bandwidth product (1 MHz or greater)
Input bias current (low leakage, ≤1 pA)
Input offset voltage (≤1 mV)
Output current capability (≥14 mA per channel)
Supply current consumption
RoHS3 compliance and MSL rating

Substitute parts are grouped into two categories: direct CMOS amplifier equivalents (BD7562 series, TLV272CM8-13) and general-purpose operational amplifiers with compatible electrical specifications (TLV2402 series). The TLV2402 series exhibits lower slew rate and gain bandwidth product but maintains functional compatibility within the specified supply and temperature ranges.

Parameter Comparison

Parameter	ADA4665-2ARMZ-RL	BD7562FVM-TR	BD7562SFVM-TR	TLV2402CDGK	TLV2402IDGK	TLV2402IDGKR	TLV2402QDGKRQ1	TLV272CM8-13
Manufacturer	Analog Devices Inc.	Rohm Semiconductor	Rohm Semiconductor	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Diodes Incorporated
Amplifier Type	CMOS	CMOS	CMOS	General Purpose	General Purpose	General Purpose	General Purpose	CMOS
Number of Circuits	2	2	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	Rail-to-Rail	Rail-to-Rail
Slew Rate (V/µs)	1	1	1	0.0025	0.0025	0.0025	0.0025	2
Gain Bandwidth Product (MHz)	1.2	1	1	0.0055	0.0055	0.0055	0.0055	1.9
Current - Input Bias (pA)	0.1	1	1	100	100	100	100	1
Voltage - Input Offset (mV)	1	1	1	0.39	0.39	0.39	0.39	0.5
Current - Supply (µA)	290	900	900	0.9	0.9	0.9	0.9	550
Current - Output / Channel (mA)	30	14	14	0.2	0.2	0.2	0.2	8
Voltage - Supply Span Min (V)	5	5	5	2.5	2.5	2.5	2.5	2.7
Voltage - Supply Span Max (V)	16	14.5	14.5	16	16	16	16	16
Operating Temperature (°C)	-40 to 125	-40 to 85	-40 to 105	0 to 70	-40 to 125	-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
Package / Case	8-TSSOP, 8-MSOP	8-VSSOP, 8-MSOP	8-VSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP
RoHS Status	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)	2 (1 Year)	1 (Unlimited)

Engineering Selection Recommendations

Direct CMOS Equivalents (Preferred Category):

The BD7562FVM-TR and BD7562SFVM-TR from Rohm Semiconductor are CMOS dual-channel amplifiers with matching topology and rail-to-rail output. Both devices maintain 1 V/µs slew rate and 1 MHz gain bandwidth product, providing functional equivalence to the ADA4665-2ARMZ-RL. The BD7562SFVM-TR extends the operating temperature range to -40°C to 105°C, compared to BD7562FVM-TR at -40°C to 85°C. Both are ROHS3 compliant with MSL 1 rating. The maximum supply voltage is 14.5V, which is within the ADA4665-2ARMZ-RL operating range. Output current per channel is 14 mA, lower than the 30 mA specification of the main part.

The TLV272CM8-13 from Diodes Incorporated is a CMOS dual-channel amplifier with superior slew rate (2 V/µs) and gain bandwidth product (1.9 MHz). Supply voltage range is 2.7V to 16V, and operating temperature is 0°C to 70°C. This device is ROHS3 compliant with MSL 1 rating. Output current per channel is 8 mA. Supply current consumption is 550 µA, higher than the ADA4665-2ARMZ-RL at 290 µA.

General-Purpose Operational Amplifier Alternatives (Secondary Category):

The TLV2402 series from Texas Instruments (CDGK, IDGK, IDGKR, QDGKRQ1) comprises general-purpose dual-channel amplifiers with rail-to-rail output and 2.5V to 16V supply range. All variants are ROHS3 compliant. The QDGKRQ1 variant includes automotive-grade qualification (AEC-Q100) with MSL 2 rating. Operating temperature coverage varies: CDGK at 0°C to 70°C, IDGK and IDGKR at -40°C to 125°C, and QDGKRQ1 at -40°C to 125°C. These devices exhibit significantly lower slew rate (0.0025 V/µs) and gain bandwidth product (5.5 kHz), with reduced output current per channel (0.2 mA) and ultra-low supply current (0.9 µA). These characteristics limit their suitability to low-frequency, low-power applications.

Selection Criteria:

For applications requiring matched slew rate and bandwidth performance, select BD7562SFVM-TR or BD7562FVM-TR. For applications requiring extended temperature range beyond 105°C, the ADA4665-2ARMZ-RL remains the only option. For low-frequency applications with relaxed bandwidth requirements, TLV2402 variants are acceptable. For automotive applications, TLV2402QDGKRQ1 provides AEC-Q100 qualification. All substitute parts maintain ROHS3 compliance and are available in compatible surface mount packages.

Frequently Asked Questions (FAQ)

Q: Can the BD7562 series directly replace the ADA4665-2ARMZ-RL in all applications?

A: The BD7562FVM-TR and BD7562SFVM-TR are functionally equivalent for applications operating within their specified temperature ranges (-40°C to 85°C and -40°C to 105°C, respectively) and maximum supply voltage of 14.5V. Both maintain the same slew rate (1 V/µs) and similar gain bandwidth product (1 MHz). However, output current per channel is reduced to 14 mA compared to 30 mA on the ADA4665-2ARMZ-RL. Applications requiring the full 30 mA output current must retain the original part.

Q: What are the key differences between CMOS and general-purpose amplifier substitutes?

A: CMOS amplifiers (BD7562 series, TLV272CM8-13) maintain the same topology and performance characteristics as the ADA4665-2ARMZ-RL, including slew rate and bandwidth. General-purpose amplifiers (TLV2402 series) are optimized for ultra-low power consumption and extended supply voltage range but exhibit significantly reduced slew rate (0.0025 V/µs versus 1 V/µs) and gain bandwidth product (5.5 kHz versus 1.2 MHz). General-purpose variants are suitable only for low-frequency signal conditioning applications.

Q: Are all substitute parts compatible with the 8-MSOP package footprint?

A: All substitute parts are available in 8-MSOP or 8-VSSOP packages with compatible pinouts and surface mount footprints. The 8-MSOP package width is 3.00mm for the ADA4665-2ARMZ-RL and TLV2402 series, while the BD7562 series uses 8-VSSOP with 2.80mm width. Physical package dimensions differ slightly; verify PCB layout compatibility before substitution.

Q: Which substitute part offers the best performance match for high-frequency applications?

A: The TLV272CM8-13 provides the highest slew rate (2 V/µs) and gain bandwidth product (1.9 MHz) among all substitutes, exceeding the ADA4665-2ARMZ-RL specifications. However, output current per channel is limited to 8 mA. For applications requiring both high bandwidth and high output current, the ADA4665-2ARMZ-RL remains the optimal choice.

Q: What is the impact of supply current differences on system design?

A: The ADA4665-2ARMZ-RL draws 290 µA per dual-channel pair. The BD7562 series draws 900 µA, representing a 3.1× increase in quiescent current. The TLV2402 series draws only 0.9 µA, providing ultra-low power operation. The TLV272CM8-13 draws 550 µA. Supply current selection depends on power budget constraints and application duty cycle.

Q: Can TLV2402 variants be used in applications originally designed for the ADA4665-2ARMZ-RL?

A: TLV2402 variants are functionally compatible only in applications where slew rate and bandwidth requirements are relaxed. The 0.0025 V/µs slew rate and 5.5 kHz gain bandwidth product are suitable for DC and low-frequency signal conditioning, sensor interfaces, and precision measurement circuits. Applications requiring signal frequencies above 10 kHz or fast transient response must use CMOS amplifiers (ADA4665-2ARMZ-RL, BD7562 series, or TLV272CM8-13).

Q: What is the significance of the AEC-Q100 qualification on the TLV2402QDGKRQ1?

A: AEC-Q100 qualification indicates the device meets automotive industry reliability and quality standards. The TLV2402QDGKRQ1 is suitable for automotive applications requiring extended temperature range (-40°C to 125°C) and enhanced reliability testing. This variant carries MSL 2 rating (1-year moisture sensitivity limit) compared to MSL 1 on other parts. Non-automotive applications do not require this qualification.

Q: Are there supply voltage compatibility issues when substituting parts?

A: The ADA4665-2ARMZ-RL operates from 5V to 16V. The BD7562 series operates from 5V to 14.5V, limiting maximum supply voltage by 1.5V. The TLV2402 and TLV272CM8-13 series operate from 2.5V to 16V and 2.7V to 16V, respectively, providing extended low-voltage capability. Verify that system supply voltage falls within the substitute part's specified range before selection.

Q: What inventory considerations apply to substitute part selection?

A: Current inventory levels are: ADA4665-2ARMZ-RL (870 units), BD7562FVM-TR (4,183 units), BD7562SFVM-TR (3,400 units), TLV2402CDGK (1,758 units), TLV2402IDGK (1,900 units), TLV2402IDGKR (4,600 units), TLV2402QDGKRQ1 (9,400 units), and TLV272CM8-13 (17,296 units). Higher inventory availability on TLV2402 and TLV272 variants may support supply chain continuity for high-volume production.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message