AD8048ARZ Equivalent & Substitute Parts

Part Overview

The AD8048ARZ is a voltage feedback amplifier manufactured by Analog Devices Inc., designed for high-speed signal conditioning applications. This single-circuit operational amplifier operates in the 8-SOIC surface mount package and delivers a slew rate of 1000V/µs with a -3dB bandwidth of 260 MHz. The device is currently in Active product status with 4632 units in stock.

Equivalent and substitute parts are necessary when the primary component becomes unavailable, when design requirements demand alternative performance characteristics, or when supply chain constraints necessitate alternative sourcing from qualified manufacturers. Substitute parts must maintain compatibility across critical electrical parameters including supply voltage range, operating temperature, package type, and circuit topology.

Key Parameters

Parameter	Value	Unit
Amplifier Type	Voltage Feedback	-
Number of Circuits	1	-
Slew Rate	1000	V/µs
-3dB Bandwidth	260	MHz
Current - Input Bias	1	µA
Voltage - Input Offset	1	mV
Current - Supply	5.9	mA
Current - Output / Channel	50	mA
Voltage - Supply Span (Min)	6	V
Voltage - Supply Span (Max)	12	V
Operating Temperature	-40 to 85	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	-
Mounting Type	Surface Mount	-
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution compatibility for the AD8048ARZ is determined by the following critical parameters:

Primary Compatibility Criteria:

Amplifier Type: Voltage Feedback topology
Number of Circuits: Single circuit configuration
Package Type: 8-SOIC surface mount
Supply Voltage Range: Minimum 6V to maximum 12V overlap
Operating Temperature Range: -40°C to 85°C minimum coverage
RoHS3 Compliance and REACH Unaffected status

Performance Consideration Parameters:

Slew Rate: 1000V/µs baseline
-3dB Bandwidth: 260 MHz baseline
Input Bias Current: 1 µA baseline
Input Offset Voltage: 1 mV baseline
Output Current: 50 mA per channel baseline

Substitute parts are grouped into two categories:

Category A - Direct Voltage Feedback Substitutes (8-SOIC, Single Circuit): Parts that maintain voltage feedback topology, single-circuit configuration, and 8-SOIC packaging with compatible supply voltage ranges. These include LMH6609MA/NOPB, OPA656U, OPA656UB, OPA656U/2K5, and OPA656UB/2K5.

Category B - Alternative Topology Substitutes: Parts that differ in amplifier topology or circuit count but share the 8-SOIC package and compatible operating parameters. This includes OPA2674ID (current feedback, dual circuit) and TL074BCD (J-FET topology, quad circuit, 14-SOIC package).

Parameter Comparison

Parameter	AD8048ARZ	LMH6609MA/NOPB	OPA2674ID	OPA656U	OPA656UB	TL074BCD
Manufacturer	Analog Devices	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Amplifier Type	Voltage Feedback	Voltage Feedback	Current Feedback	Voltage Feedback	Voltage Feedback	J-FET
Number of Circuits	1	1	2	1	1	4
Slew Rate (V/µs)	1000	1400	2000	295	295	13
-3dB Bandwidth (MHz)	260	900	260	500	500	5.25
Current - Input Bias	1 µA	2 µA	10 µA	2 pA	1 pA	65 pA
Voltage - Input Offset	1 mV	800 µV	1 mV	250 µV	250 µV	2 mV
Current - Supply	5.9 mA	7 mA	18 mA (x2)	14 mA	14 mA	1.4 mA (x4)
Current - Output / Channel	50 mA	90 mA	500 mA	70 mA	70 mA	-
Voltage - Supply Span (Min)	6 V	6 V	5 V	8 V	8 V	10 V
Voltage - Supply Span (Max)	12 V	12 V	12 V	12 V	12 V	30 V
Operating Temperature	-40 to 85°C	-40 to 85°C	-40 to 85°C	-40 to 85°C	-40 to 85°C	0 to 70°C
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	14-SOIC
Product Status	Active	Active	Active	Last Time Buy	Last Time Buy	Obsolete
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	2 (1 Year)	3 (168 Hours)	3 (168 Hours)	1 (Unlimited)

Engineering Selection Recommendations

Primary Substitute - LMH6609MA/NOPB: The LMH6609MA/NOPB from Texas Instruments is the most direct substitute for the AD8048ARZ. Both devices maintain voltage feedback topology, single-circuit configuration, 8-SOIC packaging, and identical supply voltage range (6V to 12V). The LMH6609MA/NOPB operates across the same temperature range (-40°C to 85°C) and carries ROHS3 compliance with MSL 1 rating. The device is in Active product status with 914 units in stock. Performance characteristics exceed the AD8048ARZ baseline with higher slew rate (1400V/µs versus 1000V/µs) and wider bandwidth (900 MHz versus 260 MHz), making it suitable for applications requiring enhanced speed performance.

Secondary Substitutes - OPA656 Series (OPA656U, OPA656UB, OPA656U/2K5, OPA656UB/2K5): The OPA656 family devices maintain voltage feedback topology and 8-SOIC packaging with compatible supply voltage range (8V to 12V minimum, 12V maximum). These parts are suitable for applications where the minimum supply voltage requirement of 8V is acceptable. OPA656U and OPA656UB are in Last Time Buy status, indicating limited future availability. OPA656U/2K5 and OPA656UB/2K5 are in Active status with higher inventory levels (65,980 and 3,200 units respectively). All OPA656 variants carry ROHS3 compliance. Moisture sensitivity levels are MSL 3 (168 Hours), requiring controlled storage conditions compared to the AD8048ARZ MSL 1 rating.

Alternative Topology Substitute - OPA2674ID: The OPA2674ID is a current feedback amplifier with dual-circuit configuration in 8-SOIC packaging. This device is suitable only for applications where current feedback topology is acceptable and dual-circuit functionality can be utilized. The OPA2674ID operates across a wider supply voltage range (5V to 12V) and delivers higher output current (500 mA per channel versus 50 mA). Product status is Active with 2,248 units in stock. MSL rating is 2 (1 Year), requiring standard moisture control.

Not Recommended - TL074BCD: The TL074BCD is a quad J-FET amplifier in 14-SOIC packaging with obsolete product status. This device differs fundamentally in topology (J-FET versus voltage feedback), circuit count (4 versus 1), and package type (14-SOIC versus 8-SOIC). Operating temperature range is limited to 0°C to 70°C, which does not cover the full -40°C to 85°C range of the AD8048ARZ. Slew rate (13V/µs) and bandwidth (5.25 MHz) are significantly lower. This part is not suitable as a substitute.

Frequently Asked Questions (FAQ)

Q: Can the LMH6609MA/NOPB directly replace the AD8048ARZ in existing designs?

A: Yes, the LMH6609MA/NOPB is a direct pin-compatible substitute in 8-SOIC packaging. Both devices share identical supply voltage requirements (6V to 12V), operating temperature range (-40°C to 85°C), and single-circuit voltage feedback topology. The LMH6609MA/NOPB delivers superior performance with higher slew rate and bandwidth. PCB layout modifications are not required for substitution.

Q: What is the key difference between the OPA656 variants?

A: The OPA656 family includes four variants: OPA656U, OPA656UB, OPA656U/2K5, and OPA656UB/2K5. The primary differences are product status (OPA656U and OPA656UB are Last Time Buy; OPA656U/2K5 and OPA656UB/2K5 are Active) and input bias current specifications (OPA656U and OPA656UB differ by 1 pA). All variants share identical electrical performance parameters including slew rate (295V/µs), bandwidth (500 MHz), and supply voltage range (8V to 12V). The "/2K5" designation indicates tape-and-reel packaging format.

Q: Why is the OPA656 series not recommended as a primary substitute?

A: While the OPA656 series maintains voltage feedback topology and 8-SOIC packaging, the minimum supply voltage requirement of 8V is higher than the AD8048ARZ requirement of 6V. This restricts application flexibility in designs operating at lower supply voltages. Additionally, OPA656U and OPA656UB are in Last Time Buy status, indicating limited future availability. The OPA656 series also carries MSL 3 (168 Hours) moisture sensitivity, requiring more stringent storage and handling controls compared to the AD8048ARZ MSL 1 rating.

Q: Is the OPA2674ID suitable for single-channel applications?

A: The OPA2674ID is a dual-circuit current feedback amplifier. While it can be used in single-channel applications by utilizing only one circuit, this approach results in unused silicon and increased component cost. The device is optimized for dual-channel designs. Additionally, the current feedback topology differs from the voltage feedback topology of the AD8048ARZ, requiring different circuit design considerations. For single-channel applications, the LMH6609MA/NOPB or OPA656 series are more appropriate selections.

Q: What are the moisture sensitivity implications for OPA656 substitution?

A: The OPA656 series carries MSL 3 (168 Hours) rating, compared to the AD8048ARZ MSL 1 (Unlimited) rating. MSL 3 requires that components be stored in controlled humidity environments and used within 168 hours of exposure to ambient conditions above 30°C and 85% relative humidity. This necessitates implementation of moisture control procedures during storage, handling, and assembly. Organizations without established MSL 3 handling protocols should consider the LMH6609MA/NOPB, which carries MSL 1 rating and requires no special moisture control measures.

Q: Can the TL074BCD be used as a substitute?

A: No. The TL074BCD is not suitable as a substitute for the AD8048ARZ. The devices differ in amplifier topology (J-FET versus voltage feedback), circuit count (4 versus 1), package type (14-SOIC versus 8-SOIC), and operating temperature range (0°C to 70°C versus -40°C to 85°C). Performance characteristics are significantly lower, with slew rate of 13V/µs and bandwidth of 5.25 MHz compared to 1000V/µs and 260 MHz respectively. The TL074BCD is also in Obsolete product status, making it unsuitable for new designs.

Q: What compliance certifications should be verified when substituting parts?

A: All recommended substitutes (LMH6609MA/NOPB, OPA656 series, and OPA2674ID) carry ROHS3 compliance and REACH Unaffected status, matching the AD8048ARZ certifications. These certifications ensure compliance with environmental regulations for hazardous substances. When selecting substitutes, verify that ROHS3 and REACH status match the original component to maintain regulatory compliance in the final assembly.

Q: Are there any PCB layout considerations when substituting the AD8048ARZ?

A: The LMH6609MA/NOPB and OPA656 series are pin-compatible with the AD8048ARZ in 8-SOIC packaging, requiring no PCB layout modifications. The OPA2674ID also uses 8-SOIC packaging and is pin-compatible. However, the OPA2674ID is a dual-circuit device, so unused pins must be properly handled according to the device datasheet. The TL074BCD uses 14-SOIC packaging and is not pin-compatible, requiring PCB redesign.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message