AD8039ARZ Equivalent & Substitute Parts

Part Overview

The AD8039ARZ is a voltage feedback amplifier integrated circuit manufactured by Analog Devices Inc., configured as a dual-channel (2 circuit) device in an 8-SOIC surface mount package. This linear amplifier operates across a supply voltage range of 3V to 12V with an operating temperature range of -40°C to 85°C. The device is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance parameters and mechanical compatibility are required for design flexibility, inventory management, or supply chain continuity.

Key Parameters

Parameter	Value	Unit
Amplifier Type	Voltage Feedback	—
Number of Circuits	2	—
Slew Rate	425	V/µs
-3dB Bandwidth	350	MHz
Current - Input Bias	400	nA
Voltage - Input Offset	500	µV
Current - Supply (per 2 Channels)	1	mA
Voltage - Supply Span (Min)	3	V
Voltage - Supply Span (Max)	12	V
Operating Temperature Range	-40 to 85	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the AD8039ARZ are selected based on the following critical parameters that determine functional equivalence:

Primary Substitution Criteria:

Amplifier Type: Voltage Feedback
Number of Circuits: 2
Package / Case: 8-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Operating Temperature Range: -40°C to 85°C
Supply Voltage Span: 3V to 12V minimum compatibility

Secondary Performance Parameters:

Slew Rate: 425V/µs (baseline reference)
-3dB Bandwidth: 350 MHz (baseline reference)
Current - Input Bias: 400 nA (baseline reference)
Voltage - Input Offset: 500 µV (baseline reference)
Current - Supply: 1mA per 2 channels (baseline reference)

Substitute parts are grouped into two categories: Direct Equivalents (matching all primary criteria with comparable performance) and Compatible Alternatives (matching all primary criteria with performance variations within acceptable application ranges).

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Circuits	Slew Rate (V/µs)	-3dB Bandwidth (MHz)	Input Bias (nA)	Input Offset (µV)	Supply Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Package
AD8039ARZ	Analog Devices	Voltage Feedback	2	425	350	400	500	1	3	12	-40 to 85	8-SOIC
LMH6682MA/NOPB	Texas Instruments	Voltage Feedback	2	940	190	5000	1000	6.5	3	12	-40 to 85	8-SOIC
LMH6658MA/NOPB	National Semiconductor	Voltage Feedback	2	700	270	5000	1000	6.5	3	12	-40 to 85	8-SOIC
LMH6658MAX/NOPB	Texas Instruments	Voltage Feedback	2	700	270	5000	1000	6.5	3	12	-40 to 85	8-SOIC
OPA2652U	Texas Instruments	Voltage Feedback	2	335	700	4000	1500	11	6	12	-40 to 85	8-SOIC
OPA2652U/2K5	Texas Instruments	Voltage Feedback	2	335	700	4000	1500	11	6	12	-40 to 85	8-SOIC
OPA2614ID	Texas Instruments	Voltage Feedback	2	145	180	6000	200	12	5	12	-40 to 85	8-SOIC
OPA2614IDR	Texas Instruments	Voltage Feedback	2	145	180	6000	200	12	5	12	-40 to 85	8-SOIC
OPA2889ID	Texas Instruments	Voltage Feedback	2	250	115	150	1500	0.92	2.6	12	-40 to 85	8-SOIC
OPA2889IDR	Texas Instruments	Voltage Feedback	2	250	115	150	1500	0.92	2.6	12	-40 to 85	8-SOIC
LT1819CS8#TRPBF	Analog Devices	General Purpose	2	2500	400	2000	200	9	2.5	12.6	0 to 70	8-SOIC

Engineering Selection Recommendations

Direct Substitution Candidates (Voltage Feedback, 2 Circuit, 8-SOIC, -40°C to 85°C):

The following parts maintain full compatibility with the AD8039ARZ across all primary substitution criteria and operate within the same temperature range:

LMH6658MA/NOPB and LMH6658MAX/NOPB: Both devices maintain voltage feedback topology, dual-circuit configuration, and 8-SOIC packaging with identical supply voltage range (3V to 12V). These parts are suitable for applications where the -3dB bandwidth of 270 MHz and slew rate of 700V/µs are acceptable.
LMH6682MA/NOPB: Voltage feedback dual-circuit device in 8-SOIC with 3V to 12V supply range. Offers higher slew rate (940V/µs) and reduced -3dB bandwidth (190 MHz) compared to the AD8039ARZ.
OPA2889ID and OPA2889IDR: Voltage feedback dual-circuit devices in 8-SOIC with extended lower supply voltage limit (2.6V minimum). These parts feature lower input bias current (150 nA) and reduced supply current (0.92 mA per 2 channels), suitable for low-power applications.

Limited Compatibility Candidates:

OPA2652U and OPA2652U/2K5: Voltage feedback dual-circuit devices with higher -3dB bandwidth (700 MHz) but require minimum 6V supply (versus 3V for AD8039ARZ). Increased supply current (11 mA per 2 channels) and higher input offset voltage (1.5 mV).
OPA2614ID and OPA2614IDR: Voltage feedback dual-circuit devices with differential output configuration. Require minimum 5V supply and exhibit higher supply current (12 mA per 2 channels). Lower slew rate (145V/µs) and -3dB bandwidth (180 MHz).

Non-Compatible Candidate:

LT1819CS8#TRPBF: General purpose amplifier with operating temperature range limited to 0°C to 70°C, which does not meet the -40°C to 85°C requirement of the AD8039ARZ. This part is not suitable for direct substitution in applications requiring the full temperature range.

All recommended substitute parts maintain RoHS3 compliance and REACH unaffected status consistent with the AD8039ARZ.

Frequently Asked Questions (FAQ)

Q: Can the LMH6658MA/NOPB replace the AD8039ARZ in all applications?

A: The LMH6658MA/NOPB is compatible with the AD8039ARZ in terms of package, pin count, supply voltage range, and operating temperature. However, the -3dB bandwidth differs (270 MHz versus 350 MHz) and slew rate is higher (700V/µs versus 425V/µs). Substitution is valid when the application does not require the specific bandwidth and slew rate characteristics of the AD8039ARZ.

Q: What is the key difference between OPA2652U and OPA2614ID?

A: Both are dual-circuit voltage feedback amplifiers in 8-SOIC packages. The OPA2652U features standard output configuration with -3dB bandwidth of 700 MHz, while the OPA2614ID features differential output configuration with -3dB bandwidth of 180 MHz. Additionally, OPA2614ID requires a minimum 5V supply compared to 6V for OPA2652U.

Q: Why is the LT1819CS8#TRPBF not recommended as a substitute?

A: The LT1819CS8#TRPBF operates over a temperature range of 0°C to 70°C, which does not encompass the full -40°C to 85°C operating range of the AD8039ARZ. Applications requiring operation at temperatures below 0°C or above 70°C cannot use this part as a substitute.

Q: Are all substitute parts available in the same packaging format?

A: All substitute parts listed are available in 8-SOIC surface mount packages with 0.154" (3.90mm) width, matching the AD8039ARZ package specification. However, packaging options (Tube, Tape & Reel, Bulk) vary by part number and manufacturer. Verify the specific packaging requirement for your procurement process.

Q: What is the significance of the OPA2889ID having lower supply current than the AD8039ARZ?

A: The OPA2889ID draws 0.92 mA per 2 channels compared to 1 mA for the AD8039ARZ. This lower supply current makes the OPA2889ID suitable for battery-powered or power-constrained applications. However, the -3dB bandwidth (115 MHz) is significantly lower, limiting use to lower-frequency signal processing applications.

Q: Can I use OPA2652U in a 3V supply application?

A: No. The OPA2652U requires a minimum supply voltage of 6V, whereas the AD8039ARZ operates at 3V minimum. Applications designed for 3V supply operation cannot use the OPA2652U without circuit redesign to accommodate the higher supply voltage requirement.

Q: What compliance certifications are consistent across all substitute parts?

A: All substitute parts listed maintain RoHS3 compliance and REACH unaffected status, consistent with the AD8039ARZ. Moisture Sensitivity Level (MSL) varies between parts (MSL 1 or MSL 2), which may affect storage and handling requirements during assembly.

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