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AD8058ARM Equivalent & Substitute Parts
Part Overview
The AD8058ARM is a voltage feedback amplifier integrated circuit manufactured by Analog Devices Inc., configured as a dual-channel (2 circuit) operational amplifier in an 8-MSOP surface mount package. This device is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement.
The AD8058ARM operates across a supply voltage range of 3V to 12V with an operating temperature range of -40°C to 85°C. Its primary specifications include a slew rate of 1150V/µs, gain bandwidth product of 100 MHz, and input bias current of 500 nA. The device is suitable for applications requiring moderate-speed voltage feedback amplification in compact form factors.
Due to its obsolete status, direct equivalents and functional substitutes are necessary for new designs, production continuity, and component sourcing.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | Voltage Feedback | — |
| Number of Circuits | 2 | — |
| Slew Rate | 1150 | V/µs |
| Gain Bandwidth Product | 100 | MHz |
| -3dB Bandwidth | 325 | MHz |
| Current - Input Bias | 500 | nA |
| Voltage - Input Offset | 1 | mV |
| Current - Supply | 14 | mA |
| Voltage - Supply Span (Min) | 3 | V |
| Voltage - Supply Span (Max) | 12 | V |
| Operating Temperature Range | -40 to 85 | °C |
| Mounting Type | Surface Mount | — |
| Package / Case | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the AD8058ARM is determined by the following critical parameters:
Primary Substitution Criteria:
- Amplifier Type: Voltage Feedback
- Number of Circuits: 2
- Package / Case: 8-MSOP or compatible 8-pin surface mount package
- Supply Voltage Range: Minimum 3V, Maximum 12V
- Operating Temperature Range: -40°C to 85°C
- Mounting Type: Surface Mount
Substitution Categories:
Category 1: Direct Equivalent (Identical Specifications) The AD8058ARMZ is a direct equivalent to the AD8058ARM. Both devices share identical electrical specifications, package configuration, and functional characteristics. The primary difference is product status: AD8058ARMZ is active, whereas AD8058ARM is obsolete. Packaging differs (Tube vs. original specification), but electrical performance is identical.
Category 2: Functional Substitutes (Voltage Feedback, Dual-Channel, Compatible Package) The LMH6655MM/NOPB, LMH6655MMX/NOPB, LMH6658MM/NOPB, LMH6658MMX/NOPB, and LMH6682MM/NOPB are voltage feedback amplifiers with dual-channel configuration in 8-VSSOP packages. These devices operate within the required supply voltage range (3V to 12V minimum, 12V maximum) and support the full operating temperature range (-40°C to 85°C). While package designations differ (8-VSSOP vs. 8-MSOP), both are 8-pin surface mount packages with compatible pinouts for voltage feedback amplifier applications.
Category 3: General Purpose Substitutes (Dual-Channel, Compatible Package, Extended Performance) The LT1819CMS8#PBF, LT1819CMS8#TRPBF, LT1819IMS8#PBF, and LT1819IMS8#TRPBF are general purpose operational amplifiers with dual-channel configuration in 8-MSOP packages. These devices provide higher slew rate (2500V/µs) and gain bandwidth product (400 MHz) compared to the AD8058ARM. Operating temperature ranges vary: LT1819CMS8 variants support 0°C to 70°C, while LT1819IMS8 variants support -40°C to 85°C. Supply voltage compatibility is maintained (2.5V to 12.6V).
Parameter Comparison
| Part Number | Manufacturer | Product Status | Amplifier Type | Number of Circuits | Slew Rate (V/µs) | GBW (MHz) | Input Bias (nA) | Supply Min (V) | Supply Max (V) | Temp Range (°C) | Package |
|---|---|---|---|---|---|---|---|---|---|---|---|
| AD8058ARM | Analog Devices Inc. | Obsolete | Voltage Feedback | 2 | 1150 | 100 | 500 | 3 | 12 | -40 to 85 | 8-MSOP |
| AD8058ARMZ | Analog Devices Inc. | Active | Voltage Feedback | 2 | 1150 | 100 | 500 | 3 | 12 | -40 to 85 | 8-MSOP |
| LT1819CMS8#PBF | Analog Devices Inc. | Active | General Purpose | 2 | 2500 | 400 | 2000 | 2.5 | 12.6 | 0 to 70 | 8-MSOP |
| LT1819CMS8#TRPBF | Analog Devices Inc. | Active | General Purpose | 2 | 2500 | 400 | 2000 | 2.5 | 12.6 | 0 to 70 | 8-MSOP |
| LT1819IMS8#PBF | Analog Devices Inc. | Active | General Purpose | 2 | 2500 | 400 | 2000 | 2.5 | 12.6 | -40 to 85 | 8-MSOP |
| LT1819IMS8#TRPBF | Analog Devices Inc. | Active | General Purpose | 2 | 2500 | 400 | 2000 | 2.5 | 12.6 | -40 to 85 | 8-MSOP |
| LMH6655MM/NOPB | Texas Instruments | Active | Voltage Feedback | 2 | 200 | 260 | 5000 | 4.5 | 12 | -40 to 85 | 8-VSSOP |
| LMH6655MMX/NOPB | Texas Instruments | Active | Voltage Feedback | 2 | 200 | 260 | 5000 | 4.5 | 12 | -40 to 85 | 8-VSSOP |
| LMH6658MM/NOPB | Texas Instruments | Active | Voltage Feedback | 2 | 700 | 140 | 5000 | 3 | 12 | -40 to 85 | 8-VSSOP |
| LMH6658MMX/NOPB | National Semiconductor | Active | Voltage Feedback | 2 | 700 | 140 | 5000 | 3 | 12 | -40 to 85 | 8-VSSOP |
| LMH6682MM/NOPB | National Semiconductor | Active | Voltage Feedback | 2 | 940 | 120 | 5000 | 3 | 12 | -40 to 85 | 8-VSSOP |
Engineering Selection Recommendations
For Direct Replacement (Identical Electrical Performance):
The AD8058ARMZ is the recommended direct replacement for the AD8058ARM. This device maintains all electrical specifications, package configuration, and functional characteristics while offering active product status. The AD8058ARMZ is available in Tube packaging and is RoHS3 compliant with REACH unaffected status, providing regulatory compliance for current manufacturing standards.
For Voltage Feedback Amplifier Applications (Texas Instruments / National Semiconductor Alternatives):
The LMH6658MM/NOPB and LMH6658MMX/NOPB are suitable substitutes for applications requiring voltage feedback amplification with rail-to-rail output capability. These devices operate within the required supply voltage range (3V to 12V) and full temperature range (-40°C to 85°C). The slew rate of 700V/µs and gain bandwidth product of 140 MHz provide performance between the AD8058ARM and higher-speed alternatives. Both devices are RoHS3 compliant and REACH unaffected.
The LMH6682MM/NOPB offers slew rate of 940V/µs and gain bandwidth product of 120 MHz, providing intermediate performance characteristics. This device is also RoHS3 compliant and REACH unaffected.
The LMH6655MM/NOPB and LMH6655MMX/NOPB provide voltage feedback amplification with lower slew rate (200V/µs) and moderate gain bandwidth product (260 MHz). These devices require minimum supply voltage of 4.5V, which may limit applicability in designs requiring 3V operation. Both are RoHS3 compliant and REACH unaffected.
For General Purpose Amplifier Applications (Analog Devices LT1819 Series):
The LT1819IMS8#PBF and LT1819IMS8#TRPBF are general purpose operational amplifiers suitable for applications where higher performance is acceptable. These devices support the full operating temperature range (-40°C to 85°C) and provide significantly higher slew rate (2500V/µs) and gain bandwidth product (400 MHz). Both are RoHS3 compliant and REACH unaffected.
The LT1819CMS8#PBF and LT1819CMS8#TRPBF are functionally equivalent to the LT1819IMS8 variants but operate over a reduced temperature range (0°C to 70°C). These devices are suitable only for applications not requiring full -40°C to 85°C operation.
Compliance and Regulatory Status:
All recommended substitute parts are RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.
Frequently Asked Questions (FAQ)
Q: Can the AD8058ARMZ be used as a direct replacement for the AD8058ARM?
A: Yes. The AD8058ARMZ is electrically and functionally identical to the AD8058ARM. Both devices share the same slew rate (1150V/µs), gain bandwidth product (100 MHz), supply voltage range (3V to 12V), and operating temperature range (-40°C to 85°C). The primary difference is product status: AD8058ARMZ is active, while AD8058ARM is obsolete. Packaging differs (Tube vs. original), but this does not affect electrical performance.
Q: What are the key differences between the AD8058ARM and the LT1819 series?
A: The LT1819 series are general purpose operational amplifiers, whereas the AD8058ARM is a voltage feedback amplifier. The LT1819 devices provide higher slew rate (2500V/µs vs. 1150V/µs) and higher gain bandwidth product (400 MHz vs. 100 MHz). The LT1819IMS8 variants support the full temperature range (-40°C to 85°C), while LT1819CMS8 variants support only 0°C to 70°C. The LT1819 series are suitable for applications requiring higher-speed amplification.
Q: Are the LMH6655 and LMH6658 devices compatible with the AD8058ARM?
A: The LMH6655 and LMH6658 devices are voltage feedback amplifiers with dual-channel configuration, making them functionally compatible with the AD8058ARM. However, electrical performance differs. The LMH6658 series provides slew rate of 700V/µs and gain bandwidth product of 140 MHz. The LMH6655 series provides slew rate of 200V/µs and gain bandwidth product of 260 MHz. The LMH6655 series requires minimum supply voltage of 4.5V, which may not be compatible with 3V supply designs. Both series operate across the full temperature range (-40°C to 85°C).
Q: What is the difference between 8-MSOP and 8-VSSOP packages?
A: Both 8-MSOP and 8-VSSOP are 8-pin surface mount packages with 0.118" (3.00mm) width. The primary difference is in the specific pin configuration and physical dimensions. For voltage feedback amplifier applications, both packages are compatible in terms of functional pinout. However, physical board layout and footprint design must accommodate the specific package type. Consult device datasheets for precise pin assignments and mechanical specifications.
Q: Which substitute part should I select for a new design?
A: For new designs requiring voltage feedback amplification with specifications matching the AD8058ARM, the AD8058ARMZ is the recommended choice due to identical electrical performance and active product status. For applications where higher performance is acceptable, the LT1819IMS8#PBF or LT1819IMS8#TRPBF provide superior slew rate and gain bandwidth product while maintaining the full operating temperature range. For applications with reduced temperature requirements (0°C to 70°C), the LT1819CMS8 variants are suitable. For Texas Instruments / National Semiconductor sourcing preferences, the LMH6658MM/NOPB or LMH6658MMX/NOPB provide voltage feedback amplification with rail-to-rail output capability.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All recommended substitute parts are RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.
Q: What is the moisture sensitivity level (MSL) for these devices?
A: All listed devices, including the AD8058ARM and all substitute parts, have Moisture Sensitivity Level (MSL) of 1 (Unlimited). This indicates the devices are not sensitive to moisture absorption and do not require special handling or storage conditions related to moisture exposure.
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