AD8057ART-REEL7 Equivalent & Substitute Parts

Part Overview

The AD8057ART-REEL7 is a voltage feedback operational amplifier manufactured by Analog Devices Inc., housed in a SOT-23-5 surface mount package. This single-circuit device delivers a slew rate of 1150 V/µs and operates across a -3dB bandwidth of 325 MHz, making it suitable for high-speed signal conditioning and amplification applications. The part is classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and ongoing production requirements. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts offer comparable performance within defined parameter tolerances.

Key Parameters

Parameter	Value	Unit
Amplifier Type	Voltage Feedback	—
Number of Circuits	1	—
Slew Rate	1150	V/µs
-3dB Bandwidth	325	MHz
Current - Input Bias	500	nA
Voltage - Input Offset	1	mV
Current - Supply	6	mA
Voltage - Supply Span (Min)	3	V
Voltage - Supply Span (Max)	12	V
Operating Temperature	-40 to 85	°C
Mounting Type	Surface Mount	—
Package / Case	SC-74A, SOT-753	—
Supplier Device Package	SOT-23-5	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the AD8057ART-REEL7 is determined by alignment across the following critical parameters: amplifier type (voltage feedback topology), number of circuits (single), package form factor (SOT-23-5), operating temperature range (-40°C to 85°C), and supply voltage span (3 V to 12 V minimum). Parts are grouped into two categories:

Direct Equivalent: AD8057ARTZ-REEL7 maintains identical electrical specifications including slew rate (1150 V/µs), bandwidth (325 MHz), input bias current (500 nA), and supply current (6 mA). This part differs only in product status (active versus obsolete) and packaging format (Cut Tape & Digi-Reel versus reel configuration).

Functional Substitutes: LMH6657MF/NOPB, LMH6657MFX/NOPB, LMH6657MG/NOPB, OPA653IDBVR, OPA653IDBVT, OPA820IDBVR, OPA820IDBVT, OPA830IDBVR, and OPA830IDBVT operate within the same supply voltage range and temperature specification. These parts maintain voltage feedback or J-FET amplifier topology with SOT-23-5 or SC-70-5 packaging. Electrical performance varies across slew rate, bandwidth, and input bias current specifications, requiring application-level assessment for compatibility.

Parameter Comparison

Part Number	Manufacturer	Product Status	Amplifier Type	Slew Rate (V/µs)	-3dB Bandwidth (MHz)	Input Bias (nA/pA/µA)	Input Offset (mV/µV)	Supply Current (mA)	Supply Span Min (V)	Supply Span Max (V)	Package
AD8057ART-REEL7	Analog Devices Inc.	Obsolete	Voltage Feedback	1150	325	500 nA	1 mV	6	3	12	SOT-23-5
AD8057ARTZ-REEL7	Analog Devices Inc.	Active	Voltage Feedback	1150	325	500 nA	1 mV	6	3	12	SOT-23-5
LMH6657MF/NOPB	National Semiconductor	Active	Voltage Feedback	700	270	5 µA	1 mV	6.5	3	12	SOT-23-5
LMH6657MFX/NOPB	Texas Instruments	Active	Voltage Feedback	700	270	5 µA	1 mV	6.5	3	12	SOT-23-5
LMH6657MG/NOPB	National Semiconductor	Active	Voltage Feedback	700	270	5 µA	1 mV	6.5	3	12	SC-70-5
OPA653IDBVR	Texas Instruments	Active	J-FET	2675	500	10 pA	1 mV	32	7	13	SOT-23-5
OPA653IDBVT	Texas Instruments	Active	J-FET	2675	500	10 pA	1 mV	32	7	13	SOT-23-5
OPA820IDBVR	Texas Instruments	Active	Voltage Feedback	240	800	9 µA	200 µV	5.6	5	12	SOT-23-5
OPA820IDBVT	Texas Instruments	Active	Voltage Feedback	240	800	9 µA	200 µV	5.6	5	12	SOT-23-5
OPA830IDBVR	Texas Instruments	Active	Voltage Feedback	600	310	5 µA	1.5 mV	4.25	2.8	11	SOT-23-5
OPA830IDBVT	Texas Instruments	Last Time Buy	Voltage Feedback	600	310	5 µA	1.5 mV	4.25	2.8	11	SOT-23-5

Engineering Selection Recommendations

Direct Replacement: AD8057ARTZ-REEL7 is the primary direct equivalent for AD8057ART-REEL7. Both parts maintain identical electrical performance specifications and operating parameters. AD8057ARTZ-REEL7 carries active product status and ROHS3 compliance, making it suitable for new designs and production continuity. The packaging format differs (Cut Tape & Digi-Reel versus reel), which may affect procurement and assembly workflows but does not impact electrical function.

Voltage Feedback Substitutes with Reduced Slew Rate: LMH6657MF/NOPB and LMH6657MFX/NOPB deliver 700 V/µs slew rate and 270 MHz bandwidth, representing reduced performance relative to the AD8057ART-REEL7. These parts maintain identical supply voltage range (3 V to 12 V) and operating temperature (-40°C to 85°C). LMH6657MG/NOPB offers equivalent electrical performance in SC-70-5 package format. Selection of these parts requires confirmation that application bandwidth and slew rate requirements do not exceed 270 MHz and 700 V/µs respectively.

High-Performance J-FET Substitutes: OPA653IDBVR and OPA653IDBVT employ J-FET input topology, delivering 2675 V/µs slew rate and 500 MHz bandwidth. These parts require minimum supply voltage of 7 V (versus 3 V for AD8057ART-REEL7) and maximum supply voltage of 13 V (versus 12 V). Input bias current is 10 pA, substantially lower than the 500 nA specification of the AD8057ART-REEL7. Supply current requirement is 32 mA, significantly higher than 6 mA. Selection requires verification that supply voltage range and increased power consumption are acceptable for the application.

Voltage Feedback Substitutes with Extended Bandwidth: OPA820IDBVR and OPA820IDBVT provide 800 MHz bandwidth and 240 V/µs slew rate. These parts require minimum supply voltage of 5 V (versus 3 V) and deliver reduced slew rate performance. OPA830IDBVR and OPA830IDBVT offer 310 MHz bandwidth and 600 V/µs slew rate with extended lower supply voltage capability (2.8 V minimum). OPA830IDBVT carries Last Time Buy status, indicating limited future availability.

All substitute parts maintain SOT-23-5 surface mount packaging and -40°C to 85°C operating temperature range. RoHS3 compliance and REACH unaffected status are confirmed for active parts. Selection must account for specific application requirements regarding bandwidth, slew rate, supply voltage constraints, and power consumption.

Frequently Asked Questions (FAQ)

Q: Can AD8057ARTZ-REEL7 directly replace AD8057ART-REEL7 in production?

A: Yes. AD8057ARTZ-REEL7 maintains identical electrical specifications including 1150 V/µs slew rate, 325 MHz bandwidth, 500 nA input bias current, and 6 mA supply current. The part carries active product status and ROHS3 compliance. Packaging format differs (Cut Tape & Digi-Reel versus reel configuration), which may require adjustment to procurement and assembly processes but does not affect electrical performance or PCB layout.

Q: What is the primary difference between voltage feedback and J-FET amplifier topologies in this comparison?

A: Voltage feedback amplifiers (AD8057ART-REEL7, LMH6657 series, OPA820, OPA830) employ resistive feedback networks and typically exhibit higher input bias current (nanoamperes to microamperes range). J-FET amplifiers (OPA653 series) utilize junction field-effect transistor input stages, delivering extremely low input bias current (picoamperes) at the cost of higher supply current and restricted supply voltage range. Topology selection depends on application requirements for input impedance, bias current compensation, and available supply voltage.

Q: Why do LMH6657 parts show lower slew rate and bandwidth than AD8057ART-REEL7?

A: LMH6657MF/NOPB, LMH6657MFX/NOPB, and LMH6657MG/NOPB deliver 700 V/µs slew rate and 270 MHz bandwidth, compared to 1150 V/µs and 325 MHz for the AD8057ART-REEL7. These specifications reflect different circuit design and compensation strategies. Applications requiring high-speed transient response or bandwidth exceeding 270 MHz cannot use LMH6657 parts as direct substitutes.

Q: Are OPA653 parts suitable substitutes for high-speed applications?

A: OPA653IDBVR and OPA653IDBVT deliver superior slew rate (2675 V/µs) and bandwidth (500 MHz) compared to AD8057ART-REEL7. However, these J-FET parts require minimum supply voltage of 7 V, whereas AD8057ART-REEL7 operates from 3 V minimum. Supply current is 32 mA versus 6 mA. Substitution is valid only when application supply voltage range accommodates 7 V to 13 V operation and increased power consumption is acceptable.

Q: What packaging considerations apply to LMH6657MG/NOPB?

A: LMH6657MG/NOPB is housed in SC-70-5 package (5-TSSOP, SOT-353), whereas AD8057ART-REEL7 uses SOT-23-5 (SC-74A, SOT-753). These packages have different pin configurations and PCB footprints. Substitution requires PCB redesign and verification of pin assignment compatibility. Electrical performance is equivalent to LMH6657MF/NOPB and LMH6657MFX/NOPB.

Q: Why is OPA830IDBVT marked as Last Time Buy?

A: OPA830IDBVT carries Last Time Buy product status, indicating that Texas Instruments has announced end-of-life for this part number. Existing inventory is available for purchase, but future availability is not guaranteed. OPA830IDBVR (Active status) provides equivalent electrical performance and is recommended for new designs requiring OPA830 specifications.

Q: Can OPA820 parts replace AD8057ART-REEL7 in bandwidth-critical applications?

A: OPA820IDBVR and OPA820IDBVT deliver 800 MHz bandwidth, exceeding the 325 MHz specification of AD8057ART-REEL7. However, slew rate is reduced to 240 V/µs, and minimum supply voltage requirement is 5 V (versus 3 V). Applications requiring both high bandwidth and low supply voltage cannot use OPA820 parts. Substitution is valid when supply voltage minimum of 5 V is acceptable and slew rate performance is not critical.

Q: What is the significance of MSL (Moisture Sensitivity Level) ratings in this comparison?

A: AD8057ART-REEL7 and AD8057ARTZ-REEL7 carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling. OPA653, OPA820, and OPA830 parts carry MSL 2 (1 Year), requiring controlled storage conditions and limiting shelf life to one year from manufacturing date. Procurement and inventory management procedures must account for MSL 2 requirements to prevent component degradation.

Q: Are all substitute parts RoHS3 compliant?

A: AD8057ARTZ-REEL7, LMH6657MFX/NOPB, OPA653IDBVR, OPA653IDBVT, OPA820IDBVR, OPA820IDBVT, OPA830IDBVR, and OPA830IDBVT carry confirmed ROHS3 compliance. LMH6657MF/NOPB and LMH6657MG/NOPB do not list RoHS status in provided specifications. Verification with manufacturer documentation is required for RoHS compliance confirmation when regulatory requirements mandate ROHS3 certification.

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