OP90GS-REEL7 Equivalent & Substitute Parts

Part Overview

The OP90GS-REEL7 is a general-purpose operational amplifier manufactured by Analog Devices Inc., housed in an 8-SOIC surface mount package. This linear amplifier integrated circuit contains a single amplifier circuit designed for general-purpose applications. The OP90GS-REEL7 is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and production continuity. Active alternatives with comparable or enhanced electrical characteristics are available from multiple manufacturers.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	1	—
Slew Rate	0.012	V/µs
Current - Input Bias	4	nA
Voltage - Input Offset	125	µV
Current - Supply	14	µA
Current - Output / Channel	5	mA
Voltage - Supply Span (Min)	1.6	V
Voltage - Supply Span (Max)	36	V
Operating Temperature	-40 to 85	°C
Mounting Type	Surface Mount	—
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the OP90GS-REEL7 is determined by compatibility across the following critical parameters: package type (8-SOIC surface mount), amplifier classification (general-purpose), circuit count (single circuit), and operating temperature range (-40°C to 85°C). All substitute parts maintain the identical 8-SOIC package footprint, enabling direct board-level replacement without layout modifications.

The OP90GSZ-REEL7 represents a direct equivalent from the same manufacturer with identical electrical specifications and active product status. The MC33171DT, MC33071DR2G, and OPA637AU are classified as similar alternatives that maintain functional compatibility within the general-purpose amplifier category while offering variations in electrical performance characteristics such as slew rate, gain-bandwidth product, and supply current.

Substitution logic prioritizes: (1) package compatibility (8-SOIC), (2) amplifier type (general-purpose), (3) operating temperature range overlap, and (4) electrical parameter compatibility within application requirements.

Parameter Comparison

Parameter	OP90GS-REEL7	OP90GSZ-REEL7	MC33171DT	MC33071DR2G	OPA637AU
Manufacturer	Analog Devices Inc.	Analog Devices Inc.	STMicroelectronics	onsemi	Burr Brown
Product Status	Obsolete	Active	Active	Active	Active
Amplifier Type	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose
Number of Circuits	1	1	1	1	1
Slew Rate (V/µs)	0.012	0.012	2	13	135
Current - Input Bias (nA)	4	4	20	100	0.002
Voltage - Input Offset (µV)	125	125	1000	1000	130
Current - Supply (µA)	14	14	220	1900	7000
Current - Output / Channel (mA)	5	5	27	30	45
Voltage - Supply Span (Min) (V)	1.6	1.6	4	3	9
Voltage - Supply Span (Max) (V)	36	36	44	44	36
Operating Temperature (°C)	-40 to 85	-40 to 85	-40 to 105	-40 to 85	-25 to 85
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	—
RoHS Status	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—

Engineering Selection Recommendations

OP90GSZ-REEL7 is the primary direct substitute for OP90GS-REEL7. This part maintains identical electrical specifications and operating parameters while offering active product status and ROHS3 compliance. The OP90GSZ-REEL7 is supplied in Cut Tape and Digi-Reel packaging formats, providing production flexibility. This substitution requires no circuit redesign or application modification.

MC33171DT (STMicroelectronics) is suitable for applications where extended operating temperature range (-40°C to 105°C) is required. This part maintains the 8-SOIC package and general-purpose amplifier classification. The MC33171DT exhibits higher slew rate (2 V/µs) and increased output current capability (27 mA) compared to the OP90GS-REEL7, with ROHS3 compliance and active product status.

MC33071DR2G (onsemi) provides enhanced performance characteristics including significantly higher slew rate (13 V/µs), gain-bandwidth product (4.5 MHz), and output current (30 mA). This part is suitable for applications requiring improved dynamic response. The MC33071DR2G maintains 8-SOIC packaging, ROHS3 compliance, and active product status. Minimum supply voltage requirement is 3 V compared to 1.6 V for the OP90GS-REEL7.

OPA637AU (Burr Brown) represents a high-performance alternative with exceptional slew rate (135 V/µs), gain-bandwidth product (80 MHz), and extremely low input bias current (2 pA). This part is classified within the Difet® series and is suitable for precision, high-speed applications. The OPA637AU requires minimum supply voltage of 9 V and operates within -25°C to 85°C temperature range. Active product status is confirmed.

All substitute parts maintain MSL rating of 1 (Unlimited) and are classified under ECCN EAR99 and HTSUS 8542.33.0001, consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can OP90GSZ-REEL7 be used as a direct replacement for OP90GS-REEL7?

A: Yes. The OP90GSZ-REEL7 is a direct equivalent with identical electrical specifications, operating temperature range, and 8-SOIC package. The primary difference is product status (active versus obsolete) and packaging format (Cut Tape and Digi-Reel versus standard reel). No circuit modifications are required.

Q: What are the key differences between OP90GS-REEL7 and MC33171DT?

A: The MC33171DT offers higher slew rate (2 V/µs versus 0.012 V/µs), increased output current capability (27 mA versus 5 mA), and extended operating temperature range (-40°C to 105°C versus -40°C to 85°C). The MC33171DT requires minimum supply voltage of 4 V compared to 1.6 V for the OP90GS-REEL7. Both parts share identical 8-SOIC packaging.

Q: Is the OPA637AU suitable for low-voltage applications?

A: No. The OPA637AU requires minimum supply voltage of 9 V, making it unsuitable for applications operating below this threshold. The OP90GS-REEL7 and OP90GSZ-REEL7 support minimum supply voltage of 1.6 V, providing superior low-voltage capability.

Q: Are all substitute parts ROHS3 compliant?

A: The OP90GSZ-REEL7, MC33171DT, and MC33071DR2G are confirmed ROHS3 compliant. The OPA637AU does not specify RoHS status in the provided data.

Q: What is the operating temperature range limitation for OPA637AU?

A: The OPA637AU operates within -25°C to 85°C, which does not extend to the lower temperature limit of -40°C specified for the OP90GS-REEL7. Applications requiring operation below -25°C must use alternative substitutes.

Q: Do all substitute parts use the same 8-SOIC package footprint?

A: Yes. All substitute parts (OP90GSZ-REEL7, MC33171DT, MC33071DR2G, and OPA637AU) are housed in 8-SOIC packages with 0.154" width (3.90mm), enabling direct board-level replacement without PCB layout modifications.

Q: Which substitute offers the lowest supply current consumption?

A: The OP90GSZ-REEL7 maintains the lowest supply current at 14 µA, identical to the OP90GS-REEL7. The MC33171DT consumes 220 µA, while the MC33071DR2G and OPA637AU consume 1.9 mA and 7 mA respectively.

Q: Can MC33071DR2G operate at 1.6 V supply voltage?

A: No. The MC33071DR2G requires minimum supply voltage of 3 V. Applications operating at 1.6 V supply voltage must use OP90GS-REEL7, OP90GSZ-REEL7, or verify alternative designs.

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