OPA698ID Equivalent & Substitute Parts

Part Overview

The OPA698ID is a voltage feedback amplifier integrated circuit manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This device is classified as a Last Time Buy product, indicating discontinued production with limited remaining inventory of 7578 pieces. The OPA698ID delivers a gain bandwidth product of 250 MHz with a slew rate of 1100V/µs, suitable for high-speed signal conditioning and amplification applications requiring single-supply or dual-supply operation between 5V and 12V.

Due to Last Time Buy status, identifying equivalent substitute parts with compatible electrical and mechanical specifications is essential for design continuity and long-term component availability.

Substiute Parts

OPA698ID

Texas InstrumentsIn Stock: 7606OPA698ID Datasheet

Current PartRFQ

OPA698IDR

Texas InstrumentsIn Stock: 21275OPA698IDR Datasheet

MFR RecommendedRFQ

AD8037SRZ-EP

Analog Devices Inc.In Stock: 1150AD8037SRZ-EP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the OPA698ID is determined by strict alignment with the following critical parameters:

Mechanical Compatibility:

• Package type: 8-SOIC surface mount only
• Package dimensions: 0.154" width, 3.90mm width
• Mounting type: Surface mount

Electrical Compatibility:

• Amplifier topology: Voltage feedback architecture
• Number of circuits: Single circuit per package
• Supply voltage range: Minimum 5V to maximum 12V operation
• Input bias current: 3 µA
• Input offset voltage: 2 mV
• Output current capability: 120 mA per channel

Regulatory Compliance:

• RoHS3 compliance required
• REACH unaffected status

Substitute parts must satisfy all mechanical requirements and maintain electrical parameters within the specified ranges. Deviations in slew rate, gain bandwidth product, or bandwidth do not disqualify a part if all primary parameters align.

Parameter Comparison

Engineering Selection Recommendations

OPA698IDR (Texas Instruments):

The OPA698IDR is the manufacturer-recommended direct substitute for the OPA698ID. Both parts share identical electrical specifications, including slew rate (1100V/µs), gain bandwidth product (250 MHz), and -3dB bandwidth (450 MHz). The primary difference is packaging format: OPA698IDR is supplied in Cut Tape and Digi-Reel format with Active product status and significantly higher inventory availability (21189 pieces). The OPA698IDR maintains the same 8-SOIC package, operating temperature range (-40°C to 85°C), supply voltage range (5V to 12V), and RoHS3 compliance. This substitute is suitable for direct replacement in new designs and production continuity.

AD8037SRZ-EP (Analog Devices Inc.):

The AD8037SRZ-EP is an alternative voltage feedback amplifier in 8-SOIC packaging with Active product status. This device exhibits enhanced performance characteristics: slew rate of 1500V/µs (36% higher than OPA698ID), extended operating temperature range (-55°C to 105°C), and improved moisture sensitivity rating (MSL 1 vs. MSL 2). However, the AD8037SRZ-EP has reduced output current capability (70 mA vs. 120 mA), higher supply current (18.5 mA vs. 15.5 mA), lower -3dB bandwidth (270 MHz vs. 450 MHz), and requires minimum 6V supply (vs. 5V minimum). The AD8037SRZ-EP is suitable for applications requiring extended temperature operation or higher slew rate performance, provided output current and bandwidth requirements are compatible with the reduced specifications.

Frequently Asked Questions (FAQ)

Q: Can OPA698IDR be used as a direct replacement for OPA698ID?

A: Yes. The OPA698IDR is electrically and mechanically identical to the OPA698ID. Both devices feature the same 8-SOIC package, identical electrical specifications (slew rate, bandwidth, supply current, output current), and matching operating temperature range. The only difference is packaging format (tube vs. cut tape/reel). OPA698IDR is the recommended substitute due to Active product status and higher inventory availability.

Q: What are the key differences between OPA698ID and AD8037SRZ-EP?

A: Both are single-circuit voltage feedback amplifiers in 8-SOIC packages. The AD8037SRZ-EP offers higher slew rate (1500V/µs vs. 1100V/µs) and extended temperature range (-55°C to 105°C vs. -40°C to 85°C). However, it has lower output current (70 mA vs. 120 mA), lower bandwidth (270 MHz vs. 450 MHz), higher supply current (18.5 mA vs. 15.5 mA), and requires minimum 6V supply instead of 5V. Selection depends on whether your application prioritizes slew rate and temperature range over output current and bandwidth.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. Both OPA698IDR and AD8037SRZ-EP are ROHS3 compliant, matching the OPA698ID compliance status. All three parts are REACH unaffected.

Q: What is the difference between OPA698ID and OPA698IDR packaging?

A: OPA698ID is supplied in Tube packaging, while OPA698IDR is supplied in Cut Tape (CT) and Digi-Reel format. Both use identical 8-SOIC surface mount packages with 0.154" width and 3.90mm dimensions. The packaging format affects handling, storage, and automated assembly compatibility but does not affect electrical performance.

Q: Can AD8037SRZ-EP operate at 5V supply voltage?

A: No. The AD8037SRZ-EP requires a minimum supply voltage of 6V, whereas the OPA698ID operates down to 5V minimum. If your application requires 5V single-supply operation, the AD8037SRZ-EP is not suitable. Use OPA698IDR instead.

Q: What is the moisture sensitivity level difference between OPA698ID and AD8037SRZ-EP?

A: OPA698ID has MSL 2 (1 Year shelf life), while AD8037SRZ-EP has MSL 1 (Unlimited shelf life). MSL 1 provides superior moisture protection and longer storage capability without baking requirements.

Q: Are there output current limitations when selecting a substitute?

A: Yes. The OPA698ID and OPA698IDR both provide 120 mA output current per channel. The AD8037SRZ-EP provides only 70 mA output current. If your circuit requires output currents exceeding 70 mA, the AD8037SRZ-EP cannot be used as a substitute.