OPA690IDG4 Equivalent & Substitute Parts

Part Overview

The OPA690IDG4 is a voltage feedback amplifier integrated circuit manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This device is classified as obsolete, necessitating identification of equivalent substitute components for ongoing design support and procurement. The OPA690IDG4 delivers high-speed amplification with a 1800V/µs slew rate and 300 MHz gain bandwidth product, suitable for applications requiring wideband signal conditioning and high-frequency amplification.

Substiute Parts

OPA690IDG4

Texas InstrumentsIn Stock: 1141OPA690IDG4 Datasheet

Current PartRFQ

OPA690ID

Texas InstrumentsIn Stock: 1909OPA690ID Datasheet

MFR RecommendedRFQ

AD8038ARZ

Analog Devices Inc.In Stock: 1484AD8038ARZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the OPA690IDG4 are identified based on strict electrical and mechanical compatibility criteria. The primary substitution logic is based on the following allowed parameters:

Mechanical Compatibility:

• Identical package type: 8-SOIC (0.154", 3.90mm Width)
• Surface mount mounting type
• Pin-compatible footprint

Electrical Compatibility:

• Voltage feedback amplifier topology
• Single circuit configuration
• Operating temperature range: -40°C to 85°C
• Supply voltage range overlap: minimum 5V to maximum 12V
• Compliance certifications: ROHS3, REACH Unaffected, EAR99

Performance Parameters: Substitutes must maintain functional equivalence within the allowed parameter ranges. Variations in slew rate, gain bandwidth product, input bias current, and input offset voltage are permitted provided the substitute operates within the specified supply voltage and temperature ranges.

Parameter Comparison

Engineering Selection Recommendations

OPA690ID (Texas Instruments)

The OPA690ID is the direct successor to the OPA690IDG4 within the Texas Instruments product line. Both devices share identical electrical specifications, including slew rate (1800V/µs), gain bandwidth product (300 MHz), -3dB bandwidth (500 MHz), input bias current (3 µA), input offset voltage (1 mV), supply current (5.5 mA), and output current capability (190 mA). The OPA690ID maintains the same 8-SOIC package footprint and operating temperature range (-40°C to 85°C). The primary distinction is product status: OPA690ID is active and available in production quantities, whereas OPA690IDG4 is obsolete. Both devices are ROHS3 compliant and REACH unaffected. The OPA690ID is supplied in tube packaging and represents the recommended direct replacement for new designs and ongoing procurement.

AD8038ARZ (Analog Devices Inc.)

The AD8038ARZ is a cross-manufacturer substitute offering voltage feedback amplification in the same 8-SOIC package. This device operates within the same temperature range (-40°C to 85°C) and maintains compatibility with the 5V to 12V supply voltage range. The AD8038ARZ exhibits lower input bias current (400 nA versus 3 µA) and lower input offset voltage (500 µV versus 1 mV), resulting in improved DC precision characteristics. However, the AD8038ARZ operates at reduced slew rate (425V/µs versus 1800V/µs) and -3dB bandwidth (350 MHz versus 500 MHz). The AD8038ARZ is active in production, ROHS3 compliant, and features superior moisture sensitivity rating (MSL 1 versus MSL 2). Selection of the AD8038ARZ is appropriate for applications where lower input bias current and reduced power consumption (1 mA versus 5.5 mA) are prioritized over maximum slew rate performance.

Frequently Asked Questions (FAQ)

Q: Can OPA690ID be used as a direct replacement for OPA690IDG4?

A: Yes. The OPA690ID is electrically and mechanically identical to the OPA690IDG4. Both devices share the same slew rate (1800V/µs), gain bandwidth product (300 MHz), -3dB bandwidth (500 MHz), input bias current (3 µA), input offset voltage (1 mV), supply current (5.5 mA), output current (190 mA), supply voltage range (5V to 12V), operating temperature range (-40°C to 85°C), and 8-SOIC package. The OPA690ID is the active production equivalent and requires no circuit modifications.

Q: What are the key differences between OPA690ID and AD8038ARZ?

A: Both devices are voltage feedback amplifiers in 8-SOIC packages with identical operating temperature ranges and overlapping supply voltage ranges. The OPA690ID provides higher slew rate (1800V/µs versus 425V/µs), higher -3dB bandwidth (500 MHz versus 350 MHz), and higher output current capability (190 mA versus unspecified). The AD8038ARZ provides lower input bias current (400 nA versus 3 µA), lower input offset voltage (500 µV versus 1 mV), lower supply current (1 mA versus 5.5 mA), and superior moisture sensitivity rating (MSL 1 versus MSL 2). Selection depends on application requirements for speed versus precision and power consumption.

Q: Are all substitute parts pin-compatible with OPA690IDG4?

A: Yes. Both OPA690ID and AD8038ARZ are housed in 8-SOIC packages with identical physical dimensions (0.154" width, 3.90mm width). Both are surface mount devices with the same pin configuration as the OPA690IDG4. No PCB layout modifications are required for substitution.

Q: Do the substitute parts meet the same compliance requirements?

A: Yes. OPA690ID and AD8038ARZ are both ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Both devices meet the same regulatory and environmental compliance standards as the OPA690IDG4.

Q: Which substitute should be selected for high-speed applications?

A: The OPA690ID is the appropriate selection for applications requiring maximum slew rate and bandwidth performance. It maintains the OPA690IDG4 specifications of 1800V/µs slew rate and 500 MHz -3dB bandwidth. The AD8038ARZ, with 425V/µs slew rate and 350 MHz bandwidth, is suitable for applications where lower input bias current and reduced power consumption are prioritized over maximum speed.

Q: What is the inventory status of substitute parts?

A: OPA690ID is available with 1865 pieces in stock. AD8038ARZ is available with 1430 pieces in stock. Both devices are active production items with established supply chains.