OPA695IDRG4 Equivalent & Substitute Parts

Part Overview

The OPA695IDRG4 is a Current Feedback Amplifier (CFA) manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This device is classified as obsolete, making identification of functionally equivalent alternatives essential for design continuity and procurement planning. The OPA695IDRG4 delivers high-speed amplification with a slew rate of 4300V/µs and -3dB bandwidth of 1.7 GHz, suitable for applications requiring broadband signal processing. Due to its obsolete status, active production alternatives or compatible substitutes must be evaluated based on electrical performance and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Amplifier Type	Current Feedback	—
Number of Circuits	1	—
Slew Rate	4300	V/µs
-3dB Bandwidth	1.7	GHz
Current - Input Bias	20	µA
Voltage - Input Offset	300	µV
Current - Supply	12.9	mA
Current - Output / Channel	120	mA
Voltage - Supply Span (Min)	5	V
Voltage - Supply Span (Max)	12	V
Operating Temperature	-40 to 85	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	2 (1 Year)	—

Substitute Part Grouping Explanation

Substitution of the OPA695IDRG4 is determined by strict alignment of electrical and mechanical parameters within the Current Feedback Amplifier category. The following criteria establish valid substitution relationships:

Primary Substitution Criteria:

Amplifier Type: Current Feedback (mandatory)
Package / Case: 8-SOIC (0.154", 3.90mm Width) (mandatory)
Mounting Type: Surface Mount (mandatory)
Operating Temperature Range: -40°C to 85°C (mandatory)
Voltage Supply Span: Minimum 5V, Maximum 12V (mandatory overlap required)

Secondary Performance Parameters:

Slew Rate: 4300V/µs (OPA695IDRG4 baseline)
-3dB Bandwidth: 1.7 GHz (OPA695IDRG4 baseline)
Current - Supply: 12.9mA (OPA695IDRG4 baseline)
Current - Output / Channel: 120mA (OPA695IDRG4 baseline)

Substitutes are grouped into two categories: Direct Equivalents (matching all primary criteria with comparable performance) and Functional Alternatives (matching all primary criteria with performance variations that may require circuit re-evaluation).

Parameter Comparison

Parameter	OPA695IDRG4	OPA695IDR	EL5160ISZ	EL5160ISZ-T7A	EL5162ISZ-T7A	MAX4223ESA+	MAX4223ESA+T
Manufacturer	Texas Instruments	Texas Instruments	Renesas Electronics	Renesas Electronics	Renesas Electronics	Analog Devices Inc./Maxim	Analog Devices Inc./Maxim
Product Status	Obsolete	Active	Obsolete	Obsolete	Obsolete	Active	Active
Amplifier Type	Current Feedback	Current Feedback	Current Feedback	Current Feedback	Current Feedback	Current Feedback	Current Feedback
Number of Circuits	1	1	1	1	1	1	1
Slew Rate (V/µs)	4300	4300	1700	1700	4000	1100	1100
-3dB Bandwidth (GHz)	1.7	1.7	0.2	0.2	0.5	1.0	1.0
Current - Input Bias (µA)	20	20	5	—	—	4	4
Voltage - Input Offset (µV/mV)	300 µV	300 µV	1.6 mV	1.6 mV	1.5 mV	500 µV	500 µV
Current - Supply (mA/µA)	12.9 mA	12.9 mA	0.75 mA	0.8 mA	1.5 mA	6 mA	6 mA
Current - Output / Channel (mA)	120	120	140	70	100	—	80
Voltage - Supply Span (Min/Max)	5–12 V	5–12 V	5–10 V	5–10 V	5–12 V	5.7–11 V	5.7–11 V
Operating Temperature	-40 to 85°C	-40 to 85°C	-40 to 85°C	-40 to 85°C	-40 to 85°C	-40 to 85°C	-40 to 85°C
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	2 (1 Year)	2 (1 Year)	1 (Unlimited)	1 (Unlimited)	3 (168 Hours)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Equivalent (Recommended Primary Substitute):

OPA695IDR — Texas Instruments, Active Status

The OPA695IDR is the direct functional equivalent of the OPA695IDRG4. Both devices share identical electrical specifications: 4300V/µs slew rate, 1.7 GHz bandwidth, 12.9mA supply current, and 120mA output current. The OPA695IDR is currently in active production status, ensuring long-term availability and supply chain stability. Both parts are ROHS3 compliant and operate across the -40°C to 85°C temperature range. The primary distinction is packaging format: OPA695IDR is supplied in Cut Tape (CT) & Digi-Reel® format, whereas OPA695IDRG4 uses standard packaging. Electrical performance and mechanical compatibility (8-SOIC package) are identical. This substitute requires no circuit modifications.

Functional Alternatives (Performance Trade-offs Required):

EL5162ISZ-T7A — Renesas Electronics Corporation, Obsolete Status

The EL5162ISZ-T7A maintains 8-SOIC package compatibility and operates within the 5–12V supply range. It delivers 4000V/µs slew rate (93% of OPA695IDRG4 performance) and 500 MHz bandwidth (29% of OPA695IDRG4 performance). Supply current is significantly lower at 1.5mA versus 12.9mA. Output current capability is 100mA versus 120mA. This substitute is suitable for applications where bandwidth requirements are below 500 MHz and lower power consumption is beneficial. Circuit re-evaluation is required to confirm bandwidth adequacy.

MAX4223ESA+ / MAX4223ESA+T — Analog Devices Inc./Maxim Integrated, Active Status

Both MAX4223 variants are in active production. They maintain 8-SOIC package compatibility and -40°C to 85°C operating range. Slew rate is 1100V/µs (26% of OPA695IDRG4) and bandwidth is 1.0 GHz (59% of OPA695IDRG4). Supply current is 6mA (47% of OPA695IDRG4). Supply voltage range is 5.7–11V, which overlaps with OPA695IDRG4 but with a higher minimum threshold. These substitutes are appropriate for applications requiring lower power consumption and moderate bandwidth. Circuit re-evaluation is required to confirm performance adequacy.

EL5160ISZ / EL5160ISZ-T7A — Renesas Electronics Corporation, Obsolete Status

Both EL5160 variants are obsolete. They deliver significantly reduced performance: 1700V/µs slew rate (40% of OPA695IDRG4) and 200 MHz bandwidth (12% of OPA695IDRG4). Supply voltage range is limited to 5–10V. These substitutes are not recommended for direct replacement of OPA695IDRG4 applications requiring high-speed performance.

Compliance & Certification:

All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the regulatory status of OPA695IDRG4. MSL ratings vary: OPA695IDR and MAX4223 variants carry MSL 1 (Unlimited), providing superior moisture protection compared to OPA695IDRG4 (MSL 2, 1 Year).

Frequently Asked Questions (FAQ)

Q1: Can OPA695IDR directly replace OPA695IDRG4 without circuit modifications?

A: Yes. The OPA695IDR is electrically identical to OPA695IDRG4 across all specified parameters: slew rate (4300V/µs), bandwidth (1.7 GHz), supply current (12.9mA), output current (120mA), and operating temperature range (-40°C to 85°C). Both use 8-SOIC surface mount packaging. The only difference is packaging format (Cut Tape & Digi-Reel® versus standard). No circuit modifications are required. OPA695IDR is the recommended substitute due to its active production status.

Q2: Why is OPA695IDRG4 classified as obsolete?

A: OPA695IDRG4 has reached end-of-life status with Texas Instruments. The OPA695IDR variant remains in active production and serves as the current product offering. Existing inventory of OPA695IDRG4 is available (818 pcs reported), but new production is discontinued. For new designs or long-term supply assurance, OPA695IDR is the appropriate selection.

Q3: What are the key differences between OPA695IDR and MAX4223ESA+?

A: Both are Current Feedback Amplifiers in 8-SOIC packages with active production status. OPA695IDR delivers superior performance: 4300V/µs slew rate versus 1100V/µs, and 1.7 GHz bandwidth versus 1.0 GHz. OPA695IDR requires 12.9mA supply current; MAX4223ESA+ requires 6mA. MAX4223ESA+ is suitable for power-constrained applications where bandwidth below 1.0 GHz is acceptable. OPA695IDR is required for applications demanding the full 1.7 GHz bandwidth and 4300V/µs slew rate.

Q4: Can EL5162ISZ-T7A replace OPA695IDRG4 in high-bandwidth applications?

A: No. EL5162ISZ-T7A provides only 500 MHz bandwidth compared to OPA695IDRG4's 1.7 GHz. While slew rate is comparable (4000V/µs versus 4300V/µs), the 71% reduction in bandwidth makes this substitute unsuitable for applications requiring the full 1.7 GHz performance envelope. EL5162ISZ-T7A is appropriate only for applications with bandwidth requirements below 500 MHz.

Q5: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (OPA695IDR, EL5160ISZ, EL5160ISZ-T7A, EL5162ISZ-T7A, MAX4223ESA+, MAX4223ESA+T) are ROHS3 compliant, matching the regulatory status of OPA695IDRG4. All are REACH unaffected.

Q6: What is the significance of MSL (Moisture Sensitivity Level) differences?

A: OPA695IDRG4 carries MSL 2 (1 Year), indicating moderate moisture sensitivity with a one-year shelf life under controlled conditions. OPA695IDR, MAX4223ESA+, and MAX4223ESA+T carry MSL 1 (Unlimited), providing superior moisture protection and indefinite shelf life. EL5160ISZ and EL5160ISZ-T7A carry MSL 1 (Unlimited). For applications with extended storage or high-humidity environments, MSL 1 rated parts offer superior reliability.

Q7: What supply voltage considerations apply to substitute selection?

A: OPA695IDRG4 operates across 5–12V. OPA695IDR matches this range exactly. EL5160 variants operate across 5–10V (narrower range). EL5162ISZ-T7A operates across 5–12V (matches OPA695IDRG4). MAX4223 variants operate across 5.7–11V (higher minimum, lower maximum). For designs operating at 5V or below 5.7V, verify supply voltage compatibility before substitution.

Q8: Which substitute offers the lowest power consumption?

A: EL5160ISZ-T7A offers the lowest supply current at 0.8mA, followed by EL5160ISZ at 0.75mA. However, these parts deliver significantly reduced bandwidth (200 MHz) and slew rate (1700V/µs). For applications where bandwidth below 200 MHz is acceptable, EL5160 variants provide substantial power savings. MAX4223 variants consume 6mA, offering moderate power reduction (53% lower than OPA695IDRG4) while maintaining 1.0 GHz bandwidth.

Q9: Is the 8-SOIC package footprint identical across all substitutes?

A: Yes. All substitute parts use 8-SOIC (0.154", 3.90mm Width) packaging, identical to OPA695IDRG4. PCB footprints are mechanically compatible. No layout modifications are required for package accommodation.

Q10: Which substitute is recommended for new designs?

A: OPA695IDR is the recommended substitute for new designs. It is electrically identical to OPA695IDRG4, currently in active production, ROHS3 compliant, and carries superior MSL 1 rating. It requires no circuit modifications and ensures long-term supply availability. For applications with reduced bandwidth requirements (below 1.0 GHz) and power constraints, MAX4223ESA+ or MAX4223ESA+T are acceptable alternatives with active production status.

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