ISL28107FUZ Equivalent & Substitute Parts

Part Overview

The ISL28107FUZ is a general purpose operational amplifier manufactured by Renesas Electronics Corporation, housed in an 8-MSOP surface mount package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The ISL28107FUZ operates across a wide supply voltage range of 4.5V to 40V with a single amplifier circuit configuration, suitable for general signal conditioning and amplification applications in industrial and consumer electronics.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	1	—
Slew Rate	0.32	V/µs
Gain Bandwidth Product	1	MHz
Current - Input Bias	15	pA
Voltage - Input Offset	5	µV
Current - Supply	210	µA
Current - Output / Channel	40	mA
Voltage - Supply Span (Min)	4.5	V
Voltage - Supply Span (Max)	40	V
Operating Temperature	-40 to 125	°C
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	3 (168 Hours)	—

Substitute Part Grouping Explanation

Substitution of the ISL28107FUZ is determined by the following critical parameters:

Primary Substitution Criteria:

Amplifier Type: General Purpose
Number of Circuits: 1
Package / Case: 8-MSOP or compatible 8-pin surface mount
Voltage - Supply Span: Minimum 4.5V, Maximum ≥40V
Operating Temperature Range: Must encompass -40°C to 125°C or be compatible with application requirements
Mounting Type: Surface Mount

Secondary Compatibility Parameters:

Slew Rate: 0.32V/µs or higher
Gain Bandwidth Product: 1 MHz or higher
Current - Input Bias: 15 pA or lower
Voltage - Input Offset: 5 µV or lower
Current - Supply: 210µA or lower
Current - Output / Channel: 40 mA or higher

Substitute parts are grouped into two categories: Direct Pin-Compatible Substitutes (identical package and pinout) and Functional Equivalents (different amplifier topology but compatible electrical performance for general purpose applications).

Parameter Comparison

Parameter	ISL28107FUZ	OP1177ARMZ	OP1177ARMZ-R7	OP1177ARMZ-REEL	ISL28207FBZ
Manufacturer	Renesas	Analog Devices	Analog Devices	Analog Devices	Renesas
Amplifier Type	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose
Number of Circuits	1	1	1	1	2
Slew Rate (V/µs)	0.32	0.7	0.7	0.7	0.32
Gain Bandwidth Product (MHz)	1	1.3	1.3	1.3	1
Current - Input Bias (pA)	15	500	500	500	15
Voltage - Input Offset (µV)	5	15	15	15	5
Current - Supply (µA)	210	400	400	400	420 (210 x2)
Current - Output / Channel (mA)	40	10	10	10	40
Voltage - Supply Span Min (V)	4.5	5	5	5	4.5
Voltage - Supply Span Max (V)	40	36	36	36	40
Operating Temperature (°C)	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125
Package / Case	8-MSOP	8-MSOP	8-MSOP	8-MSOP	8-SOIC
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	3 (168 Hours)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	2 (1 Year)

Engineering Selection Recommendations

Recommended Primary Substitutes (Pin-Compatible, 8-MSOP Package):

OP1177ARMZ-R7 (Analog Devices Inc.) — Active product status with highest inventory availability (45,200 pcs). Identical 8-MSOP package and pinout. Exceeds ISL28107FUZ performance in slew rate (0.7V/µs vs. 0.32V/µs) and gain bandwidth product (1.3 MHz vs. 1 MHz). Supply voltage range 5V to 36V is compatible with most applications requiring 4.5V to 40V operation, with the exception of applications requiring operation below 5V or above 36V. MSL rating of 1 (Unlimited) provides superior moisture handling compared to MSL 3. Cut Tape & Digi-Reel packaging supports both prototype and production volumes.
OP1177ARMZ-REEL (Analog Devices Inc.) — Active product status with 17,400 pcs inventory. Identical electrical and package specifications to OP1177ARMZ-R7. Supplied in Cut Tape & Digi-Reel format for high-volume manufacturing.
OP1177ARMZ (Analog Devices Inc.) — Active product status with 26,271 pcs inventory. Identical electrical specifications to OP1177ARMZ-R7 and OP1177ARMZ-REEL. Supplied in Tube packaging for prototype and small-volume applications.

Secondary Substitute (Different Package, Dual-Circuit Configuration):

ISL28207FBZ (Renesas Electronics Corporation) — Active product status with 1,900 pcs inventory. Maintains identical electrical performance to ISL28107FUZ (slew rate 0.32V/µs, gain bandwidth 1 MHz, input bias 15 pA, input offset 5 µV). Dual-circuit configuration (2 amplifiers) in 8-SOIC package. Supply voltage range 4.5V to 40V matches ISL28107FUZ exactly. MSL rating of 2 (1 Year) is superior to ISL28107FUZ. Suitable for applications where dual amplifier functionality is required or where 8-SOIC package is acceptable.

Functional Equivalents (Different Amplifier Topology):

THS4081IDGN (Texas Instruments) — Active product status with 2,885 pcs inventory. Voltage feedback amplifier topology with significantly higher performance: slew rate 230V/µs, -3dB bandwidth 175 MHz. Operating temperature range -40°C to 85°C covers ISL28107FUZ requirements. Supply voltage range 10V to 30V is narrower than ISL28107FUZ. 8-HVSSOP package with exposed pad. Suitable for high-speed applications where ISL28107FUZ performance is insufficient.
THS3001HVIDGN (Texas Instruments) — Last Time Buy status with 1,163 pcs inventory. Current feedback amplifier topology with extreme performance: slew rate 6500V/µs, gain bandwidth 1.75 GHz, -3dB bandwidth 420 MHz. Operating temperature range -40°C to 85°C. Supply voltage range 9V to 37V. 8-HVSSOP package. Suitable only for applications requiring ultra-high-speed signal processing.

Compliance and Regulatory Status:

All recommended substitutes maintain ROHS3 compliance and REACH Unaffected status, matching the ISL28107FUZ regulatory profile. All parts are classified under HTSUS 8542.33.0001 and ECCN EAR99, consistent with the original part.

Frequently Asked Questions (FAQ)

Q1: Can OP1177ARMZ-R7 directly replace ISL28107FUZ in existing PCB designs?

A: Yes, for applications operating within the 5V to 36V supply range. The OP1177ARMZ-R7 is pin-compatible with identical 8-MSOP package and pinout. However, applications requiring operation below 5V supply voltage or above 36V supply voltage cannot use this substitute. Verify your application's supply voltage requirements before substitution.

Q2: What is the difference between OP1177ARMZ, OP1177ARMZ-R7, and OP1177ARMZ-REEL?

A: All three variants are electrically identical with identical 8-MSOP package specifications. The differences are in packaging format and moisture sensitivity level handling: OP1177ARMZ is supplied in Tube packaging; OP1177ARMZ-R7 and OP1177ARMZ-REEL are supplied in Cut Tape & Digi-Reel format. All three have MSL rating of 1 (Unlimited). Selection depends on your procurement and assembly process requirements.

Q3: Why is ISL28207FBZ listed as a substitute if it has 2 circuits instead of 1?

A: ISL28207FBZ maintains identical electrical performance parameters to ISL28107FUZ (slew rate, gain bandwidth, input bias, input offset, supply voltage range). The dual-circuit configuration allows it to serve as a substitute in applications where two independent amplifier channels are beneficial or where single-channel operation is acceptable. The 8-SOIC package differs from 8-MSOP, requiring PCB layout modification.

Q4: Can THS4081IDGN replace ISL28107FUZ in all applications?

A: No. While THS4081IDGN is pin-compatible in 8-HVSSOP package, its supply voltage range (10V to 30V) is narrower than ISL28107FUZ (4.5V to 40V). Applications requiring operation below 10V or above 30V cannot use this substitute. Additionally, THS4081IDGN is a voltage feedback amplifier with significantly higher performance characteristics, which may introduce different circuit behavior in existing designs. Functional verification is required.

Q5: What does "Last Time Buy" product status mean for THS3001 variants?

A: Last Time Buy status indicates the manufacturer has announced end-of-life for this product. Existing inventory is available for purchase, but no future production is planned. These parts should be considered only for applications where long-term supply is not critical or where design migration to active products is planned.

Q6: Is the ISL28107FUZ obsolete, and what are my options?

A: Yes, ISL28107FUZ is classified as obsolete. Recommended options are: (1) Migrate to active OP1177ARMZ-R7 or OP1177ARMZ-REEL for pin-compatible replacement with superior performance; (2) Use ISL28207FBZ if dual-channel functionality is acceptable; (3) Evaluate THS4081IDGN or THS3001 variants if higher performance is required. All recommended substitutes are active products with ongoing manufacturer support.

Q7: What is the significance of MSL (Moisture Sensitivity Level) rating differences?

A: MSL rating indicates how long a component can be exposed to ambient moisture before soldering. ISL28107FUZ has MSL 3 (168 hours maximum); OP1177 variants have MSL 1 (unlimited). Lower MSL numbers provide greater flexibility in storage and handling. If your manufacturing process involves extended storage or high-humidity environments, MSL 1 rated parts (OP1177 variants) are preferable.

Q8: Can I use THS3001HVIDGN as a direct replacement for general purpose amplification?

A: Not recommended for general purpose applications. THS3001HVIDGN is a current feedback amplifier optimized for ultra-high-speed signal processing (6500V/µs slew rate, 1.75 GHz bandwidth). Using this part in general purpose applications introduces unnecessary complexity, cost, and potential stability issues. Reserve THS3001HVIDGN for applications explicitly requiring high-speed performance.

Q9: What are the key electrical differences between ISL28107FUZ and OP1177ARMZ-R7?

A: OP1177ARMZ-R7 provides superior performance: slew rate 0.7V/µs (vs. 0.32V/µs), gain bandwidth 1.3 MHz (vs. 1 MHz). However, OP1177ARMZ-R7 has higher input bias current (500 pA vs. 15 pA) and higher input offset voltage (15 µV vs. 5 µV). For precision low-bias applications, ISL28107FUZ specifications are superior. For general purpose applications with moderate performance requirements, OP1177ARMZ-R7 is acceptable.

Q10: Are all substitute parts RoHS3 compliant?

A: Yes. All recommended substitutes (OP1177 variants, ISL28207FBZ, THS4081IDGN, THS3001 variants) are ROHS3 compliant and REACH Unaffected, matching ISL28107FUZ regulatory status. All parts are classified under HTSUS 8542.33.0001 and ECCN EAR99.

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