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ISL28276FBZ Equivalent & Substitute Parts
Part Overview
The ISL28276FBZ is a general purpose operational amplifier manufactured by Renesas Electronics Corporation, configured as a dual-channel (2 circuit) rail-to-rail output device in an 8-SOIC surface mount package. This part is classified as obsolete, making equivalent and substitute components necessary for ongoing design support and production continuity. The ISL28276FBZ operates across a supply voltage range of 2.4 V to 5.5 V with an operating temperature range of -40°C to 125°C, suitable for low-power analog signal conditioning applications.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer Part Number | ISL28276FBZ | — |
| Manufacturer | Renesas Electronics Corporation | — |
| Amplifier Type | General Purpose | — |
| Number of Circuits | 2 | — |
| Output Type | Rail-to-Rail | — |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| Voltage - Supply Span (Min) | 2.4 | V |
| Voltage - Supply Span (Max) | 5.5 | V |
| Operating Temperature | -40 to 125 | °C |
| Slew Rate | 0.13 | V/µs |
| Gain Bandwidth Product | 400 | kHz |
| Current - Input Bias | 500 | pA |
| Voltage - Input Offset | 20 | µV |
| Current - Supply | 55 (x2 Channels) | µA |
| Current - Output / Channel | 31 | mA |
| Product Status | Obsolete | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | — |
Substitute Part Grouping Explanation
Substitution of the ISL28276FBZ is determined by the following critical parameters:
Primary Substitution Criteria:
- Dual-channel (2 circuit) configuration
- Rail-to-rail output capability
- 8-SOIC surface mount package (0.154", 3.90mm width)
- Supply voltage range compatibility (minimum 2.4 V to maximum 5.5 V)
- Operating temperature range (-40°C to 125°C)
- General purpose amplifier classification
Secondary Compatibility Parameters:
- Slew rate (0.13 V/µs baseline)
- Gain bandwidth product (400 kHz baseline)
- Input bias current (500 pA baseline)
- Input offset voltage (20 µV baseline)
- Supply current per channel (55 µA baseline)
- Output current per channel (31 mA baseline)
Substitute parts are grouped into two categories:
Category A: Direct Functional Equivalents — Parts maintaining general purpose amplifier classification with comparable electrical performance within the same package footprint and supply voltage range.
Category B: Performance-Enhanced Alternatives — Parts with superior electrical characteristics (higher slew rate, higher gain bandwidth product, lower supply current) that maintain package compatibility and supply voltage overlap, suitable for applications requiring enhanced performance margins.
Parameter Comparison
| Parameter | ISL28276FBZ | LMV932Q1MA/NOPB | LMV932Q1MAX/NOPB | MAX4471ESA+ | MAX4471ESA+T | NCS20032DR2G | NCV20032DR2G | LMR932F-GE2 |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | Renesas | Texas Instruments | Texas Instruments | Analog Devices/Maxim | Analog Devices/Maxim | onsemi | onsemi | Rohm |
| Amplifier Type | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose |
| Number of Circuits | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Output Type | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail |
| Package / Case | 8-SOIC (0.154", 3.90mm) | 8-SOIC (0.154", 3.90mm) | 8-SOIC (0.154", 3.90mm) | 8-SOIC (0.154", 3.90mm) | 8-SOIC (0.154", 3.90mm) | 8-SOIC (0.154", 3.90mm) | 8-SOIC (0.154", 3.90mm) | 8-SOIC (0.173", 4.40mm) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Voltage - Supply Span (Min) | 2.4 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.7 V | 1.7 V | 1.8 V |
| Voltage - Supply Span (Max) | 5.5 V | 5.5 V | 5.5 V | 5.5 V | 5.5 V | 5.5 V | 5.5 V | 5.0 V |
| Operating Temperature | -40 to 125°C | -40 to 125°C | -40 to 125°C | -40 to 85°C | -40 to 85°C | -40 to 125°C | -40 to 125°C | -40 to 85°C |
| Slew Rate (V/µs) | 0.13 | 0.42 | 0.42 | 0.002 | 0.002 | 8 | 8 | 0.35 |
| Gain Bandwidth Product (kHz) | 400 | 1500 | 1500 | 9 | 9 | 7000 | 7000 | 1400 |
| Current - Input Bias (pA) | 500 | 14 | 14 | 200 | 200 | 1 | 1 | 5000 |
| Voltage - Input Offset (µV) | 20 | 1000 | 1000 | 500 | 500 | 500 | 500 | 1000 |
| Current - Supply (µA) | 55 (x2) | 116 (x2) | 116 (x2) | 0.75 (x2) | 0.75 (x2) | 275 (x2) | 275 (x2) | 140 |
| Current - Output / Channel (mA) | 31 | 100 | 100 | 36 | 36 | 96 | 14 | 90 |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
Primary Substitutes for Direct Replacement:
The LMV932Q1MA/NOPB and LMV932Q1MAX/NOPB (Texas Instruments) are the most suitable direct replacements for the ISL28276FBZ. Both parts maintain identical package geometry (8-SOIC, 0.154", 3.90mm width), dual-channel general purpose amplifier configuration, and full supply voltage compatibility (1.8 V to 5.5 V). These parts are active products with ROHS3 compliance and superior moisture sensitivity rating (MSL 1 vs. MSL 3). The LMV932 series provides enhanced slew rate (0.42 V/µs vs. 0.13 V/µs) and higher gain bandwidth product (1.5 MHz vs. 400 kHz), delivering improved performance margins. Both variants support the extended operating temperature range (-40°C to 125°C) matching the original specification. The LMV932Q1MA/NOPB is supplied in tube packaging, while the LMV932Q1MAX/NOPB is supplied in tape and reel format. Both carry automotive-grade qualification (AEC-Q100).
Secondary Substitutes for Performance-Enhanced Applications:
The NCS20032DR2G and NCV20032DR2G (onsemi) offer significantly enhanced electrical performance with 8 V/µs slew rate and 7 MHz gain bandwidth product, suitable for applications requiring faster signal response. Both maintain 8-SOIC package compatibility (0.154", 3.90mm width), dual-channel configuration, and extended temperature range (-40°C to 125°C). Supply voltage compatibility spans 1.7 V to 5.5 V. These parts are active products with MSL 1 rating. The NCS20032DR2G provides 96 mA output current per channel, while the NCV20032DR2G provides 14 mA per channel. Selection between these variants depends on output current requirements.
Alternative for Ultra-Low Supply Current Applications:
The MAX4471ESA+ and MAX4471ESA+T (Analog Devices Inc./Maxim Integrated) deliver ultra-low supply current (0.75 µA per channel) with 8-SOIC package compatibility (0.154", 3.90mm width). These parts are suitable for battery-powered applications where supply current minimization is critical. Operating temperature range is limited to -40°C to 85°C, and maximum supply voltage is 5.5 V. Both are active products with MSL 1 rating. The MAX4471ESA+ is supplied in tube packaging, while the MAX4471ESA+T is supplied in tape and reel format.
Package Consideration:
The LMR932F-GE2 (Rohm Semiconductor) provides general purpose amplifier functionality with enhanced slew rate (0.35 V/µs) and gain bandwidth product (1.4 MHz). However, this part uses an 8-SOIC package with 0.173" (4.40mm) width, which differs from the original 0.154" (3.90mm) width. This package size difference may require PCB layout verification before implementation. Maximum supply voltage is limited to 5.0 V. Operating temperature range is -40°C to 85°C. This part is active with MSL 1 rating.
Frequently Asked Questions (FAQ)
Q: Can the LMV932Q1MA/NOPB directly replace the ISL28276FBZ without PCB modifications?
A: Yes. The LMV932Q1MA/NOPB maintains identical 8-SOIC package dimensions (0.154", 3.90mm width), pin configuration for dual-channel operation, and supply voltage range compatibility. No PCB layout changes are required. The part is pin-compatible and functionally equivalent.
Q: What is the key difference between LMV932Q1MA/NOPB and LMV932Q1MAX/NOPB?
A: Both parts are electrically identical. The primary difference is packaging format: LMV932Q1MA/NOPB is supplied in tube packaging, while LMV932Q1MAX/NOPB is supplied in tape and reel format. Selection depends on production volume and assembly line requirements.
Q: Why does the ISL28276FBZ have MSL 3 rating while substitute parts have MSL 1?
A: MSL (Moisture Sensitivity Level) rating indicates the maximum time a component can be exposed to moisture before soldering. MSL 3 allows 168 hours of exposure, while MSL 1 allows unlimited exposure. Substitute parts with MSL 1 rating provide superior moisture tolerance and reduced risk of moisture-induced failures during storage and assembly.
Q: Can the NCS20032DR2G be used in applications requiring the full 2.4 V minimum supply voltage?
A: The NCS20032DR2G operates at a minimum supply voltage of 1.7 V, which is lower than the ISL28276FBZ specification of 2.4 V. This part is compatible with applications operating at 2.4 V and above. For applications requiring operation below 1.7 V, the NCS20032DR2G is not suitable.
Q: What is the significance of the 0.173" (4.40mm) package width difference in the LMR932F-GE2?
A: The LMR932F-GE2 uses a wider 8-SOIC package (0.173" vs. 0.154") compared to the ISL28276FBZ. This dimensional difference may affect PCB footprint compatibility. PCB layout verification is required before implementation to confirm that the wider package does not create spacing conflicts with adjacent components or trace routing.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All substitute parts listed are ROHS3 compliant, matching the compliance status of the ISL28276FBZ. All parts are also REACH unaffected and carry EAR99 ECCN classification.
Q: Which substitute part is best for battery-powered applications?
A: The MAX4471ESA+ and MAX4471ESA+T deliver the lowest supply current at 0.75 µA per channel, making them optimal for battery-powered applications where power consumption minimization is critical. However, these parts are limited to -40°C to 85°C operating temperature range and 9 kHz gain bandwidth product, which may not suit all applications.
Q: Can substitute parts operate at the full -40°C to 125°C temperature range of the ISL28276FBZ?
A: The LMV932Q1MA/NOPB, LMV932Q1MAX/NOPB, NCS20032DR2G, and NCV20032DR2G all support the full -40°C to 125°C operating temperature range. The MAX4471ESA+, MAX4471ESA+T, and LMR932F-GE2 are limited to -40°C to 85°C. Application temperature requirements determine which parts are suitable.
Q: What is the automotive qualification status of substitute parts?
A: The LMV932Q1MA/NOPB and LMV932Q1MAX/NOPB carry automotive-grade qualification (AEC-Q100). Other substitute parts do not carry automotive qualification. For automotive applications, the LMV932 variants are the recommended choice.
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