FHP3232IM8X Equivalent & Substitute Parts

Part Overview

The FHP3232IM8X is a voltage feedback amplifier integrated circuit manufactured by onsemi, featuring two circuits in an 8-SOIC surface mount package. This device is classified as obsolete, which necessitates identification of active equivalent and substitute components for ongoing design support and production requirements. The FHP3232IM8X delivers rail-to-rail output capability with a slew rate of 400V/µs and gain bandwidth product of 260 MHz, making it suitable for high-speed signal conditioning applications.

Key Parameters

Parameter	Value	Unit
Amplifier Type	Voltage Feedback	—
Number of Circuits	2	—
Output Type	Rail-to-Rail	—
Slew Rate	400	V/µs
Gain Bandwidth Product	260	MHz
-3dB Bandwidth	85	MHz
Current - Input Bias	1.8	µA
Voltage - Input Offset	1	mV
Current - Supply (per Channel)	2.5	mA
Current - Output / Channel	100	mA
Voltage - Supply Span (Min)	2.7	V
Voltage - Supply Span (Max)	12	V
Operating Temperature Range	-40 to 85	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the FHP3232IM8X is determined by strict alignment of electrical and mechanical parameters. The critical substitution criteria are:

Primary Matching Parameters:

Amplifier Type: Voltage Feedback
Number of Circuits: 2
Output Type: Rail-to-Rail
Package / Case: 8-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Supply Voltage Range: Minimum 2.7V, Maximum 12V (or higher)
Operating Temperature Range: -40°C to 85°C (or extended)

Secondary Performance Parameters:

Slew Rate: 400V/µs (baseline; substitutes may vary)
Gain Bandwidth Product: 260 MHz (baseline; substitutes may vary)
-3dB Bandwidth: 85 MHz (baseline; substitutes may vary)
Current - Input Bias: 1.8 µA (baseline; substitutes may vary)
Voltage - Input Offset: 1 mV (baseline; substitutes may vary)
Current - Supply: 2.5mA per channel (baseline; substitutes may vary)
Current - Output / Channel: 100 mA (baseline; substitutes may vary)

Substitute parts are grouped into two categories based on performance alignment:

Category A - Direct Performance Equivalents: Parts with comparable slew rate, bandwidth, and output current specifications. These include AD8032 variants (AD8032ARZ, AD8032ARZ-REEL, AD8032ARZ-REEL7, AD8032BRZ, AD8032BRZ-REEL, AD8032BRZ-REEL7) from Analog Devices Inc. These devices maintain the same package, circuit count, and output type while operating within the specified supply voltage and temperature ranges.

Category B - Enhanced Performance Alternatives: Parts with superior performance characteristics in slew rate, bandwidth, or output current. These include LMH6619QMAK/NOPB, LMH6619QMAKX/NOPB (Texas Instruments), LMH6643MA/NOPB (Texas Instruments), and MAX4017ESA+ (Analog Devices Inc./Maxim Integrated). These devices exceed the baseline specifications in one or more performance parameters while maintaining package compatibility and supply voltage requirements.

Parameter Comparison

Parameter	FHP3232IM8X	AD8032ARZ	AD8032BRZ	LMH6619QMAK/NOPB	LMH6643MA/NOPB	MAX4017ESA+
Manufacturer	onsemi	Analog Devices Inc.	Analog Devices Inc.	Texas Instruments	Texas Instruments	Analog Devices Inc./Maxim Integrated
Product Status	Obsolete	Active	Active	Active	Active	Active
Amplifier Type	Voltage Feedback	Voltage Feedback	Voltage Feedback	Voltage Feedback	Voltage Feedback	Buffer, Voltage Feedback
Number of Circuits	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
Slew Rate (V/µs)	400	35	35	57	135	600
Gain Bandwidth Product (MHz)	260	—	—	140	—	140
-3dB Bandwidth (MHz)	85	80	80	140	130	200
Current - Input Bias (µA)	1.8	0.45	0.45	1.5	1.6	5.4
Voltage - Input Offset (mV)	1	1	0.5	0.1	1	4
Current - Supply per Channel (mA)	2.5	0.9	0.9	1.3	2.7	5.5
Current - Output / Channel (mA)	100	15	15	35	75	120
Voltage - Supply Span (Min) (V)	2.7	2.7	2.7	2.7	2.7	3.15
Voltage - Supply Span (Max) (V)	12	12	12	11	12.8	11
Operating Temperature Range (°C)	-40 to 85	-40 to 85	-40 to 85	-40 to 125	-40 to 85	-40 to 85
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Direct Replacement with Minimal Performance Trade-off:

The AD8032 series (AD8032ARZ, AD8032ARZ-REEL, AD8032ARZ-REEL7, AD8032BRZ, AD8032BRZ-REEL, AD8032BRZ-REEL7) from Analog Devices Inc. provides the most straightforward substitution path. All variants are active products with ROHS3 compliance. The AD8032ARZ and AD8032ARZ-REEL variants are available in high inventory quantities (12,665 and 100,516 units respectively). The AD8032BRZ variants offer improved input offset voltage specification (500 µV versus 1 mV), with AD8032BRZ-REEL7 providing the highest inventory availability (100,200 units). These parts maintain identical package geometry, circuit count, and supply voltage compatibility while operating within the specified temperature range.

For Enhanced Performance Requirements:

When application requirements demand higher slew rate or bandwidth performance, the LMH6643MA/NOPB (Texas Instruments) delivers 135V/µs slew rate and 130 MHz bandwidth with 75 mA output current per channel. The LMH6619QMAK/NOPB and LMH6619QMAKX/NOPB (Texas Instruments) provide 57V/µs slew rate and 140 MHz bandwidth with extended operating temperature to 125°C and AEC-Q100 automotive qualification. The MAX4017ESA+ (Analog Devices Inc./Maxim Integrated) offers the highest performance with 600V/µs slew rate and 200 MHz bandwidth, though with higher supply current and minimum supply voltage requirement of 3.15V.

Compliance and Availability Considerations:

All recommended substitute parts carry ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the environmental requirements of the FHP3232IM8X. Inventory availability varies significantly across variants, with AD8032BRZ-REEL7 and AD8032ARZ-REEL offering the highest stock levels for production volume requirements. The AD8032 series represents the lowest-risk substitution due to direct performance alignment and active product status across multiple packaging options.

Frequently Asked Questions (FAQ)

Q: Can the AD8032 series directly replace the FHP3232IM8X without circuit modification?

A: The AD8032 series maintains identical package geometry (8-SOIC), circuit count (2), output type (rail-to-rail), and supply voltage range (2.7V to 12V). Pin-to-pin compatibility exists for standard voltage feedback amplifier configurations. However, the AD8032 series exhibits lower slew rate (35V/µs versus 400V/µs) and reduced output current capability (15 mA versus 100 mA per channel). Circuit validation is required for applications where these performance differences impact system operation.

Q: What is the difference between AD8032ARZ and AD8032BRZ variants?

A: Both variants share identical electrical performance specifications except for input offset voltage. The AD8032ARZ specifies 1 mV input offset voltage, while AD8032BRZ specifies 500 µV. The "B" grade designation indicates tighter offset voltage tolerance. Selection depends on application sensitivity to input offset drift and temperature variation.

Q: Why do AD8032 variants have different packaging designations (REEL, REEL7)?

A: The packaging designations indicate different tape and reel configurations for automated assembly. AD8032ARZ is supplied in tube packaging. AD8032ARZ-REEL and AD8032ARZ-REEL7 are supplied on cut tape and Digi-Reel formats with different reel specifications. All variants are electrically identical; selection is based on manufacturing process requirements and inventory availability.

Q: Is the LMH6619QMAK/NOPB suitable for non-automotive applications?

A: Yes. The LMH6619QMAK/NOPB is qualified to AEC-Q100 automotive standards and carries automotive-grade designation, but this qualification does not restrict use in non-automotive applications. The extended operating temperature range (-40°C to 125°C) and enhanced reliability testing provide additional margin for demanding industrial and commercial applications.

Q: What are the key performance trade-offs when selecting MAX4017ESA+ as a substitute?

A: The MAX4017ESA+ delivers superior slew rate (600V/µs) and bandwidth (200 MHz) performance. However, it requires higher minimum supply voltage (3.15V versus 2.7V), draws higher supply current (5.5 mA per channel versus 2.5 mA), and exhibits higher input offset voltage (4 mV versus 1 mV). Selection is appropriate for high-speed applications where power consumption and offset voltage are not critical constraints.

Q: Are all substitute parts ROHS3 compliant?

A: All recommended substitute parts carry ROHS3 compliance certification. The FHP3232IM8X does not specify RoHS status in the provided data. Verification of RoHS compliance requirements for the original design is recommended before final part selection.

Q: What is the significance of MSL 1 (Unlimited) moisture sensitivity rating?

A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity limitations and does not require special moisture control during storage, handling, or assembly. This rating applies to all substitute parts and the original FHP3232IM8X, eliminating moisture-related risk factors in component substitution.

Q: Can the LMH6643MA/NOPB be used in applications requiring the full 100 mA output current of the FHP3232IM8X?

A: The LMH6643MA/NOPB specifies 75 mA maximum output current per channel, which is 25% lower than the FHP3232IM8X specification of 100 mA. Applications requiring the full 100 mA output current must either use the FHP3232IM8X (if available through inventory channels) or implement external output buffering with the LMH6643MA/NOPB.

Q: What inventory considerations apply to FHP3232IM8X substitution?

A: The FHP3232IM8X is classified as obsolete with 2,730 units reported in stock. For long-term production support, transition to active substitute parts is necessary. The AD8032BRZ-REEL7 variant offers the highest inventory availability (100,200 units), followed by AD8032ARZ-REEL (100,516 units), making these variants optimal for volume production planning.

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