FHP3430IMTC14X Equivalent & Substitute Parts

Part Overview

The FHP3430IMTC14X is a voltage feedback operational amplifier integrated circuit manufactured by onsemi, configured as a 4-circuit rail-to-rail amplifier in a 14-TSSOP surface mount package. This device is classified as obsolete, necessitating identification of active substitute components for new designs and production continuity. The part operates across a supply voltage range of 2.7 V to 12 V with an operating temperature range of -40°C to 85°C. Equivalent and substitute parts must maintain functional compatibility through matching amplifier topology, circuit count, output characteristics, and package specifications.

Key Parameters

Parameter	FHP3430IMTC14X
Amplifier Type	Voltage Feedback
Number of Circuits	4
Output Type	Rail-to-Rail
Package / Case	14-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
Slew Rate	110 V/µs
Gain Bandwidth Product	60 MHz
-3dB Bandwidth	170 MHz
Current - Input Bias	1.8 µA
Voltage - Input Offset	1 mV
Current - Supply	2.5 mA (x4 Channels)
Current - Output / Channel	100 mA
Voltage - Supply Span (Min)	2.7 V
Voltage - Supply Span (Max)	12 V
Operating Temperature	-40°C ~ 85°C
Product Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the FHP3430IMTC14X is determined by strict adherence to the following criteria:

Mandatory Matching Parameters:

Amplifier Type: Voltage Feedback
Number of Circuits: 4
Output Type: Rail-to-Rail
Package / Case: 14-TSSOP (0.173", 4.40mm Width)
Mounting Type: Surface Mount
Moisture Sensitivity Level: 1 (Unlimited)

Allowable Parameter Variations: Substitute parts may exceed the original specifications in the following parameters without compromising compatibility:

Slew Rate (higher values acceptable)
Gain Bandwidth Product (higher values acceptable)
-3dB Bandwidth (higher values acceptable)
Current - Input Bias (higher values acceptable within design margins)
Voltage - Input Offset (higher values acceptable within design margins)
Current - Supply (higher values acceptable within power budget constraints)
Current - Output / Channel (lower or higher values acceptable depending on load requirements)
Operating Temperature (extended range acceptable)

Critical Constraint:

Voltage - Supply Span must encompass or exceed the original range (2.7 V to 12 V minimum requirement)

All substitute parts listed maintain the 14-TSSOP package specification and surface mount configuration, ensuring direct pin-compatible replacement in existing PCB layouts.

Parameter Comparison

Parameter	FHP3430IMTC14X	AD8054ARUZ	ADA4851-4WYRUZ-R7	ADA4851-4YRUZ	ADA4851-4YRUZ-RL	ADA4851-4YRUZ-RL7	MAX4383EUD+	MAX4383EUD+T
Amplifier Type	Voltage Feedback	Voltage Feedback	Voltage Feedback	Voltage Feedback	Voltage Feedback	Voltage Feedback	Voltage Feedback	Voltage Feedback
Number of Circuits	4	4	4	4	4	4	4	4
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	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Slew Rate	110 V/µs	190 V/µs	375 V/µs	375 V/µs	375 V/µs	375 V/µs	485 V/µs	485 V/µs
Gain Bandwidth Product	60 MHz	Not Specified	70 MHz	70 MHz	70 MHz	70 MHz	Not Specified	Not Specified
-3dB Bandwidth	170 MHz	160 MHz	105 MHz	105 MHz	105 MHz	105 MHz	210 MHz	210 MHz
Current - Input Bias	1.8 µA	2 µA	2.2 µA	2.2 µA	2.2 µA	2.2 µA	8.5 µA	8.5 µA
Voltage - Input Offset	1 mV	1.8 mV	600 µV	600 µV	600 µV	600 µV	3 mV	3 mV
Current - Supply	2.5 mA (x4)	2.875 mA (x4)	2.9 mA (x4)	2.9 mA (x4)	2.9 mA (x4)	2.9 mA (x4)	7.5 mA (x4)	7.5 mA (x4)
Current - Output / Channel	100 mA	30 mA	83 mA	83 mA	83 mA	83 mA	75 mA	75 mA
Voltage - Supply Span (Min)	2.7 V	3 V	2.7 V	2.7 V	2.7 V	2.7 V	4.5 V	4.5 V
Voltage - Supply Span (Max)	12 V	12 V	12 V	12 V	12 V	12 V	11 V	11 V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active
RoHS Status	Not Specified	ROHS3 Compliant	ROHS3 Compliant	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)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Substitute Candidates:

The ADA4851 series (ADA4851-4WYRUZ-R7, ADA4851-4YRUZ, ADA4851-4YRUZ-RL, ADA4851-4YRUZ-RL7) represents the most direct functional replacement for the FHP3430IMTC14X. These devices maintain full compatibility with the original supply voltage range (2.7 V to 12 V), offer extended operating temperature range (-40°C to 125°C), and are ROHS3 compliant. The ADA4851 variants provide improved performance characteristics including higher slew rate (375 V/µs) and lower input offset voltage (600 µV). Multiple packaging options are available: ADA4851-4YRUZ in tube packaging, ADA4851-4YRUZ-RL and ADA4851-4YRUZ-RL7 in cut tape and digi-reel formats. All variants are currently in active production status with substantial inventory availability.

Secondary Substitute Candidates:

The AD8054ARUZ (Analog Devices Inc.) provides an alternative with active product status and ROHS3 compliance. This device operates within the 3 V to 12 V supply range and extends the operating temperature to -40°C to 125°C. The AD8054ARUZ exhibits higher slew rate (190 V/µs) and -3dB bandwidth (160 MHz) compared to the original part. However, the minimum supply voltage of 3 V excludes applications requiring operation below this threshold.

The MAX4383EUD+ and MAX4383EUD+T (Analog Devices Inc./Maxim Integrated) offer the highest performance specifications with slew rate of 485 V/µs and -3dB bandwidth of 210 MHz. These devices are ROHS3 compliant and active in production. Critical design consideration: the minimum supply voltage is 4.5 V, and maximum supply voltage is 11 V, which does not fully encompass the original 2.7 V to 12 V range. Selection of MAX4383 variants requires verification that the application supply voltage remains within 4.5 V to 11 V boundaries.

Compliance and Certification:

All substitute parts maintain MSL rating of 1 (Unlimited), REACH unaffected status, and ECCN EAR99 classification, matching the original device compliance profile. All substitute candidates are ROHS3 compliant, providing environmental regulatory alignment for new designs.

Frequently Asked Questions (FAQ)

Q: Can the ADA4851-4YRUZ directly replace the FHP3430IMTC14X in existing designs?

A: Yes. The ADA4851-4YRUZ maintains pin-compatible 14-TSSOP packaging and all mandatory functional parameters including 4-circuit voltage feedback topology, rail-to-rail output, and supply voltage range of 2.7 V to 12 V. The device is a direct drop-in replacement from an electrical and mechanical standpoint.

Q: What is the difference between ADA4851-4YRUZ, ADA4851-4YRUZ-RL, and ADA4851-4YRUZ-RL7?

A: These three part numbers represent the same device with different packaging formats. ADA4851-4YRUZ is supplied in tube packaging. ADA4851-4YRUZ-RL and ADA4851-4YRUZ-RL7 are supplied in cut tape and digi-reel formats. Electrical specifications and performance characteristics are identical across all three variants. Selection depends on procurement and assembly requirements.

Q: Why do the MAX4383EUD+ and MAX4383EUD+T have different supply voltage limits?

A: The MAX4383 series specifies a minimum supply voltage of 4.5 V and maximum of 11 V. This differs from the original FHP3430IMTC14X range of 2.7 V to 12 V. Applications operating at supply voltages below 4.5 V or above 11 V cannot use the MAX4383 variants. Verify supply voltage requirements before selecting this substitute.

Q: Is the AD8054ARUZ suitable for all applications using the FHP3430IMTC14X?

A: The AD8054ARUZ is suitable for applications where the supply voltage remains at 3 V or higher. The original device supports operation down to 2.7 V, which the AD8054ARUZ does not. For applications requiring operation below 3 V, the ADA4851 series is the appropriate substitute.

Q: What performance improvements do the substitute parts offer?

A: The ADA4851 series provides slew rate of 375 V/µs (compared to 110 V/µs original), lower input offset voltage of 600 µV (compared to 1 mV original), and extended operating temperature to 125°C. The MAX4383 series offers the highest slew rate at 485 V/µs and -3dB bandwidth of 210 MHz. These improvements enable faster signal processing and reduced DC offset errors in precision applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (AD8054ARUZ, ADA4851 series, MAX4383 series) are ROHS3 compliant. The original FHP3430IMTC14X does not specify RoHS status. Substitution with any of these active parts ensures compliance with current environmental regulations.

Q: What is the inventory status of substitute parts?

A: The ADA4851-4YRUZ-RL7 has the highest inventory availability at 16,655 pieces. ADA4851-4YRUZ has 16,192 pieces available. ADA4851-4WYRUZ-R7 has 3,403 pieces. AD8054ARUZ has 1,900 pieces. MAX4383EUD+ has 985 pieces. MAX4383EUD+T has 667 pieces. Inventory levels support both immediate procurement and long-term production requirements.

Q: Can I use the MAX4383EUD+T in place of MAX4383EUD+?

A: Both MAX4383EUD+ and MAX4383EUD+T are electrically identical. The difference is packaging format: MAX4383EUD+ is supplied in tube packaging, while MAX4383EUD+T is supplied in tape and reel format. Selection depends on assembly process requirements. Electrical performance and specifications are identical.

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