LMH6626MA Equivalent & Substitute Parts

Part Overview

The LMH6626MA is a voltage feedback amplifier integrated circuit manufactured by Texas Instruments, featuring two independent circuits in an 8-SOIC surface mount package. This device is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design requirements and production continuity. The LMH6626MA delivers high-speed amplification with a 1.5 GHz gain bandwidth product and 400V/µs slew rate, suitable for applications requiring dual-channel voltage feedback amplification within the 5V to 12V supply range.

Key Parameters

Parameter	Value
Amplifier Type	Voltage Feedback
Number of Circuits	2
Slew Rate	400V/µs
Gain Bandwidth Product	1.5 GHz
-3dB Bandwidth	95 MHz
Current - Input Bias	13 µA
Voltage - Input Offset	100 µV
Current - Supply	12mA (x2 Channels)
Current - Output / Channel	80 mA
Voltage - Supply Span (Min)	5 V
Voltage - Supply Span (Max)	12 V
Operating Temperature	-40°C ~ 125°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the LMH6626MA is determined by strict alignment of electrical and mechanical parameters. The primary substitution criteria include:

Electrical Compatibility Parameters:

Amplifier type (voltage feedback)
Number of circuits (2 independent channels)
Output current capability (80 mA per channel minimum)
Supply voltage range compatibility (5V to 12V operation)
Operating temperature range coverage

Mechanical Compatibility Parameters:

Package type (8-SOIC surface mount)
Pin count and pinout compatibility
Physical dimensions (0.154" width, 3.90mm)

Compliance Parameters:

RoHS compliance status
Moisture sensitivity level
REACH and ECCN classifications

The LMH6626MA/NOPB represents a direct equivalent from Texas Instruments with identical electrical specifications and active product status. The LT1816CS8#PBF and LT1816IS8#PBF from Analog Devices Inc. function as manufacturer-recommended substitutes, offering enhanced performance characteristics including higher slew rate (1500V/µs), improved input bias current (2 µA), and extended bandwidth capabilities, while maintaining mechanical compatibility and dual-channel architecture.

Parameter Comparison

Parameter	LMH6626MA	LMH6626MA/NOPB	LT1816CS8#PBF	LT1816IS8#PBF
Manufacturer	Texas Instruments	Texas Instruments	Analog Devices Inc.	Analog Devices Inc.
Product Status	Obsolete	Active	Active	Active
Amplifier Type	Voltage Feedback	Voltage Feedback	Voltage Feedback	Voltage Feedback
Number of Circuits	2	2	2	2
Slew Rate	400V/µs	400V/µs	1500V/µs	1500V/µs
Gain Bandwidth Product	1.5 GHz	1.5 GHz	220 MHz	220 MHz
-3dB Bandwidth	95 MHz	95 MHz	350 MHz	350 MHz
Current - Input Bias	13 µA	13 µA	2 µA	2 µA
Voltage - Input Offset	100 µV	100 µV	200 µV	200 µV
Current - Supply	12mA (x2 Channels)	12mA (x2 Channels)	6.5mA (x2 Channels)	6.5mA (x2 Channels)
Current - Output / Channel	80 mA	80 mA	80 mA	80 mA
Voltage - Supply Span (Min)	5 V	5 V	2.5 V	2.5 V
Voltage - Supply Span (Max)	12 V	12 V	11 V	11 V
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	0°C ~ 70°C	-40°C ~ 85°C
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)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

LMH6626MA/NOPB is the primary direct equivalent for the obsolete LMH6626MA. This Texas Instruments component maintains identical electrical specifications and mechanical compatibility while offering active product status and ROHS3 compliance. The LMH6626MA/NOPB is suitable for applications requiring exact performance matching and is available in tube packaging.

LT1816CS8#PBF and LT1816IS8#PBF from Analog Devices Inc. are manufacturer-recommended substitutes offering enhanced performance characteristics. Both devices maintain the dual-channel voltage feedback architecture and 8-SOIC package compatibility. The LT1816CS8#PBF operates within a 0°C to 70°C temperature range, while the LT1816IS8#PBF extends operation to -40°C to 85°C, providing broader thermal coverage. Both substitutes deliver superior slew rate performance (1500V/µs versus 400V/µs) and reduced supply current consumption (6.5mA versus 12mA per dual channels), while maintaining 80mA output current capability per channel. All substitute options are ROHS3 compliant and carry active product status.

Selection between substitute options depends on specific application temperature requirements and performance optimization priorities. The LT1816IS8#PBF provides the widest operating temperature range among active alternatives.

Frequently Asked Questions (FAQ)

Q: Can the LMH6626MA/NOPB be used as a direct replacement for the LMH6626MA?

A: Yes. The LMH6626MA/NOPB is a direct equivalent with identical electrical specifications, dual-channel voltage feedback architecture, and 8-SOIC package compatibility. The primary difference is active product status and ROHS3 compliance of the /NOPB variant.

Q: What are the key differences between the LMH6626MA and the LT1816 series substitutes?

A: The LT1816CS8#PBF and LT1816IS8#PBF maintain mechanical compatibility and dual-channel configuration but offer enhanced electrical performance: slew rate increases from 400V/µs to 1500V/µs, supply current decreases from 12mA to 6.5mA per dual channels, and input bias current improves from 13µA to 2µA. Output current capability remains at 80mA per channel. Operating temperature ranges differ between variants.

Q: Are the LT1816 substitutes pin-compatible with the LMH6626MA?

A: Both devices utilize the 8-SOIC package with identical physical dimensions (0.154" width, 3.90mm). Pin compatibility for specific applications requires verification of pinout configuration against application schematics.

Q: What is the impact of the LT1816 substitutes having a lower gain bandwidth product?

A: The LT1816 series exhibits 220MHz gain bandwidth product compared to the LMH6626MA's 1.5GHz. However, the LT1816 series compensates with superior -3dB bandwidth (350MHz versus 95MHz) and higher slew rate (1500V/µs versus 400V/µs). Application suitability depends on specific frequency response and transient response requirements.

Q: Which substitute option should be selected for extended temperature operation?

A: The LT1816IS8#PBF supports -40°C to 85°C operation, providing the widest temperature range among active substitutes. The LT1816CS8#PBF operates within 0°C to 70°C. Selection depends on application thermal requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. The LMH6626MA/NOPB, LT1816CS8#PBF, and LT1816IS8#PBF are all ROHS3 compliant. The original LMH6626MA is RoHS non-compliant.

Q: What is the supply voltage compatibility between the main part and substitutes?

A: The LMH6626MA and LMH6626MA/NOPB operate within 5V to 12V supply range. The LT1816 series extends the minimum supply voltage to 2.5V while maintaining 11V maximum, providing broader supply voltage flexibility for applications with lower supply rails.

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