LMH6724MA Equivalent & Substitute Parts

Part Overview

The LMH6724MA is a current feedback amplifier integrated circuit manufactured by Texas Instruments, configured as a dual-channel operational amplifier in an 8-SOIC surface mount package. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The LMH6724MA delivers a slew rate of 600V/µs and -3dB bandwidth of 370 MHz, suitable for high-speed signal conditioning applications requiring current feedback topology.

Key Parameters

Parameter	Value	Unit
Amplifier Type	Current Feedback	—
Number of Circuits	2	Channels
Slew Rate	600	V/µs
-3dB Bandwidth	370	MHz
Current - Input Bias	2	µA
Voltage - Input Offset	1	mV
Current - Supply (per Channel)	1	mA
Current - Output / Channel	110	mA
Voltage - Supply Span (Min)	4.5	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	—
Product Status	Obsolete	—

Substitute Part Grouping Explanation

Substitute parts for the LMH6724MA are grouped based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Mandatory Compatibility Criteria:

Amplifier topology: Current feedback configuration
Circuit count: Dual-channel (2 circuits)
Package type: 8-SOIC surface mount
Supply voltage range: Minimum 4.5V, maximum 12V
Operating temperature: -40°C to 85°C

Performance Parameters Defining Substitution Classes:

Slew rate (600V/µs baseline)
-3dB bandwidth (370 MHz baseline)
Input bias current (2 µA baseline)
Output current capability (110 mA baseline)

Substitutes are classified into two categories: Direct Equivalents (matching all baseline parameters) and Performance Variants (exceeding baseline specifications while maintaining package and topology compatibility).

Parameter Comparison

Parameter	LMH6724MA	LMH6724MA/NOPB	AD8012ARZ	AD8012ARZ-REEL	HA5023IBZ96	LT1396CS8#PBF	LT1396CS8#TRPBF
Manufacturer	Texas Instruments	National Semiconductor	Analog Devices Inc.	Analog Devices Inc.	Renesas Electronics	Analog Devices Inc.	Analog Devices Inc.
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
Amplifier Type	Current Feedback	Current Feedback	Current Feedback	Current Feedback	Current Feedback	Current Feedback	Current Feedback
Number of Circuits	2	2	2	2	2	2	2
Slew Rate (V/µs)	600	600	2250	2250	350	800	800
-3dB Bandwidth (MHz)	370	370	350	350	125	400	400
Current - Input Bias (µA)	2	2	3	3	—	10	10
Voltage - Input Offset (mV)	1	1	1.5	1.5	—	1	1
Current - Supply per Channel (mA)	1	1	1.7	1.7	7.5	4.6	4.6
Current - Output / Channel (mA)	110	110	125	125	20	80	80
Voltage - Supply Span Min (V)	4.5	4.5	3	3	±4.75	4	4
Voltage - Supply Span Max (V)	12	12	12	12	±18	12	12
Operating Temperature (°C)	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	0 to 70	0 to 70
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	Non-compliant	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent (Preferred for Obsolete Part Replacement):

LMH6724MA/NOPB is the direct equivalent substitute. This part maintains identical electrical specifications including 600V/µs slew rate, 370 MHz bandwidth, 2 µA input bias current, and 110 mA output current per channel. The part is manufactured by National Semiconductor and carries Active product status, ensuring long-term availability. Packaging is identical (8-SOIC surface mount). This substitute requires no circuit redesign and provides pin-for-pin compatibility.

Performance-Enhanced Alternatives:

LT1396CS8#PBF and LT1396CS8#TRPBF (Analog Devices Inc., LT® series) offer enhanced slew rate (800V/µs) and bandwidth (400 MHz) while maintaining the 8-SOIC package and dual-channel configuration. These parts are Active status with ROHS3 compliance. Operating temperature range is restricted to 0°C to 70°C (versus -40°C to 85°C for the original). These substitutes are suitable for applications where extended temperature operation is not required and higher performance is beneficial.

AD8012ARZ and AD8012ARZ-REEL (Analog Devices Inc.) deliver the highest performance with 2250V/µs slew rate and 350 MHz bandwidth. These parts feature expanded supply voltage range (3V minimum) and higher output current (125 mA per channel). Both are Active status with ROHS3 compliance. The -REEL variant is packaged in tape and reel format for automated assembly. These substitutes are suitable for high-speed applications where performance headroom is required.

HA5023IBZ96 (Renesas Electronics Corporation) is a current feedback video amplifier with lower bandwidth (125 MHz) and slew rate (350V/µs), with reduced output current (20 mA per channel). This part is suitable only for applications where the original performance specifications exceed actual requirements. Higher supply current (7.5 mA) and dual supply voltage configuration (±4.75V to ±18V) distinguish this option.

Compliance Considerations:

The original LMH6724MA is RoHS non-compliant. All active substitutes (LMH6724MA/NOPB, AD8012ARZ, AD8012ARZ-REEL, HA5023IBZ96, LT1396CS8#PBF, LT1396CS8#TRPBF) are ROHS3 compliant, meeting current environmental regulations. All parts carry REACH Unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can LMH6724MA/NOPB be used as a direct replacement for LMH6724MA?

A: Yes. LMH6724MA/NOPB is a direct equivalent with identical electrical specifications, package type (8-SOIC), and pin configuration. No circuit modifications are required. The primary difference is product status (Active versus Obsolete) and packaging format (Bulk versus standard).

Q: What is the key difference between LT1396CS8#PBF and LT1396CS8#TRPBF?

A: Both parts are electrically identical with 800V/µs slew rate and 400 MHz bandwidth. The difference is packaging format: LT1396CS8#PBF is supplied in Tube packaging for manual handling, while LT1396CS8#TRPBF is supplied in Tape & Reel format for automated pick-and-place assembly. Electrical performance and pin configuration are identical.

Q: Are AD8012ARZ and AD8012ARZ-REEL interchangeable?

A: Electrically and functionally, yes. Both deliver 2250V/µs slew rate, 350 MHz bandwidth, and 125 mA output current per channel. The difference is packaging: AD8012ARZ is supplied in Tube format, while AD8012ARZ-REEL is supplied in Tape & Reel format. Select based on assembly process requirements.

Q: Why does HA5023IBZ96 have lower bandwidth than the original LMH6724MA?

A: HA5023IBZ96 is optimized for video amplifier applications with 125 MHz bandwidth and 350V/µs slew rate, compared to the LMH6724MA's 370 MHz bandwidth and 600V/µs slew rate. This part is suitable only for applications where the original specifications exceed actual performance requirements. Output current is also reduced to 20 mA per channel.

Q: What is the operating temperature limitation for LT1396 series parts?

A: LT1396CS8#PBF and LT1396CS8#TRPBF operate from 0°C to 70°C, compared to the original LMH6724MA range of -40°C to 85°C. These parts are not suitable for applications requiring extended low-temperature operation below 0°C or high-temperature operation above 70°C.

Q: Do all substitute parts meet RoHS compliance?

A: All active substitute parts (LMH6724MA/NOPB, AD8012ARZ, AD8012ARZ-REEL, HA5023IBZ96, LT1396CS8#PBF, LT1396CS8#TRPBF) are ROHS3 compliant. The original LMH6724MA is RoHS non-compliant. Substitution with any active part improves environmental compliance status.

Q: Can I use a higher-performance part like AD8012ARZ in place of LMH6724MA without circuit changes?

A: Pin configuration and package are compatible (8-SOIC, dual-channel current feedback). However, the enhanced performance characteristics (2250V/µs slew rate versus 600V/µs, 350 MHz bandwidth versus 370 MHz) may require circuit validation to ensure stability and noise performance remain acceptable in the specific application. No PCB layout changes are required due to identical package dimensions.

Q: What supply voltage range is compatible with all substitute options?

A: The common supply voltage range across all substitutes is 4V to 12V. The original LMH6724MA specifies 4.5V to 12V. AD8012ARZ and AD8012ARZ-REEL extend the minimum to 3V. HA5023IBZ96 uses dual supply configuration (±4.75V to ±18V) and is not directly comparable on single-supply basis.

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