LMH6655MM Equivalent & Substitute Parts Reference

Part Overview

The LMH6655MM by Texas Instruments is a voltage feedback operational amplifier IC featuring 2 circuits in an 8-VSSOP surface mount package. It is categorized under linear amplifiers. With key characteristics including a 200 V/µs slew rate, 260 MHz gain bandwidth product, 4.5 mA supply current per channel, and a supply voltage range of 4.5 V to 12 V, this device is specified for an operating temperature of -40°C to 85°C. The part is currently listed as obsolete, making the identification of direct alternatives or substitutes essential for continued product support or new designs.

Substiute Parts

LMH6655MM

Texas InstrumentsIn Stock: 175458LMH6655MM Datasheet

Current PartRFQ

LMH6655MM/NOPB

Texas InstrumentsIn Stock: 3119LMH6655MM/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is validated through an exact match of critical electrical and mechanical parameters: amplifier type, number of circuits, slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, output current per channel, supply voltage range, operating temperature range, mounting type, and mechanical package/case. All matched features are required to ensure functional drop-in compatibility in the Linear, Amplifiers category.

Strict matching parameters:

• Amplifier Type (Voltage Feedback)
• Number of Circuits (2)
• Slew Rate (200 V/µs)
• Gain Bandwidth Product (260 MHz)
• Current - Input Bias (5 µA)
• Voltage - Input Offset (1 mV)
• Current - Supply (4.5 mA x2 Channels)
• Current - Output / Channel (120 mA)
• Voltage - Supply Span (4.5 V Min, 12 V Max)
• Operating Temperature (-40°C to 85°C)
• Mounting Type (Surface Mount)
• Package / Case (8-TSSOP, 8-MSOP, 8-VSSOP dimensions)

Parameter Comparison

Engineering Selection Recommendations

LMH6655MM is classified as obsolete with RoHS non-compliance, while LMH6655MM/NOPB is active and ROHS3 compliant. Both parts provide identical electrical and mechanical parameters, as well as regulatory certifications for REACH and ECCN. For applications requiring active support and environmental compliance, LMH6655MM/NOPB is functionally equivalent and appropriate for direct substitution.

Frequently Asked Questions (FAQ)

Q1: Are LMH6655MM and LMH6655MM/NOPB form-fit-and-function identical?
A1: Yes, the two parts are identical in electrical performance, mechanical package (8-VSSOP), and pinout.

Q2: Can LMH6655MM/NOPB be used as a drop-in replacement for LMH6655MM?
A2: Yes, LMH6655MM/NOPB matches all specified electrical, mechanical, and environmental parameters.

Q3: Does RoHS compliance differ between these models?
A3: Yes, LMH6655MM is RoHS non-compliant, while LMH6655MM/NOPB is ROHS3 Compliant.

Q4: Are there any differences in supply range or operational temperature?
A4: No, both parts support a supply voltage of 4.5 V to 12 V and an operating range of -40°C to 85°C.

Q5: Will switching to LMH6655MM/NOPB require PCB or design changes?
A5: No changes are required; both are supplied in 8-VSSOP and compatible footprints.