LMH6639MA Equivalent & Substitute Parts

Part Overview

The LMH6639MA is a voltage feedback amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This single-circuit, rail-to-rail output amplifier operates across a 3V to 12V supply range with a slew rate of 200V/µs and 90 MHz gain bandwidth product. The device is currently in Last Time Buy status with 1307 pieces in stock. Due to its Last Time Buy classification, identifying equivalent and substitute parts is necessary for design continuity and long-term component availability.

Substiute Parts

LMH6639MA

Texas InstrumentsIn Stock: 1385LMH6639MA Datasheet

Current PartRFQ

LMH6639MAX/NOPB

Texas InstrumentsIn Stock: 1402LMH6639MAX/NOPB Datasheet

MFR RecommendedRFQ

LMH6639MA/NOPB

Texas InstrumentsIn Stock: 1573LMH6639MA/NOPB Datasheet

Parametric EquivalentRFQ

AD8041ARZ-REEL7

Analog Devices Inc.In Stock: 24598AD8041ARZ-REEL7 Datasheet

MFR RecommendedRFQ

MAX4213ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1913MAX4213ESA+ Datasheet

MFR RecommendedRFQ

MAX4213ESA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2432MAX4213ESA+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LMH6639MA is determined by the following critical parameters:

Mechanical Compatibility:

• Package type: 8-SOIC (0.154", 3.90mm Width)
• Mounting type: Surface Mount
• Moisture Sensitivity Level: 1 (Unlimited)

Electrical Compatibility:

• Amplifier type: Voltage Feedback
• Number of circuits: 1
• Output type: Rail-to-Rail
• Supply voltage range: 3V to 12V minimum overlap
• Operating temperature: -40°C to 85°C

Performance Parameters (Substitution Basis):

• Slew rate: 200V/µs or higher
• Gain bandwidth product: 90 MHz or higher
• -3dB bandwidth: 228 MHz or higher
• Input bias current: ≤1.4 µA
• Input offset voltage: ≤1.3 mV
• Supply current: ≤4.18 mA
• Output current per channel: ≥112 mA

All substitute parts listed meet or exceed these electrical and mechanical requirements within the specified operating conditions.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (Texas Instruments LMH6639 Series):

LMH6639MAX/NOPB and LMH6639MA/NOPB are direct parametric equivalents to the LMH6639MA. All three devices share identical electrical specifications, including slew rate, gain bandwidth product, -3dB bandwidth, input bias current, input offset voltage, supply current, and output current. The primary differences are packaging format (Tape & Reel, Bulk, or standard) and product status. LMH6639MAX/NOPB and LMH6639MA/NOPB are both in Active status, making them suitable long-term replacements for the Last Time Buy LMH6639MA. All three are ROHS3 compliant with MSL 1 rating.

Cross-Manufacturer Alternatives:

AD8041ARZ-REEL7 (Analog Devices Inc.) meets mechanical and core electrical requirements but exhibits reduced performance in slew rate (170V/µs versus 200V/µs) and -3dB bandwidth (170 MHz versus 228 MHz). Output current per channel is also lower at 50 mA versus 112 mA. This device is suitable only for applications where the reduced performance parameters are acceptable.

MAX4213ESA+ and MAX4213ESA+T (Analog Devices Inc./Maxim Integrated) exceed the LMH6639MA specifications in slew rate (600V/µs) and -3dB bandwidth (300 MHz). However, input bias current (5.4 µA) and input offset voltage (4 mV) are higher than the LMH6639MA. Supply voltage maximum is reduced to 11V. MAX4213ESA+T provides 120 mA output current, meeting the 112 mA requirement. These devices are suitable for applications requiring higher bandwidth and slew rate performance, provided the increased input offset voltage and bias current are acceptable.

All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can LMH6639MAX/NOPB directly replace LMH6639MA in existing designs?

A: Yes. LMH6639MAX/NOPB is a direct parametric equivalent with identical electrical specifications. The difference is packaging format (Tape & Reel versus standard). Both are ROHS3 compliant, MSL 1, and operate across -40°C to 85°C. LMH6639MAX/NOPB is in Active status, providing long-term availability.

Q: What is the difference between LMH6639MA/NOPB and LMH6639MA?

A: LMH6639MA/NOPB is the same device with NOPB (No Plumbum/Lead-Free) designation, confirming RoHS compliance. Electrical and mechanical specifications are identical. The primary difference is packaging format (Bulk versus standard).

Q: Is AD8041ARZ-REEL7 a suitable replacement for LMH6639MA?

A: AD8041ARZ-REEL7 meets mechanical compatibility (8-SOIC package, surface mount, MSL 1) and core electrical requirements (voltage feedback, single circuit, rail-to-rail output, -40°C to 85°C operation). However, performance is reduced: slew rate is 170V/µs (versus 200V/µs), -3dB bandwidth is 170 MHz (versus 228 MHz), and output current is 50 mA (versus 112 mA). This device is suitable only for applications where these reduced specifications are acceptable.

Q: Can MAX4213ESA+ or MAX4213ESA+T replace LMH6639MA?

A: MAX4213ESA+ and MAX4213ESA+T exceed LMH6639MA performance in slew rate (600V/µs) and -3dB bandwidth (300 MHz). However, input bias current is higher (5.4 µA versus 1.4 µA) and input offset voltage is higher (4 mV versus 1.3 mV). Supply voltage maximum is 11V instead of 12V. These devices are suitable for applications requiring higher bandwidth and slew rate, provided the increased input offset voltage and bias current do not degrade circuit performance.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), matching the LMH6639MA compliance profile.

Q: What packaging options are available for LMH6639 equivalents?

A: LMH6639MA is available in standard packaging. LMH6639MAX/NOPB is available in Tape & Reel (TR) format. LMH6639MA/NOPB is available in Bulk format. All three use the same 8-SOIC (0.154", 3.90mm Width) package. AD8041ARZ-REEL7 is supplied in Cut Tape (CT) & Digi-Reel® format. MAX4213ESA+ is supplied in Tube format. MAX4213ESA+T is supplied in Cut Tape (CT) & Digi-Reel® format.

Q: What is the operating temperature range for all substitute parts?

A: All substitute parts operate across -40°C to 85°C, matching the LMH6639MA operating temperature range.

Q: Which substitute provides the closest electrical match to LMH6639MA?

A: LMH6639MAX/NOPB and LMH6639MA/NOPB are direct parametric equivalents with identical electrical specifications across all measured parameters. Both are recommended for direct replacement in existing designs.