TLE2037MD Equivalent & Substitute Parts

Part Overview

The TLE2037MD is a general-purpose operational amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface-mount package. This device is classified as a Last Time Buy product, indicating discontinued production with limited remaining inventory. The TLE2037MD belongs to the Excalibur™ series and is ROHS3 compliant with unlimited moisture sensitivity rating.

Identification of equivalent and substitute parts is necessary due to the Last Time Buy status of the TLE2037MD. Alternative components with compatible electrical and mechanical specifications ensure design continuity and long-term supply chain reliability for applications requiring general-purpose amplification in the specified parameter range.

Substiute Parts

TLE2037MD

Texas InstrumentsIn Stock: 1403TLE2037MD Datasheet

Current PartRFQ

AD8229HRZ-R7

Analog Devices Inc.In Stock: 817AD8229HRZ-R7 Datasheet

MFR RecommendedRFQ

LT1028CS8#PBF

Analog Devices Inc.In Stock: 5990LT1028CS8#PBF Datasheet

MFR RecommendedRFQ

LT1028CS8#TRPBF

Analog Devices Inc.In Stock: 89067LT1028CS8#TRPBF Datasheet

MFR RecommendedRFQ

OP37GS8#PBF

Analog Devices Inc.In Stock: 928OP37GS8#PBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLE2037MD is determined by compatibility across the following critical parameters:

Mechanical Compatibility:

• Package type: 8-SOIC surface-mount configuration with 0.154" (3.90mm) width
• Mounting type: Surface mount

Electrical Compatibility Criteria:

• Amplifier classification: General Purpose or Instrumentation amplifier types
• Single circuit configuration
• Supply voltage range overlap: Minimum 8V and maximum spanning to at least 34V
• Input bias current: 15 nA or lower
• Input offset voltage: 20 µV or lower
• Output current capability: 35 mA or higher per channel
• Slew rate: 7.5 V/µs or higher
• Gain bandwidth product: 50 MHz or higher

Compliance Requirements:

• ROHS3 compliant
• Moisture sensitivity level 1 (unlimited)
• Surface-mount 8-SOIC package footprint compatibility

Substitute parts are grouped based on amplifier type (general-purpose versus instrumentation) and operating temperature range classifications. Parts meeting all mechanical and electrical criteria within the specified parameter ranges are considered valid substitutes.

Parameter Comparison

Engineering Selection Recommendations

LT1028CS8#PBF and LT1028CS8#TRPBF

The LT1028 series (both tube and tape & reel packaging variants) are direct functional equivalents to the TLE2037MD for general-purpose amplification applications. Both variants are manufactured by Analog Devices Inc. and maintain Active product status with substantial inventory availability. The LT1028CS8#TRPBF offers the highest inventory level (88,988 pieces) and is packaged in tape & reel format suitable for automated assembly processes. The LT1028CS8#PBF is available in tube packaging (5,923 pieces). Both variants exceed the TLE2037MD specifications in slew rate (15 V/µs versus 7.5 V/µs) and gain bandwidth product (75 MHz versus 50 MHz), while maintaining identical input offset voltage (20 µV) and compatible input bias current (30 nA versus 15 nA). Operating temperature range is narrower (0°C to 70°C versus -55°C to 125°C) and maximum supply voltage is reduced to 36V versus 38V. ROHS3 compliance and unlimited moisture sensitivity are maintained.

OP37GS8#PBF

The OP37GS8#PBF is a general-purpose amplifier from Analog Devices Inc. with Active product status and 819 pieces in inventory. This device provides superior slew rate performance (17 V/µs) and gain bandwidth product (63 MHz) compared to the TLE2037MD. Input bias current matches the TLE2037MD at 15 nA, though input offset voltage is slightly higher at 30 µV. Operating temperature range extends to -25°C to 85°C, providing broader low-temperature coverage than the LT1028 variants. Maximum supply voltage is 36V. ROHS3 compliance and unlimited moisture sensitivity are maintained. Supply current specification is not provided for this device.

AD8229HRZ-R7

The AD8229HRZ-R7 is an instrumentation amplifier from Analog Devices Inc. with Active product status and 803 pieces in inventory. This device differs from the TLE2037MD in amplifier classification (instrumentation versus general-purpose) and provides the widest operating temperature range (-40°C to 175°C). The AD8229HRZ-R7 exceeds the TLE2037MD in slew rate (22 V/µs) but operates with reduced maximum supply voltage (34V versus 38V). Input bias current is higher at 70 nA, and input offset voltage is elevated to 100 µV. Output current per channel is reduced to 35 mA. ROHS3 compliance and unlimited moisture sensitivity are maintained. This device is suitable for applications where instrumentation-grade amplification and extended temperature operation are required.

All substitute parts maintain mechanical compatibility through identical 8-SOIC surface-mount packaging and full ROHS3 compliance with unlimited moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q: Can the LT1028CS8#PBF directly replace the TLE2037MD in existing PCB designs?

A: Yes. Both devices use identical 8-SOIC surface-mount packaging with 0.154" (3.90mm) width and are pin-compatible. PCB footprints and land patterns require no modification. However, the narrower operating temperature range (0°C to 70°C versus -55°C to 125°C) must be evaluated against application requirements.

Q: What is the difference between LT1028CS8#PBF and LT1028CS8#TRPBF?

A: Both are identical LT1028 general-purpose amplifiers with identical electrical specifications. The primary difference is packaging format: LT1028CS8#PBF is supplied in tube packaging for manual handling and lower-volume applications, while LT1028CS8#TRPBF is supplied in tape & reel format optimized for automated pick-and-place assembly. The LT1028CS8#TRPBF offers significantly higher inventory availability (88,988 pieces versus 5,923 pieces).

Q: Why does the AD8229HRZ-R7 have different electrical characteristics than the other substitutes?

A: The AD8229HRZ-R7 is classified as an instrumentation amplifier, whereas the TLE2037MD, LT1028, and OP37 are general-purpose amplifiers. Instrumentation amplifiers are optimized for precision measurement applications with higher input impedance and different gain structures. The AD8229HRZ-R7 is suitable for substitution only in applications where instrumentation-grade performance is acceptable or beneficial.

Q: What is the impact of the OP37GS8#PBF having no specified supply current?

A: The absence of supply current specification in the provided data does not indicate incompatibility. The OP37GS8#PBF maintains all other critical electrical parameters within acceptable ranges for substitution. Applications with strict power consumption requirements should obtain complete datasheet specifications from Analog Devices Inc. before final selection.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (LT1028CS8#PBF, LT1028CS8#TRPBF, OP37GS8#PBF, and AD8229HRZ-R7) are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1), matching the TLE2037MD compliance profile.

Q: Which substitute offers the best performance improvement over the TLE2037MD?

A: Performance improvement depends on application requirements. The AD8229HRZ-R7 provides the highest slew rate (22 V/µs) and widest operating temperature range (-40°C to 175°C). The LT1028 variants offer the highest gain bandwidth product (75 MHz). The OP37GS8#PBF provides balanced performance with 17 V/µs slew rate and 63 MHz gain bandwidth product.

Q: Can the TLE2037MD be used in place of the substitute parts?

A: The TLE2037MD is classified as Last Time Buy with limited inventory (1,309 pieces). While it meets the electrical specifications for applications designed around the substitute parts, its discontinued status makes it unsuitable for new designs or long-term supply chain planning. Substitute parts with Active status are recommended for new applications.

Q: What supply voltage considerations apply when substituting parts?

A: The TLE2037MD supports supply voltages up to 38V. The LT1028 variants and OP37GS8#PBF are rated to 36V maximum, while the AD8229HRZ-R7 is rated to 34V maximum. Applications requiring supply voltages above 34V must verify compatibility with the selected substitute. All devices support the minimum 8V supply requirement.