TLE2037CDG4 Equivalent & Substitute Parts

Part Overview

The TLE2037CDG4 is a general-purpose operational amplifier manufactured by Texas Instruments, part of the Excalibur™ series. This single-circuit, 8-SOIC surface-mount device is designed for linear amplification applications requiring moderate bandwidth and low input offset voltage. The TLE2037CDG4 is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.

Substiute Parts

TLE2037CDG4

Texas InstrumentsIn Stock: 1004TLE2037CDG4 Datasheet

Current PartRFQ

TLE2037CD

Texas InstrumentsIn Stock: 1203TLE2037CD Datasheet

MFR RecommendedRFQ

LT1028CS8#TRPBF

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLE2037CDG4 is determined by electrical and mechanical compatibility across the following criteria:

Primary Substitution Criteria:

• Amplifier Type: General Purpose
• Number of Circuits: 1
• Package / Case: 8-SOIC form factor
• Mounting Type: Surface Mount
• Operating Temperature Range: 0°C to 70°C minimum
• Supply Voltage Range: Minimum 8 V to maximum 38 V overlap
• RoHS3 Compliance and MSL Level 1

Electrical Performance Parameters:

• Slew Rate: 7.5 V/µs (baseline)
• Gain Bandwidth Product: 50 MHz (baseline)
• Input Bias Current: 15 nA (baseline)
• Input Offset Voltage: 20 µV (baseline)
• Supply Current: 3.8 mA (baseline)
• Output Current: 50 mA per channel (baseline)

Substitute parts must maintain compatibility within the 8-SOIC package footprint and support the specified supply voltage range. Electrical parameters may vary within acceptable engineering tolerances for general-purpose amplifier applications.

Parameter Comparison

Engineering Selection Recommendations

TLE2037CD (Primary Substitute)

The TLE2037CD is the direct functional equivalent of the TLE2037CDG4. Both devices share identical electrical specifications, including slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, and output current. The TLE2037CD maintains the same 8-SOIC package footprint and operating temperature range. The primary distinction is product status: TLE2037CD is currently active in production, whereas TLE2037CDG4 is discontinued. The TLE2037CD is packaged in Tube format, compared to the original device's unspecified packaging. Both devices are ROHS3 compliant with MSL Level 1 rating. Selection of TLE2037CD provides direct pin-for-pin and functional compatibility with no design modifications required.

LT1028CS8#TRPBF (Secondary Substitute)

The LT1028CS8#TRPBF, manufactured by Analog Devices Inc., is an alternative general-purpose operational amplifier in 8-SOIC package format. This device exhibits enhanced electrical performance in specific parameters: slew rate of 15 V/µs (double the TLE2037CDG4), gain bandwidth product of 75 MHz (1.5× higher), and input bias current of 30 nA (double the baseline). Supply current is 7.6 mA, compared to 3.8 mA for the TLE2037CDG4. The maximum supply voltage is 36 V, compared to 38 V for the original device. The LT1028CS8#TRPBF maintains compatibility with the 8-SOIC footprint, operating temperature range of 0°C to 70°C, and ROHS3 compliance with MSL Level 1. This substitute is suitable for applications where higher slew rate and bandwidth are beneficial or where supply voltage does not exceed 36 V. The increased supply current and input bias current must be evaluated against circuit design requirements.

Both substitute parts maintain regulatory compliance (ROHS3, MSL Level 1) and are currently in active production status, ensuring long-term availability.

Frequently Asked Questions (FAQ)

Q: Can TLE2037CD be used as a direct replacement for TLE2037CDG4?

A: Yes. The TLE2037CD is electrically and mechanically identical to the TLE2037CDG4. Both devices share the same slew rate (7.5 V/µs), gain bandwidth product (50 MHz), input bias current (15 nA), input offset voltage (20 µV), supply current (3.8 mA), output current (50 mA), supply voltage range (8 V to 38 V), and 8-SOIC package footprint. No circuit modifications are required for substitution.

Q: What are the key differences between TLE2037CD and LT1028CS8#TRPBF?

A: The LT1028CS8#TRPBF offers higher performance in slew rate (15 V/µs versus 7.5 V/µs) and gain bandwidth product (75 MHz versus 50 MHz). However, it draws higher supply current (7.6 mA versus 3.8 mA) and has higher input bias current (30 nA versus 15 nA). The maximum supply voltage for LT1028CS8#TRPBF is 36 V, compared to 38 V for TLE2037CDG4. Both maintain 8-SOIC package compatibility and 0°C to 70°C operating temperature range.

Q: Are all three devices compatible with the same PCB footprint?

A: Yes. TLE2037CDG4, TLE2037CD, and LT1028CS8#TRPBF all use the 8-SOIC package with 0.154" (3.90 mm) width. PCB footprints designed for any of these devices are mechanically compatible with the others.

Q: What is the significance of the product status difference between TLE2037CDG4 and TLE2037CD?

A: TLE2037CDG4 is discontinued at DiGi Electronics, meaning it is no longer available through standard distribution channels. TLE2037CD is active in production and readily available. For new designs or ongoing procurement, TLE2037CD is the recommended choice to ensure supply chain continuity.

Q: Which substitute should be selected for power-sensitive applications?

A: TLE2037CD is the appropriate choice for power-sensitive applications. It maintains the same 3.8 mA supply current as the original TLE2037CDG4. The LT1028CS8#TRPBF draws 7.6 mA, which is double the baseline and may be unsuitable for battery-powered or low-power designs.

Q: Are both substitute parts RoHS3 compliant?

A: Yes. Both TLE2037CD and LT1028CS8#TRPBF are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). Both devices meet the same regulatory requirements as the original TLE2037CDG4.

Q: Can LT1028CS8#TRPBF be used in applications requiring the maximum 38 V supply voltage?

A: No. The LT1028CS8#TRPBF has a maximum supply voltage of 36 V. Applications requiring operation at 37 V or 38 V must use TLE2037CD, which supports the full 38 V maximum supply voltage of the original device.