TLC2274IDRG4 Equivalent & Substitute Parts

Part Overview

The TLC2274IDRG4 is a general purpose operational amplifier featuring four independent circuits in a 14-SOIC surface mount package. Manufactured by Texas Instruments, this rail-to-rail amplifier is designed for applications requiring low input bias current and moderate bandwidth performance. The device is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and maintenance applications.

Substiute Parts

TLC2274IDRG4

Texas InstrumentsIn Stock: 10272TLC2274IDRG4 Datasheet

Current PartRFQ

TLC2274IDR

Texas InstrumentsIn Stock: 25137TLC2274IDR Datasheet

MFR RecommendedRFQ

LMC6084AIM/NOPB

National SemiconductorIn Stock: 1451LMC6084AIM/NOPB Datasheet

MFR RecommendedRFQ

LMC6084IM/NOPB

Texas InstrumentsIn Stock: 2174LMC6084IM/NOPB Datasheet

MFR RecommendedRFQ

LMC6084IMX/NOPB

Texas InstrumentsIn Stock: 1679LMC6084IMX/NOPB Datasheet

MFR RecommendedRFQ

MCP6H04-E/SL

Microchip TechnologyIn Stock: 12870MCP6H04-E/SL Datasheet

MFR RecommendedRFQ

MCP6H04T-E/SL

Microchip TechnologyIn Stock: 12968MCP6H04T-E/SL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC2274IDRG4 is determined by strict electrical and mechanical compatibility across the following critical parameters:

Mechanical Compatibility:

• Package type: 14-SOIC (0.154", 3.90mm Width)
• Mounting type: Surface Mount
• Pin count and configuration: 14 pins

Electrical Compatibility:

• Number of circuits: 4 independent amplifier circuits
• Output type: Rail-to-Rail capability
• Supply voltage range: Minimum 4.4 V to maximum 16 V
• Operating temperature range: -40°C to 125°C
• Output current per channel: 50 mA minimum

Functional Compatibility:

• Amplifier classification: General Purpose or CMOS
• Input bias current: 1 pA or lower
• Input offset voltage: 300 µV or lower
• Slew rate: 3.6 V/µs or higher
• Gain bandwidth product: 2.25 MHz or higher

Substitute parts must satisfy all mechanical requirements and maintain electrical parameters within acceptable operational ranges for the intended application circuit.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TLC2274IDR

The TLC2274IDR is the direct functional equivalent of the TLC2274IDRG4. Both devices share identical electrical specifications including slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, and output current ratings. The TLC2274IDR maintains the same 14-SOIC package configuration and operating temperature range of -40°C to 125°C. This part is currently in Active product status with 25,100 units in stock, providing immediate availability. The TLC2274IDR is ROHS3 compliant and carries MSL 1 rating, matching the original part's compliance profile. The primary difference is packaging format (Cut Tape & Digi-Reel versus the original's unspecified packaging), which does not affect electrical or mechanical compatibility.

Secondary Substitutes: LMC6084 Series (LMC6084AIM/NOPB, LMC6084IM/NOPB, LMC6084IMX/NOPB)

The LMC6084 series devices provide functional substitution with trade-offs in performance characteristics. All three variants maintain the 14-SOIC package and four-circuit configuration. The LMC6084 series offers superior input bias current (0.01 pA versus 1 pA) and lower input offset voltage (150 µV versus 300 µV). However, these devices exhibit reduced slew rate (1.5 V/µs versus 3.6 V/µs) and lower gain bandwidth product (1.3 MHz versus 2.25 MHz). The operating temperature range is limited to -40°C to 85°C, which may not satisfy applications requiring the full -40°C to 125°C range. Supply current is significantly lower at 2.2 mA across four channels. Output current per channel is reduced to 34 mA. The LMC6084AIM/NOPB is available in bulk packaging with Active status. The LMC6084IM/NOPB carries Last Time Buy status. The LMC6084IMX/NOPB is available in Tape & Reel format with Active status.

Tertiary Substitutes: MCP6H04 Series (MCP6H04-E/SL, MCP6H04T-E/SL)

The MCP6H04 series from Microchip Technology provides functional substitution with distinct performance characteristics. Both variants maintain the 14-SOIC package and four-circuit configuration with rail-to-rail output. The MCP6H04 series supports the full -40°C to 125°C operating temperature range and maintains 50 mA output current per channel. Supply voltage range extends to 3.5 V minimum, providing broader low-voltage compatibility. However, these devices exhibit significantly reduced slew rate (0.8 V/µs versus 3.6 V/µs) and lower gain bandwidth product (1.2 MHz versus 2.25 MHz). Input bias current is higher at 10 pA, and input offset voltage is substantially higher at 700 µV. Supply current is dramatically reduced to 135 µA across four channels. The MCP6H04-E/SL is available in tube packaging with 12,800 units in stock. The MCP6H04T-E/SL is available in Tape & Reel format with 12,900 units in stock. Both carry Active product status and ROHS3 compliance.

Selection Criteria:

For applications requiring identical electrical performance and maximum compatibility, select TLC2274IDR. For applications where reduced power consumption and improved input characteristics are beneficial and where reduced slew rate and bandwidth are acceptable, select from the LMC6084 series. For applications requiring extended low-voltage operation and minimal power consumption with acceptance of reduced dynamic performance, select from the MCP6H04 series. All recommended substitutes are ROHS3 compliant and carry MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can TLC2274IDR directly replace TLC2274IDRG4 without circuit modification?

A: Yes. The TLC2274IDR is electrically and mechanically identical to the TLC2274IDRG4. All electrical parameters including slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, and output current are identical. The 14-SOIC package configuration and pin assignments are unchanged. No circuit modification is required.

Q: What are the key differences between TLC2274IDRG4 and LMC6084 series devices?

A: The primary differences are slew rate (3.6 V/µs versus 1.5 V/µs), gain bandwidth product (2.25 MHz versus 1.3 MHz), input bias current (1 pA versus 0.01 pA), input offset voltage (300 µV versus 150 µV), supply current (4.8 mA versus 2.2 mA), output current per channel (50 mA versus 34 mA), and operating temperature range (-40°C to 125°C versus -40°C to 85°C). The LMC6084 series offers lower power consumption and superior input characteristics but reduced dynamic performance.

Q: Are MCP6H04 devices suitable for high-speed applications?

A: No. The MCP6H04 series exhibits significantly reduced slew rate (0.8 V/µs) and gain bandwidth product (1.2 MHz) compared to the TLC2274IDRG4 (3.6 V/µs and 2.25 MHz respectively). These devices are optimized for low-power operation and are not suitable for applications requiring high-speed signal processing or fast transient response.

Q: What is the significance of the operating temperature range difference?

A: The TLC2274IDRG4 and TLC2274IDR support -40°C to 125°C operation, while LMC6084 series devices are limited to -40°C to 85°C. Applications requiring operation above 85°C must use TLC2274IDR or MCP6H04 series devices. The MCP6H04 series maintains the full -40°C to 125°C range.

Q: Can packaging format differences affect circuit performance?

A: No. Packaging format differences (Cut Tape, Tube, Tape & Reel, Bulk) do not affect electrical or mechanical performance. These formats represent different distribution and handling methods. The 14-SOIC package configuration and pin assignments remain identical across all packaging formats.

Q: Which substitute offers the lowest power consumption?

A: The MCP6H04 series offers the lowest power consumption at 135 µA across four channels, compared to 4.8 mA for TLC2274IDRG4 and 2.2 mA for LMC6084 series. This represents approximately 35 times lower supply current than the original device.

Q: Are all recommended substitutes RoHS compliant?

A: Yes. All recommended substitutes (TLC2274IDR, LMC6084 series, and MCP6H04 series) are ROHS3 compliant. All carry MSL 1 (Unlimited) moisture sensitivity level rating.

Q: What is the primary limitation of LMC6084 series as a substitute?

A: The primary limitation is the reduced operating temperature range (-40°C to 85°C versus -40°C to 125°C). Applications requiring operation above 85°C cannot use LMC6084 series devices. Additionally, reduced slew rate and gain bandwidth product may limit suitability for high-frequency applications.

Q: Is the LMC6084IM/NOPB still available for new designs?

A: The LMC6084IM/NOPB carries Last Time Buy status, indicating limited availability. While 2,152 units are currently in stock, this part should not be selected for new designs. Use LMC6084AIM/NOPB or LMC6084IMX/NOPB for new applications.

Q: What supply voltage range is supported by all substitute options?

A: The common supply voltage range supported by all substitutes is 4.4 V to 15.5 V. The MCP6H04 series extends the minimum to 3.5 V. Applications requiring operation below 4.4 V must use MCP6H04 series devices.