THS3110IDR Equivalent & Substitute Parts

Part Overview

The THS3110IDR is a current feedback amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This single-circuit operational amplifier is designed for high-speed signal processing applications requiring 1300 V/µs slew rate and 100 MHz bandwidth. The device is Active status and ROHS3 compliant, suitable for production environments. Equivalent and substitute parts are identified when design requirements permit operation within specified electrical and mechanical parameter ranges, or when packaging alternatives are acceptable for manufacturing processes.

Substiute Parts

THS3110IDR
Texas InstrumentsIn Stock: 1030THS3110IDR Datasheet
THS3110IDR
Current Part
LT1223CS8#PBF
Analog Devices Inc.In Stock: 1258LT1223CS8#PBF Datasheet
LT1223CS8#PBF
MFR Recommended
LT1228CS8#PBF
Analog Devices Inc.In Stock: 1406LT1228CS8#PBF Datasheet
LT1228CS8#PBF
MFR Recommended
LT1228CS8#TRPBF
Analog Devices Inc.In Stock: 1501LT1228CS8#TRPBF Datasheet
LT1228CS8#TRPBF
MFR Recommended
LT1228IS8#PBF
Analog Devices Inc.In Stock: 27895LT1228IS8#PBF Datasheet
LT1228IS8#PBF
MFR Recommended
LT1252CS8#PBF
Analog Devices Inc.In Stock: 1196LT1252CS8#PBF Datasheet
LT1252CS8#PBF
MFR Recommended

Key Parameters

Parameter Value Unit
Amplifier Type Current Feedback
Number of Circuits 1
Slew Rate 1300 V/µs
-3dB Bandwidth 100 MHz
Current - Input Bias 1.5 µA
Voltage - Input Offset 3 mV
Current - Supply 4.8 mA
Current - Output / Channel 260 mA
Voltage - Supply Span (Min) 10 V
Voltage - Supply Span (Max) 30 V
Operating Temperature -40 to 85 °C
Package / Case 8-SOIC (0.154", 3.90mm Width)
Mounting Type Surface Mount
RoHS Status ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the THS3110IDR is determined by the following criteria:

Primary Substitution Parameters:

  • Amplifier Type: Current Feedback (required match)
  • Number of Circuits: 1 (required match)
  • Package / Case: 8-SOIC form factor (required match)
  • Mounting Type: Surface Mount (required match)
  • Operating Temperature Range: Must encompass or match the application requirement
  • Voltage Supply Range: Must accommodate the circuit supply voltages
  • Slew Rate and Bandwidth: Must meet or exceed application performance requirements

Secondary Compatibility Factors:

  • RoHS and REACH compliance status
  • Moisture Sensitivity Level (MSL)
  • Current supply and output specifications

The substitute parts listed below satisfy the primary substitution parameters. Packaging format (Tube vs. Tape & Reel) represents a manufacturing logistics variation and does not affect electrical compatibility.

Parameter Comparison

Parameter THS3110IDR LT1223CS8#PBF LT1228CS8#PBF LT1228CS8#TRPBF LT1228IS8#PBF LT1252CS8#PBF
Manufacturer Texas Instruments Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Amplifier Type Current Feedback Current Feedback Current Feedback Current Feedback Current Feedback Current Feedback
Number of Circuits 1 1 1 1 1 1
Slew Rate (V/µs) 1300 1300 3500 3500 3500 125
-3dB Bandwidth (MHz) 100 100 100 100 100 282
Current - Input Bias (µA) 1.5 1 10 10 10
Voltage - Input Offset (mV) 3 1 3 3 3
Current - Supply (mA) 4.8 6 6 6 6 8.5
Current - Output / Channel (mA) 260 125 125 55
Voltage - Supply Span Min (V) 10 8 4 4 4 4 (single) / ±2 (dual)
Voltage - Supply Span Max (V) 30 36 36 36 36 28 (single) / ±14 (dual)
Operating Temperature (°C) -40 to 85 0 to 70 0 to 70 0 to 70 -40 to 85
Package / Case 8-SOIC 8-SOIC 8-SOIC 8-SOIC 8-SOIC 8-SOIC
Packaging Format Tape & Reel (TR) Tube Tube Tape & Reel (TR) Tube Tube
RoHS Status ROHS3 Compliant ROHS3 Compliant ROHS3 Compliant ROHS3 Compliant ROHS3 Compliant ROHS3 Compliant
Product Status Active Active Active Active Active Active

Engineering Selection Recommendations

LT1223CS8#PBF (Analog Devices Inc.)

This substitute matches the THS3110IDR in slew rate (1300 V/µs) and bandwidth (100 MHz). It operates within the supply voltage range of 8 V to 36 V, which encompasses the THS3110IDR requirement of 10 V to 30 V. The operating temperature range is 0°C to 70°C, which is narrower than the THS3110IDR (-40°C to 85°C). Selection of this part requires verification that the application does not require operation below 0°C or above 70°C. All compliance certifications (ROHS3, REACH Unaffected) match the main part. Packaging is Tube format.

LT1228CS8#PBF and LT1228CS8#TRPBF (Analog Devices Inc.)

Both variants feature higher slew rate (3500 V/µs) and identical bandwidth (100 MHz) compared to the THS3110IDR. Supply voltage range is 4 V to 36 V, which exceeds the THS3110IDR specification. Operating temperature is 0°C to 70°C, requiring the same temperature range verification as LT1223CS8#PBF. The LT1228CS8#TRPBF is available in Tape & Reel packaging, matching the THS3110IDR format. Both are ROHS3 compliant. The LT1228CS8#PBF is supplied in Tube format.

LT1228IS8#PBF (Analog Devices Inc.)

This part provides the widest operating temperature range (-40°C to 85°C), matching the THS3110IDR exactly. It features 3500 V/µs slew rate and 100 MHz bandwidth. Supply voltage range is 4 V to 36 V. Current output per channel is specified at 125 mA, lower than the THS3110IDR (260 mA). This part is suitable for applications requiring the full temperature range of the original device. ROHS3 compliant. Supplied in Tube format.

LT1252CS8#PBF (Analog Devices Inc.)

This part is a video amplifier variant with significantly higher bandwidth (282 MHz) but lower slew rate (125 V/µs). Supply voltage range is 4 V to 28 V (single supply) or ±2 V to ±14 V (dual supply). Current output is 55 mA. This part is suitable only for applications where the higher bandwidth is required and lower slew rate is acceptable. Operating temperature range is not specified in the provided data. ROHS3 compliant. Supplied in Tube format.

Selection Criteria Summary:

  • For applications requiring full temperature range (-40°C to 85°C): Select LT1228IS8#PBF
  • For applications with standard temperature range (0°C to 70°C) and Tape & Reel packaging: Select LT1228CS8#TRPBF
  • For applications matching original slew rate (1300 V/µs): Select LT1223CS8#PBF
  • For video or high-bandwidth applications: Select LT1252CS8#PBF only if slew rate reduction is acceptable

All substitute parts are Active status and ROHS3 compliant, suitable for production use.

Frequently Asked Questions (FAQ)

Q: Can LT1223CS8#PBF be used as a direct replacement for THS3110IDR in all applications?

A: LT1223CS8#PBF matches the THS3110IDR in slew rate and bandwidth. However, the operating temperature range differs: LT1223CS8#PBF operates 0°C to 70°C, while THS3110IDR operates -40°C to 85°C. Direct replacement is possible only if the application does not require operation outside the 0°C to 70°C range.

Q: What is the difference between LT1228CS8#PBF and LT1228CS8#TRPBF?

A: Both parts are electrically identical. The difference is packaging format: LT1228CS8#PBF is supplied in Tube format, while LT1228CS8#TRPBF is supplied in Tape & Reel (TR) format. Selection depends on manufacturing process requirements. Tape & Reel format is typically used for automated assembly lines.

Q: Why does LT1252CS8#PBF have lower slew rate than the THS3110IDR?

A: LT1252CS8#PBF is designed as a video amplifier with emphasis on bandwidth (282 MHz) rather than slew rate. The 125 V/µs slew rate is characteristic of this product category. This part is suitable only for applications where high bandwidth is the primary requirement and slew rate is not a limiting factor.

Q: Is LT1228IS8#PBF suitable for military or extended temperature applications?

A: LT1228IS8#PBF operates across -40°C to 85°C, matching the THS3110IDR temperature range. This makes it suitable for applications requiring extended temperature operation. However, military qualification or screening is not indicated in the provided specifications. Consult the manufacturer for military-grade variants if required.

Q: Can I use LT1228CS8#TRPBF in place of THS3110IDR if my circuit operates at 5°C?

A: No. LT1228CS8#TRPBF minimum operating temperature is 0°C. Operation at 5°C is within specification. However, if your application requires guaranteed operation below 0°C, this part is not suitable. LT1228IS8#PBF is rated to -40°C and is the appropriate choice.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (LT1223CS8#PBF, LT1228CS8#PBF, LT1228CS8#TRPBF, LT1228IS8#PBF, and LT1252CS8#PBF) are ROHS3 compliant and REACH unaffected, matching the THS3110IDR compliance status.

Q: What is the significance of the 8-SOIC package specification?

A: The 8-SOIC (Small Outline Integrated Circuit) package is a surface mount form factor with 0.154 inches (3.90 mm) width. All substitute parts use the same 8-SOIC package, ensuring mechanical and electrical compatibility with existing PCB layouts and sockets. No board redesign is required.

Q: If I need higher output current than THS3110IDR (260 mA), which substitute should I use?

A: None of the listed substitutes provide higher output current. LT1228CS8#TRPBF and LT1228IS8#PBF provide 125 mA, and LT1252CS8#PBF provides 55 mA. If output current exceeding 260 mA is required, alternative amplifier families must be evaluated outside this substitute list.

Q: Can I mix packaging formats (Tube and Tape & Reel) in the same production run?

A: Electrically, yes. Both formats contain identical parts. However, manufacturing processes typically standardize on one format for a given production run to maintain consistent handling and assembly procedures. Consult your manufacturing and procurement departments regarding format standardization requirements.

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