LT1810CS8#PBF Equivalent & Substitute Parts

Part Overview

The LT1810CS8#PBF is a general purpose operational amplifier manufactured by Analog Devices Inc., featuring dual circuits in a rail-to-rail configuration. This active component is classified as a linear amplifier and is currently in active product status. The device is packaged in an 8-SOIC surface mount package with tube packaging for distribution.

Identifying equivalent and substitute parts is necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit operation with alternative circuit configurations while maintaining electrical performance within specified parameters.

Substiute Parts

LT1810CS8#PBF

Analog Devices Inc.In Stock: 1107LT1810CS8#PBF Datasheet

Current PartRFQ

LT1809CS8#PBF

Analog Devices Inc.In Stock: 1170LT1809CS8#PBF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LT1810CS8#PBF is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Slew Rate: 350 V/µs (must match)
• Gain Bandwidth Product: 180 MHz (must match)
• -3dB Bandwidth: 320 MHz (must match)
• Voltage - Input Offset: 800 µV (must match)
• Current - Output / Channel: 85 mA (must match)
• Voltage - Supply Span: 2.5 V to 12.6 V (must match)
• Operating Temperature Range: 0°C to 70°C (must match)
• Output Type: Rail-to-Rail (must match)

Mechanical Compatibility Criteria:

• Package / Case: 8-SOIC (0.154", 3.90mm Width) (must match)
• Mounting Type: Surface Mount (must match)

Compliance Criteria:

• RoHS Status: ROHS3 Compliant (must match)
• Moisture Sensitivity Level: 1 (Unlimited) (must match)

The LT1809CS8#PBF qualifies as a parametric equivalent substitute. While it differs in circuit count (1 circuit versus 2 circuits) and input bias current (12.5 µA versus 2 µA), all other electrical and mechanical parameters remain identical. This substitution is valid for applications requiring a single amplifier circuit with equivalent performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both the LT1810CS8#PBF and LT1809CS8#PBF maintain active product status with Analog Devices Inc., ensuring continued availability and technical support. Both components are ROHS3 compliant and carry identical moisture sensitivity ratings, meeting regulatory and environmental requirements for industrial and commercial applications.

The primary distinction between these components is circuit count and input bias current specification. The LT1810CS8#PBF provides dual amplifier circuits within a single package, while the LT1809CS8#PBF provides a single circuit. The LT1809CS8#PBF exhibits higher input bias current (12.5 µA versus 2 µA), which may affect circuit performance in high-impedance input applications.

Selection between these components depends on circuit architecture requirements. Applications requiring dual amplifier functionality must use the LT1810CS8#PBF. Applications requiring single amplifier operation with lower input bias current specifications must use the LT1810CS8#PBF. The LT1809CS8#PBF is suitable for single amplifier applications where the higher input bias current does not compromise system performance.

Both components share identical electrical performance in slew rate, bandwidth, output current capability, and supply voltage range, ensuring functional equivalence within their respective circuit configurations.

Frequently Asked Questions (FAQ)

Q: Can the LT1809CS8#PBF directly replace the LT1810CS8#PBF in all applications?

A: No. The LT1809CS8#PBF contains a single amplifier circuit, while the LT1810CS8#PBF contains dual circuits. Direct replacement is only possible in applications requiring single amplifier operation. Applications designed for dual amplifier functionality require the LT1810CS8#PBF.

Q: What is the significance of the input bias current difference between these parts?

A: The LT1810CS8#PBF specifies 2 µA input bias current, while the LT1809CS8#PBF specifies 12.5 µA. In high-impedance input circuits, the higher bias current of the LT1809CS8#PBF may introduce additional offset voltage and noise. Circuit design must account for this parameter when selecting between these components.

Q: Are both parts compatible with the same PCB footprint?

A: Yes. Both the LT1810CS8#PBF and LT1809CS8#PBF use identical 8-SOIC packaging with 0.154" width (3.90mm). Both are surface mount components with identical pin spacing and mechanical dimensions, allowing footprint compatibility.

Q: Do both parts operate across the same supply voltage range?

A: Yes. Both components operate across the identical supply voltage range of 2.5 V to 12.6 V and share the same operating temperature range of 0°C to 70°C.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both the LT1810CS8#PBF and LT1809CS8#PBF are ROHS3 compliant with identical moisture sensitivity levels (MSL 1 - Unlimited). Both carry active product status with Analog Devices Inc.

Q: What are the key electrical parameters that remain identical between these substitutes?

A: Slew rate (350 V/µs), gain bandwidth product (180 MHz), -3dB bandwidth (320 MHz), input offset voltage (800 µV), output current per channel (85 mA), and supply current (15 mA) are identical across both components.