LT1007IS8 Equivalent & Substitute Parts

Part Overview

The LT1007IS8 is a general-purpose operational amplifier manufactured by Analog Devices Inc., designed for single-circuit applications in 8-SOIC surface mount packaging. This active product operates across a supply voltage range of 8V to 36V and maintains performance over the industrial temperature range of -40°C to 85°C. The device is ROHS3 compliant and carries unlimited moisture sensitivity rating (MSL 1), making it suitable for standard manufacturing environments.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained within the specified parameter tolerances. The LT1007IS8 operates with a gain bandwidth product of 8 MHz and slew rate of 2.5V/µs, establishing the baseline performance envelope for direct substitution candidates.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	1	—
Slew Rate	2.5	V/µs
Gain Bandwidth Product	8	MHz
Current - Input Bias	15	nA
Voltage - Input Offset	20	µV
Voltage - Supply Span (Min)	8	V
Voltage - Supply Span (Max)	36	V
Operating Temperature	-40 to 85	°C
Mounting Type	Surface Mount	—
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the LT1007IS8 is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

Gain Bandwidth Product: 8 MHz (baseline performance specification)
Slew Rate: 2.5V/µs (signal fidelity requirement)
Supply Voltage Range: Minimum 8V to Maximum 36V (power supply compatibility)
Input Bias Current: 15 nA (input impedance characteristic)
Input Offset Voltage: 20 µV (DC accuracy specification)
Operating Temperature: -40°C to 85°C (thermal operating envelope)

Mechanical Compatibility Criteria:

Package Type: 8-SOIC (0.154", 3.90mm Width) (PCB footprint compatibility)
Mounting Type: Surface Mount (assembly process compatibility)
Number of Circuits: 1 (functional architecture)

Substitute parts are classified into two categories: direct substitutes (identical electrical and mechanical specifications) and similar substitutes (compatible within specified parameter ranges but with performance variations).

Parameter Comparison

Parameter	LT1007IS8	LT1007IS8#PBF	OPA227UA	OPA277U	OPA277UA	OPA277UA/2K5
Manufacturer	Analog Devices	Analog Devices	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Amplifier Type	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose	General Purpose
Number of Circuits	1	1	1	1	1	1
Slew Rate (V/µs)	2.5	2.5	2.3	0.8	0.8	0.8
Gain Bandwidth Product (MHz)	8	8	8	1	1	1
Current - Input Bias (nA)	15	15	2.5	500 pA	500 pA	500 pA
Voltage - Input Offset (µV)	20	20	10	10	20	20
Voltage - Supply Span Min (V)	8	8	5	4	4	4
Voltage - Supply Span Max (V)	36	36	36	36	36	36
Operating Temperature (°C)	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)

Engineering Selection Recommendations

Direct Substitute:

LT1007IS8#PBF is a direct substitute for LT1007IS8. Both devices are manufactured by Analog Devices Inc. and maintain identical electrical specifications across all critical parameters: 8 MHz gain bandwidth product, 2.5V/µs slew rate, 15 nA input bias current, and 20 µV input offset voltage. Both operate across the 8V to 36V supply range and the -40°C to 85°C temperature envelope. The devices are packaged in 8-SOIC surface mount configuration. The primary distinction is packaging format: LT1007IS8 is supplied in standard packaging while LT1007IS8#PBF is supplied in tube packaging. Both maintain ROHS3 compliance and MSL 1 rating. Selection between these two is determined by procurement and assembly requirements.

Similar Substitutes:

OPA227UA (Texas Instruments) maintains compatibility with the LT1007IS8 across the 8 MHz gain bandwidth product specification and 8-SOIC package format. The OPA227UA operates across a 5V to 36V supply range (lower minimum than the LT1007IS8) and maintains the -40°C to 85°C operating temperature range. The slew rate is 2.3V/µs, which is marginally lower than the LT1007IS8 specification of 2.5V/µs. Input bias current is 2.5 nA (lower than 15 nA), and input offset voltage is 10 µV (lower than 20 µV). The OPA227UA carries MSL 3 rating (168 hours), requiring controlled moisture exposure during storage and assembly. ROHS3 compliance is maintained.

OPA277U, OPA277UA, and OPA277UA/2K5 (Texas Instruments) are similar substitutes with reduced performance specifications. These devices operate at 1 MHz gain bandwidth product and 0.8V/µs slew rate, representing significant reductions from the LT1007IS8 baseline of 8 MHz and 2.5V/µs. All three variants maintain 8-SOIC surface mount packaging and -40°C to 85°C operating temperature range. Supply voltage range is 4V to 36V. Input bias current is 500 pA (substantially lower than 15 nA), and input offset voltage is 10 µV to 20 µV. These devices carry MSL 3 rating and ROHS3 compliance. The OPA277UA/2K5 variant is supplied in cut tape and Digi-Reel packaging format with the highest inventory availability (26,778 pieces).

Selection of OPA277 series devices is appropriate only when the reduced bandwidth and slew rate specifications are compatible with the application requirements. These devices are not suitable for applications requiring the full 8 MHz bandwidth or 2.5V/µs slew rate performance of the LT1007IS8.

Frequently Asked Questions (FAQ)

Q: Can LT1007IS8#PBF be used as a direct replacement for LT1007IS8?

A: Yes. LT1007IS8#PBF is a direct substitute. Both devices are manufactured by Analog Devices Inc. with identical electrical specifications and 8-SOIC surface mount packaging. The difference is packaging format: standard versus tube. No circuit modifications are required.

Q: What is the primary difference between LT1007IS8 and OPA227UA?

A: Both devices share the 8 MHz gain bandwidth product and 8-SOIC package format. The OPA227UA has a lower minimum supply voltage (5V versus 8V) and slightly reduced slew rate (2.3V/µs versus 2.5V/µs). The OPA227UA has lower input bias current (2.5 nA versus 15 nA) and lower input offset voltage (10 µV versus 20 µV). The OPA227UA carries MSL 3 rating, requiring controlled moisture handling during assembly.

Q: Why are OPA277U, OPA277UA, and OPA277UA/2K5 listed as substitutes if they have lower bandwidth?

A: These devices are listed as similar substitutes based on package compatibility and general-purpose amplifier classification. However, the 1 MHz gain bandwidth product and 0.8V/µs slew rate represent substantial performance reductions from the LT1007IS8 baseline of 8 MHz and 2.5V/µs. These devices are suitable only for applications where reduced bandwidth is acceptable.

Q: What does MSL 3 (168 Hours) mean for the Texas Instruments devices?

A: MSL 3 indicates Moisture Sensitivity Level 3, which specifies that the device can be exposed to moisture for a maximum of 168 hours (7 days) after the package is opened before assembly. The LT1007IS8 and LT1007IS8#PBF carry MSL 1 (unlimited), requiring no moisture control. MSL 3 devices require controlled storage conditions and may require baking before assembly if moisture exposure limits are exceeded.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts—LT1007IS8#PBF, OPA227UA, OPA277U, OPA277UA, and OPA277UA/2K5—are ROHS3 compliant. All devices are also REACH unaffected and carry EAR99 export classification.

Q: What is the difference between OPA277UA and OPA277UA/2K5?

A: OPA277UA and OPA277UA/2K5 are electrically identical. The primary difference is packaging format and availability. OPA277UA is supplied in tube packaging with 3,960 pieces in stock. OPA277UA/2K5 is supplied in cut tape and Digi-Reel format with 26,778 pieces in stock. The "/2K5" designation indicates the Digi-Reel packaging configuration.

Q: Can I substitute OPA227UA for LT1007IS8 in a high-speed application?

A: OPA227UA is compatible with the LT1007IS8 for applications requiring 8 MHz bandwidth. The slew rate difference (2.3V/µs versus 2.5V/µs) is marginal. However, the lower minimum supply voltage (5V versus 8V) must be verified against your circuit design. The MSL 3 moisture sensitivity requirement must be accommodated in your manufacturing process.

Q: Which substitute has the best input offset voltage specification?

A: OPA227UA and OPA277U both specify 10 µV input offset voltage, compared to 20 µV for the LT1007IS8. OPA277UA and OPA277UA/2K5 specify 20 µV, matching the LT1007IS8. Lower input offset voltage reduces DC error in precision applications.

Q: Which substitute has the lowest input bias current?

A: OPA277U, OPA277UA, and OPA277UA/2K5 all specify 500 pA input bias current, substantially lower than the LT1007IS8 specification of 15 nA. OPA227UA specifies 2.5 nA. Lower input bias current reduces input impedance loading effects in high-impedance circuits.

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