LT1469CS8-2#PBF Equivalent & Substitute Parts

Part Overview

The LT1469CS8-2#PBF is a general purpose operational amplifier manufactured by Analog Devices Inc., featuring dual circuits in an 8-SOIC surface mount package. This device is classified as an active product with full RoHS3 compliance and unlimited moisture sensitivity rating. The LT1469CS8-2#PBF is specified for applications requiring high gain bandwidth product (200 MHz) and fast slew rate (30V/µs) performance in a compact form factor.

Substitute parts are necessary when the primary device becomes unavailable, when alternative sourcing is required for supply chain resilience, or when design flexibility permits selection from functionally equivalent alternatives that meet the same electrical and mechanical specifications.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	-
Number of Circuits	2	-
Slew Rate	30	V/µs
Gain Bandwidth Product	200	MHz
Current - Input Bias	3	nA
Voltage - Input Offset	50	µV
Current - Supply	4.1	mA (x2 Channels)
Current - Output / Channel	22	mA
Voltage - Supply Span (Min)	10	V
Voltage - Supply Span (Max)	30	V
Operating Temperature	0 to 70	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	-
Mounting Type	Surface Mount	-
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution of the LT1469CS8-2#PBF is determined by the following critical parameters:

Primary Substitution Criteria:

Amplifier Type: General Purpose
Number of Circuits: 2
Package / Case: 8-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount
Slew Rate: 30 V/µs (minimum acceptable performance)
Gain Bandwidth Product: 200 MHz (minimum acceptable performance)
Voltage - Supply Span: 10V to 30V operating range
Operating Temperature: 0°C to 70°C

Compliance Requirements:

RoHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts are grouped into two categories based on functional equivalence:

Category 1: Direct Performance Equivalents - Parts meeting or exceeding all electrical specifications within the defined operating parameters. These include MC33078DR2G and MC33078MDREP, which provide comparable slew rate and gain bandwidth product performance.

Category 2: Functional Alternatives - Parts with reduced performance specifications (lower slew rate, lower gain bandwidth product) but maintaining the same package, circuit count, and general purpose amplifier classification. These include LM258 variants (LM258DG4, LM258DR, LM258DRG3, LM258DRG4), which are suitable for applications not requiring the full performance envelope of the LT1469CS8-2#PBF.

Category 3: Specialized Alternatives - Audio-grade amplifiers with different performance characteristics. LM833M and LM833MX/NOPB are audio amplifiers with lower gain bandwidth product but higher slew rate, suitable only for audio-specific applications.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Circuits	Slew Rate (V/µs)	GBW (MHz)	Input Bias (nA)	Input Offset (µV)	Supply Current (mA)	Output Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Package	Status
LT1469CS8-2#PBF	Analog Devices	General Purpose	2	30	200	3	50	4.1	22	10	30	0 to 70	8-SOIC	Active
MC33078DR2G	onsemi	General Purpose	2	7	16	300	150	4.1	37	10	36	-40 to 85	8-SOIC	Active
MC33078MDREP	Texas Instruments	General Purpose	2	7	16	300	150	2.05	37	10	36	-55 to 125	8-SOIC	Last Time Buy
MC33072DR2G	onsemi	General Purpose	2	13	4.5	100	1	1.9	30	3	44	-40 to 85	8-SOIC	Active
MC34072DR2G	onsemi	General Purpose	2	13	4.5	100	1	1.9	30	3	44	0 to 70	8-SOIC	Active
LM258DG4	Texas Instruments	General Purpose	2	0.3	1.1	20	3000	0.5	40	3	32	-25 to 85	8-SOIC	Obsolete
LM258DR	UMW	General Purpose	2	-	-	45	2000	1	40	-	32	-25 to 85	8-SOIC	Active
LM258DRG3	Texas Instruments	General Purpose	2	0.3	0.7	20	3000	0.5	40	3	32	-25 to 85	8-SOIC	Last Time Buy
LM258DRG4	Texas Instruments	General Purpose	2	0.3	0.7	20	3000	0.5	40	3	32	-25 to 85	8-SOIC	Discontinued
LM833M	National Semiconductor	Audio	2	7	15	500	300	5	40	10	30	-40 to 85	8-SOIC	Active
LM833MX/NOPB	Texas Instruments	Audio	2	7	15	500	300	5	40	10	30	-40 to 85	8-SOIC	Active

Engineering Selection Recommendations

For Direct Performance Equivalence:

MC33078DR2G is recommended as the primary substitute when performance specifications can tolerate reduced slew rate (7 V/µs versus 30 V/µs) and gain bandwidth product (16 MHz versus 200 MHz). This device maintains the same supply voltage range (10V to 36V), offers extended operating temperature range (-40°C to 85°C), and is actively manufactured by onsemi with full RoHS3 compliance. Current inventory of 60,100 units ensures supply availability.

MC34072DR2G provides identical electrical performance to MC33078DR2G with operating temperature range matching the LT1469CS8-2#PBF (0°C to 70°C). This device is suitable for applications with temperature constraints aligned to the original specification. Active product status with 30,100 units in inventory.

For Cost-Optimized Substitution:

LM258DR (UMW) is an active product offering the lowest supply current (1 mA) and highest inventory availability (455,100 units). This device is suitable for power-sensitive applications where the reduced performance specifications (unspecified slew rate, unspecified gain bandwidth product) are acceptable. Extended supply voltage range to 32V and operating temperature range to -25°C to 85°C provide design flexibility.

LM258DRG3 (Texas Instruments) offers similar electrical characteristics to LM258DR with specified slew rate (0.3 V/µs) and gain bandwidth product (700 kHz). Last Time Buy status indicates limited future availability (30,200 units currently in stock).

For Audio Applications Only:

LM833M and LM833MX/NOPB are audio-grade amplifiers with 7 V/µs slew rate and 15 MHz gain bandwidth product. These devices are suitable only for audio signal processing applications and are not recommended for general purpose high-speed applications. Both devices maintain the 10V to 30V supply range and offer active product status with substantial inventory (17,551 and 50,200 units respectively).

Devices Not Recommended:

LM258DG4 (Obsolete status), LM258DRG4 (Discontinued at DiGi Electronics), and MC33078MDREP (Last Time Buy status) should be avoided for new designs due to product lifecycle status. These devices present supply chain risk and should be considered only for legacy system maintenance.

Frequently Asked Questions (FAQ)

Q: Can MC33078DR2G directly replace LT1469CS8-2#PBF in all applications?

A: MC33078DR2G is mechanically and electrically compatible in terms of package (8-SOIC), circuit count (2), and supply voltage range (10V to 36V). However, the reduced slew rate (7 V/µs versus 30 V/µs) and gain bandwidth product (16 MHz versus 200 MHz) make it unsuitable for high-speed signal processing applications. Substitution is valid only for applications where these reduced performance specifications are acceptable.

Q: What is the difference between LM258 variants (DG4, DR, DRG3, DRG4)?

A: All LM258 variants share the same base electrical specifications (0.3 V/µs slew rate, 700 kHz to 1.1 MHz gain bandwidth product) and 8-SOIC package. Differences exist in product status (Obsolete, Active, Last Time Buy, Discontinued), packaging format (Tube, Cut Tape, Digi-Reel), and manufacturer. LM258DR (UMW) is the only active product with current manufacturing support.

Q: Are LM833M and LM833MX/NOPB suitable for general purpose amplifier applications?

A: No. LM833M and LM833MX/NOPB are classified as audio amplifiers with optimized performance for audio frequency ranges. The 15 MHz gain bandwidth product and 7 V/µs slew rate are insufficient for general purpose high-speed applications. These devices are suitable only for audio signal processing, preamplifier stages, and audio frequency filtering applications.

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

A: The 8-SOIC (Small Outline Integrated Circuit) package with 0.154" width and 3.90mm width is a standard surface mount package for dual operational amplifiers. All substitute parts listed maintain this identical package specification, ensuring mechanical compatibility with existing printed circuit board layouts and assembly processes. No PCB redesign is required when substituting between parts with matching 8-SOIC package designation.

Q: Why do some substitute parts have wider operating temperature ranges than the LT1469CS8-2#PBF?

A: The LT1469CS8-2#PBF specifies 0°C to 70°C operating temperature. Substitute parts such as MC33078DR2G (-40°C to 85°C) and LM258 variants (-25°C to 85°C) have extended temperature ranges due to different design and qualification standards from their respective manufacturers. Extended temperature range does not affect substitution validity; the device will operate correctly within the narrower 0°C to 70°C range of the original specification.

Q: What does "Last Time Buy" product status mean for substitution planning?

A: Last Time Buy status indicates the manufacturer has announced end-of-life for the device and will accept orders only until a specified cutoff date. Devices with this status (LM258DRG3, MC33078MDREP) should not be selected for new designs. Existing inventory may be available for legacy system support, but long-term supply cannot be guaranteed.

Q: Is RoHS3 compliance maintained across all substitute parts?

A: Yes. All substitute parts listed in this reference maintain RoHS3 compliance and Moisture Sensitivity Level 1 (Unlimited) rating, matching the environmental and regulatory compliance of the LT1469CS8-2#PBF. This ensures compatibility with modern manufacturing processes and regulatory requirements.

Q: How do input bias current and input offset voltage affect substitution decisions?

A: Input bias current (3 nA for LT1469CS8-2#PBF) and input offset voltage (50 µV) determine precision and accuracy in signal conditioning applications. Substitute parts with higher values (e.g., LM258 variants with 20 nA bias current and 3 mV offset voltage) may introduce measurable errors in precision measurement circuits. Substitution is valid only when the application's accuracy requirements can tolerate the increased input-referred noise and offset specifications of the substitute device.

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