AD8519ART-REEL Equivalent & Substitute Parts

Part Overview

The AD8519ART-REEL is a general purpose operational amplifier manufactured by Analog Devices Inc., housed in a SOT-23-5 surface mount package. This device features rail-to-rail output capability and is designed for single-circuit amplification applications. The AD8519ART-REEL is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity. Substitute parts must maintain functional compatibility across critical electrical parameters including supply voltage range, output type, package configuration, and operating temperature specifications.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	1	—
Output Type	Rail-to-Rail	—
Slew Rate	2.9	V/µs
Gain Bandwidth Product	8	MHz
Current - Input Bias	300	nA
Voltage - Input Offset	600	µV
Current - Supply	600	µA
Current - Output / Channel	25	mA
Voltage - Supply Span (Min)	2.7	V
Voltage - Supply Span (Max)	12	V
Operating Temperature	-40 to 125	°C
Package / Case	SC-74A, SOT-753	—
Mounting Type	Surface Mount	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the AD8519ART-REEL are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Critical Matching Parameters:

Output Type: Rail-to-Rail (required for all substitutes)
Number of Circuits: 1 (single amplifier configuration)
Package / Case: SOT-23-5 or TSOT-23-5 (surface mount, pin-compatible)
Voltage - Supply Span: Minimum 2.7 V to Maximum 12 V (operational range overlap)
Mounting Type: Surface Mount

Secondary Compatibility Parameters:

Slew Rate: Minimum 2.5 V/µs (meets or exceeds original specification)
Gain Bandwidth Product: Minimum 8 MHz (meets or exceeds original specification)
Current - Input Bias: Maximum 300 nA (meets or exceeds original specification)
Current - Output / Channel: Minimum 25 mA (meets or exceeds original specification)

The LT1797 series (LT1797CS5#TRMPBF, LT1797CS5#TRPBF, LT1797IS5#TR, LT1797IS5#TRM, LT1797IS5#TRMPBF, LT1797IS5#TRPBF) from Analog Devices Inc. provides direct functional substitution with active product status and enhanced electrical performance. The TSH80IYLT from STMicroelectronics offers an alternative from a different manufacturer with significantly improved performance characteristics and automotive-grade qualification.

Parameter Comparison

Parameter	AD8519ART-REEL	LT1797CS5#TRMPBF	LT1797CS5#TRPBF	LT1797IS5#TR	LT1797IS5#TRM	LT1797IS5#TRMPBF	LT1797IS5#TRPBF	TSH80IYLT
Amplifier Type	General Purpose	Standard	Standard	Standard	Standard	Standard	Standard	General Purpose
Number of Circuits	1	1	1	1	1	1	1	1
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Slew Rate (V/µs)	2.9	2.5	2.5	2.5	2.5	2.5	2.5	118
Gain Bandwidth Product (MHz)	8	11	11	11	11	11	11	65
Current - Input Bias (nA)	300	150	150	150	150	150	150	6000
Voltage - Input Offset (µV)	600	1000	1000	1000	1000	1000	1000	800
Current - Supply (mA)	0.6	1.4	1.4	1.4	1.4	1.4	1.4	9.8
Current - Output / Channel (mA)	25	50	50	50	50	50	50	55
Voltage - Supply Span Min (V)	2.7	2.7	2.7	2.7	2.7	2.7	2.7	4.5
Voltage - Supply Span Max (V)	12	12	12	12	12	12	12	12
Operating Temperature (°C)	-40 to 125	0 to 70	0 to 70	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Package / Case	SC-74A, SOT-753	SOT-23-5 Thin, TSOT-23-5	SOT-23-5 Thin, TSOT-23-5	SOT-23-5 Thin, TSOT-23-5	SOT-23-5 Thin, TSOT-23-5	SOT-23-5 Thin, TSOT-23-5	SOT-23-5 Thin, TSOT-23-5	SC-74A, SOT-753
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active
RoHS Status	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Manufacturer	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	STMicroelectronics

Engineering Selection Recommendations

LT1797 Series (Analog Devices Inc.):

The LT1797 series represents the primary substitution path for the obsolete AD8519ART-REEL. All LT1797 variants maintain pin-compatible SOT-23-5 packaging and satisfy the critical electrical parameters required for direct replacement. The LT1797 series is manufactured by Analog Devices Inc., the same supplier as the original part, ensuring design continuity and supply chain consistency.

LT1797CS5#TRMPBF and LT1797CS5#TRPBF are suitable for applications with operating temperature requirements limited to 0°C to 70°C. These variants feature commercial-grade temperature specifications and are available in Tape & Reel packaging.

LT1797IS5#TR, LT1797IS5#TRM, LT1797IS5#TRMPBF, and LT1797IS5#TRPBF extend the operating temperature range to -40°C to 85°C, providing broader environmental coverage than the commercial-grade variants. These industrial-grade parts are recommended for applications requiring extended temperature operation. All LT1797IS5 variants are ROHS3 compliant and REACH unaffected.

TSH80IYLT (STMicroelectronics):

The TSH80IYLT provides an alternative from STMicroelectronics with significantly enhanced electrical performance. This part features a 65 MHz gain bandwidth product (compared to 8 MHz for the AD8519ART-REEL), 118 V/µs slew rate, and automotive-grade qualification (AEC-Q100). The TSH80IYLT operates across -40°C to 85°C and maintains the same SOT-23-5 package footprint. This option is suitable for applications requiring higher bandwidth and performance margins, or for designs targeting automotive-qualified component specifications.

The TSH80IYLT has a higher minimum supply voltage (4.5 V versus 2.7 V), which may restrict its use in low-voltage applications. Additionally, the higher supply current (9.8 mA versus 0.6 mA for the original part) and input bias current (6 µA versus 300 nA) should be evaluated for power-sensitive designs.

All substitute parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, matching the original part's environmental specifications.

Frequently Asked Questions (FAQ)

Q: Can the LT1797 series directly replace the AD8519ART-REEL without PCB modifications?

A: Yes. The LT1797 series maintains pin-compatible SOT-23-5 packaging with the AD8519ART-REEL. No PCB layout changes are required for mechanical substitution. Electrical performance is compatible across the specified operating voltage range (2.7 V to 12 V) and temperature range overlap (-40°C to 85°C for LT1797IS5 variants).

Q: What is the difference between LT1797CS5 and LT1797IS5 variants?

A: The primary difference is operating temperature range. LT1797CS5 variants operate from 0°C to 70°C (commercial grade), while LT1797IS5 variants operate from -40°C to 85°C (industrial grade). All other electrical parameters are identical. Select LT1797IS5 for applications requiring extended temperature operation or -40°C minimum temperature support.

Q: What do the suffixes #TRPBF and #TRMPBF indicate?

A: Both suffixes indicate Tape & Reel packaging format suitable for automated assembly. #TRPBF and #TRMPBF are packaging designations from Analog Devices Inc. and do not affect electrical performance. Selection between these variants depends on procurement and assembly process requirements.

Q: Is the TSH80IYLT suitable as a drop-in replacement for all AD8519ART-REEL applications?

A: The TSH80IYLT is pin-compatible and functionally compatible for most applications. However, two design considerations apply: (1) The minimum supply voltage is 4.5 V, restricting use in applications requiring 2.7 V to 4.4 V operation; (2) The supply current is 9.8 mA compared to 0.6 mA for the original part, which may impact power budget in battery-powered designs. Verify these parameters against your specific application requirements before substitution.

Q: Why does the AD8519ART-REEL have an obsolete status?

A: Obsolete status indicates the part is no longer manufactured or supported by Analog Devices Inc. The LT1797 series provides active, supported alternatives with equivalent or superior electrical performance and broader availability.

Q: Are all substitute parts RoHS compliant?

A: Yes. All LT1797 variants and the TSH80IYLT are ROHS3 compliant. The original AD8519ART-REEL RoHS status was not specified in the provided data. All substitutes meet current environmental compliance requirements.

Q: What is the inventory status of substitute parts?

A: LT1797 series variants have substantial inventory availability ranging from 991 to 6900 pieces. The TSH80IYLT has the highest inventory at 65,100 pieces. Consult current supplier inventory for real-time availability and lead time information.

Q: Can I use LT1797 parts in automotive applications?

A: LT1797 parts are standard industrial-grade components without automotive qualification. For automotive applications requiring AEC-Q100 qualification, the TSH80IYLT is the appropriate choice among the listed substitutes.

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