AD8063ARTZ-R2 Equivalent & Substitute Parts

Part Overview

The AD8063ARTZ-R2 is a voltage feedback operational amplifier manufactured by Analog Devices Inc., designed for single-circuit rail-to-rail applications in a SOT-23-6 surface mount package. This device is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives. The AD8063ARTZ-R2 operates across a 2.7 V to 8 V supply range with a slew rate of 650 V/µs and -3dB bandwidth of 320 MHz, making it suitable for high-speed signal conditioning and amplification circuits.

Key Parameters

Parameter	Value	Unit
Amplifier Type	Voltage Feedback	—
Number of Circuits	1	—
Output Type	Rail-to-Rail	—
Slew Rate	650	V/µs
-3dB Bandwidth	320	MHz
Current - Input Bias	3.5	µA
Voltage - Input Offset	1	mV
Current - Supply	6.8	mA
Current - Output / Channel	50	mA
Voltage - Supply Span (Min)	2.7	V
Voltage - Supply Span (Max)	8	V
Operating Temperature	-40 to 85	°C
Mounting Type	Surface Mount	—
Package / Case	SOT-23-6	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the AD8063ARTZ-R2 is determined by compatibility across the following critical parameters: single-circuit configuration, rail-to-rail output capability, SOT-23-6 package format, surface mount technology, and operating temperature range. The substitute parts are grouped into two categories based on amplifier topology and performance characteristics:

Category 1: High-Speed Feedback Amplifiers (LTC6268 Series) The LTC6268HS6#TRMPBF, LTC6268HS6#TRPBF, LTC6268IS6#TRMPBF, and LTC6268IS6#TRPBF are J-FET input amplifiers with -3dB bandwidth of 350 MHz and slew rate of 400 V/µs. These devices maintain rail-to-rail output, single-circuit configuration, and SOT-23-6 packaging. The LTC6268 series operates across 3.1 V to 5.25 V supply range with extended temperature capability to 125°C in certain variants.

Category 2: General Purpose Amplifiers (OPA355 and MCP6043 Series) The OPA355NA/3K and OPA355NA/250 are CMOS amplifiers with -3dB bandwidth of 450 MHz and slew rate of 360 V/µs. The MCP6043T-E/CH and MCP6043T-I/CH are general purpose amplifiers with lower bandwidth (14 kHz) and slew rate (0.003 V/µs). All maintain single-circuit, rail-to-rail, SOT-23-6 configuration with surface mount technology.

Substitution eligibility is based on: (1) identical package format (SOT-23-6), (2) single-circuit topology, (3) rail-to-rail output capability, (4) surface mount mounting type, and (5) overlapping or extended operating temperature ranges.

Parameter Comparison

Parameter	AD8063ARTZ-R2	LTC6268HS6#TRMPBF	LTC6268IS6#TRMPBF	OPA355NA/3K	OPA355NA/250	MCP6043T-I/CH
Amplifier Type	Voltage Feedback	J-FET	J-FET	CMOS	CMOS	General Purpose
Number of Circuits	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
Slew Rate (V/µs)	650	400	400	360	360	0.003
-3dB Bandwidth (MHz)	320	350	350	450	450	—
Current - Input Bias (pA/µA)	3.5 µA	4 pA	0.9 pA	3 pA	3 pA	1 pA
Voltage - Input Offset (mV)	1	0.2	0.2	2	2	3
Current - Supply (mA)	6.8	16.5	16.5	8.3	8.3	0.6
Current - Output / Channel (mA)	50	—	—	100	100	20
Voltage - Supply Span Min (V)	2.7	3.1	3.1	2.7	2.7	1.4
Voltage - Supply Span Max (V)	8	5.25	5.25	5.5	5.5	6
Operating Temperature (°C)	-40 to 85	-40 to 125	-40 to 85	-40 to 125	-40 to 125	-40 to 85
Package / Case	SOT-23-6	TSOT-23-6	TSOT-23-6	SOT-23-6	SOT-23-6	SOT-23-6
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
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	2 (1 Year)	2 (1 Year)	1 (Unlimited)

Engineering Selection Recommendations

For High-Speed Applications (320+ MHz Bandwidth Requirement)

The OPA355NA/3K and OPA355NA/250 are suitable substitutes when bandwidth performance of 450 MHz is acceptable. Both devices are active products with ROHS3 compliance and extended temperature operation to 125°C. The OPA355NA/3K offers higher inventory availability (35,300 units) compared to OPA355NA/250 (2,152 units). These CMOS amplifiers provide higher output current capability (100 mA) than the original device (50 mA) and operate across the 2.7 V to 5.5 V supply range, which overlaps with the AD8063ARTZ-R2 minimum specification.

For Low Input Bias Current Applications

The LTC6268IS6#TRMPBF provides the lowest input bias current (0.9 pA) among all substitutes and maintains the -40°C to 85°C operating temperature range of the original device. This J-FET amplifier is an active product with ROHS3 compliance and high inventory availability (100,400 units). The 350 MHz bandwidth and 400 V/µs slew rate are slightly lower than the original but remain suitable for most high-speed signal conditioning applications. Supply voltage range is 3.1 V to 5.25 V, which requires verification against circuit design specifications.

For Ultra-Low Power Applications

The MCP6043T-I/CH is an active general purpose amplifier with the lowest supply current (0.6 mA) and operates across 1.4 V to 6 V supply range. This device is suitable only for applications where bandwidth and slew rate requirements are significantly relaxed, as it provides 14 kHz bandwidth and 0.003 V/µs slew rate. ROHS3 compliance and MSL 1 rating are provided.

For Extended Temperature Range (to 125°C)

The LTC6268HS6#TRMPBF and OPA355NA/3K both support -40°C to 125°C operating range. The LTC6268HS6#TRMPBF is a J-FET amplifier with 350 MHz bandwidth, while OPA355NA/3K is a CMOS amplifier with 450 MHz bandwidth. Both are active products with ROHS3 compliance.

All substitute parts maintain SOT-23-6 packaging, single-circuit configuration, rail-to-rail output, and surface mount technology. Product status verification confirms all listed substitutes are active at the time of this documentation.

Frequently Asked Questions (FAQ)

Q: Can the LTC6268 series directly replace the AD8063ARTZ-R2 in all applications?

A: The LTC6268 series maintains package compatibility (SOT-23-6), single-circuit topology, and rail-to-rail output. However, the supply voltage range differs: LTC6268 operates 3.1 V to 5.25 V versus AD8063ARTZ-R2 at 2.7 V to 8 V. Circuit design must verify that the narrower supply range is acceptable. Slew rate is lower (400 V/µs versus 650 V/µs) and input bias current is significantly lower (4 pA to 0.9 pA versus 3.5 µA).

Q: What is the difference between TSOT-23-6 and SOT-23-6 packaging?

A: TSOT-23-6 is a thin variant of SOT-23-6. Both are 6-pin surface mount packages with identical pin configurations and footprints. TSOT-23-6 has reduced package height, which may affect PCB assembly clearance in space-constrained designs. Verify PCB layout compatibility before substitution.

Q: Why does the OPA355NA series have higher bandwidth than the original AD8063ARTZ-R2?

A: The OPA355NA series achieves 450 MHz -3dB bandwidth through CMOS input stage design, compared to the voltage feedback topology of AD8063ARTZ-R2 (320 MHz). Higher bandwidth does not preclude substitution; circuit stability and compensation networks must be re-evaluated for the different frequency response characteristics.

Q: Is the MCP6043T-I/CH suitable for high-speed applications?

A: No. The MCP6043T-I/CH provides 14 kHz bandwidth and 0.003 V/µs slew rate, which are orders of magnitude lower than the AD8063ARTZ-R2 (320 MHz, 650 V/µs). This device is suitable only for low-frequency signal conditioning, precision measurement, and ultra-low power applications where bandwidth is not a constraint.

Q: What does MSL 2 (1 Year) mean for the OPA355NA series?

A: Moisture Sensitivity Level 2 indicates the device requires controlled storage conditions with maximum 1-year shelf life after moisture barrier bag opening. The original AD8063ARTZ-R2 has MSL 1 (Unlimited), which allows indefinite storage. OPA355NA devices require more stringent handling and storage protocols to prevent moisture absorption during assembly.

Q: Can I use the LTC6268HS6#TRPBF instead of LTC6268HS6#TRMPBF?

A: Both devices have identical electrical specifications. The difference is packaging: TRMPBF is Cut Tape & Digi-Reel format, while TRPBF is standard Tape & Reel format. Selection depends on procurement and assembly requirements. Electrical performance and pin configuration are identical.

Q: What is the impact of lower input bias current in LTC6268IS6#TRMPBF?

A: Input bias current of 0.9 pA (versus 3.5 µA in AD8063ARTZ-R2) reduces input offset voltage drift and improves precision in high-impedance input circuits. This is advantageous for transimpedance amplifier designs and precision instrumentation. No negative impact exists; this represents improved performance for most applications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant status. The original AD8063ARTZ-R2 RoHS status is not specified in the provided data. Verify RoHS compliance requirements for your application before final selection.

Q: What is the significance of the higher output current in OPA355NA (100 mA) versus AD8063ARTZ-R2 (50 mA)?

A: Higher output current capability allows the OPA355NA to drive lower impedance loads or multiple stages without additional buffering. This is beneficial for applications requiring higher drive capability. If the original design does not require this capability, it does not affect substitution suitability.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message