OPA2333AIDRG4 Equivalent & Substitute Parts

Part Overview

The OPA2333AIDRG4 is a CMOS zero-drift operational amplifier manufactured by Texas Instruments, featuring two circuits in an 8-SOIC surface mount package. This device is designed for applications requiring ultra-low input offset voltage and minimal drift characteristics. The OPA2333AIDRG4 is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain compatibility with existing circuit designs while meeting the same electrical and mechanical specifications.

Key Parameters

Parameter	Value	Unit
Amplifier Type	CMOS, Zero-Drift	—
Number of Circuits	2	—
Output Type	Rail-to-Rail	—
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Voltage - Supply Span (Min)	1.8	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature	-40 to 125	°C
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the OPA2333AIDRG4 is determined by strict adherence to the following criteria:

Primary Substitution Criteria:

Package compatibility: 8-SOIC (0.154", 3.90mm Width)
Number of circuits: 2
Output type: Rail-to-Rail
Supply voltage range: Minimum 1.8 V, Maximum 5.5 V (or higher)
Operating temperature range: -40°C to 125°C (or wider)
Mounting type: Surface Mount
RoHS3 compliance and MSL 1 rating

Substitute parts are grouped into two categories:

Category 1: Direct Functional Replacement (Texas Instruments OPA2333 Series) OPA2333AIDR is the active production equivalent of OPA2333AIDRG4, featuring identical electrical specifications and packaging. This part differs only in packaging format (Cut Tape & Digi-Reel® versus the discontinued Digi-Reel® variant).

Category 2: Electrical Equivalents (Analog Devices AD8607/AD8617 Series) AD8607ARZ, AD8607ARZ-REEL, AD8607ARZ-REEL7, AD8617ARZ, and AD8617ARZ-REEL7 meet all mechanical and package requirements. These parts maintain the same 8-SOIC package, rail-to-rail output, dual-circuit configuration, and supply voltage compatibility. Electrical performance differs in specific parameters (slew rate, gain bandwidth product, input bias current, and input offset voltage), but all parts operate within the -40°C to 125°C temperature range and meet RoHS3 compliance.

Category 3: General Purpose Alternatives (Renesas ISL28230FBZ-T7A and Microchip MCP6002 Series) ISL28230FBZ-T7A, MCP6002-I/SN, and MCP6002T-I/SN satisfy package, circuit count, and supply voltage requirements. These general-purpose amplifiers provide rail-to-rail output in 8-SOIC packaging with extended supply voltage ranges. MCP6002 variants support supply voltages up to 6 V. Operating temperature for MCP6002 series is -40°C to 85°C, which is narrower than the OPA2333AIDRG4 specification.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (kHz)	Input Bias Current (pA)	Input Offset Voltage (µV)	Supply Current (µA)	Output Current (mA)	Temp Range (°C)	Product Status
OPA2333AIDRG4	Texas Instruments	CMOS, Zero-Drift	0.16	350	70	2	17	5	-40 to 125	Discontinued
OPA2333AIDR	Texas Instruments	CMOS, Zero-Drift	0.16	350	70	2	17	5	-40 to 125	Active
AD8607ARZ	Analog Devices Inc.	CMOS	0.1	400	0.2	12	40	70	-40 to 125	Active
AD8607ARZ-REEL	Analog Devices Inc.	CMOS	0.1	400	0.2	12	40	70	-40 to 125	Active
AD8607ARZ-REEL7	Analog Devices Inc.	CMOS	0.1	400	0.2	12	40	70	-40 to 125	Active
AD8617ARZ	Analog Devices Inc.	CMOS	0.1	400	0.2	400	38	80	-40 to 125	Active
AD8617ARZ-REEL7	Analog Devices Inc.	CMOS	0.1	400	0.2	400	38	80	-40 to 125	Active
ISL28230FBZ-T7A	Renesas Electronics Corporation	General Purpose	0.2	400	250	5	20	15	-40 to 125	Active
MCP6002-I/SN	Microchip Technology	General Purpose	0.6	1000	1	4500	100	23	-40 to 85	Active
MCP6002T-I/SN	Microchip Technology	General Purpose	0.6	1000	1	4500	100	23	-40 to 85	Active

Engineering Selection Recommendations

Tier 1 - Recommended Direct Replacement:

OPA2333AIDR is the primary substitute for OPA2333AIDRG4. This part is manufactured by Texas Instruments and maintains identical electrical specifications, including zero-drift amplifier topology, slew rate, gain bandwidth product, input offset voltage, and supply current characteristics. The only difference is packaging format (Cut Tape & Digi-Reel® versus the discontinued variant). This part is in active production status with 25,200 units in stock. RoHS3 compliance and MSL 1 rating are maintained.

Tier 2 - Electrical Equivalents with Enhanced Performance:

AD8607ARZ, AD8607ARZ-REEL, and AD8607ARZ-REEL7 (Analog Devices) provide superior electrical performance in key parameters: input bias current is reduced from 70 pA to 0.2 pA, and output current capability increases from 5 mA to 70 mA. Gain bandwidth product increases from 350 kHz to 400 kHz. Input offset voltage increases from 2 µV to 12 µV. All parts maintain the 8-SOIC package, dual-circuit configuration, rail-to-rail output, and -40°C to 125°C operating temperature range. These parts are in active production with high inventory availability (4,200 to 20,400 units).

AD8617ARZ and AD8617ARZ-REEL7 (Analog Devices) offer similar performance to AD8607 variants with higher output current capability (80 mA) and lower supply current (38 µA). Input offset voltage is 400 µV, which represents a significant deviation from the OPA2333AIDRG4 specification. These parts are suitable for applications where offset voltage tolerance is not critical. Active production status with 12,800 to 50,100 units in stock.

Tier 3 - General Purpose Alternatives:

ISL28230FBZ-T7A (Renesas) meets all mechanical and package requirements with active production status. This general-purpose amplifier maintains the -40°C to 125°C operating temperature range and supports the full 1.8 V to 5.5 V supply voltage span. Input offset voltage is 5 µV, and supply current is 20 µA. Output current is limited to 15 mA. Inventory is lower (1,136 units).

MCP6002-I/SN and MCP6002T-I/SN (Microchip Technology) provide the highest gain bandwidth product (1 MHz) and slew rate (0.6 V/µs) among all alternatives. These parts support extended supply voltage range up to 6 V. However, operating temperature range is limited to -40°C to 85°C, which does not meet the full OPA2333AIDRG4 specification of -40°C to 125°C. Input offset voltage is 4.5 mV, significantly higher than the OPA2333AIDRG4. Supply current is 100 µA. These parts are in active production with the highest inventory availability (83,881 to 241,240 units).

All substitute parts are RoHS3 compliant with MSL 1 rating, meeting environmental and reliability requirements.

Frequently Asked Questions (FAQ)

Q1: Can OPA2333AIDR be used as a direct replacement for OPA2333AIDRG4?

A: Yes. OPA2333AIDR is the active production equivalent manufactured by Texas Instruments with identical electrical specifications. The parts differ only in packaging format. Both are RoHS3 compliant with MSL 1 rating and support the same -40°C to 125°C operating temperature range.

Q2: What are the key differences between OPA2333AIDRG4 and AD8607ARZ?

A: Both parts are dual-circuit CMOS amplifiers in 8-SOIC packaging with rail-to-rail output and identical supply voltage range (1.8 V to 5.5 V). The AD8607ARZ has superior input bias current (0.2 pA versus 70 pA) and higher output current capability (70 mA versus 5 mA). The OPA2333AIDRG4 has lower input offset voltage (2 µV versus 12 µV) and lower supply current (17 µA versus 40 µA). Both support -40°C to 125°C operation.

Q3: Why is the operating temperature range important for substitution?

A: The OPA2333AIDRG4 operates from -40°C to 125°C. Substitute parts must support this full range to ensure circuit performance across all environmental conditions. MCP6002 variants are limited to -40°C to 85°C and are not suitable for applications requiring operation above 85°C.

Q4: Can MCP6002 series replace OPA2333AIDRG4 in all applications?

A: MCP6002 series parts meet the 8-SOIC package, dual-circuit, and rail-to-rail output requirements. However, the operating temperature range is limited to -40°C to 85°C, which does not cover the full OPA2333AIDRG4 specification. Additionally, input offset voltage is 4.5 mV, significantly higher than the OPA2333AIDRG4 (2 µV). These parts are suitable only for applications with relaxed temperature and offset voltage requirements.

Q5: What is the difference between AD8607ARZ, AD8607ARZ-REEL, and AD8607ARZ-REEL7?

A: These three part numbers are electrically identical. The differences are in packaging format: AD8607ARZ is supplied in Tube packaging, while AD8607ARZ-REEL and AD8607ARZ-REEL7 are supplied in Cut Tape & Digi-Reel® format. Selection depends on assembly process requirements and inventory management preferences.

Q6: Is the 8-SOIC package pinout identical across all substitute parts?

A: All substitute parts use the 8-SOIC (0.154", 3.90mm Width) package. Pinout compatibility must be verified against the specific datasheet for each manufacturer, as pinout assignments may differ between Texas Instruments, Analog Devices, Renesas, and Microchip devices.

Q7: Which substitute part offers the best balance of performance and availability?

A: OPA2333AIDR provides the best direct replacement with identical specifications and active production status. For applications where enhanced performance is acceptable, AD8607ARZ-REEL7 offers superior input bias current and output current capability with the highest inventory availability (20,400 units) among Analog Devices alternatives.

Q8: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, meeting environmental and reliability standards equivalent to the OPA2333AIDRG4.

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