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TLV2422QDR Equivalent & Substitute Parts
Part Overview
The TLV2422QDR is a general-purpose operational amplifier manufactured by Texas Instruments, featuring dual circuits in a rail-to-rail configuration housed in an 8-SOIC surface mount package. This device is classified as Obsolete, indicating it is no longer in active production. The LinCMOS™ series design provides low-power operation suitable for battery-powered and portable applications across automotive and industrial environments.
Identification of equivalent and substitute parts is necessary due to the obsolete status of the TLV2422QDR. Alternative components with compatible electrical and mechanical specifications ensure design continuity and supply chain reliability for applications requiring dual-channel general-purpose amplification.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 2 | — |
| Output Type | Rail-to-Rail | — |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| Voltage - Supply Span (Min) | 2.7 | V |
| Voltage - Supply Span (Max) | 10 | V |
| Operating Temperature | -40°C ~ 125°C | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
| Grade | Automotive | — |
| Qualification | AEC-Q100 | — |
Substitute Part Grouping Explanation
Substitution of the TLV2422QDR is determined by strict compatibility across the following critical parameters:
Mechanical Compatibility: All substitute parts must use the 8-SOIC (0.154", 3.90mm Width) surface mount package to ensure PCB layout and assembly process compatibility.
Functional Compatibility: Substitute parts must provide dual-channel (2 circuits) general-purpose amplification with rail-to-rail output capability.
Electrical Compatibility: Substitute parts must operate within the supply voltage range of 2.7 V to 10 V minimum and accommodate the operating temperature range of -40°C to 125°C.
Compliance Requirements: All substitute parts must maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating to ensure regulatory and manufacturing process alignment.
Automotive Grade Consideration: The TLV2422QDR carries Automotive grade designation with AEC-Q100 qualification. Substitute parts with matching automotive qualification provide equivalent reliability assurance for automotive applications.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Slew Rate (V/µs) | Gain Bandwidth Product (MHz) | Current - Input Bias (pA/nA) | Voltage - Input Offset (µV/mV) | Current - Supply (µA/mA) | Current - Output / Channel (mA) | Voltage - Supply Span Min (V) | Voltage - Supply Span Max (V) | Operating Temperature (°C) | Automotive Grade | Package |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TLV2422QDR | Texas Instruments | Obsolete | 0.02 | 5.3 | 1 pA | 300 µV | 100 µA (x2) | 50 | 2.7 | 10 | -40 ~ 125 | Yes (AEC-Q100) | 8-SOIC |
| TLV2422IDR | Texas Instruments | Last Time Buy | 0.02 | 5.3 | 1 pA | 300 µV | 100 µA (x2) | 50 | 2.7 | 10 | -40 ~ 85 | No | 8-SOIC |
| AD8529ARZ | Analog Devices Inc. | Active | 2.9 | 8 | 300 nA | 600 µV | 600 µA (x2) | 25 | 2.7 | 12 | -40 ~ 125 | No | 8-SOIC |
| AD8529ARZ-REEL | Analog Devices Inc. | Active | 2.9 | 8 | 300 nA | 600 µV | 600 µA (x2) | 25 | 2.7 | 12 | -40 ~ 125 | No | 8-SOIC |
| MCP6H82-E/SN | Microchip Technology | Obsolete | 5 | 5.5 | 10 pA | 1 mV | 700 µA (x2) | 55 | 3.5 | 12 | -40 ~ 125 | No | 8-SOIC |
| TS922ID | STMicroelectronics | Active | 1.3 | 4 | 15 nA | 3 mV | 2 mA | 80 | 2.7 | 12 | -40 ~ 125 | Yes (AEC-Q100) | 8-SOIC |
| TS922IDT | STMicroelectronics | Active | 1.3 | 4 | 15 nA | 3 mV | 2 mA | 80 | 2.7 | 12 | -40 ~ 125 | Yes (AEC-Q100) | 8-SOIC |
| TS922IYDT | STMicroelectronics | Active | 1.3 | 4 | 15 nA | 3 mV | 2 mA | 80 | 2.7 | 12 | -40 ~ 125 | Yes (AEC-Q100) | 8-SOIC |
Engineering Selection Recommendations
Primary Substitutes for Automotive Applications:
The TS922IDT, TS922IYDT, and TS922ID from STMicroelectronics are direct functional substitutes for the TLV2422QDR in automotive-grade applications. These parts maintain AEC-Q100 qualification, operate across the full -40°C to 125°C temperature range, and provide the required dual-channel rail-to-rail amplification in 8-SOIC packaging. The TS922IDT and TS922IYDT variants are available in active production status with high inventory levels, ensuring supply continuity.
Secondary Substitute for General-Purpose Applications:
The TLV2422IDR from Texas Instruments provides identical electrical performance to the TLV2422QDR with the same LinCMOS™ series architecture. However, this part is classified as Last Time Buy with a reduced operating temperature range (-40°C to 85°C), making it suitable only for applications not requiring the full 125°C upper temperature limit.
Alternative for Enhanced Performance:
The AD8529ARZ and AD8529ARZ-REEL from Analog Devices Inc. offer improved slew rate (2.9 V/µs versus 0.02 V/µs) and higher gain bandwidth product (8 MHz versus 5.3 MHz). These parts are in active production and support extended supply voltage operation (up to 12 V). However, they lack automotive qualification and exhibit higher input bias current (300 nA versus 1 pA), requiring circuit design evaluation for applications sensitive to input offset characteristics.
Obsolete Alternative:
The MCP6H82-E/SN from Microchip Technology is classified as Obsolete and is not recommended for new designs despite meeting mechanical and basic functional requirements.
Frequently Asked Questions (FAQ)
Q: Can the TS922IDT directly replace the TLV2422QDR on existing PCBs?
A: Yes. Both parts use the 8-SOIC (0.154", 3.90mm Width) surface mount package with identical pinout for dual-channel general-purpose amplification. No PCB layout modifications are required. However, circuit performance differences exist due to variations in slew rate, gain bandwidth product, and input bias current specifications.
Q: What is the key difference between TS922ID, TS922IDT, and TS922IYDT?
A: These three part numbers represent the same TS922 base device with different packaging configurations. TS922ID is supplied in Tube packaging, while TS922IDT and TS922IYDT are supplied in Cut Tape (CT) & Digi-Reel® packaging. Electrical specifications and performance characteristics are identical across all three variants.
Q: Is the AD8529ARZ suitable for automotive applications?
A: The AD8529ARZ is not automotive-qualified and does not carry AEC-Q100 certification. It is suitable for general-purpose industrial and consumer applications but is not recommended for automotive designs requiring automotive-grade components.
Q: Why does the TLV2422IDR have a lower maximum operating temperature than the TLV2422QDR?
A: The TLV2422IDR is classified as Last Time Buy with a maximum operating temperature of 85°C, compared to the TLV2422QDR's 125°C rating. This reflects the device's end-of-life status. Applications requiring full -40°C to 125°C operation must select alternative parts such as the TS922 series.
Q: What is the impact of higher input bias current in the AD8529ARZ?
A: The AD8529ARZ exhibits input bias current of 300 nA compared to the TLV2422QDR's 1 pA. In high-impedance input circuits, this difference may introduce measurable input offset voltage errors. Circuit design evaluation is required for applications with source impedances exceeding 1 MΩ.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All substitute parts listed in this reference maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with modern manufacturing processes and regulatory requirements.
Q: Which substitute offers the best supply availability?
A: The TS922IDT from STMicroelectronics offers the highest inventory level at 107,900 pieces in active production status, providing optimal supply chain reliability for volume production requirements.
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