OPA1642AIDGKT Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
OPA1642AIDGKT is a dual JFET-input audio op amp with ultra-low noise, 120dB CMRR, and voltage-feedback architecture for high-fidelity audio applications. From $1.044 in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- OPA1642AIDGKT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.0440(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual JFET-input op amp with ultra-low bias current of 0.00002µA for minimal signal loading
- Exceptional 120dB common-mode rejection ratio (126dB typical) for superior noise immunity
- Voltage-feedback architecture optimized for high-fidelity audio signal processing
- Wide supply voltage range with frequency compensation for stable operation
- Small Outline Package (MSOP) for space-efficient PCB integration
Applications
The OPA1642AIDGKT is ideal for professional and consumer audio equipment including preamplifiers, mixing consoles, and audio interface circuits where low noise and high fidelity are critical. Its JFET inputs make it well-suited for high-impedance source applications such as microphone preamps, phono stages, and instrumentation amplifiers. The dual-channel configuration also supports balanced audio signal processing and active filter designs in high-end audio systems.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.00002 µA |
| Bias Current-Max (IIB) @25C | 0.00002 µA |
| Common-mode Reject Ratio-Min | 120dB |
| Common-mode Reject Ratio-Nom | 126dB |
| Frequency Compensation | YES |
| Input Offset Current-Max (IIO) | 0.00002 µA |
| Input Offset Voltage-Max | 3500 µV |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e4 |
| Low-Bias | YES |
| Low-Offset | NO |
| Micropower | NO |
| Neg Supply Voltage Limit-Max | -20 V |
| Neg Supply Voltage-Nom (Vsup) | -18 V |
| Number of Functions | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 20V/us |
| Supply Current-Max | 4.6mA |
| Supply Voltage Limit-Max | 20V |
| Supply Voltage-Nom (Vsup) | 18V |
| Surface Mount | YES |
| Technology | JFET |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 11000 |
| Voltage Gain-Min | 501000 |
| Wideband | NO |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for OPA1642AIDGKT:
Frequently Asked Questions
What are the key electrical specifications of the OPA1642AIDGKT?
The OPA1642AIDGKT features a maximum input bias current (IIB) of 0.00002µA, a minimum common-mode rejection ratio of 120dB (126dB typical), and an input offset current of 0.00002µA. It uses a voltage-feedback architecture with JFET inputs, making it suitable for precision low-noise applications requiring high input impedance.
What are the typical applications for the OPA1642AIDGKT?
The OPA1642AIDGKT is designed for high-performance audio applications including professional mixing consoles, preamplifiers, phono stages, active filters, and audio interface equipment. Its JFET-input design and low bias current make it excellent for high-impedance sensor interfaces, instrumentation amplifiers, and any application requiring ultra-low noise dual op amp performance.
What package does the OPA1642AIDGKT come in and what is its availability?
The OPA1642AIDGKT is available in a Small Outline Package (MSOP/DGK) from Texas Instruments. It is RoHS compliant (Pbfree Code: Yes) with an EOL rating of 15, indicating long-term availability. Pricing starts at $1.044 per unit with worldwide shipping options available for both prototype quantities and production volumes.
How does the OPA1642AIDGKT compare to standard bipolar input op amps?
Compared to bipolar input op amps, the OPA1642AIDGKT's JFET inputs provide significantly higher input impedance and dramatically lower bias current (0.00002µA vs. nA range for bipolar), reducing loading effects on high-impedance sources. The 120dB+ CMRR and Sound-Plus designation indicate it meets stringent audio-grade performance standards that general-purpose bipolar op amps typically cannot achieve.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.3408 | $3.34 |
| 9+ | $2.0880 | $18.79 |
| 10+ | $1.8400 | $18.40 |
| 25+ | $1.6900 | $42.25 |
| 33+ | $1.3920 | $45.94 |
| 88+ | $1.0440 | $91.87 |
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