XOPA1637DGKR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments XOPA1637DGKR is a high-voltage, low-noise fully-differential audio op-amp in 8-VSSOP with 36 V supply range and 3.7 nV/rtHz noise density. Offers 126 dB minimum CMRR and wide operating range from -40°C to 125°C. Available from stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- XOPA1637DGKR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-low voltage noise of 3.7 nV/rtHz for high-fidelity audio signal chains
- Wide 36 V supply range with 126 dB minimum CMRR for superior common-mode rejection
- Fully-differential architecture in compact 8-VSSOP package for balanced audio applications
Applications
The XOPA1637DGKR is designed for high-fidelity audio amplification in professional audio equipment and consumer electronics requiring low noise and high dynamic range. Its fully-differential topology suits ADC driver circuits, line receivers, and balanced audio interfaces where 36 V supply headroom and 140 dB typical CMRR minimize interference. The 8-VSSOP package enables compact PCB layouts in audiophile DAC and preamplifier designs.
Specifications
| Reach Compliance Code | Unknown |
| Date Of Intro | 2019-12-29 |
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.004 µA |
| Bias Current-Max (IIB) @25C | 0.002 µA |
| Common-mode Reject Ratio-Min | 126dB |
| Common-mode Reject Ratio-Nom | 140dB |
| Frequency Compensation | NO |
| Input Offset Current-Max (IIO) | 0.001 µA |
| Input Offset Voltage-Max | 250 µV |
| JESD-30 Code | S-PDSO-G8 |
| Low-Bias | NO |
| Low-Offset | YES |
| Micropower | NO |
| Neg Supply Voltage Limit-Max | -20 V |
| Neg Supply Voltage-Nom (Vsup) | -2.5 V |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Power | NO |
| Programmable Power | NO |
| Slew Rate-Nom | 15V/us |
| Supply Current-Max | 1.6mA |
| Supply Voltage Limit-Max | 20V |
| Supply Voltage-Nom (Vsup) | 2.5V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Unity Gain BW-Nom | 9200 |
| Voltage Gain-Min | 562341.325 |
| Wideband | NO |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for XOPA1637DGKR:
Frequently Asked Questions
What voltage noise specification makes the XOPA1637DGKR suitable for professional audio designs?
The XOPA1637DGKR achieves 3.7 nV/rtHz voltage noise density, which is exceptionally low for a high-voltage op-amp. This noise level ensures a high signal-to-noise ratio in professional audio recording equipment, ADC driver stages, and balanced line receivers operating from supplies up to 36 V.
For a balanced audio interface circuit, how does the XOPA1637DGKR's CMRR performance help reject interference?
The XOPA1637DGKR delivers 140 dB typical CMRR with a minimum of 126 dB, effectively rejecting common-mode noise such as 50 Hz or 60 Hz mains interference in balanced audio lines. This level of rejection is critical for long cable runs in live sound and studio environments where interference rejection directly affects audio quality.
In what temperature environments can the XOPA1637DGKR operate reliably?
The XOPA1637DGKR is rated for -40°C to 125°C operating temperature range, making it suitable for industrial audio processing systems and automotive infotainment applications. The extended temperature range ensures stable 3.7 nV/rtHz noise performance and 126 dB CMRR across varying ambient conditions without additional derating.
What package does the XOPA1637DGKR use and how does it fit compact audio PCB layouts?
The XOPA1637DGKR comes in the 8-VSSOP package, a very small 8-pin outline measuring approximately 3 mm x 3 mm. This compact footprint allows integration into portable audio devices, headphone amplifiers, and multi-channel mixer boards where board space is limited but low-noise 36 V performance is still required.
Related Guides
EEEFK1E470P Selection Guide for 47 uF SMD Aluminum Electrolytic Capacitors
Selection guidance for EEEFK1E470P and nearby Panasonic FK or FT SMD aluminum electrolytic capacitors for power-rail bulk decoupling.
Jul 7, 2026
EEEFT1V101AP Design Guide for SMD Aluminum Electrolytic Bulk Decoupling
Design guidance for using EEEFT1V101AP as an SMD aluminum electrolytic bulk capacitor in power-rail decoupling and hold-up networks.
Jul 7, 2026
How to Choose a 3528 SMD Indicator LED for Blue Status Lighting: Selection Guide
A practical 3528 SMD indicator LED selection guide using 150141BS73100 and related Wurth 150141 variants for blue status lighting.
Jul 5, 2026
BAS70KFILM Design Guide for Low-Leakage Signal Clamping and RF Detector Inputs
Practical BAS70KFILM design guidance for signal clamps, RF detector inputs, leakage control, capacitance, layout, and sourcing alternatives.
Jul 5, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”