XOPA2205DGKR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments XOPA2205DGKR is a precision operational amplifier featuring e-trim technology, super-beta bipolar inputs with 0.4 nA max bias current, 140 dB typical CMRR, and ultra-low noise in an SOT-23-compatible small outline package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- XOPA2205DGKR 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
What are the key features of XOPA2205DGKR?
- Ultra-low input bias current of 0.4 nA max at 25 C enabled by super-beta bipolar input transistors
- 140 dB typical common-mode rejection ratio (CMRR) with e-trim precision trimming for minimal offset drift
- Voltage-feedback architecture with frequency compensation for stable gain across wide temperature and supply ranges
What is XOPA2205DGKR used for?
The XOPA2205DGKR is targeted at precision measurement and instrumentation applications where ultra-low input bias current and exceptional CMRR are critical, such as medical electrodes, thermocouple amplifiers, and high-impedance sensor interfaces. Its e-trim technology and super-beta inputs make it ideal for data acquisition front ends, precision voltage references, and low-noise signal conditioning circuits requiring sub-nanoampere input leakage.
What are the specifications of XOPA2205DGKR?
| Date Of Intro | 2020-05-08 |
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.0009 µA |
| Bias Current-Max (IIB) @25C | 0.0004 µA |
| Common-mode Reject Ratio-Min | 124dB |
| Common-mode Reject Ratio-Nom | 140dB |
| Frequency Compensation | YES |
| Input Offset Current-Max (IIO) | 0.0004 µA |
| Input Offset Voltage-Max | 25 µV |
| JESD-30 Code | S-PDSO-G8 |
| Low-Bias | YES |
| Low-Offset | YES |
| Micropower | NO |
| Neg Supply Voltage Limit-Max | -20 V |
| Neg Supply Voltage-Nom (Vsup) | -5 V |
| Number of Functions | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR, 13 INCH |
| Power | NO |
| Programmable Power | NO |
| Slew Rate-Nom | 4V/us |
| Supply Current-Max | 0.62mA |
| Supply Voltage Limit-Max | 20V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Unity Gain BW-Nom | 3600 |
| Voltage Gain-Min | 1995262.3149 |
| Wideband | NO |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Where can I find the XOPA2205DGKR datasheet?
XOPA2205DGKR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for XOPA2205DGKR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What makes the 0.4 nA input bias current of XOPA2205DGKR critical for high-impedance sensor interfaces?
With a maximum input bias current of 0.4 nA at 25 C, the XOPA2205DGKR introduces negligible voltage error even across source impedances of 1 MOhm or higher, producing less than 0.4 mV offset. This makes it essential for pH electrodes, piezoelectric sensors, and high-impedance thermocouple circuits where bias current leakage would corrupt measurement accuracy.
How does the 140 dB CMRR of XOPA2205DGKR benefit differential measurement in noisy environments?
A 140 dB typical CMRR means the XOPA2205DGKR attenuates common-mode noise by a factor of 10 million to 1. In industrial environments with 50 Hz or 60 Hz power-line interference, this level of rejection allows accurate differential measurements at microvolt levels without post-processing digital filtering, simplifying circuit design in ECG monitors and bridge amplifier stages.
What role does e-trim technology play in XOPA2205DGKR's precision over temperature?
TI's e-trim factory trimming adjusts offset voltage and its temperature coefficient at the wafer level, resulting in very low input offset voltage drift across the operating temperature range. Compared to untrimmed op-amps, e-trim-enabled devices maintain accuracy over -40 C to 125 C without requiring external trimming resistors or user calibration on the production PCB.
For a portable medical sensor design, how does XOPA2205DGKR's low bias current compare to JFET-input alternatives?
Super-beta bipolar inputs in the XOPA2205DGKR achieve bias currents as low as 0.4 nA at room temperature, comparable to JFET-input amplifiers but with better CMRR at 124 dB minimum versus typical 80 dB to 100 dB for JFET types. This combination suits battery-powered medical devices that need both low leakage and high common-mode noise rejection in a compact SOT-23 class package.
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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.
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