VCA810AIDG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
VCA810AIDG4 is a voltage-controlled amplifier with voltage-feedback architecture by Texas Instruments in an 8-pin SOIC package. Key specs: 300 µV maximum input offset voltage, 14 µA bias current, frequency compensation for stable operation. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- VCA810AIDG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of VCA810AIDG4?
- Voltage-controlled gain allows continuous gain adjustment via a DC control voltage
- Low 14 µA bias current for efficient operation in portable and precision analog designs
- 300 µV maximum input offset voltage enabling accurate signal amplification
- Frequency-compensated voltage-feedback architecture for stable wide-bandwidth operation
- 8-pin SOIC SMD package for standard PCB surface-mount assembly
What is VCA810AIDG4 used for?
The VCA810AIDG4 is used in programmable gain amplifier stages for ultrasound imaging, medical instrumentation, and communication receivers where gain must be controlled dynamically by a DC voltage. Its voltage-controlled gain enables automatic gain control loops in RF and IF signal chains, maintaining constant output amplitude across varying input levels. Audio processing equipment, test and measurement instruments, and sonar systems also utilize this device for linear gain variation without switching artifacts.
What are the specifications of VCA810AIDG4?
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 14 µA |
| Bias Current-Max (IIB) @25C | -12 µA |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 300 µV |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Low-Bias | YES |
| Low-Offset | YES |
| Micropower | NO |
| Neg Supply Voltage Limit-Max | -6.5 V |
| Neg Supply Voltage-Nom (Vsup) | -5 V |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Min | 295V/us |
| Slew Rate-Nom | 350V/us |
| Supply Current-Max | 24.3mA |
| Supply Voltage Limit-Max | 6.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 35000 |
| 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 |
Where can I find the VCA810AIDG4 datasheet?
VCA810AIDG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for VCA810AIDG4?
Compatible alternatives and drop-in replacements for VCA810AIDG4:
Operational Amplifier, 1 Func, 300uV Offset-Max, 30MHz Band Width, BIPolar, PDSO8
Operational Amplifier, 1 Func, 300uV Offset-Max, 30MHz Band Width, BIPolar, PDSO8
Frequently Asked Questions
How does the VCA810AIDG4 enable automatic gain control in ultrasound receiver front ends?
The VCA810AIDG4 varies its gain linearly with an applied DC control voltage, allowing an AGC loop processor to dynamically adjust amplification as ultrasound echo amplitude changes with depth. This maintains a consistent 50 mV to 500 mV output swing regardless of input level variations across the receive window.
What input offset voltage does VCA810AIDG4 specify, and how does it affect precision DC-coupled signal paths?
The VCA810AIDG4 has a maximum input offset voltage of 300 µV. In DC-coupled amplifier stages with high closed-loop gain, this offset multiplies by the gain factor, contributing a DC error at the output. Careful gain-stage design or offset calibration is needed for applications requiring sub-millivolt DC accuracy.
For a portable ultrasound probe design, why is the low 14 µA bias current of VCA810AIDG4 significant?
At 14 µA bias current, the VCA810AIDG4 draws minimal quiescent current from the analog supply rail, reducing heat dissipation and extending battery life in handheld or portable ultrasound probes. This makes it compatible with tight thermal budgets in compact battery-powered medical imaging devices.
Can VCA810AIDG4 replace a fixed-gain op-amp in a design that later needs programmable gain?
Yes. The VCA810AIDG4 provides a pin-compatible 8-pin SOIC footprint and voltage-feedback architecture similar to standard operational amplifiers. By routing a DAC output to the gain-control input, a fixed-gain stage can be upgraded to variable gain without changing the PCB layout, adding dynamic range control for free.
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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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