Overview
The VCA810IDG4 is a high-performance, broadband, voltage-controlled gain amplifier (VGA) manufactured by Texas Instruments. This integrated circuit (IC) is designed for applications requiring precise gain control over a wide frequency range. It features a differential input to single-ended output conversion, making it suitable for various signal processing tasks. The VCA810IDG4 is widely used in industries such as telecommunications, medical imaging, and industrial automation due to its robust performance and flexibility.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Category | Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps | - | - |
| Description | IC OPAMP VGA 35MHZ SGL 8SOIC | - | - |
| Amplifier Type | Variable Gain | - | - |
| Number of Circuits | 1 | - | - |
| Slew Rate | 350 | V/µs | - |
| 3dB Bandwidth | 35 | MHz | - |
| Input Bias Current | 6 | µA | - |
| Input Offset Voltage | 100 | µV | - |
| Supply Current | 20 | mA | - |
| Output Current | 60 | mA | - |
| Supply Voltage | ±4 V ~ 6 V | - | - |
| Operating Temperature | -40°C ~ 85°C | - | - |
| Mounting Type | Surface Mount | - | - |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | - | - |
| Supplier Device Package | 8-SOIC | - | - |
| Packaging | Tube | - | - |
Key Features
- High gain adjustment range: ±40 dB
- Differential to single-ended output conversion
- Low input noise voltage: 2.4 nV/√Hz
- Constant bandwidth with gain: up to 35 MHz
- High dB/V gain linearity: ±0.3 dB
- Gain control bandwidth: 25 MHz
- Low output DC error: <±40 mV
- High output current: ±60 mA
- Low supply current: 24.8 mA (max)
Applications
The VCA810IDG4 is versatile and finds applications in various fields. It is commonly used in optical receiver time gain control, sonar systems, voltage-tunable active filters, logarithmic amplifiers, and pulse amplitude compensation. Additionally, it is employed in AGC (Automatic Gain Control) receivers with RSSI (Received Signal Strength Indicator) and as an improvement over the VCA610 in specific applications. Its ability to maintain signal integrity and precise gain control makes it a preferred choice in demanding environments.
Q & A
1. What is the gain range of the VCA810IDG4?
The VCA810IDG4 offers a gain range of ±40 dB.
2. What is the bandwidth of the VCA810IDG4?
The 3dB bandwidth is 35 MHz.
3. What is the input bias current of the VCA810IDG4?
The input bias current is 6 µA.
4. What is the supply voltage range for the VCA810IDG4?
The supply voltage range is ±4 V to 6 V.
5. What is the operating temperature range of the VCA810IDG4?
The operating temperature range is -40°C to 85°C.
6. What is the output current capability of the VCA810IDG4?
The output current is ±60 mA.
7. What is the package type of the VCA810IDG4?
The package type is 8-SOIC (0.154", 3.90mm Width).
8. What is the input offset voltage of the VCA810IDG4?
The input offset voltage is 100 µV.
9. What are the key applications of the VCA810IDG4?
Key applications include optical receiver time gain control, sonar systems, and AGC receivers with RSSI.
10. What is the slew rate of the VCA810IDG4?
The slew rate is 350 V/µs.
